计算机辅助光学设计code_V_S10节.ppt

HOE Diffractive Surface Properties Interferograms Used to model spatially-varying surface deformations, wavefront errors, or apodization data *.int text file contains grid, polynomial or user-defined data Surface deformations Attached to real refracting or reflecting surface Alters ray direction and OPD Data can be obtained from measurement of surface with commercial interferometers Adding .int Data to a Surface Controls for positioning .int data INT S2 surgrd Cement Any glass-glass interfaces are assumed to have a default cement between them Index, nd = 1.5585 Abbe number = 44.6 If the default index is used, this corresponds to NOA-61 cement.1 Affects cemented surface losses in the Transmission Analysis option and all polarization calculations. User can change index; Abbe number remains fixed 1Norland Products Incorporated, North Brunswick, NJ Changing Cement Index Grayed out unless surface is a glass-glass interface CEM S2 1.72 Single or Multilayer Coatings Surfaces that are air-glass interfaces have a default l/4 MgF2 coating l/4 at coating wavelength specified in System Data (default = system reference wavelength) Can change to a different single layer coating by specifying index and thickness Multilayer coatings can be defined in CODE V’s Multilayer Coating Design Analysis Option (MUL) (command mode only), then applied to surface Must have coating prescription of index/thickness for each layer in stack Coatings affect transmission and polarization analyses Coatings Page Single layer coatings Multi-layer coatings Polarization Operators The Coatings surface properties page also lists the option of “Polarization Operator” Polarization Operators act at the lens surface to alter the polarization state of the incident light Must activate polarization raytracing in System Data (or POL Y) Polarization Operators (cont.) Options: Linear Polarizer Ideal Retarder Faraday Rotator Jones Matrix User Defined Input parameters vary accordingly Operators are indepen