Modification of cubic susceptibility tensor in birefringent porous silicon

✍ Scribed by Zabotnov, Stanislav V. ;Konorov, Stanislav O. ;Golovan, Leonid A. ;Fedotov, Andrei B. ;Timoshenko, Victor Yu. ;Zheltikov, Aleksei M. ;Kashkarov, Pavel K.

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 159 KB
• Volume: 202
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200461220

✦ Synopsis

Abstract

Polarization‐sensitive third‐harmonic generation in birefringent (110) porous silicon layers reveals a modification in the cubic susceptibility tensor of silicon caused by strongly anisotropic pores. The ratio $ (\chi _{1111} ^{(3)} + \chi _{1122} ^{(3)} / \chi _{3333} ^{(3)}) $ of cubic susceptibility tensor components for the porous layers is shown to be 40% higher than this ratio for crystalline silicon. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)