Enhancement and inhibition of second-harmonic generation and absorption in a negative index cavity.
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.
de Ceglia
Domenico
D
Dipartmento di Elettrotecnica ed Elettronica, Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy. deceglia@deemail.paliba.it
D'Orazio
Antonella
A
De Sario
Marco
M
Petruzzelli
Vincenzo
V
Prudenzano
Francesco
F
Centini
Marco
M
Cappeddu
Mirko G
MG
Bloemer
Mark J
MJ
Scalora
Michael
M