28 February 2017 Simulation of the fixed optical path difference of near infrared wind imaging interferometer
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Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 102564F (2017) https://doi.org/10.1117/12.2258572
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China
Abstract
As an important part of the earth, atmosphere plays a vital role in filtering the solar radiation, adjusting the temperature and organizing the water circulation and keeping human survival. The passive atmospheric wind measurement is based on the imaging interferometer technology and Doppler effect of electromagnetic wave. By using the wind imaging interferometer to get four interferograms of airglow emission lines, the atmospheric wind velocity, temperature, pressure and emission rate can be derived. Exploring the multi-functional and integrated innovation of detecting wind temperature, wind velocity and trace gas has become a research focus in the field. In the present paper, the impact factors of the fixed optical path difference(OPD) of near infrared wind imaging interferometer(NIWII) are analyzed and the optimum value of the fixed optical path difference is simulated, yielding the optimal results of the fixed optical path difference is 20 cm in near infrared wave band (the O2(a1Δg) airglow emission at 1.27 microns). This study aims at providing theoretical basis and technical support for the detection of stratosphere near infrared wind field and giving guidance for the design and development of near infrared wind imaging interferometer.
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Piao Rong, Chunmin Zhang, Tingyu Yan, Dongdong Liu, Yanfen Li, "Simulation of the fixed optical path difference of near infrared wind imaging interferometer", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102564F (28 February 2017); doi: 10.1117/12.2258572; https://doi.org/10.1117/12.2258572
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