Bottom-up fabrication of photonic defect structures in cholesteric liquid crystals based on laser-assisted modification of the helix

被引：28

作者：

Yoshida, Hiroyuki ^{[1
]}

Lee, Chee Heng ^{[1
]}

Matsuhisa, Yuko ^{[1
]}

Fujii, Akihiko ^{[1
]}

Ozaki, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Dept Elect Elect & Informat Engn, Suita, Osaka 5650821, Japan

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 09期

关键词：

D O I：

10.1002/adma.200601753

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Controlled fabrication of defect structures is performed in cholesteric liquid crystals by a laser-assisted polymerization process that induces a local elongation of the helix (see figure). Low-threshold laser action is observed from the photonic defect-mode observed within the selective reflection band.

引用

页码：1187 / +

页数：5

共 21 条

[1] OPTICS IN STRATIFIED AND ANISOTROPIC MEDIA - 4X4-MATRIX FORMULATION [J].

BERREMAN, DW .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1972, 62 (04) :502-&

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

Busch, K ;

John, S .

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

[3] ROTATORY POWER AND OTHER OPTICAL PROPERTIES OF CERTAIN LIQUID CRYSTALS [J].

DEVRIES, H .

ACTA CRYSTALLOGRAPHICA, 1951, 4 (03) :219-226

[4] Photonic-bandgap microcavities in optical waveguides [J].

Foresi, JS ;

Villeneuve, PR ;

Ferrera, J ;

Thoen, ER ;

Steinmeyer, G ;

Fan, S ;

Joannopoulos, JD ;

Kimerling, LC ;

Smith, HI ;

Ippen, EP .

NATURE, 1997, 390 (6656) :143-145

[5] Discontinuous shift of lasing wavelength with temperature in cholesteric liquid crystal [J].

Funamoto, K ;

Ozaki, M ;

Yoshino, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2003, 42 (12B) :L1523-L1525

[6] Electro-tunable optical diode based on photonic bandgap liquid-crystal heterojunctions [J].

Hwang, J ;

Song, MH ;

Park, B ;

Nishimura, S ;

Toyooka, T ;

Wu, JW ;

Takanishi, Y ;

Ishikawa, K ;

Takezoe, H .

NATURE MATERIALS, 2005, 4 (05) :383-387

[7] STRONG LOCALIZATION OF PHOTONS IN CERTAIN DISORDERED DIELECTRIC SUPERLATTICES [J].

JOHN, S .

PHYSICAL REVIEW LETTERS, 1987, 58 (23) :2486-2489

[8] Photonic band cap guidance in optical fibers [J].

Knight, JC ;

Broeng, J ;

Birks, TA ;

Russel, PSJ .

SCIENCE, 1998, 282 (5393) :1476-1478

[9] Twist defect in chiral photonic structures [J].

Kopp, VI ;

Genack, AZ .

PHYSICAL REVIEW LETTERS, 2002, 89 (03) :339011-339014

[10] Low-threshold lasing at the edge of a photonic stop band in cholesteric liquid crystals [J].

Kopp, VI ;

Fan, B ;

Vithana, HKM ;

Genack, AZ .

OPTICS LETTERS, 1998, 23 (21) :1707-1709

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