Figure 5 - available via license: Creative Commons Attribution 4.0 International
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(a) Schematic diagram of the internal structure of LCVR under oblique incident light. (b) Schematic diagram of the refraction phenomenon that occurs when incident light is obliquely incident LCVR.
Source publication
The incidence angle of a beam entering a liquid crystal variable retarder (LCVR) and the liquid crystal polarization grating (LCPG) is greater when the LCPG is utilized in the quadrature cascade, which reduces the diffraction efficiency. Therefore, this study investigates the best method for controlling a cascaded LCPG. By optimizing the control co...
Contexts in source publication
Context 1
... an oblique incident, the degree of delay is influenced by the angle of incidence and azimuth of the incident light, in addition to the voltage and wavelength, in a coordinate system with oblique incident light. Figure 5a shows the geometric relationship between the angle of incidence of the beam and the guided axis of the liquid crystal molecule. The liquid crystal molecular guide axis is established according to the LCVR plane and its normal, as shown in the x-y-z coordinate system. ...
Context 2
... the incident light σ the angle of incidence is oblique to the LCVR plane, and refraction occurs at the interface between the air and the liquid crystal layer, as shown in Figure 5b. According to Snell's law, for the angle of refraction ξ with two components of ξo and ξef is expressed as [16] ( ) ...
