supported by the National Natural Science Foundation of China ( grant no. 91338116);the National Key Basic Research and Development Program ( 973 Plan) ( grant no. 613225)
To calibrate the phase retardance of a Liquid crystal variable retarder(LCVR),its birefringence dispersion characteristic was analyzed,and the Support vector machines(SVM) algorithm was adopted to establish the predic...
Dielectric gratings with period in the range from λ/10 to λ/4 with A being the illumination wavelength not only exclude higher order diffractions but also exhibit strong dispersion of effective indices which are pro...