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Title: Sensitive detection of formaldehyde using an interband cascade laser near 3.6 μm

Abstract

Here, we report the development of a formaldehyde (H 2CO) trace gas sensor using a continuous wave (CW), thermoelectrically-cooled (TEC), distributed-feedback interband cascade laser (DFB-ICL) at 3.6 μm. Wavelength modulation spectroscopy was used to detect the second harmonic spectra of a strong H 2CO absorption feature centered at 2778.5 cm -1 (3599 nm) in its ν 1 fundamental vibrational band. A compact and novel multipass cell (7.6-cm physical length and 32-ml sampling volume) was implemented to achieve an effective optical path length of 3.75 m. A minimum detection limit of 6 parts per billion (ppb) at an optimum gas pressure of 200 Torr was achieved with a 1-s data acquisition time. An Allan-Werle deviation analysis was performed to investigate the long-term stability of the sensor system and a 1.5 ppb minimum detectable concentration could be achieved by averaging up to 140 s. Absorption interference eeffects from atmospheric H 2O (2%) and CH 4(5 ppm) were also analyzed in this work and proved to be insignificant for the current sensor configuration.

Authors:
 [1];  [2];  [2]
+ Show Author Affiliations
  1. Chinese Univ. of Hong Kong (China). Dept. of Mechanical and Automation Engineering
  2. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering
Publication Date:
Research Org.:
Rice Univ., Houston, TX (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); National Science Foundation (NSF); French National Research Agency (ANR); Robert Welch Foundation; Direct Grant for Research (China); Chinese Univ. of Hong Kong (China)
OSTI Identifier:
1435803
Report Number(s):
DOE-MAXION-00538-15
Journal ID: ISSN 0925-4005; PII: S0925400515301350
Grant/Contract Number:  
AR0000538; C001-4055041; RNE-p2-15; C001-8115052; C-0586
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Sensors and Actuators. B, Chemical
Additional Journal Information:
Journal Volume: 221; Journal Issue: C; Journal ID: ISSN 0925-4005
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; 47 OTHER INSTRUMENTATION; Formaldehyde; Absorption spectroscopy; Interband cascade laser; Trace gas detection

Citation Formats

Ren, Wei, Luo, Longqiang, and Tittel, Frank K. Sensitive detection of formaldehyde using an interband cascade laser near 3.6 μm. United States: N. p., 2015. Web. doi:10.1016/j.snb.2015.07.078.
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Ren, Wei, Luo, Longqiang, & Tittel, Frank K. Sensitive detection of formaldehyde using an interband cascade laser near 3.6 μm. United States. https://doi.org/10.1016/j.snb.2015.07.078
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Ren, Wei, Luo, Longqiang, and Tittel, Frank K. Thu . "Sensitive detection of formaldehyde using an interband cascade laser near 3.6 μm". United States. https://doi.org/10.1016/j.snb.2015.07.078. https://www.osti.gov/servlets/purl/1435803.
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@article{osti_1435803,
title = {Sensitive detection of formaldehyde using an interband cascade laser near 3.6 μm},
author = {Ren, Wei and Luo, Longqiang and Tittel, Frank K.},
abstractNote = {Here, we report the development of a formaldehyde (H2CO) trace gas sensor using a continuous wave (CW), thermoelectrically-cooled (TEC), distributed-feedback interband cascade laser (DFB-ICL) at 3.6 μm. Wavelength modulation spectroscopy was used to detect the second harmonic spectra of a strong H2CO absorption feature centered at 2778.5 cm-1 (3599 nm) in its ν1 fundamental vibrational band. A compact and novel multipass cell (7.6-cm physical length and 32-ml sampling volume) was implemented to achieve an effective optical path length of 3.75 m. A minimum detection limit of 6 parts per billion (ppb) at an optimum gas pressure of 200 Torr was achieved with a 1-s data acquisition time. An Allan-Werle deviation analysis was performed to investigate the long-term stability of the sensor system and a 1.5 ppb minimum detectable concentration could be achieved by averaging up to 140 s. Absorption interference eeffects from atmospheric H2O (2%) and CH4(5 ppm) were also analyzed in this work and proved to be insignificant for the current sensor configuration.},
doi = {10.1016/j.snb.2015.07.078},
url = {https://www.osti.gov/biblio/1435803}, journal = {Sensors and Actuators. B, Chemical},
issn = {0925-4005},
number = C,
volume = 221,
place = {United States},
year = {2015},
month = {12}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.snb.2015.07.078
Copyright Statement
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Cited by: 22 works
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