Raman spectroscopic detection using a two-dimensional spatial heterodyne spectrometer

Guangxiao Hu; Wei Xiong; Hailiang Shi; Zhiwei Li; Jing Shen; Xuejing Fang

doi:10.1117/1.OE.54.11.114101

3 November 2015 Raman spectroscopic detection using a two-dimensional spatial heterodyne spectrometer

Guangxiao Hu, Wei Xiong, Hailiang Shi, Zhiwei Li, Jing Shen, Xuejing Fang

Author Affiliations +

Optical Engineering, Vol. 54, Issue 11, 114101 (November 2015). https://doi.org/10.1117/1.OE.54.11.114101

Abstract

Spatial heterodyne Raman spectroscopy (SHRS) is a type of method for the detection of Raman spectra and can achieve a very high spectral resolution. SHRS has no moving parts and can be built with rugged, compact packages, making it extremely suitable for planetary exploration. However, if a high spectral resolution is needed, a traditional one-dimensional spatial heterodyne spectrometer cannot achieve a broad bandpass because it is limited by the number of pixels of the detector. In order to solve this, two-dimensional (2-D) SHRS can be used to broaden the bandpass. A breadboard of 2-D SHRS has been designed and built, and some artificial and natural targets have been tested to learn about the detection ability of 2-D SHRS. The results show that 2-D SHRS can be used to detect Raman signals scattered from liquid and solid targets. When the Raman scattered signal is strong, it can even detect targets in containers. The detection of anti-Stokes Raman shift for sulfur and carbon tetrachloride has also been tried, and the results show that 2-D SHRS has the ability to detect anti-Stokes Raman shift below 500 cm⁻¹. The research may have a general implication in chemical analysis and planetary exploration.

Citation Download Citation

Guangxiao Hu, Wei Xiong, Hailiang Shi, Zhiwei Li, Jing Shen, and Xuejing Fang "Raman spectroscopic detection using a two-dimensional spatial heterodyne spectrometer," Optical Engineering 54(11), 114101 (3 November 2015). https://doi.org/10.1117/1.OE.54.11.114101

Published: 3 November 2015

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE