[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 qXW})(  

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1、光疏射向光密 hv$m4,0WB  
%77p5ctW  
clear X$b={]b  
\zkw2*t  
close all (zYy}g#n  
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c?lT  
n1=1,n2=1.45; )Vk6;__  
!epgTN  
theta=0:0.1:90; o{kbc5_  
l\!-2 T6Y  
a=theta*pi/180; M4LktR-[  
+P`(Rf"luu  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); !lmWb-v%36  
s;YKeE!8  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); x/
MZ(A%D  
;C/bJEgdd  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); R,!Q Zxmg  
o:dR5v  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); l0Ti Z  
x2#qg>`l  
figure(1) a>B[5I5  
q
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subplot(1,2,1); ]AS"z<  
~ZlC '  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) zMK](o1Vj  
W:VP1 :  
legend('r_p','r_s','|r_p|','|r_s|') oXt,e  
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xlabel('\theta_i') QI[}(O7#6  
A?"h@-~2  
ylabel('Amplitude') Q1&P@Io$  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =vh8T\  
FkupO I  
axis([0 90 -1 1]) Er:?M_ev  
Q7o5R{.oJ  
grid on l t]B#, '  
dow^*{fqZ  
subplot(1,2,2); $ 'QdFkOr  
Q\J,}1<`6  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Y&r]lD
 
:PnSQjV:  
legend('t_p','t_s','|t_p|','|t_s|') )yb+M ez  
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xlabel('\theta_i') ;+I4&VieK  
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ylabel('Amplitude') ~%|G+m>  
g42R 'E%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) g"!\\:M  
re,.@${H  
axis([0 90 0 1]) *R`MMm  
YirC*  
grid on ; a/cty0Ch  
X`\:_|  
Rp=abs(rp).^2; 4W\,y_Qo  
8!h'j  
Rs=abs(rs).^2; #DP7SO  
GG'Sp53GE  
Rn=(Rp+Rs)/2; 2N6=8Xy5K  
qq+MBW*  
Tp=1-Rp; ,R-Y~+!  
X#+`e+Df  
Ts=1-Rs; Ha ZFxh-(  
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Tn=(Tp+Ts)/2; '%3{
jc-}  
ZZ A.a  
figure(2) VVrwOoCN  
:?r*p>0$  
subplot(1,2,1); G79C {|c\  
%7`d/dgR  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 5FuK\y  
C?QfF{!7  
legend('R_p','R_s','R_n') #cEq_[
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.~dEUt/|)  
xlabel('\theta_i') u2`xC4>c  
3GmK3uM  
ylabel('Amplitude') 135Par5v  
l6B.6 '4)w  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ;x>;jS.t  
ehc<|O9tY  
axis([0 90 0 1]) JY4_v>Aob  
uaQ&&5%%J  
grid on mMxHR$2  
FH n,]Tfx  
subplot(1,2,2); p\txlT  
8)Tj
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) '=%i,  
gv` h-b  
legend('T_p','T_s','T_n') S.fXHtSx  
c57bf  
xlabel('\theta_i') M
5+W$W  
$o+&Y5:  
ylabel('Amplitude') G(i\'#5+  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) RUrymkHFB  
CB@B.)E  
axis([0 90 0 1]) *Ypqq  
!\w\ ]7ls  
grid on #6FaIq92V  
3GWrn,f  
ag/u8  
7jZrU|:yu(  
j];1"50?  

2、光密射向光疏 s_` V*`n&  
v7$9QVze  
clear Oylp:_<aT  
b2%blQgo  
close all v*gLNB,ZH  
8ok7|DJ  
n1=1.45,n2=1; .i
\wE@v  
H!^C
2  
theta=0:0.1:90; ;op'V6iG  
V?WMj $l<  
a=theta*pi/180; :Q#H(\26r  
n%8#?GC`  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); X!?wL0n  
IM|Se4;x  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); A9.;>8!u  
E-[:. &  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); \Qb>:  
qIUC2,&g  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); fzOMX z  
^K*~ <O-  
figure(1) ^$?7H>=_ha  
Hm<M@M$aG  
subplot(1,2,1); _fe0,  
l+'`BBh*]  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 4jPwL|#  
7a27^b  
legend('r_p','r_s','|r_p|','|r_s|') N)Qlkz$X  
(O<abB(  
xlabel('\theta_i') !4!S{#<q  
lP-kZA!  
ylabel('Amplitude') jm~mhAE#  
AIf[W">\  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \_)02ZT:  
}$&);7(w  
axis([0 90 -1.5 1.5]) -!JlM@  
sd]0Hx[  
grid on 4E,hcu  
+KYxw^k}"7  
subplot(1,2,2); Zt7hzW  
t PAt?  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Rqt[D @;m  

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legend('t_p','t_s','|t_p|','|t_s|') QJniM"8v  
FDZeIj9uF  
xlabel('\theta_i') dW:w<{a!R  
s n=zh1 A  
ylabel('Amplitude') +YkmLD  
I}I}K~se*  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) b"*mi  
#xD&z^o  
axis([0 90 -0.5 3]) hG< a  
{A
!;W  
grid on :$+D 2*(  
:H~UyrN  
Rp=abs(rp).^2; 0]/,m4a#n  
ZJ)3GF}4  
Rs=abs(rs).^2; -O>^eMWywo  
%D`^  
Rn=(Rp+Rs)/2; wi![0IE )  
#3AYz82w  
Tp=1-Rp; :%+^}   
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Ts=1-Rs; m1M;'tT@  
a)YJ4\Qg[  
Tn=(Tp+Ts)/2; g>d7%FFn}  
5(mCBH  
figure(2) mdmZ1:PBM  
rQ9?N^&!%  
subplot(1,2,1); (xjoRbU*  
wliGds  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) @+QYWh'  
w%%6[<3%  
legend('R_p','R_s','R_n') .YnP%
X=  
7TMDZ*  
xlabel('\theta_i') {66Q" H"I  
2^k^"<h5j  
ylabel('Amplitude') YL0WUD_>  
(25^r  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) )VV4HoH]8  
*Xf[b)FR  
axis([0 90 0 1]) WOe{mwhhj  
?Oe_} jv;  
grid on fwar8 i1  
\(3Qqbw  
subplot(1,2,2); |e.3FjTH  
'? !7 Be  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) w
[J (E  
}+QhW]nO{F  
legend('T_p','T_s','T_n') 6KZ8 .m}:  
hSLwiX~  
xlabel('\theta_i') TYmUPS$  
2\$WP-)%  
ylabel('Amplitude') ]ouUv7\  
etQx
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Q T0IW(A  
tXb7~aO  
axis([0 90 0 1]) Rd;~'gbG  
;c \zgs~"T  
grid on m;$F@JJ  
K
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(<g;-pZH%  
gpO_0U4lQ]  

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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