By coupled mode theory in the time domain and a finite-difference time-domain code, we investigate wavelength shifting and frequency conversion via four-wave mixing inside a photonic crystal wire in an isotropic Kerr material. The three-dimensional time-resolved analysis yields ultrafast and all-optically tunable frequency conversion of a signal/channel about the pump frequency. (C) 2004 American Institute of Physics.
Di Falco, A., Conti, C., Assanto, G. (2004). Wavelength shifting in photonic bandgap microcavities with isotropic media. APPLIED PHYSICS LETTERS, 85(20), 4585-4587 [10.1063/1.1823036].