title: Room-temperature lasing from fluorene thin-film crystals densely doped with anthracene.
abstract: The potential for room-temperature lasing in densely doped organic crystals has been examined using (fluorene)0.8-(anthracene)0.2 thin crystals fabricated in a narrow gap between two quartz plates. An excitation-intensity dependence study confirms that the system shows spectral line narrowing, a super linear increase of the narrow line above threshold excitation intensity, and laser cavity modes. These results indicate that lasing has been observed in the densely doped organic crystal, which contains in-plane cavities with a length of approximately 100 μm.
authors.affiliation: Department of Physics, Konan University, Kobe, Japan. tamao@konan-u.ac.jp
authors.forename: Tamao
authors.initials: T
authors.lastname: Aoki-Matsumoto
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Mizuno
authors.forename: Masao
authors.initials: M
authors.lastname: Ichida
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Ando
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hirai
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Mizuno