A. V. Dugin, B. Ya. Zel'dovich, P. N. Il'inykh, V. S. Liberman, O. P. Nesterkin, “Higher spatial harmonics of photorefractive gratings written by phase-locked detection”, Kvantovaya Elektronika, 1992, Volume 19, Number 11,Pages <nobr>1129

Laser applications and other topics in quantum electronics

Higher spatial harmonics of photorefractive gratings written by phase-locked detection

A. V. Dugin, B. Ya. Zel'dovich, P. N. Il'inykh, V. S. Liberman, O. P. Nesterkin

Abstract: The higher spatial harmonics of the photorefractive response have been studied theoretically and experimentally for gratings written by phase-locked detection in an alternating external field. The conditions for writing higher spatial harmonics are derived analytically. The amplitude of the second spatial harmonic has been found experimentally as a function of the spatial frequency in two Bi₁₂TiO₂₀ crystals.

UDC: 373.535

PACS: 42.40.Eq, 42.70.Ln, 42.70.Nq, 42.40.Ht, 42.40.Lx

Received: 05.05.1992