ELECTRO-OPTICAL EFFECT IN COMPOSITE PHOTONIC STRUCTURES BASED ON GROOVED SILICON AND LIQUID CRYSTAL-Reference-Cited by-同舟云学术

ELECTRO-OPTICAL EFFECT IN COMPOSITE PHOTONIC STRUCTURES BASED ON GROOVED SILICON AND LIQUID CRYSTAL

Published:2007-06 Issue:03n04 Volume:06 Page:179-185
ISSN:0219-581X
Container-title:International Journal of Nanoscience
language:en
Short-container-title:Int. J. Nanosci.

Author:

ASTROVA E. V.¹,PILYUGINA YU. A.¹,PEROVA T. S.²,GRUDINKIN S. A.²

Affiliation:

1. Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg 194021, Russia

2. Department of Electronic and Electrical Engineering, University of Dublin, Trinity College, Dublin 2, Ireland

Abstract

One-dimensional periodic structures with deep vertical grooves were obtained by wet anisotropic etching of (110)-oriented silicon-on-insulator (SOI) structure. Grooves of various widths (4–16 μm) were filled with a nematic liquid crystal (LC) E7. Inter-digital configuration of silicon electrodes was used to apply a voltage which altered the refractive index of the liquid crystal. Reproducible Freedericksz effect with a threshold voltage from 2 to 3 V was registered visually in the polarized light of a microscope and studied by means of micro-Raman spectroscopy. The electro-optical effect in the structures can be used to tune the band gaps of 1D photonic crystals, the spectral response of microcavities and to steer light beams in high contrast planar waveguides and waveguide arrays.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Computer Science Applications,Condensed Matter Physics,General Materials Science,Bioengineering,Biotechnology

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219581X07004547

Reference15 articles.

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