Observation of two-photon absorption in rhodamine 6G using photoacoustic technique
- Sathy, P.
- Philip, Reji
- Nampoori, V.P.N.
- Vallabhan, C.P.G.
Publication date
January 1990
DOI Publisher
Elsevier BV ISSN
0030-4018 Journal
Optics Communications Citation count (estimate)
6Abstract
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)Two-photon absorption in Rhodamine 6G using the second harmonic of a pulsed Q-switched Nd:YAG laser has been studied by photoacoustic technique. It is observed that there is a competition between one-photon and two-photon absorption processes. At lower concentration the two-photon process is predominant over the one-photon process
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