Water-vapor absorption line measurements in the 940-nm band by using a Raman-shifted dye laser
- 20 February 1993
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 32 (6) , 992-998
- https://doi.org/10.1364/ao.32.000992
Abstract
We report water-vapor absorption line measurements that are made by using the first Stokes radiation (930–982 nm) with HWHM 0.015 cm−1 generated by a narrow-linewidth, tunable dye laser. Forty-five absorption line strengths are measured with an uncertainty of 6% and among them are fourteen strong lines that are compared with previous measurements for the assessment of spectral purity of the light source. Thirty air-broadened linewidths are measured with 8% uncertainty at ambient atmospheric pressure with an average of 0.101 cm−1. The lines are selected for the purpose of temperature-sensitive or temperature-insensitive lidar measurements. Results for these line strengths and linewidths are corrected for broadband radiation and finite laser linewidth (0.015 cm−1 HWHM) broadening effects and compared with the high-resolution transmission molecular absorption.Keywords
This publication has 18 references indexed in Scilit:
- Optimization of a Raman shifted dye laser system for DIAL applicationsApplied Optics, 1990
- : line positions and intensities between 9500 and 11500 cm−1. The interacting vibrational states (041), (220), (121), (022), (300), (201), (102), and (003)Canadian Journal of Physics, 1989
- N2-broadening coefficients of H216O lines between 9 500 and 11 500 cm−1Journal of Molecular Spectroscopy, 1989
- Temperature dependence of N2-broadened halfwidths of water vapor: The pure rotation and ν2 bandsJournal of Molecular Spectroscopy, 1988
- The HITRAN database: 1986 editionApplied Optics, 1987
- Theoretical calculations of N_2-broadened halfwidths of H_2O using quantum Fourier transform theoryApplied Optics, 1983
- Lidar Techniques For Humidity And Temperature MeasurementOptical Engineering, 1982
- Water absorption line, 931–961 nm: selected intensities, N2-collision-broadening coefficients, self-broadening coefficients, and pressure shifts in airJournal of Quantitative Spectroscopy and Radiative Transfer, 1982
- Water vapor differential absorption lidar development and evaluationApplied Optics, 1979
- Intensities and N2 collision-broadening coefficients measured for selected H2O absorption lines between 715 and 732 nmJournal of Quantitative Spectroscopy and Radiative Transfer, 1979