Alignment of liquid crystal E7 in composite photonic crystals based on single crystal silicon
Citation:
A. D. Remenyuk, E. V. Astrova, R. F. Vitman, T. S. Perova, and V. A. Tolmachev, Alignment of liquid crystal E7 in composite photonic crystals based on single crystal silicon, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks, Dublin, Ireland, Monday 04 April 2005, ohn G. McInerney, Gerard Farrell, David M. Denieffe, Liam P. Barry, Harold S. Gamble, Padraig J. Hughes, Alan Moore, 5825, SPIE, 2005, 400-408Download Item:
Abstract:
The orientation of nematic liquid crystal (LC) E7 on the surface of (111) silicon wafers and in the channels of grooved
silicon structure has been investigated. Grooved Si is a periodical structure obtained by wet anisotropic etching of deep
and narrow grooves in (110) Si using an alkaline solution. This structure can serve as a one-dimensional (1D) photonic
crystal. Composite structures obtained from grooved Si infiltrated by LC are promising candidates for electro-optic
application. LC E7 was infiltrated into the channels of grooved Si and into the bulk Si cells. IR spectroscopy and
capacitance-voltage characteristics under DC electric field were applied to investigate LC orientation. It is shown that
the E7 liquid crystal in grooved silicon exhibits a weak planar orientation with respect to the silicon walls.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
Author's Homepage:
http://people.tcd.ie/perovatDescription:
PUBLISHEDDublin, Ireland
Author: PEROVA, TANIA
Sponsor:
Science Foundation Ireland (SFI)Other Titles:
Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical NetworksPublisher:
SPIEType of material:
PosterSeries/Report no:
5825Availability:
Full text availableKeywords:
1D photonic crystals, Silicon, liquid crystals, infrared spectroscopyDOI:
http://dx.doi.org/10.1117/12.605432Metadata
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