V. I. Redkorechev

Optical harmonics generation in low-temperature laser-produced plasmas

Abstract Results of odd harmonics generation (up to eleventh, λ = 96 nm) of laser radiation (λ = 1.054 nm, τ = 3 ps) in a low-temperature atmospheric plasma and a surface plasma in vacuum are reported. Maximum efficiency was achieved for third harmonics generation (η = 10−3). High-order harmonics generation and frequency conversion optimization depending on radiation and nonlinear media characteristics are considered.

Efficient amplification of the stable picosecond pulses radiated from an Nd:glass oscillator with negative feedback

Abstract Stable pulses with a duration of ≈ 1 ps derived from a special designed pulsed Nd:glass laser were amplified by the injection seeding of a Q -switched laser. An amplification factor of 5 × 10 8 was achieved in this scheme.

Optical Harmonics Generation in Low-Temperature Laser-Produced Plasma

Harmonics generation of laser radiation ((lambda) equals 1.06 (mu) , (tau) equals 3 ps) in low-temperature atmospheric plasma and target plasma is investigated. Maximum efficiency was achieved for third harmonics generation ((eta) equals 10-3). Results of odd harmonics generation (up to eleventh, (lambda) equals 96 nm) are reported.

Three-color laser for pulse holography

Development of a three-color solid-state laser on phosphate neodymium glass for pulse holography is offered in the present paper. The laser has been assembled under the multicascade scheme with a single master oscillator. The powerful infra-red radiation on an output of such system has been frequency converted into green, dark blue and red radiation due to processes of the second harmonic and third harmonic generation of a neodymium laser radiation and generation of first anti-Stokes component of the Simulated Raman scattering respectively and has been divided into three various beams of different color. Varying the conditions of realization of above processes, it is possible to redistribute the radiation energy of the system between beams of various colors over a wide range. The energy of each beam will be sufficient for exposition of a photomaterial of the appropriate spectral sensitivity, and the joint influence of beams will make possible to obtain color pulse holograms and, in particular, color holographic portraits.

Generation of high-order harmonics radiation in laser plasma

Harmonics generation of laser radiation ((lambda) equals 1.06 (mu) , (tau) equals 3 ps) in low- temperature atmospheric plasma and target plasma is investigated. Results of odd harmonics generation (up to eleventh, (lambda) equals 96 nm) are reported.