Investigating Two-Photon-Induced Fluorescence in Rhodamine-6G in Presence of Cetyl-Trimethyl-Ammonium-Bromide.
We investigate the effect of cetyl-trimethyl-ammonium-bromides (CTAB) concentration on the fluorescence of Rhodamine-6G in water. This spectroscopic study of Rhodamine-6G in presence of CTAB was performed using two-photon-induced-fluorescence at 780 nm wavelength using high repetition rate femtosecond laser pulses. We report an increment of ∼10 % in the fluorescence in accordance with ∼12 % enhancement in the absorption intensity of the dye molecule around the critical micellar concentration. We discuss the possible mechanism for the enhancement in the two-photon fluorescence intensity and the importance of critical micellar concentration.
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
Sandeep Kumar
SK
Maurya
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
Dheerendra
D
Yadav
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India. dgoswami@iitk.ac.in.
Debabrata
D
Goswami
Cetyltrimethylammonium bromides (CTAB); Critical micelle concentration (CMC); Rhodamine 6G; Two photon induced fluorescence (TPIF)