[分享]利用MATLAB光學(xué)仿真（1） [復(fù)制鏈接]

利用菲涅爾公式計(jì)算光波在兩種介質(zhì)表面折反射率及折反射能流密度 mYRW/8+g  
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1、光疏射向光密 64jFbbd-/  
nJ{vO{N  
clear PW)Gd +y  
d>OLnG> F  
close all Okt0b|=`1*  
FvTc{"w /  
n1=1,n2=1.45; t=B>t S.hO  
E Qn4+  
theta=0:0.1:90; $T%~t@Cv1  
*W&}}iL  
a=theta*pi/180; Yj-JB  
G:k]tZ*`  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); (s?Rbd  
Rz\:)<G  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); hI Q 2s  
2$OI(7b=  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); |'?./  
qS.TVNZ  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 08 $y1;  
Jq8CII  
figure(1) Q^c)T>OAI  
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subplot(1,2,1); yR|Beno  
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EX  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Rx\.x? &  
l%^VBv> 2  
legend('r_p','r_s','|r_p|','|r_s|') d=J$H<  
g.9:R=JPT  
xlabel('\theta_i') N