Polaritonic resonances in 2D silicon photonic crystals

Lyudmyla Karachevtseva; Alexander Glushko; Vitaliy Ivanov; Mikola Karas'; Volodymyr Onishchenko

doi:10.1117/12.722017

17 May 2007 Polaritonic resonances in 2D silicon photonic crystals

Lyudmyla Karachevtseva, Alexander Glushko, Vitaliy Ivanov, Mikola Karas', Volodymyr Onishchenko

Proceedings Volume 6588, Photonic Crystal Fibers; 65880X (2007) https://doi.org/10.1117/12.722017
Event: International Congress on Optics and Optoelectronics, 2007, Prague, Czech Republic

Abstract

Polaritonic resonancies are investigated in 2D silicon photonic crystals. Theoretically unpredicted reduction in the transmittance of electromagnetic radiation and the step formation are observed for wavelengths less than optical period of structures due to directed and decay optical modes formed by macroporous silicon as a short waveguide structure. Prevalence of absorption over reflection of light testify to the polaritonic type band formation. Surface polaritons are formed on decay modes in a silicon matrix or macropore at formation of directed optical modes relatively on macropore or silicon matrix. Absorption, photoconductivity and Raman scattering maxima are determined by a corresponding maximum of a longitudinal component of electromagnetic waves in macroporous silicon structure as short waveguide with a specific surface. Longitudinal component of electromagnetic waves in investigated structure interacts effectively with surface oscillators, and polaritonic resonances in 2D silicon photonic crystals are observed.

Citation Download Citation

Lyudmyla Karachevtseva, Alexander Glushko, Vitaliy Ivanov, Mikola Karas', and Volodymyr Onishchenko "Polaritonic resonances in 2D silicon photonic crystals", Proc. SPIE 6588, Photonic Crystal Fibers, 65880X (17 May 2007); https://doi.org/10.1117/12.722017

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