title: Enhancement and inhibition of second-harmonic generation and absorption in a negative index cavity.
abstract: We study second-harmonic generation in a negative-index material cavity. The transmission spectrum shows a bandgap between the electric and magnetic plasma frequencies. The nonlinear process is made efficient by local phase-matching conditions between a forward-propagating pump and a backward-propagating second-harmonic signal. By simultaneously exciting the cavity with counterpropagating pulses, and by varying their relative phase difference, one is able to enhance or inhibit linear absorption and the second-harmonic conversion efficiency.
authors.affiliation: Dipartmento di Elettrotecnica ed Elettronica, Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy. deceglia@deemail.paliba.it
authors.forename: Domenico
authors.initials: D
authors.lastname: de Ceglia
authors.forename: Antonella
authors.initials: A
authors.lastname: D'Orazio
authors.forename: Marco
authors.initials: M
authors.lastname: De Sario
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Petruzzelli
authors.forename: Francesco
authors.initials: F
authors.lastname: Prudenzano
authors.forename: Marco
authors.initials: M
authors.lastname: Centini
authors.forename: Mirko G
authors.initials: MG
authors.lastname: Cappeddu
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Bloemer
authors.forename: Michael
authors.initials: M
authors.lastname: Scalora