Degenerate four-wave mixing in phenylbenzimidazole proton-transfer laser dyes

✍ Scribed by A. Costela; I. Garcia-Moreno

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 589 KB
• Volume: 249
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)01401-2

✦ Synopsis

Thermally induced phase conjugation by degenerate four-wave mixing in 1,4-dioxane solutions of the 5'-fluoro and 5'-chloro derivatives of the 2-(2'-hydroxyphenyl) benzimidazole proton-transfer dye is reported in the weak absorption region, low-reflectivity regime and nanosecond time domain. Efficiency-related aspects of the nonlinear process are investigated and the different contributions to the thermalization processes are discussed. Evidence of oscillatory acoustic modes in the nonlinear medium is presented.