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shuji nakamura
research
Roy Chung
Roy Chung
Roy's current research focuses on MOCVD growth of GaN and related alloys (InGaN, AlGaN, and AlInN) for the device applications. His main research interests are the growth of AlInN for optoelectronics and the development of high power and high efficiency green LEDs using non- and semi-polar bulk GaN substrates.
Dan Haeger
Dan Haeger
Dan is currently working on near UV AlInGaN laser diodes and modulators by MOCVD growth on non-polar GaN substrates.  Some of the many applications include biological/chemical detection as well as water purification and communication.
Chia-Yen Huang
Chia-Yen Huang
Chia-Yen is interested in optical simulation and design of InGaN/GaN based green laser diodes on semipolar planes. He is also focused on optimizion of processing and growth technologies for longer wavelength laser operation.
Siddha Pimputkar
Siddha Pimptukar
Siddha's research focuses on improving bulk single crystal growth of Gallium Nitride (GaN) using the ammonothermal method. This method, which is similar to the hydrothermal method used to grow quartz and ZnO, entails filling in a vessel GaN source and seed material along with ammonia. Upon heating the vessel to ~600C and 2,000 - 4,000atm pressure, the ammonia becomes supercritical and can transport GaN from the source to the seed resulting in the growth of a single crystal. His research pays particular attention to understanding the growth environment and improving both growth rate and quality of the resulting crystals.
Yuji Zhao
Yuji Zhao
Yuji joined the group in 2008. His current research focuses on developing high power and high efficiency blue-green light emitting diodes by MOCVD growth on semipolar GaN bulk substrates. He is also working on high light extraction device design, strain induced optical polarization study and carrier transport on
high performance AlInGaN optoelectronic devices.

 

 

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