Measurement of Molecular Relaxation Rates by IR-FIR Double Resonance Spectroscopy

J. Bakos, Kalman Mandula, Zsuzsa Sorlei

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The rotational and vibrational relaxation rates of molecules, the latter of which limits the efficiency of optically pumped far infrared lasers, can be measured by infrared-far-infrared double resonance spectroscopy. By measuring the gain line profile and amplitude as a function of the pressures of the laser gas and of additional different buffer gases present in the gain cell, the rate of molecular deexcitation processes can be determined. The results of the measurement of the pressure broadening coefficients of the methanol X = 118.8 μm line caused by collisions with methanol, SF6, and He are presented.

Original languageEnglish
Pages (from-to)1094-1097
Number of pages4
JournalIEEE Journal of Quantum Electronics
Volume27
Issue number4
DOIs
Publication statusPublished - 1991

Fingerprint

molecular relaxation
Methanol
methyl alcohol
Optically pumped lasers
Spectroscopy
Infrared radiation
Gas lasers
pressure broadening
gas lasers
Infrared lasers
infrared lasers
spectroscopy
buffers
Molecules
collisions
coefficients
profiles
cells
Gases
gases

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Measurement of Molecular Relaxation Rates by IR-FIR Double Resonance Spectroscopy. / Bakos, J.; Mandula, Kalman; Sorlei, Zsuzsa.

In: IEEE Journal of Quantum Electronics, Vol. 27, No. 4, 1991, p. 1094-1097.

Research output: Contribution to journalArticle

Bakos, J. ; Mandula, Kalman ; Sorlei, Zsuzsa. / Measurement of Molecular Relaxation Rates by IR-FIR Double Resonance Spectroscopy. In: IEEE Journal of Quantum Electronics. 1991 ; Vol. 27, No. 4. pp. 1094-1097.
@article{d5431a256beb46a982b3e5e68b94c3a5,
title = "Measurement of Molecular Relaxation Rates by IR-FIR Double Resonance Spectroscopy",
abstract = "The rotational and vibrational relaxation rates of molecules, the latter of which limits the efficiency of optically pumped far infrared lasers, can be measured by infrared-far-infrared double resonance spectroscopy. By measuring the gain line profile and amplitude as a function of the pressures of the laser gas and of additional different buffer gases present in the gain cell, the rate of molecular deexcitation processes can be determined. The results of the measurement of the pressure broadening coefficients of the methanol X = 118.8 μm line caused by collisions with methanol, SF6, and He are presented.",
author = "J. Bakos and Kalman Mandula and Zsuzsa Sorlei",
year = "1991",
doi = "10.1109/3.83345",
language = "English",
volume = "27",
pages = "1094--1097",
journal = "IEEE Journal of Quantum Electronics",
issn = "0018-9197",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

TY - JOUR

T1 - Measurement of Molecular Relaxation Rates by IR-FIR Double Resonance Spectroscopy

AU - Bakos, J.

AU - Mandula, Kalman

AU - Sorlei, Zsuzsa

PY - 1991

Y1 - 1991

N2 - The rotational and vibrational relaxation rates of molecules, the latter of which limits the efficiency of optically pumped far infrared lasers, can be measured by infrared-far-infrared double resonance spectroscopy. By measuring the gain line profile and amplitude as a function of the pressures of the laser gas and of additional different buffer gases present in the gain cell, the rate of molecular deexcitation processes can be determined. The results of the measurement of the pressure broadening coefficients of the methanol X = 118.8 μm line caused by collisions with methanol, SF6, and He are presented.

AB - The rotational and vibrational relaxation rates of molecules, the latter of which limits the efficiency of optically pumped far infrared lasers, can be measured by infrared-far-infrared double resonance spectroscopy. By measuring the gain line profile and amplitude as a function of the pressures of the laser gas and of additional different buffer gases present in the gain cell, the rate of molecular deexcitation processes can be determined. The results of the measurement of the pressure broadening coefficients of the methanol X = 118.8 μm line caused by collisions with methanol, SF6, and He are presented.

UR - http://www.scopus.com/inward/record.url?scp=0026142450&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026142450&partnerID=8YFLogxK

U2 - 10.1109/3.83345

DO - 10.1109/3.83345

M3 - Article

VL - 27

SP - 1094

EP - 1097

JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

SN - 0018-9197

IS - 4

ER -