Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells
Dual-frequency hybrid-aligned nematic liquid crystal cells and the influence of the parameters of a control electric field on their optical response are studied. It is found that the harmonic oscillations of the optical transmission in such cells are observed in the interval between low frequency-to...
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| Veröffentlicht in: | Technical physics 2012-05, Vol.57 (5), p.644-648 |
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| creator | Konshina, E. A. Vakulin, D. A. Ivanova, N. L. Gavrish, E. O. Vasil’ev, V. N. |
| description | Dual-frequency hybrid-aligned nematic liquid crystal cells and the influence of the parameters of a control electric field on their optical response are studied. It is found that the harmonic oscillations of the optical transmission in such cells are observed in the interval between low frequency-to-high frequency voltage switchings unlike in conventional twisted nematic cells. A
V
-shaped bistable optical response is obtained by successively applying sinusoidal electric fields with frequencies of 1 and 30 kHz to a twisted nematic cell. For a liquid crystal layer 8 μm thick and an applied voltage of 50 V, the response time is 10 ms. In a hybrid-aligned twisted-nematic cell with a large initial tilt angle of the director (about 70°), the
V
-shaped optical response is observed when the inclined homeotropic state is switched to the twisted state by applying a 30-kHz field. The initial structure of the layer recovers as a result of natural elastic relaxation, and the response time increases roughly fourfold. |
| doi_str_mv | 10.1134/S1063784212050179 |
| format | Article |
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V
-shaped bistable optical response is obtained by successively applying sinusoidal electric fields with frequencies of 1 and 30 kHz to a twisted nematic cell. For a liquid crystal layer 8 μm thick and an applied voltage of 50 V, the response time is 10 ms. In a hybrid-aligned twisted-nematic cell with a large initial tilt angle of the director (about 70°), the
V
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V
-shaped bistable optical response is obtained by successively applying sinusoidal electric fields with frequencies of 1 and 30 kHz to a twisted nematic cell. For a liquid crystal layer 8 μm thick and an applied voltage of 50 V, the response time is 10 ms. In a hybrid-aligned twisted-nematic cell with a large initial tilt angle of the director (about 70°), the
V
-shaped optical response is observed when the inclined homeotropic state is switched to the twisted state by applying a 30-kHz field. The initial structure of the layer recovers as a result of natural elastic relaxation, and the response time increases roughly fourfold.</description><subject>Classical and Continuum Physics</subject><subject>Optics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Electronics</subject><issn>1063-7842</issn><issn>1090-6525</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kE1qwzAQhUVpoWnaA3TnCzgdybZkL0PoHxRSaLs2sjRKFWQ5keyFb1-FdFcos5hhZr4H7xFyT2FFaVE-fFDghahLRhlUQEVzQRYUGsh5xarL08yL_HS_Jjcx7gEorSu-IO_bw2iVdFnAeBh8xMyEoc_0JF1uAh4n9GrOvucuWJ1LZ3cedeaxl4nKnD1OVmcqzHFMEgqdi7fkykgX8e63L8nX0-Pn5iV_2z6_btZvuSqYGPOyKlBxrRClqVmywDs0uhIGVcdUsiIbCaLoAEzNTVNqYKLuZC06Dp1J9JKszro76bC13gxjkCqVxt6qwaOxab8uOIOmEs0JoGdAhSHGgKY9BNvLMLcU2lOG7Z8ME8POTEy_foeh3Q9T8MnXP9APUVF0ig</recordid><startdate>20120501</startdate><enddate>20120501</enddate><creator>Konshina, E. A.</creator><creator>Vakulin, D. A.</creator><creator>Ivanova, N. L.</creator><creator>Gavrish, E. O.</creator><creator>Vasil’ev, V. N.</creator><general>SP MAIK Nauka/Interperiodica</general><general>Springer</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20120501</creationdate><title>Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells</title><author>Konshina, E. A. ; Vakulin, D. A. ; Ivanova, N. L. ; Gavrish, E. O. ; Vasil’ev, V. N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-453ec6dceeaf821136befd57fecb2c637a9a073b00f86f94d0278ba87b60bf453</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Classical and Continuum Physics</topic><topic>Optics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Electronics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Konshina, E. A.</creatorcontrib><creatorcontrib>Vakulin, D. A.</creatorcontrib><creatorcontrib>Ivanova, N. L.</creatorcontrib><creatorcontrib>Gavrish, E. O.</creatorcontrib><creatorcontrib>Vasil’ev, V. N.</creatorcontrib><collection>CrossRef</collection><jtitle>Technical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Konshina, E. A.</au><au>Vakulin, D. A.</au><au>Ivanova, N. L.</au><au>Gavrish, E. O.</au><au>Vasil’ev, V. N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells</atitle><jtitle>Technical physics</jtitle><stitle>Tech. Phys</stitle><date>2012-05-01</date><risdate>2012</risdate><volume>57</volume><issue>5</issue><spage>644</spage><epage>648</epage><pages>644-648</pages><issn>1063-7842</issn><eissn>1090-6525</eissn><abstract>Dual-frequency hybrid-aligned nematic liquid crystal cells and the influence of the parameters of a control electric field on their optical response are studied. It is found that the harmonic oscillations of the optical transmission in such cells are observed in the interval between low frequency-to-high frequency voltage switchings unlike in conventional twisted nematic cells. A
V
-shaped bistable optical response is obtained by successively applying sinusoidal electric fields with frequencies of 1 and 30 kHz to a twisted nematic cell. For a liquid crystal layer 8 μm thick and an applied voltage of 50 V, the response time is 10 ms. In a hybrid-aligned twisted-nematic cell with a large initial tilt angle of the director (about 70°), the
V
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| title | Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells |
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