O'Brien Jeremy Lloyd
Occhi Lorenzo
Odnoblyudov Maxim A.
Ogawa Kensuke
Oh Hye-jeong
Ohno Takahisa
Ohno Yuzo
Ohtani Keita
Oikawa Ryuichi
Omori Tsunehiko
Ono Takeo
Optoelectronics Technology Research Laboratory
OptoGaN Oy
Osinski Marek
Ott John A
Ou Chen
Ouyang Jianyong
Ozturk Mehmet C.