中国物理B ›› 2020, Vol. 29 ›› Issue (10): 104204-.doi: 10.1088/1674-1056/ab9de8

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Ya-Fei Zhang(张亚飞)1,2, Yu-Tao Feng(冯玉涛)1,†(), Di Fu(傅頔)1, Peng-Chong Wang(王鹏冲)1, Jian Sun(孙剑)1, Qing-Lan Bai(白清兰)1   

  • 收稿日期:2020-01-07 修回日期:2020-04-30 接受日期:2020-06-18 出版日期:2020-10-05 发布日期:2020-10-05
  • 通讯作者: Yu-Tao Feng(冯玉涛)

Dependence of interferogram phase on incident wavenumber and phase stability of Doppler asymmetric spatial heterodyne spectroscopy

Ya-Fei Zhang(张亚飞)1,2, Yu-Tao Feng(冯玉涛)1,†, Di Fu(傅頔)1, Peng-Chong Wang(王鹏冲)1, Jian Sun(孙剑)1, and Qing-Lan Bai(白清兰)1   

  1. 1 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-01-07 Revised:2020-04-30 Accepted:2020-06-18 Online:2020-10-05 Published:2020-10-05
  • Contact: Corresponding author. E-mail: fytciom@126.com
  • About author:
    †Corresponding author. E-mail: fytciom@126.com
    * Project supported by the National Natural Science Foundation of China (Grant No. 41005019), the Fund from the Chinese Academy of Scieneces for West Yong Scientists (Grant No. XAB 2016A07), and the Natural Science Basic Research Program of Shaanxi Province, China (Grant No. 2019JQ-931).

Abstract:

Instrument drifts introduce additional phase errors into atmospheric wind measurement of Doppler asymmetric spatial heterodyne spectroscopy (DASH). Aiming at the phase sensitivity of DASH to instrument drifts, in this paper we calculate the optical path difference (OPD) and present an accurate formula of DASH interferogram. By controlling variables in computational ray-tracing simulations and laboratory experiments, it is indicated that initial phase is directly determined by incident wavenumber, OPD offset and field of view (FOV). Accordingly, it is indicated that retrieved phase of DASH is sensitive to slight structural change caused by instrument drift, which provides the proof of necessary-to-track and -correct phase errors from instrument drifts.

Key words: atmospheric wind measurement, Doppler asymmetric spatial heterodyne spectroscopy, optical path difference, interference phase

中图分类号:  (Interference)

  • 42.25.Hz
07.60.Ly (Interferometers) 42.68.-w (Atmospheric and ocean optics)