共 3 条
Tunable liquid-crystal focusing device. 2. Experiment
被引:40
作者:
Kotova, S. P.
[1
]
Patlan, V. V.
[1
]
Samagin, S. A.
[1
]
机构:
[1] Russian Acad Sci, Samara Branch, PN Lebedev Phys Inst, Samara 443011, Russia
关键词:
liquid crystals;
spatial light modulators;
D O I:
10.1070/QE2011v041n01ABEH014407
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
The characteristics of a modal liquid-crystal focusing device are experimentally investigated in different control regimes. Phase delay distributions in the form of a circular truncated cone with a controlled position of the base centre are obtained. Focusing to a round spot with a controlled position of the focal point in the aperture area is implemented for the focusing device operation in the regime of a small modal parameter.
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页码:65 / 70
页数:6
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