Enhancement of NCl(b) by excited iodine I(52P1/2)

Tientsai T. Yang

doi:10.1117/12.172703

1 June 1994 Enhancement of NCl(b) by excited iodine I(5²P_1/2)

Tientsai T. Yang

Proceedings Volume 2119, Intense Beams and Applications: Lasers, Ions, and Microwaves; (1994) https://doi.org/10.1117/12.172703
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

A promising candidate for a visible-wavelength chemical laser is the NCl molecule in the b¹(Sigma) electronic state, emitting at 665 nm. This state can be generated by purely chemical methods. The energy-pooling reaction, NCl(a¹(Delta) ) + I^*(P_1/2) yields (b¹(Sigma) ), is estimated to have a rate coefficient of 1 X 10¹¹ cm³/sec from a steady-state approximation. Experiments using a high speed flowtube have shown that NCl(a1(Delta) ) is generated in high yield via the reaction of HN3 with chlorine atoms. The measured yield is 65%. Preliminary measurements of gain were initiated employing the cavity ring-down technique. These experiments indicate that gain may be present under the operating conditions used. Confirmatory experiments are in progress.

Citation Download Citation

Tientsai T. Yang "Enhancement of NCl(b) by excited iodine I(5²P_1/2)", Proc. SPIE 2119, Intense Beams and Applications: Lasers, Ions, and Microwaves, (1 June 1994); https://doi.org/10.1117/12.172703

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