Three-level phase modulator based on orthoconic antiferroelectric liquid crystals
Journal article, 2006

Surface-stabilized orthoconic antiferroelectric liquid crystals (OAFLCs) have a director tilt of θ=45° and are, with no field applied, negatively uniaxial with the optic axis perpendicular to the cell substrates. We demonstrate that OAFLCs can be utilized to achieve lossless phase modulation with three almost equidistant phase levels. This turns out to be true also for polymer-stabilized OAFLCs, where the polymer network increases the switching speed of the device without affecting the phase modulation appreciably.

Phase modulation

Liquid-crystal devices

Liquid crystals

Spatial light modulators

Author

David Engström

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Per Rudquist

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Jörgen Bengtsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Koen D'Havé

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Sheila Galt

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Optics Letters

0146-9592 (ISSN) 1539-4794 (eISSN)

Vol. 31 21 3158-3160

Subject Categories

Telecommunications

More information

Created

10/6/2017