| 发明名称 |
SWITCHABLE DIRECTIONAL INFRARED RADIATION SOURCE |
| 摘要 |
A source of directional radiation in an IR band comprises at least a substrate and an external layer comprising controllable cells made of a metal insulator transition material that changes phase depending on its temperature relative to a temperature at which the corresponding wavelength is located in the IR band and that possesses a crystalline phase and an amorphous phase, and control means for controlling the phase change of the cells so as to form in this external layer a diffraction grating when the cells are controlled to the amorphous phase, in order thus to obtain a switchable directional source. |
| 申请公布号 |
US2015293428(A1) |
申请公布日期 |
2015.10.15 |
| 申请号 |
US201314648231 |
申请日期 |
2013.11.27 |
| 申请人 |
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ;INSTITUT D'OPTIQUE GRADUATE SCHOOL |
发明人 |
Ben-Abdallah Philippe;Coutrot Anne-Lise;Besbes Mondher;Benisty Henri |
| 分类号 |
G02F1/29 |
主分类号 |
G02F1/29 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A source of directional radiation in an IR band, comprising at least a substrate and an external layer comprising controllable cells made of a metal insulator transition material that changes phase depending on its temperature relative to a temperature Tc at which the corresponding wavelength is located in the IR band and that possesses a crystalline phase and an amorphous phase, and control means for controlling the phase change of the cells so as to form in said external layer a diffraction grating when the cells are controlled to the amorphous phase, in order to obtain a switchable directional source. |
| 地址 |
Paris FR |
