Smectic-A-filled birefringent elements and fast switching twisted dual-frequency nematic cells used for digital light deflection | Zendy

Oleg Pishnyak | Zendy; Andrii B. Golovin | Zendy; Liubov Kreminska | Zendy; John J. Pouch | Zendy; Félix A. Miranda | Zendy; Bruce K. Winker | Zendy; Oleg D. Lavrentovich | Zendy

Open Access

Smectic-A-filled birefringent elements and fast switching twisted dual-frequency nematic cells used for digital light deflection

Author(s) -

Oleg Pishnyak,

Andrii B. Golovin,

Liubov Kreminska,

John J. Pouch,

Félix A. Miranda,

Bruce K. Winker,

Oleg D. Lavrentovich

Publication year - 2006

Publication title -

optical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.357

H-Index - 105

eISSN - 1560-2303

pISSN - 0091-3286

DOI - 10.1117/1.2192520

Subject(s) - liquid crystal , optics , birefringence , materials science , sma* , deflection (physics) , polarization (electrochemistry) , polarizer , light beam , beam (structure) , optoelectronics , physics , chemistry , mathematics , combinatorics

We describe the application of smectic A SmA liquid crystals for beam deflection. SmA materials can be used in digital beam deflec- tors DBDs as fillers for passive birefringent prisms. SmA prisms have high birefringence and can be constructed in a variety of shapes, includ- ing single prisms and prismatic blazed gratings of different angles and profiles. We address the challenges of uniform alignment of SmA, such as elimination of focal conic domains. Fast rotation of the incident light polarization in DBDs is achieved by an electrically switched 90-deg twisted nematic TN cell. © 2006 Society of Photo-Optical Instrumentation

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