Phase Conjugation in Saturable Absorbing Dye Films by Degenerate Four-Wave Mixing and Holographic Processes Using Nanosecond Pulse and CW Lasers

Autor:	Hiromasa Tanaka, Hirofumi Fujiwara, Kazuo Nakagawa, Akira Horikoshi
Rok vydání:	2002
Předmět:	Materials science business.industry Doping Holography Nonlinear optics Erythrosine Laser Atomic and Molecular Physics and Optics Pulsed laser deposition law.invention chemistry.chemical_compound Four-wave mixing Optics chemistry law Phase conjugation business
Zdroj:	Optical Review. 9:106-111
ISSN:	1349-9432 1340-6000
DOI:	10.1007/s10043-002-0106-0
Popis:	We report on the simultaneous generation of phase-conjugate signals by degenerate four-wave mixing (DFWM) and holographic processes using a nanosecond pulse and a CW lasers in polyvinyl alcohol (PVA) films doped with four kinds of saturable absorbing dyes. For the pulse laser, of the four kinds of dye-doped PVA films, the erythrosine B-doped PVA and uranine doped-PVA films generate PC signals only by the DFWM process, while the other dye-doped PVA films generate PC signals simultaneously by not only the DFWM process but also the holographic process. Especially, the safranin T-doped PVA film generates strong PC signals by the holographic process. In contrast, all of the dye-doped PVA films generate the two types of PC signals for the CW laser. The fading of dye molecules is found to result in the generation of the holographic component of PC signals which governs the temporal behavior of the total PC signals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9af212a371c34cd5c5d5301384eeabb5 https://doi.org/10.1007/s10043-002-0106-0 Zobrazit plný text záznamu Full text from SpringerLink