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
Enhancement and inhibition of second-harmonic generation and absorption in a negative index cavity / De Ceglia, D.; D'Orazio, Antonella; De Sario, M.; Petruzzelli, Vincenzo; Prudenzano, Francesco; Centini, M.; Cappeddu, M. G.; Bloemer, M. J.; Scalora, M.. - 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
D'ORAZIO, Antonella;PETRUZZELLI, Vincenzo;PRUDENZANO, Francesco;
2007-01-01
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 efficiencyI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
