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. (c) 2007 Optical Society of America.
Enhancement and inhibition of second-harmonic generation and absorption in a negative index cavity / D. D., Ceglia; Antonella, D'Orazio; M. D., Sario; Vincenzo, Petruzzelli; Francesco, Prudenzano; Centini, Marco; Mirko G., Cappeddu; Mark J., Bloemer; Michael, Scalora. - In: OPTICS LETTERS. - ISSN 0146-9592. - 32:3(2007), pp. 265-267. [10.1364/ol.32.000265]
Enhancement and inhibition of second-harmonic generation and absorption in a negative index cavity
CENTINI, MARCO;
2007
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. (c) 2007 Optical Society of America.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
