title: Three-dimensional organic microlasers with low lasing thresholds fabricated by multiphoton and UV lithography.
abstract: Cuboid-shaped organic microcavities containing a pyrromethene laser dye and supported upon a photonic crystal have been investigated as an approach to reducing the lasing threshold of the cavities. Multiphoton lithography facilitated fabrication of the cuboid cavities directly on the substrate or on the decoupling structure, while similar structures were fabricated on the substrate by UV lithography for comparison. Significant reduction of the lasing threshold by a factor of ~30 has been observed for cavities supported by the photonic crystal relative to those fabricated on the substrate. The lasing mode spectra of the cuboid microresonators provide strong evidence showing that the lasing modes are localized in the horizontal plane, with the shape of an inscribed diamond.
authors.forename: Vincent W
authors.initials: VW
authors.lastname: Chen
authors.forename: Nina
authors.initials: N
authors.lastname: Sobeshchuk
authors.forename: Clément
authors.initials: C
authors.lastname: Lafargue
authors.forename: Eric S
authors.initials: ES
authors.lastname: Mansfield
authors.forename: Jeannie
authors.initials: J
authors.lastname: Yom
authors.forename: Lucas R
authors.initials: LR
authors.lastname: Johnstone
authors.forename: Joel M
authors.initials: JM
authors.lastname: Hales
authors.forename: Stefan
authors.initials: S
authors.lastname: Bittner
authors.forename: Séverin
authors.initials: S
authors.lastname: Charpignon
authors.forename: David
authors.initials: D
authors.lastname: Ulbricht
authors.forename: Joseph
authors.initials: J
authors.lastname: Lautru
authors.forename: Igor
authors.initials: I
authors.lastname: Denisyuk
authors.forename: Joseph
authors.initials: J
authors.lastname: Zyss
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Perry
authors.forename: Melanie
authors.initials: M
authors.lastname: Lebental