Separation of optical anisotropies by angular dependent reflection anisotropy spectroscopy

被引：21

作者：

Macdonald, BF

Cole, RJ ^{[1
]}

机构：

[1] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[2] Univ Edinburgh, Ctr Mat Sci & Engn, Edinburgh EH9 3JZ, Midlothian, Scotland

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 19期

关键词：

D O I：

10.1063/1.1478784

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Double rubbing of polymer films, which finds applications in modern liquid crystal devices, has been investigated using reflection anisotropy spectroscopy (RAS) and atomic force microscopy. A method of gauging the relative strength of rubbing in two different directions, based upon the dependence of observed RAS signals on the sample azimuthal angle, has been found. Angular dependent measurements are shown to be a useful extension of the standard technique by allowing angular dependent sources of optical anisotropy to be separated experimentally. (C) 2002 American Institute of Physics.

引用

收藏

页码：3527 / 3529

页数：3

相关论文

共 12 条

[1] REFLECTANCE-DIFFERENCE SPECTROSCOPY SYSTEM FOR REAL-TIME MEASUREMENTS OF CRYSTAL-GROWTH [J].

ASPNES, DE ;

HARBISON, JP ;

STUDNA, AA ;

FLOREZ, LT .

APPLIED PHYSICS LETTERS, 1988, 52 (12) :957-959

[2]

Azzam R M A, 1987, ELLIPSOMETRY POLARIS

[3] In situ observation of stress relaxation in CdTe/ZnTe heterostructures by reflectance-difference spectroscopy [J].

Balderas-Navarro, RE ;

Hingerl, K ;

Bonanni, A ;

Sitter, H ;

Stifter, D .

APPLIED PHYSICS LETTERS, 2001, 78 (23) :3615-3617

[4] Atomic-beam alignment of inorganic materials for liquid-crystal displays [J].

Chaudhari, P ;

Lacey, J ;

Doyle, J ;

Galligan, E ;

Lien, SCA ;

Callegari, A ;

Hougham, G ;

Lang, ND ;

Andry, PS ;

John, R ;

Yang, KH ;

Lu, MH ;

Cai, C ;

Speidell, J ;

Purushothaman, S ;

Ritsko, J ;

Samant, M ;

Stöhr, J ;

Nakagawa, Y ;

Katoh, Y ;

Saitoh, Y ;

Sakai, K ;

Satoh, H ;

Odahara, S ;

Nakano, H ;

Nakagaki, J ;

Shiota, Y .

NATURE, 2001, 411 (6833) :56-59

[5] Visualization of rubbing nonuniformity by double surface treatments of polyimide-coated substrate for liquid crystal alignment [J].

Chung, DH ;

Takanishi, Y ;

Ishikawa, K ;

Takezoe, H ;

Park, B .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2001, 40 (3A) :1342-1344

[6] Optical anisotropy of Langmuir-Blodgett sapphyrin films [J].

Di Natale, C ;

Goletti, C ;

Paolesse, R ;

Della Sala, F ;

Drago, M ;

Chiaradia, P ;

Lugli, P ;

D'Amico, A .

APPLIED PHYSICS LETTERS, 2000, 77 (20) :3164-3166

[7] Adsorbate azimuthal orientation from reflectance anisotropy spectroscopy [J].

Frederick, BG ;

Power, JR ;

Cole, RJ ;

Perry, CC ;

Chen, Q ;

Haq, S ;

Bertrams, T ;

Richardson, NV ;

Weightman, P .

PHYSICAL REVIEW LETTERS, 1998, 80 (20) :4490-4493

[8] Study of local stress, morphology, and liquid-crystal alignment on buffed polyimide surfaces [J].

Kikuchi, H ;

Logan, JA ;

Yoon, DY .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (09) :6811-6817

[9] Effect of multidirection rubbing on the alignment of nematic liquid crystal [J].

Kim, YJ ;

Zhuang, Z ;

Patel, JS .

APPLIED PHYSICS LETTERS, 2000, 77 (04) :513-515

[10] History-dependent orientational order of rubbed polyimide for liquid-crystal alignment [J].

Mahajan, MP ;

Rosenblatt, C .

APPLIED PHYSICS LETTERS, 1999, 75 (23) :3623-3625