title: Room temperature continuous-wave lasing in photonic crystal nanocavity.
abstract: We demonstrate room temperature continuous-wave laser operation at 1.3 mum in a photonic crystal nanocavity with InAs/GaAs self-assembled quantum dots by optical pumping. By analyzing a coupled rate equation and the experimental light-light characteristic plot, we evaluate the spontaneous emission coupling factor of the laser to be ~ 0.22. Three-dimensional carrier confinement and a low transparent carrier density due to volume effect in a quantum dot system play important roles in the cw laser operation at room temperature as well as a high quality factor photonic crystal nanocavity.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nomura
authors.forename: Satoshi
authors.initials: S
authors.lastname: Iwamoto
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Watanabe
authors.forename: Naoto
authors.initials: N
authors.lastname: Kumagai
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Nakata
authors.forename: Satomi
authors.initials: S
authors.lastname: Ishida
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Arakawa