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Midinfrared molecular gas lasers optically pumped by a continuously tunable infrared optical parametric oscillator

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3 Author(s)
Tapalian, H.Charles ; Department of Chemistry and Columbia Radiation Laboratory, Columbia University, New York, New York 10027 ; Michaels, C.A. ; Flynn, George W.

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We report the observation of midinfrared super radiant pulses emitted from molecular gases pumped by a narrow-band, continuously tunable infrared optical parametric oscillator. Molecules pumped either into a vibrational combination band or a vibrational overtone state decay by means of super radiant emission to a lower vibrationally excited state. Emission was observed in N2O at 4.5 and 8 μm, and in C2H2 at 13.6 μm and 15.7 μm. Pulse energies as high as 0.5 mJ and pulse widths as short as 7 ns make this an excellent technique for the production of intense midinfrared light. © 1997 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:70 ,  Issue: 17 )