Multiquantum vibrational exchange CO laser kinetic model

Yuri B. Konev; Igor Kochetov; Alexander K. Kurnosov; B. A. Mirzakarimov

doi:10.1117/12.144602

4 May 1993 Multiquantum vibrational exchange CO laser kinetic model

Yuri B. Konev, Igor Kochetov, Alexander K. Kurnosov, B. A. Mirzakarimov

Proceedings Volume 1810, 9th International Symposium on Gas Flow and Chemical Lasers; (1993) https://doi.org/10.1117/12.144602
Event: Ninth International Symposium on Gas Flow and Chemical Lasers, 1992, Heraklion, Greece

Abstract

The new kinetic model of CO laser is developed. The basis of the model is multiquantum vibrational exchange rate constants given by Billing. The full Billing model of multiquantum VV exchange gives rise to satisfactory coincidence with experimental data on vibrational distribution function without any fitted parameters. Computer models of vibrational kinetics for CO containing mixtures are currently widely used in the analysis of problems of highly nonequilibrium vibrational excitation and in investigations of CO lasers. Until now only the single quantum VV exchange models were considered. For single quantum processes CO(v) + CO(u) yields CO(v - 1) + CO(u + 1) the rate constants (RC) are usually calculated using expressions, based on the first order perturbation theory assumptions. The parameters of well known theoretical expressions are fitted thereafter to get the magnitude and vibrational quantum number dependence of RC, measured experimentally. The RC, extended in this way to VV exchange of highly excited molecules, grow rapidly with v,u and exceed gas kinetical RC at rather low v,u > 7 for quasi-resonance exchange. Thus the validity of the first order perturbation theory expressions breaks and vibrational kinetics models using these RC become doubtful for relatively low levels. Nevertheless, these RC were widely used in practical calculations of CO laser kinetics. Their justification was in satisfactory agreement with measurements of vibrational distribution function (VDF), available in the literature.

Citation Download Citation

Yuri B. Konev, Igor Kochetov, Alexander K. Kurnosov, and B. A. Mirzakarimov "Multiquantum vibrational exchange CO laser kinetic model", Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); https://doi.org/10.1117/12.144602

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Gas lasers

Carbon monoxide

Data modeling

Molecules

Quantum physics

Chemical lasers

Computer simulations

Show All Keywords

Keywords/Phrases

Search In:

Publication Years