[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 H;MyT Vl  
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1、光疏射向光密 sBa&]9
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clear yX.; x 0  
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close all `(M0I!t  
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n1=1,n2=1.45; )]C(NTfxg  
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theta=0:0.1:90; JPM~tp?;<  
8cGoo u6  
a=theta*pi/180; G7%f| Y  
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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)); JHa\"h  
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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)); p8j*m~4B  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [1e]_9)p  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6+4SMf3  
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figure(1) N@X(YlO  


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subplot(1,2,1); c7D{^$L9v  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Py#TXzEcC  
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legend('r_p','r_s','|r_p|','|r_s|') Z1_F)5
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xlabel('\theta_i') QCO,f  
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ylabel('Amplitude') \h?6/@3ob  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) -$$mrU  
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axis([0 90 -1 1]) b[J0+l\!"  
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grid on  U4qk<!  
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subplot(1,2,2); }WhRJr`a  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ozKS<<  
bd H+M?k  
legend('t_p','t_s','|t_p|','|t_s|') ]D4lZK>H  
p`EgMzVO,  
xlabel('\theta_i') r
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X#HH7V>  
ylabel('Amplitude') O[\mPFu5  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)])  : 76zRF  
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axis([0 90 0 1]) hM[3l1o{|  
jib pZ)  
grid on DP;:%L}  
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Rp=abs(rp).^2; al9( 9)  
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Rs=abs(rs).^2; C_JO:$\rE  
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Rn=(Rp+Rs)/2; ":q+"*fy  
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Tp=1-Rp; +o):grWvQ  
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Ts=1-Rs; I1rB,%p
  
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Tn=(Tp+Ts)/2; %hlgLM  
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figure(2) bZr,jLEf  
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subplot(1,2,1); v+}${h9  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) wS+!>Q_]w  
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legend('R_p','R_s','R_n') g*`xEb='  
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xlabel('\theta_i') .Z#/%y3S  
qHtIjtt[q  
ylabel('Amplitude') R$66F>Jz^  
wX_~H*m?  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) t&NpC;>v  
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axis([0 90 0 1]) \Rb:t}  
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grid on !|j|rYi-  
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subplot(1,2,2); bwcr/J(Nb  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 2i;ox*SfpU  
cA|vH^:  
legend('T_p','T_s','T_n') gFrNk Uqp  
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xlabel('\theta_i') Yi)s=Q:  
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ylabel('Amplitude') Z[ &d2
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Jz3,vVfQ:  
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axis([0 90 0 1]) vU5}E\Ny  
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grid on wW/q#kc  
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2、光密射向光疏 y+w,j]  
vp.?$(L^@/  
clear |FM*1Q[1  
'21gUYm  
close all Gyy4zK  
j*Pq<[~  
n1=1.45,n2=1; Hh*?[-&r~  
EG|dN(qh  
theta=0:0.1:90; pMy:h   
5oSp/M  
a=theta*pi/180; 0Ci/-3HV!  
>:> W=  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Z b$]9(RS  
;RX u}pd  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); qIQRl1Tw;V  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 3X11Gl  
EY<"B2_%  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); x: _[R{B  
Xa.8-a"hz  
figure(1) /]5*;kO`  
+kQ=2dva  
subplot(1,2,1); YzQ1c~
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)7NI5x^$  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 7>BfHb  
@sA!o[gH  
legend('r_p','r_s','|r_p|','|r_s|') rzn,NFI  
i!e8-gVMP&  
xlabel('\theta_i') UO@K:n  
O>1Cx4s5  
ylabel('Amplitude') (IVhj^dQm  
AH5;6Q  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^Y%_{   
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axis([0 90 -1.5 1.5]) KNd<8{'.  
#Gg^QJ*  
grid on 3N|z^6`#  
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subplot(1,2,2); v[^8_y}A`  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 7#%Pry  
HNv~ZAzBG-  
legend('t_p','t_s','|t_p|','|t_s|') y^`JWs,  
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xlabel('\theta_i') m 0vW<  
/B~[,ES@1  
ylabel('Amplitude') -[ gT}{k!  
)3:0TFS}}k  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) SnQT1U%  
Wu/#}Bw#  
axis([0 90 -0.5 3]) H4AT>}ri  
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grid on L}Y.xi  
QR'#]k;>%  
Rp=abs(rp).^2; {#k[-\|;  
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Rs=abs(rs).^2; o?hr>b  
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Rn=(Rp+Rs)/2; Gw$5<%sB  
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Tp=1-Rp; X]D,kKasG  
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Ts=1-Rs; G#7(6:=;,`  
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Tn=(Tp+Ts)/2; > ]^'h  
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figure(2) r9})~>   
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subplot(1,2,1); znwKwc8,  
c Pf_B=  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 4v hz`1  
Pa{  
legend('R_p','R_s','R_n') j/d}B
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(jDz[b#OPz  
xlabel('\theta_i') ?l^Xauk4Pj  
=#S.t:HQ*  
ylabel('Amplitude') +wmG5!%$|  
~E7IU<B  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) XH$r(@Z\7  
$3g{9)}  
axis([0 90 0 1]) lFyDH{!  
S*V}1</L  
grid on |2u=3#Jp  
j,+]tHC-  
subplot(1,2,2); I'BhN#GhX  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) c Rq2 re  
D![v{0er  
legend('T_p','T_s','T_n') W-n4wIj"  
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xlabel('\theta_i') 4?'vP'  
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ylabel('Amplitude') _xp8*2~-  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 0<-E)\:[g  
bItcF$#!!!  
axis([0 90 0 1]) zl|z4j'Irc  
J{1H$[W~}  
grid on Y"GNJtsL"  
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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 V;M_Y$`Lh  

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