Smectic A Filled Birefringent Elements and Fast Switching Twisted Dual Frequency Nematic Cells Used for Digital Light Deflection (Paperback) (ISBN-13: 9781289236922)

We describe the application of smectic A (SmA) liquid crystals for beam deflection. SmA materials can be used in digital beam deflectors (DBDs) as fillers for passive birefringent prisms. SmA prisms have high birefringence and can be constructed in a variety of shapes, including 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 twisted nematic (TN) cell.

Author: Nasa Technical Reports Server (Ntrs),Oleg Pishnyak
ISBN-10: 1289236925
ISBN-13: 9781289236922
Publisher: Bibliogov
Language: English
Published: 07/23/2013
Pages: 24
Format: Paperback
Weight: 0.14lbs
Size: 9.69h x 7.44w x 0.05d