Characteristics of two-photon absorption in methanol solutions of Rhodamine 6G using laser induced pulsed photoacoustics
R Philip; P Sathy; V P N Nampoori; J Philip; C P G Vallabhan; R Philip; Dept. of Phys., Cochin Univ. of Sci. & Technol., India; P Sathy; Dept. of Phys., Cochin Univ. of Sci. & Technol., India; V P N Nampoori; Dept. of Phys., Cochin Univ. of Sci. & Technol., India; J Philip; Dept. of Phys., Cochin Univ. of Sci. & Technol., India; C P G Vallabhan; Dept. of Phys., Cochin Univ. of Sci. & Technol., India
Журнал:
Journal of Physics B: Atomic, Molecular and Optical Physics
Дата:
1992-01-14
Аннотация:
Two-photon absorption in methanol solutions of Rhodamine 6G is investigated by photoacoustics using the second harmonic of a pulsed Nd:YAG laser. Competition between one-photon and two-photon processes is observed, depending critically on the sample concentration and input light flux.
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