Title:
光学素子
Document Type and Number:
Japanese Patent JP7381205
Kind Code:
B2
Abstract:
Provided is an optical element including: a main body which is formed of a medium capable of transmitting first light and second light having a wavelength longer than that of the first light, in which the main body includes an incident region into which the first light and the second light are incident, in which a gap which is inclined with respect to the incident region and in which a medium having a refractive index with respect to the first light and the second light lower than that of the main body is disposed is provided inside the main body, and in which a gap width from an interface bordering the main body and the gap is larger than a penetration length of an evanescent wave of the first light at the interface and is smaller than a penetration length of an evanescent wave of the second light at the interface.
Inventors:
Atsushi Nakanishi
Hironori Takahashi
Hironori Takahashi
Application Number:
JP2019019735A
Publication Date:
November 15, 2023
Filing Date:
February 06, 2019
Export Citation:
Assignee:
Hamamatsu Photonics K.K.
International Classes:
G02B5/30
Domestic Patent References:
| JP11505334A |
Foreign References:
| US20130188254 | ||||
| WO2018139486A1 | ||||
| US20190011714 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kenichi Shibayama
Hiromitsu Nakayama
Yuji Wada
Yoshiki Kuroki
Kenichi Shibayama
Hiromitsu Nakayama
Yuji Wada