Title:
透過型回折格子、光導波路、ならびに透過型回折格子の使用方法および設計方法
Document Type and Number:
Japanese Patent JP6976516
Kind Code:
B2
Abstract:
A transmission-type diffraction grating provided with a serrated first surface including first inclined surfaces and second inclined surfaces, and a flat second surface. A light beam incident on the first inclined surfaces of the first surface at a predetermined incidence angle is reflected by the second inclined surfaces and emitted from the second surface. The predetermined incidence angle is preferably 20°-80°. The incidence angle and the diffraction angle are preferably equal.
Inventors:
Noboru Ebitsuka
Takayuki Okamoto
Takuya Hosobatake
Yutaka Yamagata
Shinobu Ozaki
Takayuki Okamoto
Takuya Hosobatake
Yutaka Yamagata
Shinobu Ozaki
Application Number:
JP2018509699A
Publication Date:
December 08, 2021
Filing Date:
March 31, 2017
Export Citation:
Assignee:
RIKEN
International Classes:
G02B5/18; G01J3/18
Domestic Patent References:
| JP2005115176A | ||||
| JP2015225217A | ||||
| JP200658844A | ||||
| JP284618A |
Foreign References:
| WO2013024836A1 | ||||
| US20110043919 | ||||
| WO1997017631A1 |
Attorney, Agent or Firm:
Hidewa Patent Office
Shinichi Sanuki
Mayuko Wakuda
Hironobu Yazawa
Takeshi Niwa
Shinichi Sanuki
Mayuko Wakuda
Hironobu Yazawa
Takeshi Niwa