Pollutant emission monitoring using QC laser-based mid-IR sensors

D. M. Sonnenfroh; M. G. Allen; W. T. Rawlins; Claire F. Gmachl; F. Capasso; A. Hutchinson; D. Sivco; A. Y. Cho

doi:10.1117/12.417364

Pollutant emission monitoring using QC laser-based mid-IR sensors

D. M. Sonnenfroh, M. G. Allen, W. T. Rawlins, Claire F. Gmachl, F. Capasso, A. Hutchinson, D. Sivco, A. Y. Cho

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Recent advances in mid-IR semiconductor laser technology based on intersubband transitions in InGaAs quantum wells promise a dramatic impact on tunable diode laser-based sensors for trace gases. This paper reports recent progress toward this realization of room-temperature laser-based sensors for combustion-generated pollutants such as NO_x and SO_x. Laboratory measurements of SO₂ at 8.6 μm are presented with detection limits on the order of 1 ppm. Extensions of these approaches for higher sensitivity measurements in exhaust gas conditions are described, as well as measurements of SO₃.

Original language	English (US)
Pages (from-to)	86-97
Number of pages	12
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4199
DOIs	https://doi.org/10.1117/12.417364
State	Published - 2001

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Keywords

Combustion sensor
Diode laser
Pollutant monitoring
Quantum cascade laser

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10.1117/12.417364

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title = "Pollutant emission monitoring using QC laser-based mid-IR sensors",

abstract = "Recent advances in mid-IR semiconductor laser technology based on intersubband transitions in InGaAs quantum wells promise a dramatic impact on tunable diode laser-based sensors for trace gases. This paper reports recent progress toward this realization of room-temperature laser-based sensors for combustion-generated pollutants such as NOx and SOx. Laboratory measurements of SO2 at 8.6 μm are presented with detection limits on the order of 1 ppm. Extensions of these approaches for higher sensitivity measurements in exhaust gas conditions are described, as well as measurements of SO3.",

keywords = "Combustion sensor, Diode laser, Pollutant monitoring, Quantum cascade laser",

author = "Sonnenfroh, {D. M.} and Allen, {M. G.} and Rawlins, {W. T.} and Gmachl, {Claire F.} and F. Capasso and A. Hutchinson and D. Sivco and Cho, {A. Y.}",

year = "2001",

doi = "10.1117/12.417364",

language = "English (US)",

volume = "4199",

pages = "86--97",

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T1 - Pollutant emission monitoring using QC laser-based mid-IR sensors

AU - Sonnenfroh, D. M.

AU - Allen, M. G.

AU - Rawlins, W. T.

AU - Gmachl, Claire F.

AU - Capasso, F.

AU - Hutchinson, A.

AU - Sivco, D.

AU - Cho, A. Y.

PY - 2001

Y1 - 2001

N2 - Recent advances in mid-IR semiconductor laser technology based on intersubband transitions in InGaAs quantum wells promise a dramatic impact on tunable diode laser-based sensors for trace gases. This paper reports recent progress toward this realization of room-temperature laser-based sensors for combustion-generated pollutants such as NOx and SOx. Laboratory measurements of SO2 at 8.6 μm are presented with detection limits on the order of 1 ppm. Extensions of these approaches for higher sensitivity measurements in exhaust gas conditions are described, as well as measurements of SO3.

AB - Recent advances in mid-IR semiconductor laser technology based on intersubband transitions in InGaAs quantum wells promise a dramatic impact on tunable diode laser-based sensors for trace gases. This paper reports recent progress toward this realization of room-temperature laser-based sensors for combustion-generated pollutants such as NOx and SOx. Laboratory measurements of SO2 at 8.6 μm are presented with detection limits on the order of 1 ppm. Extensions of these approaches for higher sensitivity measurements in exhaust gas conditions are described, as well as measurements of SO3.

KW - Combustion sensor

KW - Diode laser

KW - Pollutant monitoring

KW - Quantum cascade laser

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

ER -

Pollutant emission monitoring using QC laser-based mid-IR sensors

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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