Liquid crystal polymer/N-BK7 window material, 3-layer glass substrate + 3-layer LCP film, with mechanical housing
Single-layer LCP film with liquid crystal molecule fast-axis orientation uniformly aligned along the radial direction of the substrate and continuously varying azimuthally, λ/2 retardation
Three-layer LCP films stacked to form an achromatic vortex retarder with overall fast-axis orientation, capable of generating vector polarization beams and vortex beams within the operating wavelength range, exhibiting a center-hole intensity distribution