"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

A single-mode all-fiber QEPAS senso

GANG HUANG1,2, YING HE3,* , ZHUO XU2

Affiliation

  1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an 710049, China
  2. National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing 10094, China
  3. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150001, China

Abstract

A quartz-enhanced photoacoustic spectroscopy (QEPAS) system based on common single-mode fiber, which has more stable and flexible configuration, has been developed. A 1.395 μm continuous wave (CW), distributed feedback diode laser was used as the excitation source and the H2O was selected as the target analysis. Quartz tuning fork (QTF) with a resonance frequency of 30.72 kHz was employed as the acoustic transducer. The location of laser between the QTF prongs in the vertical direction has been investigated. After optimizing the modulation depth, a minimum detection limit of 104.6 ppm was achieved..

Keywords

QEPAS, Quartz tuning fork, Fiber, H2O quantification.

Citation

GANG HUANG, YING HE, ZHUO XU, A single-mode all-fiber QEPAS senso, Optoelectronics and Advanced Materials - Rapid Communications, 10, 11-12, November–December 2016, pp.844-846 (2016).

Submitted at: Jan. 5, 2016

Accepted at: Nov. 25, 2016