Nanosecond liquid crystalline optical modulator
Abstract
An optical modulator includes a liquid crystal cell containing liquid crystal material having liquid crystal molecules oriented along a quiescent director direction in the unbiased state, and a voltage source configured to apply an electric field to the liquid crystal material wherein the direction of the applied electric field does not cause the quiescent director direction to change. An optical source is arranged to transmit light through or reflect light off the liquid crystal cell with the light passing through the liquid crystal material at an angle effective to undergo phase retardation in response to the voltage source applying the electric field. The liquid crystal material may have negative dielectric anisotropy, and the voltage source configured to apply an electric field to the liquid crystal material whose electric field vector is transverse to the quiescent director direction. Alternatively, the liquid crystal material may have positive dielectric anisotropy and the voltage source configured to apply an electric field to the liquid crystal material whose electric field vector is parallel with the quiescent director direction.
- Inventors:
- Issue Date:
- Research Org.:
- Kent State Univ., Kent, OH (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1273280
- Patent Number(s):
- 9400412
- Application Number:
- 14/332,502
- Assignee:
- KENT STATE UNIVERSITY (Kent, OH)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- DOE Contract Number:
- FG02-06ER46331
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Jul 16
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Borshch, Volodymyr, Shiyanovskii, Sergij V., and Lavrentovich, Oleg D. Nanosecond liquid crystalline optical modulator. United States: N. p., 2016.
Web.
Borshch, Volodymyr, Shiyanovskii, Sergij V., & Lavrentovich, Oleg D. Nanosecond liquid crystalline optical modulator. United States.
Borshch, Volodymyr, Shiyanovskii, Sergij V., and Lavrentovich, Oleg D. Tue .
"Nanosecond liquid crystalline optical modulator". United States. https://www.osti.gov/servlets/purl/1273280.
@article{osti_1273280,
title = {Nanosecond liquid crystalline optical modulator},
author = {Borshch, Volodymyr and Shiyanovskii, Sergij V. and Lavrentovich, Oleg D.},
abstractNote = {An optical modulator includes a liquid crystal cell containing liquid crystal material having liquid crystal molecules oriented along a quiescent director direction in the unbiased state, and a voltage source configured to apply an electric field to the liquid crystal material wherein the direction of the applied electric field does not cause the quiescent director direction to change. An optical source is arranged to transmit light through or reflect light off the liquid crystal cell with the light passing through the liquid crystal material at an angle effective to undergo phase retardation in response to the voltage source applying the electric field. The liquid crystal material may have negative dielectric anisotropy, and the voltage source configured to apply an electric field to the liquid crystal material whose electric field vector is transverse to the quiescent director direction. Alternatively, the liquid crystal material may have positive dielectric anisotropy and the voltage source configured to apply an electric field to the liquid crystal material whose electric field vector is parallel with the quiescent director direction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 26 00:00:00 EDT 2016},
month = {Tue Jul 26 00:00:00 EDT 2016}
}
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