Collisionless excitation of NH3 molecules via one- and two-photon transitions by multimode radiation of TEA CO2 laser

Yu. A. Kuritsyn; G. N. Makarov; V. R. Mironenko; I. Pak

doi:10.1117/12.58679

1 April 1992 Collisionless excitation of NH₃ molecules via one- and two-photon transitions by multimode radiation of TEA CO₂ laser

Yu. A. Kuritsyn, G. N. Makarov, V. R. Mironenko, I. Pak

Author Affiliations +

Proceedings Volume 1724, Tunable Diode Laser Applications; (1992) https://doi.org/10.1117/12.58679
Event: Tunable Diode Laser Applications, 1993, Moscow, Russian Federation

Abstract

The excitation of ammonia via one- and two-photon transitions by TEA CO₂-laser radiation has been studied under collisionless conditions. It has been shown that the experimental results of two-photon excitation of ¹⁴NH₃ molecule in the 2 (nu) ₂ a(1, 1) $IMP a(1, 1) transition by the 10P(24) CO₂-laser line, the frequency offset of which is approximately equals 0.02 cm^-1, can be described well by modeling the laser radiation as a broadband chaotic field. The experimental results of one-photon excitation in ¹⁴NH₃ and ¹⁵NH₃,⁴ with the offset values exceeding the CO₂- laser linewidth, can be also described well with the use of a chaotic field with a continuous spectrum. In the case of a nearly exact one-photon resonance, however, the excitation efficiency of molecules depends critically on the real mode structure of the CO₂-laser radiation.

Citation Download Citation

Yu. A. Kuritsyn, G. N. Makarov, V. R. Mironenko, and I. Pak "Collisionless excitation of NH₃ molecules via one- and two-photon transitions by multimode radiation of TEA CO₂ laser", Proc. SPIE 1724, Tunable Diode Laser Applications, (1 April 1992); https://doi.org/10.1117/12.58679

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