Wide defect in a Resonantly Absorbing Bragg Grating as a nonlinear microresonator for polaritons

Details Wide defect in a Resonantly Absorbing Bragg Grating as a nonlinear microresonator for polaritons Wide defect in a Resonantly Absorbing Bragg Grating as a nonlinear microresonator for polaritons

2007-07-07

arxiv.org/abs/0707.1114v1

Nonlinear Sciences

Pattern Formation and Solitons

6 figures

Scientific paper

The nonlinear polariton transmission, reflection and trapping by a defect in the resonantly absorbing Bragg grating (RABG) is demonstrated in numerical simulation. It is shown that the wide defect under some conditions could effectively serve as microresonator for polaritonic wave storage. The three types of the defect such as microcavity, groove and stripe are considered. Capture the electromagnetic field inside the microcavity (with no resonant nanoparticles) placed in the RABG is observed, as well as stuck of trapped polarization modes to the defect edges for the groove (defect span with reduced density of nanoparticles) and for the stripe with relatively increased density. Strong radiation reflection and adhered propagation of the polarization mode along the first edge of the stripe with high density of resonant atoms is exhibited by numerical computation.

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