title: Photoluminescence of self-assembled InAs quantum dots embedded in photonic crystal nanocavities with shifted air holes.
abstract: This study investigates the photoluminescence for self-assembled InAs quantum dots embedded in photonic crystal nanocavities as two of the air holes nearest the H1 cavity were shifted. A rapid decrease of resonant wavelength and quality factor for the cavity modes, in which the electric field patterns extended in the shifting direction, were found as the shift increased from 0.2 to 0.4 lattice constants. This phenomenon is interpreted as being caused by the formation of two point defects between the nearest and second nearest air holes.
authors.affiliation: Department of Physics and Center for Nano Science and Technology, National Central University, Jhong-li, 32001, Taiwan, Republic of China.
authors.forename: Wen-Yen
authors.initials: WY
authors.lastname: Chen
authors.forename: Hsiang-Szu
authors.initials: HS
authors.lastname: Chang
authors.forename: Chia-Han
authors.initials: CH
authors.lastname: Lin
authors.forename: Pei-Chin
authors.initials: PC
authors.lastname: Chiu
authors.forename: Chun-Jung
authors.initials: CJ
authors.lastname: Wang
authors.forename: Yen-Chun
authors.initials: YC
authors.lastname: Tseng
authors.forename: Jen-Inn
authors.initials: JI
authors.lastname: Chyi
authors.forename: Tzu Min
authors.initials: TM
authors.lastname: Hsu