Novel laser on vibronic crystal with electron excitation as a lidar transmitter

Anatoli N. Maltsev

doi:10.1117/12.351356

28 May 1999 Novel laser on vibronic crystal with electron excitation as a lidar transmitter

Anatoli N. Maltsev

Proceedings Volume 3707, Laser Radar Technology and Applications IV; (1999) https://doi.org/10.1117/12.351356
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

The author for the first time develops the elementary theory of laser on vibronic crystal with electron excitation allowing to describe theoretically the main generation characteristics of laser electron -- oscillatory and recombination transitions in a dielectric ion crystal of a vibronic type, pumped both by electron, and combined (optical and electron) technique. On the basis of the mentioned above elementary theory the estimations of main generation characteristics for laser transitions in a crystal Al₂O₃:Ti³⁺, excited by a pulsed electron beam are carried out. In particular, there are determined optimum (for generation energy in a pulse) parameters of pulsed electron excitation for laser transition ²E - ²T_2g of an ion Ti³⁺: electron energy in a beam 200 - 300 keV, current density 1 kA/cm². Thus the wavelength tunable band of laser radiation reaches from 0.6 microns up to 1.1 microns, and under certain conditions -- from 0.55 microns up to 1.3 microns. The basic opportunity of simultaneous laser generation on the recombination transition bands from 0.29 microns up to 0.45 microns is discussed. The examples of laser complexes with new architecture are given which by numerical modeling allow to predict an opportunity of laser generation energy in a pulse up of to 1 J and average output power up to 100 W and more inside a wavelength tunable range approximately from 0.55 microns up to 1.3 microns, that can be of interest for a wide range of laser radar technologies.

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Anatoli N. Maltsev "Novel laser on vibronic crystal with electron excitation as a lidar transmitter", Proc. SPIE 3707, Laser Radar Technology and Applications IV, (28 May 1999); https://doi.org/10.1117/12.351356

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KEYWORDS

Crystals

Laser crystals

Ions

Luminescence

Electron beams

LIDAR

Tunable lasers

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