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Title: Ppb-level formaldehyde detection using a CW room-temperature interband cascade laser and a miniature dense pattern multipass gas cell

Abstract

A ppb-level formaldehyde (H2CO) sensor was developed using a thermoelectrically cooled (TEC), continuous-wave (CW) room temperature interband cascade laser (ICL) emitting at 3.59 μm and a miniature dense pattern multipass gas cell with >50 m optical path length. Performance of the sensor was investigated with two measurement schemes: direct absorption (DAS) and wavelength modulation spectroscopy (WMS). With an integration time of less than 1.5 second, a detection limit of ~3 ppbv for H2CO measurement with precision of 1.25 ppbv for DAS and 0.58 ppbv for WMS, respectively, was achieved without zero air based background subtraction. An Allan-Werle variance analysis indicated that the precisions can be further improved to 0.26 ppbv @ 300s for DAS and 69 pptv @ 90 s for WMS, respectively. Finally, a side-by-side comparison between two measurement schemes is also discussed in detail.

Authors:
 [1];  [2];  [2];  [3];  [2]
  1. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering; Shanxi Univ., Taiyuan (China). State Key Lab. of Quantum Optics and Quantum Optics Devices, Inst. of Laser Spectroscopy
  2. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering
  3. Sentinel Photonics, Monmouth Junction, NJ (United States)
Publication Date:
Research Org.:
Rice Univ., Houston, TX (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); National Science Foundation (NSF); National Natural Science Foundation of China (NNSFC); Robert Welch Foundation
OSTI Identifier:
1435053
Report Number(s):
DOE-MAXION-00538-10
Journal ID: ISSN 1094-4087; OPEXFF
Grant/Contract Number:  
AR0000538; 61275213; 61108030; C-0586; IIP-1230427
Resource Type:
Accepted Manuscript
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 23; Journal Issue: 15; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Laser sensors; Spectroscopy; infrared; Semiconductor lasers; quantum cascade

Citation Formats

Dong, Lei, Yu, Yajun, Li, Chunguang, So, Stephen, and Tittel, Frank K. Ppb-level formaldehyde detection using a CW room-temperature interband cascade laser and a miniature dense pattern multipass gas cell. United States: N. p., 2015. Web. doi:10.1364/OE.23.019821.
Dong, Lei, Yu, Yajun, Li, Chunguang, So, Stephen, & Tittel, Frank K. Ppb-level formaldehyde detection using a CW room-temperature interband cascade laser and a miniature dense pattern multipass gas cell. United States. doi:10.1364/OE.23.019821.
Dong, Lei, Yu, Yajun, Li, Chunguang, So, Stephen, and Tittel, Frank K. Mon . "Ppb-level formaldehyde detection using a CW room-temperature interband cascade laser and a miniature dense pattern multipass gas cell". United States. doi:10.1364/OE.23.019821. https://www.osti.gov/servlets/purl/1435053.
@article{osti_1435053,
title = {Ppb-level formaldehyde detection using a CW room-temperature interband cascade laser and a miniature dense pattern multipass gas cell},
author = {Dong, Lei and Yu, Yajun and Li, Chunguang and So, Stephen and Tittel, Frank K.},
abstractNote = {A ppb-level formaldehyde (H2CO) sensor was developed using a thermoelectrically cooled (TEC), continuous-wave (CW) room temperature interband cascade laser (ICL) emitting at 3.59 μm and a miniature dense pattern multipass gas cell with >50 m optical path length. Performance of the sensor was investigated with two measurement schemes: direct absorption (DAS) and wavelength modulation spectroscopy (WMS). With an integration time of less than 1.5 second, a detection limit of ~3 ppbv for H2CO measurement with precision of 1.25 ppbv for DAS and 0.58 ppbv for WMS, respectively, was achieved without zero air based background subtraction. An Allan-Werle variance analysis indicated that the precisions can be further improved to 0.26 ppbv @ 300s for DAS and 69 pptv @ 90 s for WMS, respectively. Finally, a side-by-side comparison between two measurement schemes is also discussed in detail.},
doi = {10.1364/OE.23.019821},
journal = {Optics Express},
number = 15,
volume = 23,
place = {United States},
year = {2015},
month = {7}
}

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