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. 2017 Jul;27(4):1399-1403.
doi: 10.1007/s10895-017-2076-4. Epub 2017 Apr 11.

Concentration Dependent Approach for Accurate Determination of Two-Photon Absorption Cross-Section of Fluorescent dye Molecule

Sandeep Kumar Maurya  1 , Chayan Dutta  1 , Debabrata Goswami  2
Affiliations

Concentration Dependent Approach for Accurate Determination of Two-Photon Absorption Cross-Section of Fluorescent dye Molecule

Sandeep Kumar Maurya et al. J Fluoresc. 2017 Jul.

Abstract

We have investigated the concentration dependent of two-photon induced fluorescence (TPIF) in methanolic solution of Rhodamine 6G and Rhodamine B dye using 120 fs laser pulses at 780 nm, 76 MHz repetition rate. TPIF study of these dyes was compared with their respective one photon fluorescence intensity. We have shown the effect of chopper on TPIF intensity from Rhodamine dyes, which have shown direct influence on the determined TPA Cross section of these dyes.

Keywords: High repetition femtosecond pulses; Spectroscopy; Two-photon induced fluorescence.

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