Abstract
Spatial solitons in periodic semiconductor-dielectric structures have been the subject of intense research over the past decade [1]. Recent progress with fabrication of nano-structures for photonics applications has stimulated research into light trapping and guiding on the sub-wavelength scale. For such nano-scale periodic structures the concept of evanescently coupled waveguides, largely used for analysis of various nonlinear phenomena in conventional periodic structures [1], is invalidated. In this work we develop theory and analyze existence and stability of spatial solitons in one-dimensional semiconductor-dielectric nano-structures: thin semiconductor layers embedded into a dielectric with much lower index of refraction. The analysis is done within full vector nonlinear stationary Maxwell equations:
© 2009 IEEE
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