# Gas temperature measurement based on contrast reversal in mid-infrared CO                    <sub>2</sub>                    images

https://mdr.nims.go.jp/datasets/5edc28d9-68ba-48cc-a85e-c82f200664e4

## File

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## Id

5edc28d9-68ba-48cc-a85e-c82f200664e4

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-19T23:24:51.723462Z

## Updated at

2026-05-20T00:27:28.420987Z

## Published at

2026-05-20T01:29:23.463147Z

## Doi



## First published url

https://doi.org/10.1364/oe.596786

## Date published

2026-06-01

## Recorded date published

2026

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Gas temperature measurement based on contrast reversal in mid-infrared CO                    <sub>2</sub>                    images
  title_type: original
  lang: en

## Description

- description: We demonstrate noninvasive measurement of gas temperature based on
    the optical gas imaging. Gas flows containing carbon dioxide (CO2) appear as either
    bright or dark images, depending on the relative temperatures of the background
    and the gas, when using a narrowband mid-infrared camera tuned to the CO2 absorption
    wavelength at 4.3 μm. When the background temperature is varied continuously,
    the gas image vanishes transiently and then the contrast reverses. The specific
    background temperature at the point when the gas image disappears provides the
    gas temperature. This technique is an evolved implementation of the classical
    line reversal method, made possible by advanced infrared devices. We also apply
    this technique to two-dimensional temperature mapping and to dynamic emissions
    from engine exhaust and human breathing.
  description_type: abstract
  lang: und

## Creator

- name: Hideki T. Miyazaki
  role: author
  orcid: https://orcid.org/0000-0003-4152-1171
- name: Takeshi Kasaya
  role: author
  orcid: https://orcid.org/0000-0002-1976-8760
- name: Masahiro Saito
  role: author
- name: Kazuya Kimoto
  role: author
- name: Yutaro Tsuiki
  role: author
- name: Tetsuyuki Ochiai
  role: author
  orcid: https://orcid.org/0000-0003-2933-0014

## Contact agent



## Publisher

organization: Optica Publishing Group

## Managing organization



## Keyword

- subject: ガス可視化
  schema: not_defined

## Rights

- description: "© 2026 Optica Publishing Group. Users may use, reuse, and build upon
    the article, or use the article for text or data mining, so long as such uses
    are for non-commercial purposes and appropriate attribution is maintained. All
    other rights are reserved."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Optics Express
  issn: '10944087'
  volume: '34'
  issue: '11'
  start_page: 19701
  end_page: 19724

## Conference



## Related item



## Funding

- funder_name: National Institute for Materials Science
  description: Sensors and Actuators Research Project
- identifier: PRISM
  funder_name: Cabinet Office
- funder_name: Ichimura Foundation of New Technology
- funder_name: Steel Foundation for Environmental Protection Technology
- identifier: JP22K18990
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23K26576
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23H01883
  funder_name: Japan Society for the Promotion of Science
- identifier: JPNP14004
  funder_name: New Energy and Industrial Technology Development Organization

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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 9fe6ab30-27c0-4e51-9667-b3fe69272e17
  filename: oe-34-11-19701.pdf
  content_type: application/pdf
  size: 4999282
  md5: 6392929407e0ad6c07f5cb6bd4c79590
- id: 0146a878-7c82-4e72-a53e-a660b9599fc7
  filename: 7880239.pdf
  content_type: application/pdf
  size: 2668141
  md5: 21c15c2c1dfe5709538dcc7cdf818ca7

## Thumbnail

fileset_id: 9fe6ab30-27c0-4e51-9667-b3fe69272e17
filename: oe-34-11-19701.pdf