Literature DB >> 26125335

Parts-per-trillion-level detection of nitrogen dioxide by cantilever-enhanced photo-acoustic spectroscopy.

Jari Peltola, Tuomas Hieta, Markku Vainio.   

Abstract

We present a simple and highly sensitive cantilever-enhanced photo-acoustic sensor for detection of nitrogen dioxide. A noise equivalent detection limit of 50 parts-per-trillion in 1 s is demonstrated. The limit was reached with an average optical power of 4.7 W using a continuous-wave laser at 532 nm. The achieved normalized noise equivalent absorption coefficient was 2.6×10(-10)  W cm(-1) Hz(-1/2).

Entities:  

Year:  2015        PMID： 26125335     DOI： 10.1364/OL.40.002933

Source DB:  PubMed          Journal:  Opt Lett        ISSN： 0146-9592            Impact factor:   3.776


  3 in total

Review 1.  Photoacoustic-Based Gas Sensing: A Review.

Authors:  Stefan Palzer
Journal:  Sensors (Basel)       Date:  2020-05-11       Impact factor: 3.576

2.  Compact quartz-enhanced photoacoustic sensor for ppb-level ambient NO2 detection by use of a high-power laser diode and a grooved tuning fork.

Authors:  Shangzhi Li; Juncheng Lu; Zhijin Shang; Xiangbao Zeng; Yupeng Yuan; Hongpeng Wu; Yufeng Pan; Angelo Sampaolo; Pietro Patimisco; Vincenzo Spagnolo; Lei Dong
Journal:  Photoacoustics       Date:  2021-12-16

3.  Sub-parts-per-trillion level sensitivity in trace gas detection by cantilever-enhanced photo-acoustic spectroscopy.

Authors:  Teemu Tomberg; Markku Vainio; Tuomas Hieta; Lauri Halonen
Journal:  Sci Rep       Date:  2018-01-30       Impact factor: 4.379
  3 in total

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