title: Lasing from epitaxially oriented needle crystals of a thiophene/phenylene co-oligomer.
abstract: Optically pumped lasing of epitaxially oriented molecular crystals is presented. Needle-like crystals of a thiophene/phenylene co-oligomer is grown along the [110] direction of a KCl substrate. The fluorescence light is one-dimensionally confined and amplified by the self-waveguiding effect in the elongated needles. The Fabry-Pérot resonation by the terminated ends results in laser oscillations corresponding to the needle length.
authors.affiliation: Graduate School of Materials Science, Nara Institute of Science and Technology, Takayama, Ikoma, Nara, Japan. mi-hitoshi@ms.naist.jp
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Mizuno
authors.forename: Itaru
authors.initials: I
authors.lastname: Ohnishi
authors.forename: Hisao
authors.initials: H
authors.lastname: Yanagi
authors.forename: Fumio
authors.initials: F
authors.lastname: Sasaki
authors.forename: Shu
authors.initials: S
authors.lastname: Hotta
mesh_terms: D003460:Crystallization; D007834:Lasers; D011108:Polymers / Q000737:chemistry*; D011189:Potassium Chloride / Q000737:chemistry; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D011108:Polymers; D013876:Thiophenes; D011189:Potassium Chloride