公开(公告)号：US20130299701A1

公开(公告)日：2013-11-14

申请号：US13840956

申请日：2013-03-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong Woo Park ,  Kyung Hyun Park ,  Han-Cheol Ryu ,  Dong-Hun Lee ,  Sang-Pil Han ,  Hyunsung Ko ,  Namje Kim

IPC: H01L31/02 ,  H01L31/0232

CPC classification number: H01L31/02 ,  G02F1/3534 ,  G02F2203/13 ,  H01L31/0232 ,  H01L31/02327 ,  H01L31/105 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/4012 ,  H01S5/4087 ,  H03B2200/0084

Abstract: An optical device may include first and second lasers generating first and second laser beams; and a photo detector detecting the first and second laser beams. The optical detector comprises a substrate, a first impurity layer on the substrate, an absorption layer on the first impurity layer and a second impurity layer on the absorption layer. The absorption layer generates a terahertz by a beating of the first and second laser beams and has a thickness of less than 0.2 μm.

Abstract translation: 光学装置可以包括产生第一和第二激光束的第一和第二激光器; 以及检测第一和第二激光束的光电检测器。 光学检测器包括衬底，衬底上的第一杂质层，第一杂质层上的吸收层和吸收层上的第二杂质层。 吸收层通过第一和第二激光束的跳动产生太赫兹，并且具有小于0.2μm的厚度。