title: Experimental demonstration of coherent perfect absorption in a silicon photonic racetrack resonator.
abstract: We present the first experimental demonstration of coherent perfect absorption (CPA) in an integrated device using a silicon racetrack resonator at telecommunication wavelengths. Absorption in the racetrack is achieved by Si+-ion-implantation, allowing for phase controllable amplitude modulation at the resonant wavelength. The device is measured to have an extinction of 24.5 dB and a quality-factor exceeding 3000. Our results will enable integrated CPA devices for data modulation and detection.
authors.forename: Jacob M
authors.initials: JM
authors.lastname: Rothenberg
authors.forename: Christine P
authors.initials: CP
authors.lastname: Chen
authors.forename: Jason J
authors.initials: JJ
authors.lastname: Ackert
authors.forename: Jerry I
authors.initials: JI
authors.lastname: Dadap
authors.forename: Andrew P
authors.initials: AP
authors.lastname: Knights
authors.forename: Keren
authors.initials: K
authors.lastname: Bergman
authors.forename: Richard M
authors.initials: RM
authors.lastname: Osgood
authors.forename: Richard R
authors.initials: RR
authors.lastname: Grote