Abstract
We report on absolute line strength measurements of P(1), R(0) and R(1) singlet lines in the 3.3μm ν3 (C–H stretching) band of methane 12CH4 at reference temperature T = K. Line strength measurements are performed at low pressure P ≤1 Torr) using direct absorption spectroscopy technique based on a widely tunable continuous-wave singly resonant optical parametric oscillator. The 1σ overall accuracy in line strength determinations ranges between 7 and 8 % mostly limited by pressure and frequency measurements. A comparison with previous reported values is made. Our results show good agreement with the HITRAN 2012 database.
Original language | English |
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Pages (from-to) | 681-687 |
Number of pages | 7 |
Journal | Applied Physics B: Lasers and Optics |
Volume | 117 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2014 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)