| Date 06/09/2010 |
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| Script S3_2_4.m | |||
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%=============================================
%Retarders %============================================= % %P1 and P2 have their transmission axes %parallel to the y axis % %Natural light enters the first polarizer P1 % %Optic axes of quarter and half-wave retarders %subtend an angle of 45° with x axis % %ATTENTION! %The four following cases must be runned %one at time as independent scripts % %.............................................. %a. In series are P1, an half-wave retarder, P2 %.............................................. % %beam emerging from P1 v1=[0;1] %half-wave matrix mh=[0 1;1 0] vr=mh*v1 vrt=vr' %intensity of the beam emerging from half-wave I1=vrt*vr %P2 matrix m2=[0 0;0 1] %beam emerging from P2 vr2=m2*vr vr2t=vr2'; %final intensity I2=vr2t*vr2 % %................................................................. %b. In series are P1, an half-wave retarder, an half-wave retarder %................................................................. % %beam emerging from P1 v1=[0;1] %half-wave matrix mh=[0 1;1 0] vr=mh*v1 vrt=vr' %intensity of the beam emerging from half-wave I1=vrt*vr %half-wave matrix mh2=[0 1;1 0] %beam emerging from second half-wave vr2=mh2*vr vr2t=vr2'; %final intensity I2=vr2t*vr2 % %................................................. %c. In series are P1, a quarter-wave retarder, P2 %................................................. % %beam emerging from P1 v1=[0;1] %quarter-wave matrix m1=(1/sqrt(2))*[1 i;i 1] vr=m1*v1 vrt=vr' %intensity of the beam emerging from quarter-wave I1=vrt*vr %P2 matrix m2=[0 0;0 1] %beam emerging from P2 vr2=m2*vr vr2t=vr2'; %final intensity I2=vr2t*vr2 % %................................................................... %d. In series are P1, a quarter-wave retarder, an half-wave retarder %................................................................... % %beam emerging from P1 v1=[0;1] %quarter-wave matrix m1=(1/sqrt(2))*[1 i;i 1] vr=m1*v1 vrt=vr' %intensity of the beam emerging from quarter-wave I1=vrt*vr %half-wave matrix mh2=[0 1;1 0] %beam emerging from half-wave vr2=mh2*vr vr2t=vr2'; %final intensity I2=vr2t*vr2 %============================================= % |
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