Longwave infrared (LWIR) coded aperture dispersive spectrometer

被引：23

作者：

Fernandez, C.

Guenther, B. D.

Gehm, M. E.

Brady, D. J.

Sullivan, M. E.

机构：

[1] Duke Univ, Fitzpatrick Inst Photon, Durham, NC 27708 USA

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

[3] Centice Corp, Morrisville, NC 27560 USA

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 09期

关键词：

D O I：

10.1364/OE.15.005742

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source information to the detector plane. Post-processing techniques on the data provide spectral estimates of the source. Comparative experimental results between a slit and coded aperture for emission spectroscopy from a CO2 laser are demonstrated. (c) 2007 Optical Society of America

引用

页码：5742 / 5753

页数：12

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