title: Injection-seeded optoplasmonic amplifier in the visible.
abstract: A hybrid optoplasmonic amplifier, injection-seeded by an internally-generated Raman signal and operating in the visible (563-675 nm), is proposed and evidence for amplification is presented. Comprising a gain medium tethered to a whispering gallery mode (WGM) resonator with a protein, and a plasmonic surface, the optical system described here selectively amplifies a single (or a few) Raman line(s) produced within the WGM resonator and is well-suited for routing narrowband optical power on-a-chip. Over the past five decades, optical oscillators and amplifiers have typically been based on the buildup of the field from the spontaneous emission background. Doing so limits the temporal coherence of the output, lengthens the time required for the optical field intensity to reach saturation, and often is responsible for complex, multiline spectra. In addition to the spectral control afforded by injection-locking, the effective Q of the amplifier can be specified by the bandwidth of the injected Raman signal. This characteristic contrasts with previous WGM-based lasers and amplifiers for which the Q is determined solely by the WGM resonator.
authors.affiliation: 1] Department of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [2] Micro and Nano Technology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Manas Ranjan
authors.initials: MR
authors.lastname: Gartia
authors.affiliation: 1] Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [2] Micro and Nano Technology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Sujin
authors.initials: S
authors.lastname: Seo
authors.affiliation: Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Junhwan
authors.initials: J
authors.lastname: Kim
authors.affiliation: 1] Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [2] Micro and Nano Technology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Te-Wei
authors.initials: TW
authors.lastname: Chang
authors.affiliation: 1] Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [2] Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [3] Micro and Nano Technology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Gaurav
authors.initials: G
authors.lastname: Bahl
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
authors.forename: Meng
authors.initials: M
authors.lastname: Lu
authors.affiliation: 1] Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [2] Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [3] Micro and Nano Technology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Gang Logan
authors.initials: GL
authors.lastname: Liu
authors.affiliation: 1] Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [2] Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA [3] Micro and Nano Technology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: J Gary
authors.initials: JG
authors.lastname: Eden