[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 @0F3$  
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1、光疏射向光密 \Rp-;.I@6  
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clear NB8/g0:=n&  
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close all @WVcY:1t#  
v~^{{O  
n1=1,n2=1.45; {$wjO7Glp  
o:_Xv.HRZo  
theta=0:0.1:90; @9lUSk^9  
N9v1[~ bv_  
a=theta*pi/180; BDjn !3  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); i~{Ufi  
|%' nVxc4r  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6Q${U7%7  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); |563D#?cR  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); * iF]n2g:  
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figure(1) RH&~+5  
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subplot(1,2,1); )3>hhuaa  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) .n~M(59  
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legend('r_p','r_s','|r_p|','|r_s|') !lj| cT9  
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xlabel('\theta_i') w.?:SD  
LILQ\I<<'  
ylabel('Amplitude') ,"HL~2:~  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) vy\RcP  
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axis([0 90 -1 1]) opc/e  
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grid on `#;e)1  
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subplot(1,2,2); ,uSQNre\j  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) }#&#^ B#?O  
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legend('t_p','t_s','|t_p|','|t_s|') v%iof1 T'  
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xlabel('\theta_i') [<  &oF  
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ylabel('Amplitude') Aj+2;]M  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }x07^4$j  
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axis([0 90 0 1]) Q|D @Yd\  
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grid on d~JKH&x<  
'a\%L:`  
Rp=abs(rp).^2; XYZ4TeW\1  
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Rs=abs(rs).^2; 7r~~Y%=C|  
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Rn=(Rp+Rs)/2; {z")7g ]l  
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Tp=1-Rp; WZ*ws[dVI  
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Ts=1-Rs; ,v';>.]  
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Tn=(Tp+Ts)/2; w-t8C=Z  
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figure(2)
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subplot(1,2,1); L_wk~z  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) n8".XS  
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legend('R_p','R_s','R_n') L;'"A#Pa  
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xlabel('\theta_i') ~e+\k>^eN  
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ylabel('Amplitude') lna}@]oR  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Z(ACc9k6:'  
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axis([0 90 0 1]) #py[  
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grid on o'f?YZ$.  
vA]W|sLF9  
subplot(1,2,2); 7 D^gMN%p  
p%*%n3bw  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) r0,:J  
(tZrw5@  
legend('T_p','T_s','T_n') p4-o/8rO  
9/ibWa\.  
xlabel('\theta_i') 9&_<f}ou  
YYu6W@m]  
ylabel('Amplitude') c%'RR?Tl  
3~S8!nx  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 'F$l{iR  
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axis([0 90 0 1]) *22nVKi{  
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grid on fi$-;Gz  
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2、光密射向光疏 7|[mz> "d  
Ou1JIxZ)|  
clear li 6%)  

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close all Wu_kx2h  
?`#/ 8PN  
n1=1.45,n2=1; OC<5E121>Y  
eK!V );  
theta=0:0.1:90; Y~(Md@!0S  
FWHNj.r  
a=theta*pi/180; vbD{N3p)?n  
8peDI7[|  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 9uBM<  
Oms. e  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); tGl;@V@Qj  

O2BDL1o  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); X6mqi;+  
%e(z/"M=`  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Ts ^"xlK  
n_(/JE>  
figure(1) AG?dGj^  
`P3>S(Tgy  
subplot(1,2,1);  uJ5Eka  
E8n)}[k!0  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) JZD[NZ<  
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legend('r_p','r_s','|r_p|','|r_s|') 6^"=dn6
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xlabel('\theta_i') P5#r,:zL  
/s[l-1zW  
ylabel('Amplitude') NX/;+{  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7qg{v9|,  
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axis([0 90 -1.5 1.5]) S!G(a"<W  
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grid on 5i1>I=N  
fbL\?S,w  
subplot(1,2,2); ae0> W  
R@6zGZ1  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) SOi*SwQ8  
Y<Xz wro0  
legend('t_p','t_s','|t_p|','|t_s|') OQ>x5?um  
#&m0WI1  
xlabel('\theta_i') ]&i.b+^  
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ylabel('Amplitude') u a~CEs  
4x;/HEb7?  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) vpld*TL*  
bLQ ^fH4ww  
axis([0 90 -0.5 3]) 00SbH$SU  
_',prZ*  
grid on Z6_N$Z.A  
sM?MLB\Za  
Rp=abs(rp).^2; _-9@qe  
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Rs=abs(rs).^2; ni6{pK4Wqm  
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Rn=(Rp+Rs)/2; GA?87N  
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Tp=1-Rp; E !a|Xp  
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Ts=1-Rs; l
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Tn=(Tp+Ts)/2; P '>SmQ  
B|4X}*@SX  
figure(2) fVt9X*xKS  
NDs!a  
subplot(1,2,1); sp5eVAd  
HVP"A3}KC  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) &%s8L\?  
-|Y(V5]  
legend('R_p','R_s','R_n') ;B?DfWX  
%c [F;ug  
xlabel('\theta_i') L. EiO({W  
~<k,#^"}X  
ylabel('Amplitude') 0\:(ageY?  
tX@_fYb  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n[]tXrhU  
FRS>KO=3  
axis([0 90 0 1]) \uXcLhXN  
e?Ho a$k  
grid on ;w%*M}`5  
rc/nFl6#  
subplot(1,2,2); QR Ei7@t  
qOUqs'7/]  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) e89Xb;;w  

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legend('T_p','T_s','T_n') Y;e,Gq`  
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xlabel('\theta_i') E6,4RuCK  
C%U`"-%n@7  
ylabel('Amplitude') L W;heO"  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Q^q1ns;r  
V hk_  
axis([0 90 0 1]) {fEwA8Ir  
9:!gI|C  
grid on ]\xy\\b/`  
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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

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谢谢了楼主分享

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学习学习 Sg] J7;]  

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