Polaritonic Resonances in 2D silicon photonic crystals

被引：0
|
作者：
Karachevtseva, Lyudmyla [1 ]
Glushko, Alexander [1 ]
Ivanov, Vitaliy [1 ]
Karas, Mikola [1 ]
Onischenko, Volodymyr [1 ]
机构：
[1] NAS Ukraine, V Lashkaryov Inst Semicond Phys, 41 Pr Nauki, UA-03028 Kiev, Ukraine
来源：
PHOTONIC CRYSTAL FIBERS | 2007年 / 6588卷
关键词：
2D silicon photonic crystals; photonic band; polaritonic resonances;
D O I：
10.1117/12.722017
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
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页数：11
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