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物理学报. 2004, 53(3): 756-761.
doi: 10.7498/aps.53.756.
谐衍射双波段红外超光谱探测系统研究
- 收稿日期: 2003-05-13
- 修回日期: 2003-06-23
- 刊出日期: 2004-03-15
English Abstract
Study on hyperspectral detection system with the harmonic diffractive element in infrared dual-band
- Received Date:
13 May 2003
- Accepted Date:
23 June 2003
- Published Online:
15 March 2004
Abstract: In this paper, the application of harmonic diffractive element（HDE） in the infrared hyperspectral detection system is investigated based on the special large dispersion capability of HDE and window character of infrared bands. The fundamental principle of the new infrared hyperspectral imaging is described, and a design sample is presented. It is shown that the resolution is improved and the optical power received is enlarged. The rectification of the ray aberrations in both band has been simultaneously accomplished. Wave front aberrations are less than 1/4 wavelength,and the modulation transfer function of the dual-band in every zoom focus location approaches or attains the diffraction limit of 20 cycles/mm.
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