Miniature double-grating monochromator with Littman configuration for pure rotational Raman LIDAR

Yinchao Zhang; Chen Wang; He Chen; Siying Chen; Pan Guo; Jingxi He; Lifu Wang

doi:10.1117/1.OE.59.2.025101

Miniature double-grating monochromator with Littman configuration for pure rotational Raman LIDAR

Yinchao Zhang, Chen Wang, He Chen^*, Siying Chen, Pan Guo, Jingxi He, Lifu Wang

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Conventional double-grating monochromators used in pure rotational Raman (PRR) temperature LIDAR usually adopt the Littrow configuration to separate backscattered PRR lines. A mirror is added to this configuration, thereby producing the Littman configuration. The dispersion of the modified configuration is greater than thrice that of the Littrow configuration for incident angles larger than 60 deg. A spectroscopy system with a linear dispersion better than 0.9 mm / nm is designed for the 532-nm excitation laser wavelength, and the selected N₂ PRR lines are effectively separated.

Original language	English
Article number	025101
Journal	Optical Engineering
Volume	59
Issue number	2
DOIs	https://doi.org/10.1117/1.OE.59.2.025101
Publication status	Published - 1 Feb 2020

Keywords

LIDAR
monochromator
optical design
pure rotational Raman
temperature

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10.1117/1.OE.59.2.025101

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title = "Miniature double-grating monochromator with Littman configuration for pure rotational Raman LIDAR",

abstract = "Conventional double-grating monochromators used in pure rotational Raman (PRR) temperature LIDAR usually adopt the Littrow configuration to separate backscattered PRR lines. A mirror is added to this configuration, thereby producing the Littman configuration. The dispersion of the modified configuration is greater than thrice that of the Littrow configuration for incident angles larger than 60 deg. A spectroscopy system with a linear dispersion better than 0.9 mm / nm is designed for the 532-nm excitation laser wavelength, and the selected N2 PRR lines are effectively separated.",

keywords = "LIDAR, monochromator, optical design, pure rotational Raman, temperature",

author = "Yinchao Zhang and Chen Wang and He Chen and Siying Chen and Pan Guo and Jingxi He and Lifu Wang",

note = "Publisher Copyright: {\textcopyright} 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).",

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T1 - Miniature double-grating monochromator with Littman configuration for pure rotational Raman LIDAR

AU - Zhang, Yinchao

AU - Wang, Chen

AU - Chen, He

AU - Chen, Siying

AU - Guo, Pan

AU - He, Jingxi

AU - Wang, Lifu

PY - 2020/2/1

Y1 - 2020/2/1

N2 - Conventional double-grating monochromators used in pure rotational Raman (PRR) temperature LIDAR usually adopt the Littrow configuration to separate backscattered PRR lines. A mirror is added to this configuration, thereby producing the Littman configuration. The dispersion of the modified configuration is greater than thrice that of the Littrow configuration for incident angles larger than 60 deg. A spectroscopy system with a linear dispersion better than 0.9 mm / nm is designed for the 532-nm excitation laser wavelength, and the selected N2 PRR lines are effectively separated.

AB - Conventional double-grating monochromators used in pure rotational Raman (PRR) temperature LIDAR usually adopt the Littrow configuration to separate backscattered PRR lines. A mirror is added to this configuration, thereby producing the Littman configuration. The dispersion of the modified configuration is greater than thrice that of the Littrow configuration for incident angles larger than 60 deg. A spectroscopy system with a linear dispersion better than 0.9 mm / nm is designed for the 532-nm excitation laser wavelength, and the selected N2 PRR lines are effectively separated.

KW - LIDAR

KW - monochromator

KW - optical design

KW - pure rotational Raman

KW - temperature

UR - http://www.scopus.com/inward/record.url?scp=85081175884&partnerID=8YFLogxK

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DO - 10.1117/1.OE.59.2.025101

M3 - Article

AN - SCOPUS:85081175884

SN - 0091-3286

VL - 59

JO - Optical Engineering

JF - Optical Engineering

IS - 2

M1 - 025101

ER -

Miniature double-grating monochromator with Littman configuration for pure rotational Raman LIDAR

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Keywords

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