Zobrazeno 1 - 7
of 7
pro vyhledávání: '"R. D. Polak"'
Publikováno v:
Journal of Applied Physics. 86:4199-4213
We analyze the high-electric-field technique designed by Yokoyama and van Sprang [J. Appl. Phys. 57, 4520 (1985)] to determine the polar anchoring coefficient W of a nematic liquid crystal-solid substrate. The technique implies simultaneous measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc01ceda2f4b23b2628c31c2934a5f23
https://doi.org/10.1063/1.371347
https://doi.org/10.1063/1.371347
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 251:265-269
Nematic liquid crystals confined to cylindrical cavities, and polymer networks constrained by the presence of an oriented liquid crystal, are studied. Frank elastic theory is used to predict stable nematic structures and to calculate their correspond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23c7fd288e872b1067ca462b86b4e61e
https://doi.org/10.1080/10587259408027209
https://doi.org/10.1080/10587259408027209
Autor:
Liang-Chy Chien, R. D. Polak, Slobodan Zumer, A. Scharkowski, Joseph W. Doane, Gregory P. Crawford
Publikováno v:
Journal of Applied Physics. 75:1968-1971
The director‐field of a nematic liquid crystal droplet is captured by a polymer network. The anisotropic polymer network is formed by photopolymerizing a small amount of monomer (2 wt %) in a nematic solvent suspended in a glycerin matrix. The glyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e86b3184b4e6f88e88324d9a349e2a6
https://doi.org/10.1063/1.356319
https://doi.org/10.1063/1.356319
Publikováno v:
Physical Review E. 49:R978-R981
Nematic liquid crystals confined to supramicrometer capillary tubes with homeotropic anchoring conditions are studied using optical polarizing microscopy. The resulting microscopy textures are sensitive to the molecular anchoring strength ${\mathit{W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::301d29db029f292a773e66a547654f98
https://doi.org/10.1103/physreve.49.r978
https://doi.org/10.1103/physreve.49.r978
Publikováno v:
Applied Physics Letters. 75:202-204
The popular “high-electric-field” technique to determine the polar anchoring coefficient W of a nematic–substrate interface requires the simultaneous measurement of the capacitance and optical phase retardation of a liquid crystal cell as a fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e427bfbb4847de3ac71585a9e2ba21cd
https://doi.org/10.1063/1.124319
https://doi.org/10.1063/1.124319
Autor:
R. D. Polak, Slobodan Zumer, J. William Doane, Gregory P. Crawford, Liang-Chy Chien, A. Scharkowski
Publikováno v:
Liquid Crystal Materials, Devices, and Applications III.
Orientationally ordered polymer networks are prepared in spherical and cylindrical geometries by isothermal photopolymerization of diacrylate molecules dissolved in a nematic liquid crystal. Optical polarizing microscopy textures reveal that the netw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5382626b47930ca6238264f6db199605
https://doi.org/10.1117/12.172126
https://doi.org/10.1117/12.172126
Autor:
R. D. Polak, R. Klouda, Yu. A. Nastishin, V. G. Nazarenko, A. K. St. Clair, Oleg D. Lavrentovich
Publikováno v:
SID Symposium Digest of Technical Papers. 29:135
We have characterized a chemically imidized polyimide LARC-CP1 newly synthesized by NASA as a low-temperature-processing alignment material for liquid crystal displays. Using low-temperature boiling solvents, we havedeveloped a technique of cell coat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ddb52db34f204ee9187dd2bbfc50495
https://doi.org/10.1889/1.1833712
https://doi.org/10.1889/1.1833712