Polarization independent birefringent tunable filters

摘要: Novel, polarization-insensitive, birefringent, broadband tunable filter arrangements that allow high throughput, based on a combination of birefringent layers or polarization dependent filters, in with one more the following components (i) thin film achromatic quarter waveplates form birefringence dielectric subwavelength grating structures, (ii) nano wire-grid polarizers made metallic wire grids; (iii) omnidirectional mirrors, (iv) conversion (v) reflective polarized beam splitters for circularly light, (vi) gratings lines having Gaussian profile, and (vii) Faraday mirror. All these may be implemented substrates, such compact cost effective can produced. The any magneto-optic layer but especially liquid crystals. use novel disposition results throughput.