公开(公告)号：US20140299773A1

公开(公告)日：2014-10-09

申请号：US14249046

申请日：2014-04-09

Applicant: RIKEN

Inventor： Kouji NAWATA ,  Hiroaki MINAMIDE ,  Hiromasa ITO ,  Shin'ichiro HAYASHI

IPC: G01J1/04 ,  G01J1/42 ,  G02F1/365

CPC classification number: G01J1/0425 ,  G01J1/42 ,  G01J3/0205 ,  G01J3/18 ,  G01J3/42 ,  G01N21/3581 ,  G02F1/3558 ,  G02F1/365 ,  G02F2001/3548 ,  G02F2203/13

Abstract: The present invention includes a slanted periodically poled device 12 including a light input surface 12a and a light output surface 12b parallel to each other and a terahertz wave input surface 12c orthogonal to the light input surface 12a and the light output surface 12b, a pump beam source 14 which emits pump beam 1 perpendicularly to the light input surface 12a, and a photodetector 16 which detects an up-conversion signal beam A converted from a terahertz wave 3 emitted perpendicularly from the light output surface 12b. The slanted periodically poled device 12 is configured to generate the up-conversion signal beam A in the same direction as and in parallel with the pump beam 1 by quasi phase matching between the terahertz wave 3 perpendicularly incident from the terahertz wave input surface 12c and the pump beam 1.

Abstract translation: 本发明包括一个倾斜的周期极化装置12，它包括彼此平行的光输入表面12a和光输出表面12b以及与光输入表面12a和光输出表面12b正交的太赫波输入表面12c， 源极14，其垂直于光输入表面12a发射泵浦光束1;以及光电检测器16，其检测从从光输出表面12b垂直发射的太赫兹波3转换的上转换信号光束A. 倾斜的周期性极化装置12被配置为通过从太赫兹波输入表面12c垂直入射的太赫兹波3和从太赫兹波输入表面12c的太赫兹波3之间的准相位匹配，在与泵浦光束1相同的方向上产生上变换信号光束A， 泵梁1。