Plasma kinetic study of high-power, high-repetition-rate, closed-cycle transversely excited CO2 laser

Hirokazu Hokazono; Minoru Obara

doi:10.1117/12.18503

1 June 1990 Plasma kinetic study of high-power, high-repetition-rate, closed-cycle transversely excited CO₂ laser

Hirokazu Hokazono, Minoru Obara

Proceedings Volume 1225, High-Power Gas Lasers; (1990) https://doi.org/10.1117/12.18503
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

We have developed a comprehensive theoretical model dealing with both variations of laser output energy and laser gas composition as a function of the repetitive laser pulse in order to evaluate the performance characteristics of the high-power, closed-cycle transversely excited (TE) CO₂ laser. According to our analysis, the number of CO₂ molecules decomposed per unit input energy of single discharge pulse was calculated to be 1.45x10¹⁷ molecules/J for the laser gas mixture of C0₂/N₂/He=l5/l5/70. The number of N₂ molecules decomposed per unit input energy density was calculated to be about 24000 times smaller than that of CO₂. Our model theoretically predicted for the first time that a very little quantity of water vapor (<50 ppm) in the laser gas dramatically decreased the equilibrium CO₂ decomposition level, resulting in increasing the laser output energy.

Citation Download Citation

Hirokazu Hokazono and Minoru Obara "Plasma kinetic study of high-power, high-repetition-rate, closed-cycle transversely excited CO₂ laser", Proc. SPIE 1225, High-Power Gas Lasers, (1 June 1990); https://doi.org/10.1117/12.18503

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