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Analog low-loss ful...
Analog low-loss full-range phase modulation by utilizing a V-shaped switched ferroelectric liquid-crystal cell in reflective mode
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- Engström, David, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Rudquist, Per, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bengtsson, Jörgen, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa fler...
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- D'Havé, Koen, 1972 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Galt, Sheila, 1956 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa färre...
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(creator_code:org_t)
- 2006
- 2006
- Engelska.
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Ingår i: Optics Letters. - 0146-9592 .- 1539-4794. ; 31:19, s. 2906-2908
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- We have studied the analog (V-shaped switching) mode in ferroelectric liquid crystals in reflective mode for analog phase modulation applications. We have found that several combinations of cell thicknesses and input polarization states exist for which near-lossless analog phase modulation with a range of ~2π rad is obtained, and we demonstrate one such combination experimentally. Despite a slight deviation from the ideal conditions, e.g., the tilt angle was 38° instead of the desired 45°, virtually pure 1.6π rad phase modulation was obtained; the measured values agree very well with our numerical simulations of the real device.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Liquid-crystal devices
- Phase modulation
- Spatial light modulators
- Liquid crystals
- Polarization
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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