Maurya Sandeep Kumar, Dutta Chayan, Goswami Debabrata
Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India.
J Fluoresc. 2017 Jul;27(4):1399-1403. doi: 10.1007/s10895-017-2076-4. Epub 2017 Apr 11.
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.
我们使用780nm、重复频率为76MHz的120飞秒激光脉冲，研究了罗丹明6G和罗丹明B染料甲醇溶液中双光子诱导荧光（TPIF）的浓度依赖性。将这些染料的TPIF研究与其各自的单光子荧光强度进行了比较。我们展示了斩波器对罗丹明染料TPIF强度的影响，这对所测定的这些染料的双光子吸收截面有直接影响。
