Liquid crystal optical phase plate with a variable in-plane gradient
We propose a nematic liquid crystal (LC) optical phase plate, with a large continuous in-plane gradient that is variable, and its application to a beam steering device with high efficiency. The device is a vertically aligned, continuous phase, optical phased array (V-COPA) that uses a negative diele...
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| Veröffentlicht in: | Journal of applied physics 2008-08, Vol.104 (3), p.033109-033109-7 |
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| container_end_page | 033109-7 |
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| container_issue | 3 |
| container_start_page | 033109 |
| container_title | Journal of applied physics |
| container_volume | 104 |
| creator | Shi, Lei McManamon, Paul F. Bos, Philip J. |
| description | We propose a nematic liquid crystal (LC) optical phase plate, with a large continuous in-plane gradient that is variable, and its application to a beam steering device with high efficiency. The device is a vertically aligned, continuous phase, optical phased array (V-COPA) that uses a negative dielectric anisotropy LC material. High steering efficiency of over 95% is demonstrated by modeling the LC director field and its effect on transmitted light. The period of the V-COPA grating can be varied by adjusting an applied voltage profile, which allows for continuous angular control of the diffraction angle. |
| doi_str_mv | 10.1063/1.2966300 |
| format | Article |
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The device is a vertically aligned, continuous phase, optical phased array (V-COPA) that uses a negative dielectric anisotropy LC material. High steering efficiency of over 95% is demonstrated by modeling the LC director field and its effect on transmitted light. The period of the V-COPA grating can be varied by adjusting an applied voltage profile, which allows for continuous angular control of the diffraction angle.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.2966300</doi></addata></record> |
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| identifier | ISSN: 0021-8979 |
| ispartof | Journal of applied physics, 2008-08, Vol.104 (3), p.033109-033109-7 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_2966300 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| title | Liquid crystal optical phase plate with a variable in-plane gradient |
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