Two-dimensional tunable photonic crystal formed in a liquid-crystal/polymer composite: Threshold behavior and morphology

被引：63

作者：

Escuti, MJ ^{[1
]}

Qi, J

Crawford, GP

机构：

[1] Brown Univ, Div Engn, Providence, RI 02912 USA

[2] Brown Univ, Dept Phys, Providence, RI 02912 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 07期

关键词：

D O I：

10.1063/1.1600533

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A two-dimensional (2D) transverse square lattice is formed using holographic methods in a liquid-crystal/polymer composite through a photoinduced diffusion process. The polymer morphology is investigated using scanning electron microscopy. The kinetics of formation is described within the framework of a 2D diffusion model, and a simple phenomenological description captures the nature of the Freedericksz transition, allowing the estimation of the surface anchoring strength Wapproximate to3x10(-4) J/m(2). (C) 2003 American Institute of Physics.

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页码：1331 / 1333

页数：3

相关论文

共 24 条

[1] Photonic band gaps and holography [J].

Berger, V ;

GauthierLafaye, O ;

Costard, E .

JOURNAL OF APPLIED PHYSICS, 1997, 82 (01) :60-64

[2]

Born M., 1999, PRINCIPLES OPTICS, P838

[3] Diffusion kinetics of formation of holographic polymer-dispersed liquid crystal display materials [J].

Bowley, CC ;

Crawford, GP .

APPLIED PHYSICS LETTERS, 2000, 76 (16) :2235-2237

[4] Multiple gratings simultaneously formed in holographic polymer-dispersed liquid-crystal displays [J].

Bowley, CC ;

Fontecchio, AK ;

Crawford, GP ;

Lin, JJ ;

Li, L ;

Faris, S .

APPLIED PHYSICS LETTERS, 2000, 76 (05) :523-525

[5] Liquid-crystal photonic-band-gap materials: The tunable electromagnetic vacuum [J].

Busch, K ;

John, S .

PHYSICAL REVIEW LETTERS, 1999, 83 (05) :967-970

[6] All fourteen Bravais lattices can be formed by interference of four noncoplanar beams [J].

Cai, LZ ;

Yang, XL ;

Wang, YR .

OPTICS LETTERS, 2002, 27 (11) :900-902

[7] Fabrication of photonic crystals for the visible spectrum by holographic lithography [J].

Campbell, M ;

Sharp, DN ;

Harrison, MT ;

Denning, RG ;

Turberfield, AJ .

NATURE, 2000, 404 (6773) :53-56

[8] Tunable face-centered-cubic photonic crystal formed in holographic polymer dispersed liquid crystals [J].

Escuti, MJ ;

Qi, J ;

Crawford, GP .

OPTICS LETTERS, 2003, 28 (07) :522-524

[9]

Escuti MJ, 2002, MATER RES SOC SYMP P, V709, P293

[10] In- and out-of-plane propagation of electromagnetic waves in low index contrast two dimensional photonic crystals [J].

Foteinopoulou, S ;

Rosenberg, A ;

Sigalas, MM ;

Soukoulis, CM .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (02) :824-830