Optical activity produced by layer chirality in bent-core liquid crystals

被引：22

作者：

Hough, Loren E. ^{[1
]}

Zhu, Chenhui

Nakata, Michi

Chattham, Nattaporn

Dantlgraber, Gert

Tschierske, Carsten

Clark, Noel A.

机构：

[1] Univ Colorado, Dept Phys, LCMRC, Boulder, CO 80309 USA

[2] Kasetsart Univ, Fac Sci, Dept Phys, Bangkok 10900, Thailand

[3] Univ Halle Wittenberg, Inst Organ Chem, D-4010 Halle, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.98.037802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Large optical activity has recently been observed in chiral smectic liquid crystalline phases formed from achiral bent-core molecules. The origin of the optical activity remains unclear and has been attributed to both a helical superstructure and the layer chirality produced by simultaneous tilt and polar ordering of bent-core mesogens in the B2 phase. Here, we directly demonstrate that layer chirality produces optical activity in the well ordered SmCAPA subphase.

引用

页数：4

共 20 条

[1] OPTICAL-ACTIVITY OF CHOLESTERIC LIQUID-CRYSTALS IN THE PRE-TRANSITIONAL REGIME AND IN THE BLUE PHASE
BENSIMON, D
DOMANY, E
SHTRIKMAN, S
[J]. PHYSICAL REVIEW A, 1983, 28 (01): : 427 - 433
[2] PRETRANSITIONAL OPTICAL-ROTATION IN ISOTROPIC PHASE OF CHOLESTERIC LIQUID-CRYSTALS
CHENG, J
MEYER, RB
[J]. PHYSICAL REVIEW LETTERS, 1972, 29 (18) : 1240 - &
[3] OPTICAL-ROTATORY DISPERSION MEASUREMENTS IN THE 3RD CHOLESTERIC BLUE PHASE
COLLINGS, PJ
[J]. PHYSICAL REVIEW A, 1984, 30 (04): : 1990 - 1993
[4] Solution of the dark state problem in antiferroelectric liquid crystal displays
D'havé, K
Rudquist, P
Lagerwall, ST
Pauwels, H
Drzewinski, W
Dabrowski, R
[J]. APPLIED PHYSICS LETTERS, 2000, 76 (24) : 3528 - 3530
[5] Antiferroelectric switchable mesophases of nonchiral bent-core liquid crystals containing fluorinated central cores
Dantlgraber, G
Shen, D
Diele, S
Tschierske, C
[J]. CHEMISTRY OF MATERIALS, 2002, 14 (03) : 1149 - 1158
[6] Dantlgraber G, 2002, ANGEW CHEM INT EDIT, V41, P2408, DOI 10.1002/1521-3773(20020703)41:13<2408::AID-ANIE2408>3.0.CO
[7] 2-M
[8] ROTATORY POWER AND OTHER OPTICAL PROPERTIES OF CERTAIN LIQUID CRYSTALS
DEVRIES, H
[J]. ACTA CRYSTALLOGRAPHICA, 1951, 4 (03): : 219 - 226
[9] DOLGANOV VK, 1980, ZH EKSP TEOR FIZ, V51, P1177
[10] Special phase matching of second-harmonic generation in helical ferroelectric liquid crystal cells
Hoshi, H
Chung, DH
Ishikawa, K
Takezoe, H
[J]. PHYSICAL REVIEW E, 2001, 63 (05): : 566101 - 566101

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