Dynamic responses of photonic crystal microcavities in nonlinear media are analyzed via both a finite-difference code and coupled-mode theory in the time domain. Optical frequency generation in both second- and third-order nonlinear materials is demonstrated based on the transient evolution of cavity modes. Terahertz waves can be generated in quadratically nonlinear crystals by optical rectification, whereas state generation inside the band gap can be linked to a Rabi-like splitting in cubic media. An all-optical ultra-fast wavelength shifter is proposed. © Springer-Verlag 2005.
Transient-mode excitation, terahertz generation and wavelength shifting in a photonic band gap / A., Di Falco; Conti, Claudio; G., Assanto. - In: APPLIED PHYSICS. B, LASERS AND OPTICS. - ISSN 0946-2171. - STAMPA. - 81:2-3(2005), pp. 415-420. [10.1007/s00340-005-1885-3]
Transient-mode excitation, terahertz generation and wavelength shifting in a photonic band gap
CONTI, CLAUDIO;
2005
Abstract
Dynamic responses of photonic crystal microcavities in nonlinear media are analyzed via both a finite-difference code and coupled-mode theory in the time domain. Optical frequency generation in both second- and third-order nonlinear materials is demonstrated based on the transient evolution of cavity modes. Terahertz waves can be generated in quadratically nonlinear crystals by optical rectification, whereas state generation inside the band gap can be linked to a Rabi-like splitting in cubic media. An all-optical ultra-fast wavelength shifter is proposed. © Springer-Verlag 2005.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
