Lasers

Pulsed H₂ — F₂ laser with simultaneous lasing on rotational and vibrational—rotational transitions

N. E. Molevich, S. Yu. Pichugin

Samara Branch of P. N. Lebedev Physical Institute, Russian Academy of Sciences

Abstract: The possibility of operation of a pulsed chemical H₂ — F₂ laser on purely rotational transitions with simultaneous lasing on vibrational—rotational transitions is theoretically investigated. The lasing of a hydrogen—fluorine laser (mixture pressure 1.1 atm) on both v,j — 1 → v — 1,j (j = 2 — 20) and v,j → v,j — 1 (j = 12 — 19) transitions has been modelled taking into account the resonant one- and two-quanta vibrational—rotational processes. The calculated specific energy extraction for purely rotational transitions reaches 0.3—0.5 J L^-1 at j = 18 and 19 (wavelength 15.5—14 μm) and 0.4—0.7 J L^-1 at j = 13 and 14 (wavelength 21—19 μm).

PACS: 42.55.Ks, 42.60.Lh, 33.20.Vq, 33.20.Sn

Received: 02.04.2010
Revised: 04.02.2011

 English version: Quantum Electronics, 2011, 41:5, 427–429

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