[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 w=K!U]  
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1、光疏射向光密 Ad'b{C%  
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clear * U#@M3g.  
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close all -0R;C`(!  
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n1=1,n2=1.45; &8^ch,+pD  
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theta=0:0.1:90; WymBjDos:  
zJCm0HLJ  
a=theta*pi/180; $4Ko  
TP-<Lhy  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); (}:n#|,{M  
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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));  SK&?s`  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); oPVyLD  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ZZJXd+Q}  
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figure(1) G"._]3CPF  
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subplot(1,2,1); gJv;{;%  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) w:~Y@b~D  
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legend('r_p','r_s','|r_p|','|r_s|') f}_d`?K  
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xlabel('\theta_i') rt5eN:'qY  
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ylabel('Amplitude') b}OOG  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _s> ZY0  
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axis([0 90 -1 1]) c'8a)j$$+  
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grid on 83ajok4E  
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subplot(1,2,2); yavoGk
 
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 'z}Hg *  
[=xJh?*P  
legend('t_p','t_s','|t_p|','|t_s|') ju= +!nGUa  
zJJ6"9sl  
xlabel('\theta_i') {g7[3WRy  
W18I"lHeh  
ylabel('Amplitude') H^e0fm  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) .{@aQwN  
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axis([0 90 0 1]) *xl930y  
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grid on ;N FTdP  
Wveba)"$  
Rp=abs(rp).^2; /KWR08ftp  
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Rs=abs(rs).^2; ;Q0WCm\5  
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Rn=(Rp+Rs)/2; w|uO)/v  
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Tp=1-Rp; 8sV_@<l<X  
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Ts=1-Rs; v\UwL-4
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Tn=(Tp+Ts)/2; F$QAWs  
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figure(2) t#0/_tD  
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subplot(1,2,1); %!>~2=Q2*  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 2+Tu"oG;rB  
nnZ|oEF  
legend('R_p','R_s','R_n')
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xlabel('\theta_i') 7fOk]Yl[  
P K]$D[a0  
ylabel('Amplitude') x-e?94}^  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) G\?q{  
bLfbzkNV\1  
axis([0 90 0 1]) c QjzI#  
KvM}g2"  
grid on $:YJ<HvG<  
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subplot(1,2,2); $1CAfSgKw  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) JERWz~n}  
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legend('T_p','T_s','T_n') J)w58/`?t  
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xlabel('\theta_i') 3KF[ v{  
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ylabel('Amplitude') 6tE<`"P!  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) %mhnd):  
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axis([0 90 0 1]) l"\W]'T:r  
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grid on ?\Q
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2、光密射向光疏 3 ;F=EMz{  
acWm+  
clear Z=sCYLm  
xud  
close all Z#wmEc.}C  

mCtuR*z_  
n1=1.45,n2=1; QD0upYG  
Q?GmSeUi  
theta=0:0.1:90; 9w -t9X>X  
cS98%@DR  
a=theta*pi/180; P`'
Nv  
Ix,`lFbH  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $1N_qu  
qA<PF+f  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); #Nt?4T<  
G)b6Rit  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); q%=`PCty  
UW+|1Bj_:  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); T jO}P\p  
%3ecV$  
figure(1) C3af>L@}  
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3_oT^$:  
subplot(1,2,1); L;=<d  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) .y{qsL^P  
iHo2=Cz  
legend('r_p','r_s','|r_p|','|r_s|') gqaENU>  
r>:7)p!|  
xlabel('\theta_i') {]~b^=qE$  
zrjqB3R4@O  
ylabel('Amplitude') qby!  
&N!QKrj3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) B Mh949;  
~Dw.3P:-  
axis([0 90 -1.5 1.5]) 3tMFJ ;*`  
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grid on Akf?BB3bC  
" 1YARGu  
subplot(1,2,2); Zqke8q  
1}mIzrY  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) $-m`LF@  
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legend('t_p','t_s','|t_p|','|t_s|') F4i c^F{K  
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xlabel('\theta_i') N3Ub|
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Kw}-<y  
ylabel('Amplitude') q9w6 6R  
9u/
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :tY;K2wDM  
[ZS}P  
axis([0 90 -0.5 3]) <U=
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F{\MIuoy  
grid on -E#!`~&V  
f5
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Rp=abs(rp).^2; +1Oi-$ 2-  
U]lXw+&  
Rs=abs(rs).^2; /i|T\  
NrVrR80Y  
Rn=(Rp+Rs)/2; 4f<%<Z  
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Tp=1-Rp; s4bL
L  
MzRURH,  
Ts=1-Rs; 4(MZ*6G]?  
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Tn=(Tp+Ts)/2; #uJGXrGt=  
yzW9A=0A)  
figure(2) JK.lL]<p i  
 rxQn[  
subplot(1,2,1); 2xH
9O{  
ZKyK#\v<  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) mmm025.   
E_]L8UC;m  
legend('R_p','R_s','R_n') 't \:@-tQ  
wxpE5v+f|  
xlabel('\theta_i') stz1e dP  
,JyE7h2%i  
ylabel('Amplitude') ?y!0QAIXK  
j8?z@
iG  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) %B`MO-  
Y[9x\6 _E  
axis([0 90 0 1]) l2KR=&SX/  
]Qe;+p9vU  
grid on /|Za[
 
&yv%"BPV  
subplot(1,2,2); ,/{mRw%  
2>0[^ .;"  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) wy"^a45h  
x(h(a#,r  
legend('T_p','T_s','T_n') SeqnO.\  
0\O*\w?  
xlabel('\theta_i') Oz!#);v  
w}^z1n  
ylabel('Amplitude') a(s}Ec${Z  
{`BC$V  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) qYc]Y9fi  
!Gsr* F{.  
axis([0 90 0 1]) 3 <RkUmR  
5FcKY_  
grid on oHdss;q  

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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

学习学习

学习学习 6"Q/Y[y  

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