Comb-Based Spectroscopic Gas Temperature Measurement in the Mid-Infrared Range
The redefinition of the International System of Units (SI) [1] separated unit definitions, based on a set of fundamental constants, from their realizations. Rotational line intensity ratio thermometry (LRT) [2], [3], also called rotational-state distribution thermometry, is one of optical realizations of kelvin that promises high accuracy. In contrast to Doppler broadening thermometry [4], LRT uses the integrated spectral line area which can be accurately retrieved even at pressures in which collisions significantly alter the line shape.
Authors
- Grzegorz Kowzan (ORCID: https://orcid.org/0000-0002-8196-9897)
- Shui-Ming Hu (ORCID: https://orcid.org/0000-0002-1565-8468)
- Szymon Wójtewicz
- Akiko Nishiyama (ORCID: https://orcid.org/0000-0003-2570-7224)
- Piotr Masłowski (ORCID: https://orcid.org/0000-0001-8882-7106)
- Daniel Lisak (ORCID: https://orcid.org/0000-0001-5545-7989)
- Katarzyna Bielska (ORCID: https://orcid.org/0000-0002-4218-9193)
- Yurong Xu (ORCID: https://orcid.org/0009-0008-5879-0750)
Institutions
- University of Science and Technology of China (CN)
- Nicolaus Copernicus University (PL)
- National Institute of Advanced Industrial Science and Technology (JP)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11110740
- Primary Topic
- Spectroscopy and Laser Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00