Abstract:
The dynamics of photonic wavepacket in the effective oscillator potential is studied. The oscillator potential is constructed on a base of one dimensional photonic crystal with a period of unit cell adiabatically varied in space. The structure has a locally equidistant discrete spectrum. This leads to an echo effect, i.e. the periodical reconstruction of the packet shape. The effect can be observed in a nonlinear response of the system. Numerical estimations for porous-silicon based structures are presented for femtosecond Ti:Sapphire laser pump.
Citation:
A. E. Antipov, A. N. Rubtsov, “Optical echo in photonic crystals”, Pis'ma v Zh. Èksper. Teoret. Fiz., 85:3 (2007), 188–191; JETP Letters, 85:3 (2007), 156–159