[分享]利用MATLAB光學仿真（1） [復(fù)制鏈接]

利用菲涅爾公式計算光波在兩種介質(zhì)表面折反射率及折反射能流密度 r|tTDKGQ  
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1、光疏射向光密 }[OOkYF#r  
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clear KDX34Fr1  
kW@,P.88  
close all +MfdZD  
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n1=1,n2=1.45; u/BCl!`  
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theta=0:0.1:90; [nam H a  
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a=theta*pi/180; ~)JNevLZ  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); T.sib&R  
1 f;k)x  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Sb&[V>!2^  
2=TQU33#  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); =hO0@w  
2R!1Vl  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ;U=RV&  
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figure(1) (gv1f  
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subplot(1,2,1); 0OndSa,  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) m\88Etl@  
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legend('r_p','r_s','|r_p|','|r_s|') JEK6Ms;)A  
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xlabel('\theta_i') %C!u/:.Kv  
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