Optically pumped far infrared molecular lasers: molecular and application aspects

Mukhopadhyay, Indranath; Singh, Shyam

doi:10.1016/s1386-1425(97)00230-8

Cited by 7 publications

(1 citation statement)

References 159 publications

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“…Mid-and far-infrared lasers open up new prospects in many applications such as non-linear saturation spectroscopy [1], optical wireless communication [2], detection of trace gases [3], measurement of satellite altitude [4], investigation of high temperature superconductors [5], plasma diagnostics [6], measurement of paper moisture [7], inspection of high voltage cable insulation [8], frequency synthesis [9], laser isotope and isomer separation [10], and BTX sensors [11]. In particular, narrow-band high-power mid-infrared lasers are very useful in spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Power extraction problem in the externally pumped 16 m gasdynamic lasers: modelling and optimization

Bahrampour

Farrahi

2002

J. Phys. D: Appl. Phys.

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Power extraction problem in the gasdynamic lasers is studied by developing a quasi-one-dimensional model. Flow variables and characteristic parameters of the 16 μm output beam are obtained by numerical calculations. It is shown numerically that this type of the gasdynamic lasers can deliver a large amount of energy in high repetition rate. Based on this model, the output energy of the laser is optimized by employing the variational method. The most important parameter, the optimal nozzle-shape, is obtained by defining the family of optimal shapes. It is shown that the supersonic part of each member of this family consists of an acceleration part, an uniformization part which is a curved surface and is smoothly connected to the first part, and a relaxation duct. Finally, numerical optimization with respect to several parameters is carried out.

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