Dr. Hong Xu Profile

Dr. Hong Xu

at Tianjin Univ

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Proceedings Article | 15 November 2007 Paper

Research of detection range of LWIR dispersive imaging spectrometer

Hong Xu, Xiangjun Wang

Proceedings Volume 6786, 678655 (2007) https://doi.org/10.1117/12.750576

KEYWORDS: Spectroscopy, Long wavelength infrared, Infrared spectroscopy, Transmittance, Sensors, Remote sensing, Radiation effects, Atmospheric modeling, Atmospheric sensing, Objectives

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Among various types of long-wave infrared spectrometers, dispersive spectrometer has the simplist structure and has shown good service behavior in all kinds of imaging spectroscopy applications. For the technology of infrared remote imaging spectroscopy, an excellent designed imaging spectrometer is the key factor. Of all the designing factors, the tradeoff between the detection performance and the structure size is always the main topic. In this paper, according to the performance parameters of the used infrared sensor, characteristic of energy transmission of dispersive spectrometer, characteristic of target radiation and the effect of atmospheric transmission, a comprehensive research is done to construct a perfect receiving radiation model of LWIR dispersive spectrometer, providing theoretical foundations for accurately determining the relationship between instrumental structure parameters and the detection range. A designing model with an uncooled microbolometer as its detector is calculateded to analyse its potential in the application of long-wave remote imaging spectroscopy.

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