Energy-transfer dye lasers

Abstract

A brief review of energy-transfer dye lasers is presented along with an experimental study of a Coumarin 102 (donor) + fluorescein (acceptor) laser system and its fluorescence when pumped by N, laser and Hg-lamp, respectively. The results indicate the dominance of resonance energy transfer at high concentrations for pulsed excitation.

Photophysics and Mechanisms of Intramolecular Electronic Energy Transfer in Bichromophoric Molecular Systems: Solution and Supersonic Jet Studies

“…Fo ¨rster theory and its many extensions (see below) are ideally suited for quantitative interpretation and prediction of experimental observations of inter-EET in systems ranging from dye solutions and ETDL systems, [44][45][46][47][48][49][50][82][83][84][85][86][87][88][89][90][91][92][93] polymers, [60][61][62][63][64][94][95][96] molecules adsorbed on surfaces, [97][98][99][100][101][102] transfer between monolayers and monolayer assemblies, [103][104][105] in Langmuir-Blodget films, [106][107][108][109][110] in micellar solutions [111][112][113] to restricted geometries, fractals, and disordered systems. [114][115][116][117]…”

“…Later, other bichromophoric molecular systems, such as compounds III and IV were studied in solution and in supersonic jets in order to elucidate the mechanisms of intra-EET and intra-ELT. [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] EET has significant implications in biological systems, [41][42][43] energy transfer dye laser (ETDL) operation, [44][45][46][47][48][49][50] in the realization of molecular electronic devices, [51][52][53] in photodynamic therapy, 54 in light harvesting, 55,56 in photochemical synthesis, 57,58 in developing optical fiber sensors for pH determination in physiological systems, 59 in the determination of the conformation of macromolecules, [60][61][62][63][64] and in the elucidation of the photophysical behavior of large molecules. 65 The purpose of this Review is to discuss progress made in understanding the photophysics and the mechanism of intra-EET within the general framework of radiative and nonradiative processes in molecules.…”

Optofluidic ring resonator dye lasers

“…An alternative excitation scheme is through the energy-transfer [30][31][32][33][34][35][36][37] , in which dye mixtures, composed of the donor and the acceptor, are used. Donor dye molecules are directly excited by the pump laser and subsequently transfer energy to excite the acceptor molecules for lasing.…”

Distributed-Feedback Solid-State Polymeric-Dye Lasers Based on Excitation-Energy Transfer

“…Energy-transfer dye lasers based on various pumping schemes have been reported in the literature [20][21][22]. The energy transfer between a donor and an acceptor could be modulated via the energy migration.…”