[分享]利用MATLAB光学仿真（1） [复制链接]

利用菲涅尔公式计算光波在两种介质表面折反射率及折反射能流密度 a5Acqa  
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1、光疏射向光密 ?yd(er<_f  
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clear {/[?YTDU  
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close all XiZ Zo  
qS[p|*BL  
n1=1,n2=1.45; P*qNRP%  
F.* snF  
theta=0:0.1:90; VHY<(4@  
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a=theta*pi/180; K]=>F  
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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)); :Y)kKq d  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); h"Yqm"U/  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); {Z{NH:^  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); dXcMysRc%&  
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figure(1) *fy`
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subplot(1,2,1); p2_Zsq  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) b<H6D}  
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legend('r_p','r_s','|r_p|','|r_s|') 7g<`wLAH  
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xlabel('\theta_i') W3-Rs&se  
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ylabel('Amplitude') .$x[!fuuR&  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) (P!reYyM  
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axis([0 90 -1 1]) 'krMVC-  
%'~<:>:"E  
grid on 
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subplot(1,2,2); eR 2T<7G  
hFPRC0ftE  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2)  $.]t1e7s  
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legend('t_p','t_s','|t_p|','|t_s|') /gy:#-2Gy  
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xlabel('\theta_i') pvd
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ylabel('Amplitude') 6V?&hq&t  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |+=:x]#vV  
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axis([0 90 0 1]) EG8R*Cm,}  
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grid on Tb6x@MorP  
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Rp=abs(rp).^2; z4`n%~w1b  
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Rs=abs(rs).^2;
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Rn=(Rp+Rs)/2; 2o5<nGn  
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Tp=1-Rp; P FFw$\j  
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Ts=1-Rs; 9i)mv/i  
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Tn=(Tp+Ts)/2; a^/20UFq  
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figure(2) %~VIxY|d  
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subplot(1,2,1); c,%>7U(w_  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 3Qr!?=nf  
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legend('R_p','R_s','R_n') RSeezP6#  
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xlabel('\theta_i') %,q#f#  
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ylabel('Amplitude') Elk$9 <<  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) P(+ar#,G  
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axis([0 90 0 1]) .7rsbZzs  
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grid on qr;" K?NX  
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subplot(1,2,2); xEWa<P#.u  
LMzYsXG*[  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) &4iIzw`  
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legend('T_p','T_s','T_n') NdQ?3'WJ  
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xlabel('\theta_i') G ~\$Oq8  
'Em($A(  
ylabel('Amplitude') },ZL8l{  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) w2V E_  
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axis([0 90 0 1]) rt;>pQ9,  
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grid on @"2-tn@q_  
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2、光密射向光疏 7.-|3Wcg  
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clear VgL<uxq  
#+=afJ  
close all =!aV?kNS8  
wEyh;ID3#  
n1=1.45,n2=1; .kV/0!q?  
J)f?x T*  
theta=0:0.1:90; <L0_<T  
SM?<woY=*  
a=theta*pi/180; sj2+|>
 
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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)); ps[rYy  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); QG ia(  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); wu3ZSLY  
&nn":  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); eP8wTStC  
T%F'4_~No  
figure(1) Wit1WI;18  
bcg)K`'N  
subplot(1,2,1); JM0)x}]+  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) M_Dk
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legend('r_p','r_s','|r_p|','|r_s|') NaIVKo  
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xlabel('\theta_i') ;+\;^nS3d  
2*N# %ZUX  
ylabel('Amplitude') TDFv\y}yc  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $U1'n@/J  
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axis([0 90 -1.5 1.5]) i "xq SLf=  
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grid on GU9
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subplot(1,2,2); n=~?BxB  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 1JY4E2Q  
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legend('t_p','t_s','|t_p|','|t_s|') IdM
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xlabel('\theta_i') ?k-IS5G  
gNJ\*]SY  
ylabel('Amplitude') QLn5:&  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Pj$a$C`Z  
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axis([0 90 -0.5 3]) BFY~::<b  
mdwY48b  
grid on =e63>*M|  
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Rp=abs(rp).^2; -kkXyO8js  
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Rs=abs(rs).^2; t{
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Rn=(Rp+Rs)/2; jWQB~XQY  
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Tp=1-Rp; #RcmO*
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Ts=1-Rs; 6*%lnd+_  
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Tn=(Tp+Ts)/2; 0kDT:3  
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figure(2) Ofn:<d
  
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subplot(1,2,1); $iV3>>;eh  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 2- )Ml*  
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%  
legend('R_p','R_s','R_n') dJkTHmw  
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xlabel('\theta_i') iS{)Tll}&  
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ylabel('Amplitude') lB,MVsn18  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) cq/)Yff@:  
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axis([0 90 0 1]) #SL/Jr DZ  
t ;[Me0  
grid on  iGR(  
SkxTgX5  
subplot(1,2,2); T_r[#j  
SN11J+  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) |^FDsJUN  
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legend('T_p','T_s','T_n') 1 %*X,E  
UHXlBH@  
xlabel('\theta_i') p@P[pzxI  
Cu>pql<O  
ylabel('Amplitude') ! $n^Ze2 !  
am`eist:  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) "5{\0CfS  
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axis([0 90 0 1]) `W"-jz5#=  
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grid on KExfa4W 3{  
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感谢楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

谢谢了楼主分享

thanks

谢谢了楼主分享

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学习学习 A1>R8Zuhy  

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