摘要：Circular polarization selection of light is an important property of helical *** helical thin films fabricated by glancing angle deposition can provide both circular polarization selection and wavelength tuning in this *** selective transmissions were depicted in calculations and *** wavelength tuning mechanism was revealed as the relationship between peak wavelength and deposition ***,tunable circular polarization components can be designed according to the mechanism mentioned above and fabricated by glancing angle deposition *** applications include tunable optical filters,optical pulse-shapers,biosensors etc.