title: Solvent-free fluidic organic dye lasers.
abstract: We report on the demonstration of liquid organic dye lasers based on 9-(2-ethylhexyl)carbazole (EHCz), so-called liquid carbazole, doped with green- and red-emitting laser dyes. Both waveguide and Fabry-Perot type microcavity fluidic organic dye lasers were prepared by capillary action under solvent-free conditions. Cascade Förster-type energy transfer processes from liquid carbazole to laser dyes were employed to achieve color-variable amplified spontaneous emission and lasing. Overall, this study provides the first step towards the development of solvent-free fluidic organic semiconducting lasers and demonstrates a new kind of optoelectronic applications for liquid organic semiconductors.
authors.affiliation: Department of Physics, CNRS-Ewha International Research Center, Ewha Womans University, Seoul 120-750, South Korea.
authors.forename: Eun Young
authors.initials: EY
authors.lastname: Choi
authors.forename: Loic
authors.initials: L
authors.lastname: Mager
authors.forename: Tran Thi
authors.initials: TT
authors.lastname: Cham
authors.forename: Kokou D
authors.initials: KD
authors.lastname: Dorkenoo
authors.forename: Alain
authors.initials: A
authors.lastname: Fort
authors.forename: Jeong Weon
authors.initials: JW
authors.lastname: Wu
authors.forename: Alberto
authors.initials: A
authors.lastname: Barsella
authors.forename: Jean-Charles
authors.initials: JC
authors.lastname: Ribierre
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D009930:Organic Chemicals / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D012996:Solutions / Q000737:chemistry*; D012997:Solvents; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D004396:Coloring Agents; D009930:Organic Chemicals; D012996:Solutions; D012997:Solvents