Composite quarter-wave systems with adjustable parameters

Abstract

A new type of composite quarter-wave system with adjustable parameters has been proposed and investigated experimentally. The first system is a quarter-waveplate with adjustable optical activity and the second system is a quarter-wave plate with an adjustable axis orientation.

On‐Demand Polarization Controllable Liquid Crystal Laser

“…By making use of this electro-optic behavior, various device configurations have been presented that use nematic, [35] chiral nematic [36] or a combination of LC phases [37] to manipulate the polarization state of light. [38][39][40][41][42] Moreover, a polarization tuneable chiral nematic LC laser has been demonstrated previously [43] where the polarization state of the output can be controlled. However, in accordance with the findings reported for other polarization devices, the control of the polarization was limited as the orientation of the polarization state could not be controlled directly.…”