Laser absorption spectroscopy based on a broadband external cavity quantum cascade laser

Juan Sun; Ningwu Liu; Hao Deng; Junya Ding; Jiancha Sun; Lei Zhang; Jingsong Li

doi:10.1117/12.2266830

10 February 2017 Laser absorption spectroscopy based on a broadband external cavity quantum cascade laser

Juan Sun, Ningwu Liu, Hao Deng, Junya Ding, Jiancha Sun, Lei Zhang, Jingsong Li

Proceedings Volume 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016); 102501X (2017) https://doi.org/10.1117/12.2266830
Event: Fourth International Conference on Optical and Photonics Engineering, 2016, Chengdu, China

Abstract

A tunable diode laser absorption spectroscopy (TDLAS) system based on a broad band external cavity quantum cascade laser (ECQCL) near 7.78 μm was used to study volatile organic compounds (VOCs) measurements. Instead of using a standard infrared mercury cadmium telluride (MCT) detector, a quartz crystal tuning fork (QCTF) as a light detector was successfully used for laser signal detection. Fast Fourier transform (FFT) was used to extract vibration intensity information of QCTF. Primary results indicate that the new developed system has a good reproducibility, and a good agreement was obtained by comparing with data taken from standard spectroscopic database.

Citation Download Citation

Juan Sun, Ningwu Liu, Hao Deng, Junya Ding, Jiancha Sun, Lei Zhang, and Jingsong Li "Laser absorption spectroscopy based on a broadband external cavity quantum cascade laser", Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102501X (10 February 2017); https://doi.org/10.1117/12.2266830

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

Includes PDF, HTML & Video, when available