Book chapters or sections
E. Wong, X. Zhao, C. Chang-Hasnain, W. Hofmann, and M. C. Amann, "Applications of 1.55 mu m optically injection-locked VCSELs in wavelength division multiplexed passive optical networks (Invited Paper) ," in Optical Transmission, Switching, and Subsystems V , D. Chiaroni, W. Gu, K. Kitayama, and C. S. Park, Eds., Proceedings of SPIE, Vol. 6783, Bellingham, WA: SPIE -- Society of Photo-Optical Instrumentation Engineers, 2007, pp. 678832M1-13.
G. Hasnain, C. Chang-Hasnain, A. Dienes, and J. R. Whinnery, "Integrated optical circuits using doping superlattices," in Integrated Optical Circuit Engineering V , M. A. Mentzer, Ed., Proceedings of SPIE, Vol. 0835, Bellingham, WA: SPIE -- Society of Photo-Optical Instrumentation Engineers, 1987, pp. 49-52.
Articles in journals or magazines
W. Yang, T. Sun, Y. Rao, M. Megens, T. Chan, B. Yoo, D. A. Horsley, M. C. Wu, and C. Chang-Hasnain, "High speed optical phased array using high contrast grating all-pass filters ," Optics Express , vol. 22, no. 17, pp. 20038, Aug. 2014.
B. Yoo, M. Megens, T. Sun, W. Yang, C. Chang-Hasnain, D. A. Horsley, and M. C. Wu, "A 32 × 32 optical phased array using polysilicon sub-wavelength high-contrast-grating mirrors ," Optics Express , vol. 22, no. 16, pp. 19029, Aug. 2014.
K. W. Ng, W. S. Ko, F. Lu, and C. Chang-Hasnain, "Metastable Growth of Pure Wurtzite InGaAs Microstructures ," Nano Letters , vol. 14, no. 8, pp. 4757–4762, July 2014.
R. Chen, K. W. Ng, W. S. Ko, D. Parekh, F. Lu, T. D. Tran, K. Li, and C. Chang-Hasnain, "Nanophotonic integrated circuits from nanoresonators grown on silicon ," Nature communications , vol. 5, no. 4325, July 2014.
W. Yang, J. Ferrara, K. Grutter, A. Yeh, C. Chase, Y. Yue, A. E. Willner, M. C. Wu, and C. Chang-Hasnain, "Low loss hollow-core waveguide on a silicon substrate ," Nanophotonics , vol. 1, no. 1, pp. 23--29, Jan. 2012.
Y. Zhou, M. C. Y. Huang, and C. Chang-Hasnain, "Tunable VCSEL with ultra-thin high contrast grating for high-speed tuning ," Optics Express , vol. 16, no. 18, pp. 14221-14226, Sep. 2008.
M. Moewe, L. C. Chuang, V. G. Dubrovskii, and C. Chang-Hasnain, "Growth mechanisms and crystallographic structure of InP nanowires on lattice-mismatched substrates ," J. Applied Physics , vol. 104, no. 4, pp. 044313-1-4, Aug. 2008.
M. Moewe, L. C. Chuang, S. Crankshaw, C. Chase, and C. Chang-Hasnain, "Atomically sharp catalyst-free wurtzite GaAs/AlGaAs nanoneedles grown on silicon ," Applied Physics Letters , vol. 93, no. 2, pp. 023116-1-3, July 2008.
E. Wong, X. Zhao, and C. Chang-Hasnain, "Upstream vertical cavity surface-emitting lasers for fault monitoring and localization in WDM passive optical networks ," Optics Communications , vol. 281, no. 8, pp. 2218-2226, April 2008.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Single mode high-contrast subwavelength grating vertical cavity surface emitting lasers ," Applied Physics Letters , vol. 92, no. 17, pp. 171108-1-3, April 2008.
E. K. Lau, X. Zhao, H. Sung, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Strong optical injection-locked semiconductor lasers demonstrating > 100-GHz resonance frequencies and 80-GHz intrinsic bandwidths ," Optics Express , vol. 16, no. 9, pp. 6609-6618, April 2008.
M. C. Y. Huang, C. F. R. Mateus, J. E. Foley, R. Beatty, B. T. Cunningham, and C. Chang-Hasnain, "VCSEL optoelectronic biosensor for detection of infectious diseases ," IEEE Photonics Technology Letters , vol. 20, no. 6, pp. 443-445, March 2008.
X. Zhao and C. Chang-Hasnain, "A new amplifier model for resonance enhancement of optically injection-locked lasers ," IEEE Photonics Technology Letters , vol. 20, no. 6, pp. 395-397, March 2008.
Y. Zhou, M. C. Y. Huang, and C. Chang-Hasnain, "Large fabrication tolerance for VCSELs using high-contrast grating ," IEEE Photonics Technology Letters , vol. 20, no. 6, pp. 434-436, March 2008.
L. C. Chuang, M. Moewe, S. Crankshaw, and C. Chang-Hasnain, "Optical properties of InP nanowires on Si substrates with varied synthesis parameters ," Applied Physics Letters , vol. 92, no. 1, pp. 013121-1-3, Jan. 2008.
B. Pesala, F. G. Sedgwick, A. V. Uskov, and C. Chang-Hasnain, "Electrically tunable fast light at THz bandwidth using cascaded semiconductor optical amplifiers ," Optics Express , vol. 15, no. 24, pp. 15863-15867, Nov. 2007.
X. Zhao, D. Parekh, E. K. Lau, H. K. Sung, M. C. Wu, W. Hofmann, M. C. Amann, and C. Chang-Hasnain, "Novel cascaded injection-locked 1.55-mu m VCSELs with 66 GHz modulation bandwidth ," Optics Express , vol. 15, no. 22, pp. 14810-14816, Oct. 2007.
S. Reitzenstein, S. Munch, C. Hofmann, A. Forchel, S. Crankshaw, L. C. Chuang, M. Moewe, and C. Chang-Hasnain, "Time resolved microphotoluminescence studies of single InP nanowires grown by low pressure metal organic chemical vapor deposition ," Applied Physics Letters , vol. 91, pp. 091103-1-3, Aug. 2007.
S. W. Chang, S. L. Chuang, C. Chang-Hasnain, and H. Wang, "Slow light using spin coherence and V-type electromagnetically induced transparency in [110] strained quantum wells ," J. Optical Society of America B: Optical Physics , vol. 24, no. 4, pp. 849-859, April 2007.
P. C. Ku, C. Chang-Hasnain, and S. L. Chuang, "Slow light in semiconductor heterostructures (Invited Topical Review) ," J. Physics D: Applied Physics , vol. 40, no. 5, pp. R93-R107, March 2007.
M. C. Y. Huang, K. B. Cheng, Y. Zhou, A. Pisano, and C. Chang-Hasnain, "Monolithic integrated piezoelectric MEMS-tunable VCSEL ," IEEE J. Selected Topics in Quantum Electronics , vol. 13, no. 2, pp. 374-380, March 2007.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Nano electro-mechanical optoelectronic tunable VCSEL ," Optics Express , vol. 15, no. 3, pp. 1222-1227, Feb. 2007.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "A surface-emitting laser incorporating a high-index-contrast subwavelength grating ," Nature Photonics , vol. 1, no. 2, pp. 119-122, Feb. 2007.
E. Wong, X. Zhao, C. Chang-Hasnain, W. Hofmann, and M. C. Amann, "Rayleigh backscattering and extinction ratio study of optically injection-locked 1.55 mu m VCSELs ," Electronics Letters , vol. 43, no. 3, pp. 182-183, Feb. 2007.
F. G. Sedgwick, B. Pesala, J. Y. Lin, W. S. Ko, X. Zhao, and C. Chang-Hasnain, "THz-bandwidth tunable slow light in semiconductor optical amplifiers ," Optics Express , vol. 15, no. 2, pp. 747-753, Jan. 2007.
L. C. Chuang, M. Moewe, C. Chase, N. P. Kobayashi, C. Chang-Hasnain, and S. Crankshaw, "Critical diameter for III-V nanowires grown on lattice-mismatched substrates ," Applied Physics Letters , vol. 90, no. 4, pp. 043115-1-3, Jan. 2007.
C. Chang-Hasnain and S. L. Chuang, "Slow and fast light in semiconductor quantum-well and quantum-dot devices (Invited Paper) ," IEEE/OSA J. Lightwave Technology: Special Issue on Optoelectronics , vol. 24, no. 12, pp. 4642-4654, Dec. 2006.
B. Pesala, C. Zhangyuan, A. V. Uskov, and C. Chang-Hasnain, "Experimental demonstration of slow and superluminal light in semiconductor optical amplifiers ," Optics Express , vol. 14, no. 26, pp. 12968-12975, Dec. 2006.
R. S. Tucker, P. Ku, and C. Chang-Hasnain, "Slow-light optical buffers: capabilities and fundamental limitations ," J. Lightwave Technology , vol. 23, no. 12, pp. 4046-4066, Dec. 2005.
X. Zhao, P. Palinginis, B. Pesala, C. Chang-Hasnain, and P. Hemmer, "Tunable ultraslow light in vertical-cavity surface-emitting laser amplifier ," Optics Express , vol. 13, no. 20, pp. 7899-7904, Oct. 2005.
G. Piazza, K. Castelino, A. Pisano, and C. Chang-Hasnain, "Design of a monolithic piezoelectrically actuated microelectromechanical tunable vertical-cavity surface-emitting laser ," Optics Letters , vol. 30, no. 8, pp. 896-898, April 2005.
C. F. R. Mateus, M. C. Y. Huang, Y. Deng, A. R. Neureuther, and C. Chang-Hasnain, "Ultrabroadband mirror using low-index cladded subwavelength grating ," IEEE Photonics Technology Letters , vol. 16, no. 2, pp. 518-520, Feb. 2004.
C. Chang-Hasnain, "Tunable VCSEL ," IEEE J. Selected Topics in Quantum Electronics , vol. 6, no. 6, pp. 978-987, Nov. 2000.
W. Yuen, G. S. Li, R. F. Nabiev, J. Boucart, P. Kner, R. J. Stone, D. Zhang, M. Beaudoin, T. Zheng, C. He, K. Yu, M. Jansen, D. P. Worland, and C. Chang-Hasnain, "High-performance 1.6-mu m single-epitaxy top-emitting VCSEL ," Electronics Letters , vol. 36, no. 13, pp. 1121-1123, June 2000.
E. C. Vail, M. S. Wu, G. S. Li, L. Eng, and C. Chang-Hasnain, "GaAs micromachined widely tunable Fabry-Perot filters ," Electronics Letters , vol. 31, no. 3, pp. 228-229, Feb. 1995.
C. Chang-Hasnain, J. P. Harbison, C. Zah, M. W. Maeda, L. T. Florez, N. G. Stoffel, and T. Lee, "Multiple wavelength tunable surface-emitting laser arrays ," IEEE J. Quantum Electronics , vol. 27, no. 6, pp. 1368-1376, June 1991.
C. Chang-Hasnain, J. P. Harbison, G. Hasnain, A. C. Von Lehmen, L. T. Florez, and N. G. Stoffel, "Dynamic, polarization, and transverse mode characteristics of vertical cavity surface emitting lasers ," IEEE J. Quantum Electronics , vol. 27, no. 6, pp. 1402-1409, June 1991.
C. Chang-Hasnain, M. Orenstein, A. Von Lehmen, L. T. Florez, J. P. Harbison, and N. G. Stoffel, "Transverse mode characteristics of vertical cavity surface-emitting lasers ," Applied Physics Letters , vol. 57, no. 3, pp. 218-220, July 1990.
C. Chang-Hasnain, A. Dienes, J. R. Whinnery, W. Streifer, and D. R. Scifres, "Characteristics of the off-centered apertured mirror external cavity laser array ," Applied Physics Letters , vol. 54, no. 6, pp. 484-486, Feb. 1989.
G. Hasnain, C. Chang-Hasnain, A. Dienes, and J. R. Whinnery, "Characteristics of a monolithically integrated doping superlattice optical circuit ," Applied Physics Letters , vol. 52, no. 21, pp. 1765-1767, May 1988.
G. Hasnain, C. Chang-Hasnain, G. H. Doehler, N. M. Johnson, D. Mars, J. N. Miller, and J. R. Whinnery, "High quality selective contacts to n-i-p-i doping superlattices," Journal de Physique Colloque , vol. 48, no. C-5, pp. 605-609, Nov. 1987.
C. Chang-Hasnain, J. Berger, D. R. Scifres, W. Streifer, J. R. Whinnery, and A. Dienes, "High power with high efficiency in a narrow single-lobed beam from a diode laser array in an external cavity ," Applied Physics Letters , vol. 50, no. 21, pp. 1465-1467, May 1987.
C. Chang-Hasnain, G. Hasnain, N. M. Johnson, G. H. Dohler, J. N. Miller, J. R. Whinnery, and A. Dienes, "Tunable electroabsorption in gallium arsenide doping superlattices ," Applied Physics Letters , vol. 50, no. 14, pp. 915-917, April 1987.
G. Hasnain, C. Chang-Hasnain, G. H. Doehler, J. N. Miller, N. M. Johnson, J. R. Whinnery, and A. Dienes, "Tunable absorption and electroluminescence in GaAs doping superlattice," Superlattices and Microstructures , vol. 3, no. 3, pp. 277-282, March 1987.
C. Chang-Hasnain, G. Hasnain, G. H. Doehler, N. M. Johnson, J. N. Miller, J. R. Whinnery, and A. Dienes, "Tunable electroabsorption and electroluminescence in GaAs doping superlattices," Proc. SPIE - The Intl. Society for Optical Engineering , vol. 792, pp. 45-49, March 1987.
C. Chang-Hasnain, D. F. Welch, D. R. Scifres, J. R. Whinnery, A. Dienes, and R. D. Burnham, "Diffraction-limited emission from a diode laser array in an apertured graded-index lens external cavity ," Applied Physics Letters , vol. 49, no. 11, pp. 614-616, Sep. 1986.
Articles in conference proceedings
B. Pesala, F. G. Sedgwick, W. S. Ko, and C. Chang-Hasnain, "Electrically tunable fast light of 86 fs pulses in semiconductor optical ampliers ," in Proc. 2008 OSA Slow and Fast Light (SL '08) Topical Meeting , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
F. G. Sedgwick, B. Pesala, and C. Chang-Hasnain, "Novel Chirp and Compensate Scheme to Enhance Fast Light in a Semiconductor Optical Amplifier (Invited Talk) ," in Proc. 2008 Slow and Fast Light (SL '08) Topical Meeting , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
V. Karagodsky, M. C. Y. Huang, and C. Chang-Hasnain, "Analytical solution and design guideline for highly reflective subwavelength gratings ," in 2008 Quantum Electronics and Laser Science Conf. (QELS '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
K. Hasebe, X. Zhao, T. Sakaguchi, F. Koyama, C. Chang-Hasnain, N. Nishiyama, C. Caneau, and C. E. Zah, "Bandwidth enhancement with tunable optical equalizer for high speed intensity modulation ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Ultra thin HCG in a NEMO tunable VCSEL ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Polarization mode control in high contrast subwavelength grating VCSEL ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
Y. Zhou, M. Moewe, J. Kern, M. C. Y. Huang, and C. Chang-Hasnain, "A novel high-Q resonator using high contrast subwavelength grating ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
F. G. Sedgwick, B. Pesala, and C. Chang-Hasnain, "Chirped-pulse slow and fast light in SOA with a record delay-bandwidth product of 10.7 ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
X. Zhao, B. Zhang, L. Christen, D. Parekh, F. Koyama, W. Hofmann, M. C. Amann, A. E. Willner, and C. Chang-Hasnain, "Data inversion and adjustable chirp in 10-Gbps directly-modulated injection-locked 1.55-mu m VCSELs ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
D. Seletskiy, M. P. Hasselbeck, M. Sheik-Bahae, J. G. Cederberg, L. C. Chuang, M. Moewe, and C. Chang-Hasnain, "Observation of THz emission from InAS nanowires ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
M. Moewe, L. C. Chuang, S. Crankshaw, and C. Chang-Hasnain, "Bright photoluminescence from GaAs and InGaAs nanoneedles grown on Si substrates ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
X. Zhao, E. K. Lau, D. Parekh, H. K. Sung, W. Hofmann, M. C. Amann, M. C. Wu, and C. Chang-Hasnain, "107-GHz resonance frequency of 1.55-mu m VCSELs under ultra-high optical injection locking ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
M. C. Tien, A. T. Ohta, K. Yu, L. C. Chuang, A. Jamshidi, S. Neale, C. Hou, C. Chang-Hasnain, and M. C. Wu, "Hybrid microdisk laser on a silicon platform using lateral-field optoelectronic tweezers assembly ," in 2008 Conf. on Lasers and Electro-Optics (CLEO '08) Technical Digest , Washington, DC: Optical Society of America, 2008, pp. 2 pg.
B. Pesala, F. G. Sedgwick, A. V. Uskov, and C. Chang-Hasnain, "Novel chirp-enhanced tunable fast light of ultra-short pulses in semiconductor optical amplifiers ," in Proc. 2008 Optical Fiber Communication Conf./National Fiber Optic Engineers Conf. (OFC/NFOEC '08) , Washington, DC: Optical Society of America, 2008, pp. 3 pg.
M. C. Wu, C. Chang-Hasnain, E. K. Lau, and X. Zhao, "High-speed modulation of optical injection-locked semiconductor lasers (Invited) ," in Proc. 2008 Optical Fiber Communication Conf./National Fiber Optic Engineers Conf. (OFC/NFOEC '08) , Washington, DC: Optical Society of America, 2008, pp. 3 pg.
B. Zhang, X. Zhao, L. Christen, D. Parekh, W. Hofmann, M. C. Wu, M. C. Amann, C. Chang-Hasnain, and A. E. Willner, "Adjustable chirp injection-locked 1.55-mu m VCSELs for enhanced chromatic dispersion compensation at 10-Gbit/s ," in Proc. 2008 Optical Fiber Communication Conf./National Fiber Optic Engineers Conf. (OFC/NFOEC '08) , Washington, DC: Optical Society of America, 2008, pp. 3 pg.
E. K. Lau, H. Sung, X. Zhao, D. Parekh, Y. Chen, C. Chang-Hasnain, and M. C. Wu, "Bandwidth enhancement by optical amplitude and phase modulation of injection-locked semiconductor lasers ," in Proc. 2007 IEEE Intl. Topical Meeting on Microwave Photonics (MWP '07) , Piscataway, NJ: IEEE Press, 2007, pp. 241-244.
E. K. Lau, H. Sung, X. Zhao, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Bandwidth enhancement of electro-absorption modulated lasers by optical injection locking ," in Proc. 20th Annual Meeting of IEEE Lasers and Electro-Optics Society (LEOS '07) , Piscataway, NJ: IEEE Press, 2007, pp. 188-189.
X. Zhao, D. Parekh, H. Sung, E. Lau, M. C. Wu, and C. Chang-Hasnain, "Optoelectronic oscillator using injection-locked VCSELs ," in Proc. 20th Annual Meeting of IEEE Lasers and Electro-Optics Society (LEOS 2007) , Piscataway, NJ: IEEE Press, 2007, pp. 190-191.
A. V. Uskov, F. G. Sedgwick, B. Pesala, and C. Chang-Hasnain, "Ultrafast nonlinear group index in semiconductor optical amplifiers for slow and fast light ," in 2007 OSA Frontiers in Optics (FiO '07) Meeting Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 1 pg.
E. K. Lau, H. K. Sung, X. Zhao, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Bandwidth enhancement by optical modulation of injection-locked semiconductor lasers ," in 2007 OSA Frontiers in Optics (FiO '07) Meeting Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 1 pg.
D. Parekh, L. Thylen, and C. Chang-Hasnain, "Metal nanoparticle metamaterials for engineering dielectric constants and their applications to near resonant surface plasmon waveguides ," in 2007 OSA Frontiers in Optics (FiO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 1 pg.
Y. Zhou, M. C. Y. Huang, J. Kern, and C. Chang-Hasnain, "Very large fabrication tolerance of VCSELs using high-contrast subwavelength grating ," in 2007 OSA Frontiers in Optics Meeting (FiO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 1 pg.
S. Crankshaw, S. Reitzenstein, L. C. Chuang, M. Moewe, S. Munch, C. Hofmann, A. Forchel, and C. Chang-Hasnain, "Time-resolved luminescence of epitaxial InP nanowires on (111)Si ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 162-163.
L. C. Chuang, M. Moewe, S. Crankshaw, C. Chase, and C. Chang-Hasnain, "Epitaxial III-V nanowires on lattice-mismatched substrates by MOCVD ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 94-95.
C. Chang-Hasnain, "Progress and Prospects of Nano-Optoelectronic Devices for Optical Communications (Invited Talk) ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 67-67.
D. Parekh, L. Thylen, and C. Chang-Hasnain, "Metal nanoparticle and quantum dot metamaterials for near resonant surface plasmon waveguides ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 150-151.
F. G. Sedgwick, B. Pesala, A. V. Uskov, and C. Chang-Hasnain, "THz-bandwidth fast light in semiconductor optical amplifiers for two pulses in rapid succession ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 178-179.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "High-speed nano electromechanical optoelectronic tunable VCSEL ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 212-213.
C. Chang-Hasnain, "Nanowires and nanoneedles (Invited Talk) ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 28-28.
B. Pesala, F. G. Sedgwick, A. V. Uskov, and C. Chang-Hasnain, "Polarization dependence of THz bandwidth fast light in semiconductor optical amplifiers ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 114-115.
Y. Zhou, M. C. Y. Huang, J. Kern, and C. Chang-Hasnain, "High-contrast subwavelength grating integrated VCSELs with a large fabrication tolerance ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 250-251.
C. Chase, M. Huang, L. Chang, M. Moewe, and C. Chang-Hasnain, "Electrical characteristics of GaAs nanoneedles ," in Proc. 2007 Intl. Nano-Optoelectronic Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 124-125.
S. Reitzenstein, S. Crankshaw, S. Munch, L. C. Chuang, M. Moewe, C. Bockler, A. Forchel, and C. Chang-Hasnain, "Time resolved mirco-photoluminescence studies of as-grown and surface passivated InP-nanowires grown by low pressure MOVPE ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 182-183.
X. Zhao, D. Parekh, E. Lau, H. K. Sung, M. C. Wu, and C. Chang-Hasnain, "High-speed laser transmitters using cascaded optical injection locking ," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07) , Piscataway, NJ: IEEE Press, 2007, pp. 196-197.
S. Crankshaw, F. G. Sedgwick, M. Moewe, and C. Chang-Hasnain, "Electron g-factor anisotropy in (110) GaAs quantum wells," in Proc. 2007 Montana Meeting on Fundamental Optical Processes in Semiconductors (FOPS '07) , 2007.
C. Chang-Hasnain, "III-V nanowires on Si for optical interconnects applications (Invited Presentation)," in Proc. 2007 Montana Meeting on Fundamental Optical Processes in Semiconductors (FOPS '07) , 2007, pp. 25-25.
F. G. Sedgwick, B. Pesala, J. Y. Lin, C. Chang-Hasnain, and T. Lin, "Increase of fractional advance in THz-bandwidth fast light by pulse chirping in an SOA ," in Proc. 2007 OSA Slow and Fast Light (SL '07) Topical Meeting , Washington, DC: Optical Society of America, 2007, pp. 3 pg.
B. Pesala, F. G. Sedgwick, A. V. Uskov, C. Chang-Hasnain, and T. H. Lin, "THz tunable slow light and fast light of ultrashort pulses in semiconductor optical amplifiers ," in 2007 OSA Slow and Fast Light (SL '07) Topical Meeting , Washington, DC: Optical Society of America, 2007, pp. 3 pg.
M. Moewe, L. C. Chuang, S. Crankshaw, and C. Chang-Hasnain, "V/III ratio effects on the shape and optical properties of InP nanowires grown on silicon," in Prod. 49th Electronic Materials Conf. (EMC 2007) , 2007.
X. Zhao, D. Parekh, E. K. Lau, H. K. Sung, M. C. Wu, and C. Chang-Hasnain, "Cascaded injection-locked 1.55-mu m VCSELs for high-speed transmission ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Postdeadline Papers , Washington, DC: Optical Society of America, 2007, pp. 2 pg.
Y. Zhou, M. C. Y. Huang, and C. Chang-Hasnain, "Transverse mode control in high-contrast subwavelength grating VCSEL ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 2 pg.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Nano electromechanical optoelectronic tunable VCSEL ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 2 pg.
L. C. Chuang, M. Moewe, S. Crankshaw, and C. Chang-Hasnain, "Effects of V/III ratiois for InP nanowires grown on Si substrates ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 820-821.
S. Crankshaw, S. Reitzenstein, L. C. Chuang, M. Moewe, S. Munch, C. Hofman, M. Lam, A. Forchel, and C. Chang-Hasnain, "Time-resolved spectroscopy of epitaxial InP nanowires ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 822-823.
B. Pesala, F. G. Sedgwick, and C. Chang-Hasnain, "Ultra high bandwidth THz tunable delays using cascaded semiconductor optical amplifiers ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 1680-1681.
H. Sung, E. K. Lau, X. Zhao, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Optically injection-locked optoelectronic oscillators with low RF threshold gain ," in 2007 Conf. on Lasers and Electro-Optics (CLEO '07) Technical Digest , Washington, DC: Optical Society of America, 2007, pp. 2 pg.
F. G. Sedgwick, B. Pesala, J. Y. Lin, W. S. Ko, X. Zhao, and C. Chang-Hasnain, "THz tunable slow light in semiconductor optical amplifiers ," in 2007 Conf. on Optical Fiber Communication/National Fiber Optic Engineers Conf. (OFC/NFOEC '07) Technical Digest , Vol. 2, Washington, DC: Optical Society of America, 2007, pp. 416-418.
E. Wong, X. Zhao, and C. Chang-Hasnain, "Novel fault monitoring and localization scheme in WDM-PONs with upstream VCSEL transmitters ," in 2007 Conf. on Optical Fiber Communication/National Fiber Optic Engineers Conf. (OFC/NFOEC '07) Technical Digest , Vol. 2, Washington, DC: Optical Society of America, 2007, pp. 3 pg.
C. Chang-Hasnain, "Slow and fast light in semiconductors (Invited Paper) ," in Proc. 2006 IEEE LEOS Annual Meeting (LEOS '06) , Piscataway, NJ: IEEE Press, 2006, pp. 418-419.
Y. Zhou, M. C. Y. Huang, and C. Chang-Hasnain, "Novel surface emitting laser using high-contrast subwavelength grating ," in 2006 IEEE 20th Intl. Semiconductor Laser Conf. Digest , Piscataway, NJ: IEEE Press, 2006, pp. 107-108.
M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Nanoscale high-contrast subwavelength grating integrated tunable surface emitting laser ," in Proc. 2006 IEEE/LEOS Intl. Conf. on Optical MEMs and Their Applications , Piscataway, NJ: IEEE Press, 2006, pp. 13-14.
C. Chang-Hasnain, J. R. Whinnery, A. Dienes, W. Streifer, and D. R. Scifres, "Theoretical analysis of the off-centered aperture mirror external cavity laser array," in 1988 Conf. on Lasers and Electro-Optics (CLEO '88) Technical Digest , Vol. 7, Washington, D.C.: Optical Society of America, 1988, pp. 123-123.
C. Chang-Hasnain, J. R. Whinnery, A. Dienes, J. Berger, D. R. Scifres, and W. Streifer, "Narrow single lobed emission with high power and high efficiency from an external cavity coupled laser array," in 1987 Conf. on Lasers and Electro-Optics (CLEO '87) Technical Digest , Washington, D.C.: Optical Society of America, 1987, pp. 404-404.
G. Hasnain, C. Chang-Hasnain, and J. R. Whinnery, "Use of doping superlattices for tunable emitters and modulators," in Proc. NSF Workshop on Optical Nonlinearities, Fast Phenomena and Signal Processing , Washington, D.C.: National Science Foundation, 1986, pp. 303-308.
Patents
T. Schenkel, A. Persaud, R. Kapadia, A. Javey, C. Chang-Hasnain, I. Rangelow, and J. Kwan, "Compact ion source neutron generator ," U.S. Patent 9,161,429. Oct. 2015.
C. Chang-Hasnain, F. Sedgwick, R. Chen, T. D. Tran, K. W. Ng, and W. S. Ko, "Nanopillar optical resonator ," U.S. Patent 9,093,818. July 2015.
C. Chuang, C. Chang-Hasnain, F. G. Sedwick, and W. S. Ko, "Nanoneedle plasmonic photodetectors and solar cells ," U.S. Patent 8,809,672. Aug. 2014.
C. Chang-Hasnain, C. Chase, F. Lu, F. G. Sedgwick, and V. Karagodsky, "Planar, high NA, low loss transmitting or reflecting lenses using sub-wavelength high contrast grating ," U.S. Patent 8,755,118. July 2014.
C. Chuang, C. Chang-Hasnain, F. G. Sedgwick, IV, and W. S. Ko, "Nanoneedle plasmonic photodetectors and solar cells ," U.S. Patent 8,673,680. March 2014.
C. Chang-Hasnain, W. Yang, C. Chase, and F. G. Sedgwixk, "High contrast grating based saturable absorber for mode-locked lasers and its applications in passively mode-locked vertical-cavity surface-emitting lasers ," U.S. Patent 8,526,471. Sep. 2013.
C. Chang-Hasnain, C. Chase, and V. Karagodsky, "HCG reflection enhancement in diverse refractive index material ," U.S. Patent 8,488,646. July 2013.
C. Chang-Hasnain, Y. Zhou, V. Karagodsky, F. G. Sedgwixk, and M. C. Huang, "Ultra-low loss hollow core waveguide using high-contrast gratings ," U.S. Patent 8,442,374. May 2013.
C. Chang-Hasnain, M. C. Huang, Y. Zhou, and C. F. R. Mateus, "Sub-wavelength grating integrated VCSEL ," U.S. Patent 8,189,643. May 2012.
C. Chang-Hasnain, M. C. Huang, Y. Zhou, and C. F. R. Mateus, "Sub-wavelength grating integrated VCSEL ," U.S. Patent 8,059,690. Nov. 2011.
B. T. Cunningham, P. Y. Li, C. Chang-Hasnain, and C. Mateus, "Detection of biochemical interactions on a biosensor using tunable filters and tunable lasers ," U.S. Patent 7,497,992. March 2009.
C. Chang-Hasnain, C. F. R. Mateus, and M. C. Huang, "Ultra broadband mirror using subwavelength grating ," U.S. Patent 7,304,781. Dec. 2007.
C. J. Chang-Hasnain and P. Ku, "Variable semiconductor all-optical buffer using slow light based on electromagnetically induced transparency ," U.S. Patent 7,038,827. May 2006.
C. J. Chang-Hasnain and P. Ku, "Variable semiconductor all-optical buffer using slow light based on electromagnetically induced transparency ," U.S. Patent 6,900,920. May 2005.
S. M. Chase, C. J. Chang-Hasnain, and J. M. Waite, "Apparatus and method for controlled cantilever motion through torsional beams and a counterweight ," U.S. Patent 6,813,053. Nov. 2004.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,760,357. July 2004.
B. T. Cunningham, P. Y. Li, C. Chang-Hasnain, and C. Mateus, "Detection of biochemical interactions on a biosensor using tunable filters and tunable lasers," U.S. Patent Application. May 2003.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,535,541. March 2003.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,493,373. Dec. 2002.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,493,372. Dec. 2002.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,493,371. Dec. 2002.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,490,311. Dec. 2002.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,487,231. Nov. 2002.
J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction ," U.S. Patent 6,487,230. Nov. 2002.
C. Chang-Hasnain, R. Dato, P. Worland, and R. Yu, "Hermetically sealed semiconductor laser device ," U.S. Patent 6,275,513. Aug. 2001.
C. Chang-Hasnain, R. Dato, P. Kner, G. S. Li, P. Worland, R. Yu, and W. Yuen, "Monitoring and control assembly for wavelength stabilized optical system ," U.S. Patent 6,233,263. May 2001.
C. Chang-Hasnain, M. Schwager, and R. Yu, "Flexible optical multiplexer ," U.S. Patent 6,226,425. May 2001.
C. Chang-Hasnain, G. Li, and W. Yuen, "Vertical optical cavities produced with selective area epitaxy ," U.S. Patent 6,222,871. April 2001.
D. Sun, C. Chang-Hasnain, and M. Jansen, "Opto-electronic devices with multiple oxide apertures," U.S. Patent Application. March 2001.
W. Yuen, C. J. Chang-Hasnain, and G. S. Li, "Fabrication of multiple-wavelength vertical-cavity opto-electronic device arrays ," U.S. Patent 6,174,749. Jan. 2001.
Y. Wu and C. J. Chang-Hasnain, "Method for quality control and yield enhancement ," U.S. Patent 6,148,268. Nov. 2000.
S. F. Lim, J. A. Hudgings, K. Lau, and C. J. Chang-Hasnain, "Vertical-cavity surface-emitting laser with an intracavity quantum-well optical absorber ," U.S. Patent 6,026,108. Feb. 2000.
G. S. Li, W. Yuen, and C. J. Chang-Hasnain, "Vertical optical cavities produced with selective area epitaxy ," U.S. Patent 5,960,024. Sep. 1999.
R. F. Nabiev, C. J. Chang-Hasnain, L. E. Eng, and K. Lau, "Monolithic wavelength meter and photodetector using a wavelength dependent reflector ," U.S. Patent 5,760,419. June 1998.
C. J. Chang-Hasnain, E. C. Vail, and M. S. Wu, "High performance micromechanical tunable vertical cavity surface emitting laser ," U.S. Patent 5,771,253. June 1998.
S. F. Lim and C. J. Chang-Hasnain, "Intracavity quantum well photodetector integrated within a vertical-cavity surface-emitting laser and method of operating same ," U.S. Patent 5,757,837. May 1998.
Y. Sun, D. A. Francis, S. A. Biellak, and C. J. Chang-Hasnain, "Semiconductor laser geometry for broad-angle far-field addressing ," U.S. Patent 5,627,852. May 1997.
C. J. Chang-Hasnain, E. C. Vail, and M. S. Wu, "Electrostatically-controlled cantilever apparatus for continuous tuning of the resonance wavelength of a Fabry-Perot cavity ," U.S. Patent 5,629,951. May 1997.
A. E. Willner, C. J. Chang-Hasnain, and J. E. Leight, "One-to-many simultaneous and reconfigurable optical two-dimensional plane interconnections using multiple wavelength, vertical cavity; surface-emitting lasers and wavelength-dependent detector planes ," U.S. Patent 5,546,209. Aug. 1996.
C. J. Chang-Hasnain, Y. Wu, and R. Nabiev, "Single mode laser with a passive antiguide region ," U.S. Patent 5,539,759. July 1996.
C. J. Chang-Hasnain, K. Lau, J. W. Goodman, and A. Varma, "Apparatus and method for routing optical signals through wavelength-coding in a self-routed wavelength addressable network ," U.S. Patent 5,541,756. July 1996.
C. J. Chang-Hasnain, "Monolithic multiple-wavelength laser array ," U.S. Patent 5,029,176. July 1991.
C. J. Chang-Hasnain and E. Kapon, "Cross-coupled quantum-well stripe laser array ," U.S. Patent 4,922,500. May 1990.
Talks or presentations
J. Ferrara and C. Chang-Hasnain, "Low-loss hollow-core waveguide on silicon using high-contrast sub-wavelength grating," presented at Danish-Californian Workshop on Photonic Technologies for Communication and Biophotonics, Berkeley, CA, Jan. 2012.
Ph.D. Theses
T. Sun, "High Contrast Grating for Optical Sensing ," C. Chang-Hasnain, Ed., EECS Department, University of California, Berkeley, Tech. Rep. UCB/EECS-2017-170, Dec. 2017.
K. W. Ng and C. Chang-Hasnain, "III-V Nanostructures on Dissimilar Substrates for Optoelectronic Applications ," EECS Department, University of California, Berkeley, Tech. Rep. UCB/EECS-2014-196, Dec. 2014.