title: Photonic molecule lasing.
abstract: Lasing at resonantly coupled whispering-gallery mode frequencies is observed in photonic molecules consisting of bispheres of 4.2 and 5.1 microm in diameter placed in a silicon V-groove. We examine spatial profiles of photonic molecule modes by use of frequency-resolved imaging and reveal bonding and antibonding mode features. From the lasing threshold characteristics, we quantitatively measure the quality factor and the spontaneous-emission coupling ratio of the photonic molecule modes and confirm that strong coherent coupling leads to photonic molecule modes.
authors.affiliation: Department of Applied Physics, University of Tokyo, Tokyo, Japan.
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Hara
authors.forename: Takashi
authors.initials: T
authors.lastname: Mukaiyama
authors.forename: Kenji
authors.initials: K
authors.lastname: Takeda
authors.forename: Makoto
authors.initials: M
authors.lastname: Kuwata-Gonokami