High-speed analog achromatic intensity modulator.
نویسندگان
چکیده
We report what is to our knowledge the first implementation of a broadband analog intensity modulator composed of two chiral smectic liquid-crystal half-wave retarders. A reflection-mode intensity modulator employing a single active device has also demonstrated achromatic transmission. A quantitative theory for chromatic compensation is presented. By optimum selection of liquid-crystal retardance and orientation, intensity transmission is uniform throughout the visible. The chiral smectic liquid-crystal devices used in the implementation are capable of switching in less than 20 micros.
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عنوان ژورنال:
- Optics letters
دوره 19 10 شماره
صفحات -
تاریخ انتشار 1994