28 February 2017 A compact LWIR imaging spectrometer with a variable gap Fabry-Perot interferometer
Author Affiliations +
Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 102562W (2017) https://doi.org/10.1117/12.2257646
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China
Abstract
Fourier transform spectroscopy is a widely employed method for obtaining spectra, with applications ranging from the desktop to remote sensing. The long wave infrared (LWIR) interferometric spectral imaging system is always with huge volume and large weight. In order to miniaturize and light the instrument, a new method of LWIR spectral imaging system based on a variable gap Fabry-Perot (FP) interferometer is researched. With the system working principle analyzed, theoretically, it is researched that how to make certain the primary parameter, such as, the reflectivity of the two interferometric cavity surfaces, field of view (FOV) and f-number of the imaging lens. A prototype is developed and a good experimental result of CO2 laser is obtained. The research shows that besides high throughput and high spectral resolution, the advantage of miniaturization is also simultaneously achieved in this method.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fang Zhang, Fang Zhang, Jiaobo Gao, Jiaobo Gao, Nan Wang, Nan Wang, Yujie Zhao, Yujie Zhao, Lei Zhang, Lei Zhang, Shan Gao, Shan Gao, "A compact LWIR imaging spectrometer with a variable gap Fabry-Perot interferometer", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102562W (28 February 2017); doi: 10.1117/12.2257646; https://doi.org/10.1117/12.2257646
PROCEEDINGS
8 PAGES


SHARE
Back to Top