V. Ya. Agroskin, B. G. Bravy, G. K. Vasil'ev, V. I. Gur'ev, V. G. Karel'skii, S. A. Kashtanov, E. F. Makarov, S. A. Sotnichenko, Yu. A. Chernyshev, “Divergence and polarisation of radiation of a wide-aperture chemical DF laser with an unstable resonator”, Kvantovaya Elektronika, 2016, Volume 46, Number 8,Pages <nobr>703

This article is cited in 1 paper

Lasers

Divergence and polarisation of radiation of a wide-aperture chemical DF laser with an unstable resonator

V. Ya. Agroskin^a, B. G. Bravy^a, G. K. Vasil'ev^a, V. I. Gur'ev^a, V. G. Karel'skii^b, S. A. Kashtanov^a, E. F. Makarov^a, S. A. Sotnichenko^a, Yu. A. Chernyshev^a

^a Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
^b Scientific-Research Institute for Precision Instrument-Making

Abstract: Influence of a plane-parallel plate, placed inside an unstable resonator and entirely overlapping the beam cross section, on the polarisation and divergence of wide-aperture DF-laser radiation is studied at various angles of plate inclination to the resonator axis. It is shown that the plate inside a resonator has no effect on the radiation divergence and only requires a corresponding shift of a convex mirror in order to keep the resonator confocal. A noticeable change in the radiation polarisation has been observed only at angles of plate inclination greater than 20°; at angles of above 45° the radiation becomes actually linearly polarised.

Keywords: unstable resonator, radiation polarisation, divergence, DF laser.

Received: 24.02.2016