期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 19, 期 13-16, 页码 1090-1092出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2007.900055
关键词
adaptive optics; beam steering; dielectric elastomer actuator (DEA); diffraction; tunable grating
A technology for the implementation of electrically tunable optical elements is presented. We illustrate, on the example of a transmission grating (TG), that dielectric elastomer actuators can be used to continuously adjust the properties of diffractive optical elements. The demonstrated TG operates with high transmission, low optical distortion ( 93 kW/cm(2)), is polarization-independent, and achieves a very large tuning range (7.5% grating period compression). Extending the presented technology to other optical elements, including lenses, phase shifters, or intensity filters, is expected to result in a wide range of electrically tunable optical devices.
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