Longwave infrared (LWIR) coded aperture dispersive spectrometer

C. Fernandez; B. D. Guenther; M. E. Gehm; D. J. Brady; M. E. Sullivan

doi:10.1364/OE.15.005742

Longwave infrared (LWIR) coded aperture dispersive spectrometer

C. Fernandez, B. D. Guenther, M. E. Gehm, D. J. Brady, M. E. Sullivan

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

26 Scopus citations

Abstract

We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source information to the detector plane. Post-processing techniques on the data provide spectral estimates of the source. Comparative experimental results between a slit and coded aperture for emission spectroscopy from a CO₂ laser are demonstrated.

Original language	English (US)
Pages (from-to)	5742-5753
Number of pages	12
Journal	Optics Express
Volume	15
Issue number	9
DOIs	https://doi.org/10.1364/OE.15.005742
State	Published - Apr 30 2007
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OE.15.005742

Cite this

@article{1e45d8db9bb44626bcc78d3393b657a6,

title = "Longwave infrared (LWIR) coded aperture dispersive spectrometer",

abstract = "We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source information to the detector plane. Post-processing techniques on the data provide spectral estimates of the source. Comparative experimental results between a slit and coded aperture for emission spectroscopy from a CO2 laser are demonstrated.",

author = "C. Fernandez and Guenther, {B. D.} and Gehm, {M. E.} and Brady, {D. J.} and Sullivan, {M. E.}",

year = "2007",

month = apr,

day = "30",

doi = "10.1364/OE.15.005742",

language = "English (US)",

volume = "15",

pages = "5742--5753",

journal = "Optics Express",

issn = "1094-4087",

publisher = "Optica Publishing Group (formerly OSA)",

number = "9",

}

TY - JOUR

T1 - Longwave infrared (LWIR) coded aperture dispersive spectrometer

AU - Fernandez, C.

AU - Guenther, B. D.

AU - Gehm, M. E.

AU - Brady, D. J.

AU - Sullivan, M. E.

PY - 2007/4/30

Y1 - 2007/4/30

N2 - We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source information to the detector plane. Post-processing techniques on the data provide spectral estimates of the source. Comparative experimental results between a slit and coded aperture for emission spectroscopy from a CO2 laser are demonstrated.

AB - We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source information to the detector plane. Post-processing techniques on the data provide spectral estimates of the source. Comparative experimental results between a slit and coded aperture for emission spectroscopy from a CO2 laser are demonstrated.

UR - http://www.scopus.com/inward/record.url?scp=34247855118&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34247855118&partnerID=8YFLogxK

U2 - 10.1364/OE.15.005742

DO - 10.1364/OE.15.005742

M3 - Article

AN - SCOPUS:34247855118

SN - 1094-4087

VL - 15

SP - 5742

EP - 5753

JO - Optics Express

JF - Optics Express

IS - 9

ER -

Longwave infrared (LWIR) coded aperture dispersive spectrometer

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this