Publications
] , "2.5 λ microcavity InGaN light-emitting diodes fabricated by a selective dry-etch thinning process", Applied Physics Letters, vol. 91, no. 6: AIP, pp. 061120, 2007.
, "Demonstration of distributed Bragg Reflectors for deep ultraviolet applications", Japanese Journal of Applied Physics, vol. 46, no. 8L: IOP Publishing, pp. L767, 2007.
, "Directional emission control and increased light extraction in GaN photonic crystal light emitting diodes", Applied physics letters, vol. 93, no. 10: AIP, pp. 103502, 2008.
, "Microcavity InGaN light emitting diodes with a single Fabry-Pérot mode", physica status solidi (c), vol. 5, no. 6: Wiley Online Library, pp. 2306–2308, 2008.
, "Submicron-thick microcavity InGaN light emitting diodes", Light-Emitting Diodes: Research, Manufacturing, and Applications XII, vol. 6910: International Society for Optics and Photonics, pp. 69100R, 2008.
, "Electroluminescent measurement of the internal quantum efficiency of light emitting diodes", Applied Physics Letters, vol. 94, no. 18: AIP, pp. 181102, 2009.
, "GaN-based embedded 2D photonic crystal LEDs: Numerical optimization and device characterization", physica status solidi (c), vol. 6, no. S2: WILEY-VCH Verlag, 2009.
, "Growth of embedded photonic crystals for GaN-based optoelectronic devices", Journal of Applied Physics, vol. 106, no. 2: AIP, pp. 024309, 2009.
, "High extraction efficiency GaN-based photonic-crystal light-emitting diodes: Comparison of extraction lengths between surface and embedded photonic crystals", Applied physics express, vol. 3, no. 3: IOP Publishing, pp. 032103, 2010.
, "High extraction efficiency light-emitting diodes based on embedded air-gap photonic-crystals", Applied physics letters, vol. 96, no. 3: AIP, pp. 031108, 2010.
, High-Efficiency Nitride-Base Photonic Crystal Light Sources: The Regents Of The University Of California, 2010.
, "Interplay of cavity thickness and metal absorption in thin-film InGaN photonic crystal light-emitting diodes", Applied Physics Letters, vol. 97, no. 6: AIP, pp. 061118, 2010.
, "Measurement of extraction and absorption parameters in GaN-based photonic-crystal light-emitting diodes", Journal of applied physics, vol. 107, no. 5: AIP, pp. 053114, 2010.
, "Directionality control through selective excitation of low-order guided modes in thin-film InGaN photonic crystal light-emitting diodes", Applied physics letters, vol. 98, no. 8: AIP, pp. 081104, 2011.
, "Impact of the vertical layer structure on the emission directionality of thin-film InGaN photonic crystal LEDs", CLEO: Science and Innovations: Optical Society of America, pp. CMA3, 2011.
, "Polarized light extraction in m-plane GaN light-emitting diodes by embedded photonic-crystals", Applied Physics Letters, vol. 98, no. 25: AIP, pp. 251112, 2011.
, "Chip shaping for light extraction enhancement of bulk c-plane light-emitting diodes", Applied Physics Express, vol. 5, no. 3: IOP Publishing, pp. 032104, 2012.
, "Double embedded photonic crystals for extraction of guided light in light-emitting diodes", Applied Physics Letters, vol. 100, no. 17: AIP, pp. 171105, 2012.
, "High-brightness polarized light-emitting diodes", Light: Science & Applications, vol. 1, no. 8: Nature Publishing Group, pp. e22, 2012.
, "Direct measurement of Auger electrons emitted from a semiconductor light-emitting diode under electrical injection: identification of the dominant mechanism for efficiency droop", Physical review letters, vol. 110, no. 17: American Physical Society, pp. 177406, 2013.
, "Auger effect identified as main cause of efficiency droop in leds", SPIE Newsroom, pp. 1–4, 2014.
, "Determination of the first satellite valley energy in the conduction band of wurtzite GaN by near-band-gap photoemission spectroscopy", Physical Review B, vol. 89, no. 23: APS, pp. 235124, 2014.
, "Identification of Auger effect as the dominant mechanism for efficiency droop of LEDs", Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII, vol. 9003: International Society for Optics and Photonics, pp. 90030Z, 2014.
, "Origin of electrons emitted into vacuum from InGaN light emitting diodes", Applied Physics Letters, vol. 105, no. 5: AIP Publishing, pp. 052103, 2014.
, "The efficiency challenge of nitride light-emitting diodes for lighting", physica status solidi (a), vol. 212, no. 5, pp. 899–913, 2015.