1
Olga Kryliouk, Tim Anderson, Bruce Chai: Method and apparatus for producing group-III nitrides. University of Florida, University of Central Florida, Saliwanchik Lloyd & Saliwanchik, April 17, 2001: US06218280 (81 worldwide citation)

The subject invention pertains to a method and device for producing large area single crystalline III-V nitride compound semiconductor substrates with a composition Al


2
Bruce Chai: Method of enhancing performance of cerium doped lutetium orthosilicate crystals and crystals produced thereby. Crystal Photonics Incorporated, Allen Dyer Doppelt Milbrath & Gilchrist P A, December 19, 2006: US07151261 (13 worldwide citation)

A method for enhancing the light yield of a single crystal of cerium doped lutetium orthosilicate (LSO) in response to irradiation with high energy radiation includes diffusing oxygen into the crystal by heating the crystal for a period of time in an ambient containing oxygen. This process of therma ...


3
Bruce Chai: Method of enhancing performance of cerium doped lutetium yttrium orthosilicate crystals and crystals produced thereby. Crystal Photonics Incorporated, Allen Dyer Doppelt Milbrath & Gilchrist P A, January 23, 2007: US07166845 (8 worldwide citation)

A method for enhancing the light yield of a single crystal of cerium doped lutetium yttrium orthosilicate (LYSO) in response to irradiation with high energy radiation includes diffusing oxygen into the crystal by heating the crystal for a period of time in an ambient containing oxygen. This process ...


4
Bruce Chai, Xiao mei Pan, Bao hui Zhou: Apparatus including scintillation crystal array with different reflector layers and associated methods. CRYSTAL PHOTONICS INCORPORATED, Allen Dyer Doppelt & Gilchrist P A, May 23, 2017: US09658344

A radiation detector, such as for a PET scanner, may include an array of scintillator crystals, with each scintillator crystal having a polished end, a roughened end opposite the polished end, and polished sides extending between the polished end and the roughened end. The detector may also include ...


5
Yi Ting Fei, Shen Jen, Bruce Chai: High-index UV optical materials for immersion lithography. Crystal Photonics Incorporated, Allen Dyer Doppelt Milbrath & Gilchrist P A, July 5, 2011: US07972438

This invention is related to material for use as an ultraviolet (UV) optical element and particularly for use as a 193 nm immersion lens element. The material for use as a UV optical element includes a Lithium Magnesium Aluminate (LMAO) body. The specific compound for this application is the disorde ...


6
Yi Ting Fei, Shen Jen, Bruce Chai: High-index uv optical materials for immersion lithography. Crystal Photonics Incorporated, Allen Dyer Doppelt Milbrath & Gilchrist Pa, March 6, 2008: US20080055715-A1

This invention is related to material for use as an ultraviolet (UV) optical element and particularly for use as a 193 nm immersion lens element. The material for use as a UV optical element includes a Lithium Magnesium Aluminate (LMAO) body. The specific compound for this application is the disorde ...


7
Bruce Chai: Method of enhancing performance of cerium doped lutetium orthosilicate crystals and crystals produced thereby. Henry Estavez, Allen Dyer Doppelt Milbrath & Gilchrist Pa, November 17, 2005: US20050253072-A1

A method for enhancing the light yield of a single crystal of cerium doped lutetium orthosilicate (LSO) in response to irradiation with high energy radiation includes diffusing oxygen into the crystal by heating the crystal for a period of time in an ambient containing oxygen. This process of therma ...