[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 j }^?Snq  
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1、光疏射向光密 !Y^$rF-+  
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clear VasQ/  
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close all Jz;`L3m  
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n1=1,n2=1.45; R'K /\   
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theta=0:0.1:90; /KvpJ4  
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a=theta*pi/180; qj*BV  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); < R@&<E6  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 8r\xQr'8h  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); #@5 jOi  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); t.O4-+$ig  
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figure(1) 5o(=?dXm4  
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subplot(1,2,1); 8{Svax(  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 10/3-)+  
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legend('r_p','r_s','|r_p|','|r_s|') V|0UwS\n  
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xlabel('\theta_i') oWOH#w  
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ylabel('Amplitude') Sag\wKV8  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) QaEXk5>e  
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axis([0 90 -1 1]) w@f_TG"Vt  
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grid on -3b0;L&4>x  
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subplot(1,2,2); b}G +7B  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) t,P+~ A  
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legend('t_p','t_s','|t_p|','|t_s|') WI'csM;M#  
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xlabel('\theta_i')
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ylabel('Amplitude') ')FNudsC  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)])
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axis([0 90 0 1]) pK1(AV'L  
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grid on +Q_Gm3^  
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Rp=abs(rp).^2; ~d5{Q?T)  
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Rs=abs(rs).^2; @o^sp|k !  
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Rn=(Rp+Rs)/2; I2l'y8)d  
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Tp=1-Rp; wLUmRo56aR  
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Ts=1-Rs; 02S(9^=  
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Tn=(Tp+Ts)/2; ,[hJi3xM  
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figure(2) g%[Ruugu  
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subplot(1,2,1); T<=\5mn  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) a:]yFi:Su  
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legend('R_p','R_s','R_n') hP#&]W3:  
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xlabel('\theta_i') f3h9CV  
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ylabel('Amplitude') nBj7Q!lW  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <z4!m/f[(  
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axis([0 90 0 1]) :R&tO3_F  
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grid on ?k?Hp:8?=  
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subplot(1,2,2); d$Xvax,C  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) u@3w$"Pv1  
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legend('T_p','T_s','T_n') 8YJ({ Ou_  
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xlabel('\theta_i') ;Os3 !  
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ylabel('Amplitude') Vqr&)i"b$  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~!OjdE!u  
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axis([0 90 0 1]) J.d `tiN  
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grid on lb('r"*.  
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2、光密射向光疏 SJ-Sac58r  
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clear K&h6#[^\d  
YovY0nO  
close all K/-D 5U  
s$_#T  
n1=1.45,n2=1; G;;~xfE'  
I'C,'  
theta=0:0.1:90; wW4S@m  
qu%s 7+  
a=theta*pi/180; ?+\,a+46P_  
A@OV!DJe]  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Ul Iw&U  
De_</1Au!2  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); [)A#9L~s=  
~aG-^BAS  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); O|~'-^  
$EIkk= z  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); wrU[#g,uvr  

vp@+wh]#  
figure(1) gOM`I+CwT  
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subplot(1,2,1); 3#[I_
 
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) j+hoj2(  
mtHz6+  
legend('r_p','r_s','|r_p|','|r_s|') ~~,<+X:  
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xlabel('\theta_i') 3)a29uc:U  
DG=Ap:sl*$  
ylabel('Amplitude') xF;v 6d  

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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) (xed(uFEK  
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axis([0 90 -1.5 1.5]) :\_MA^<  
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grid on [!mjUsut*  
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subplot(1,2,2); zQ}N mlk  
rgKn=8+a  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Y;Gm,  
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legend('t_p','t_s','|t_p|','|t_s|') `F8;{`a  
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xlabel('\theta_i') C:MGi7f  
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ylabel('Amplitude') dy
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ZF(=^.gc  
J94YMyOo  
axis([0 90 -0.5 3]) ? M_SNv  
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grid on e622{dfVS  
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Rp=abs(rp).^2; #9VY[<  
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Rs=abs(rs).^2; $]JIA|  
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Rn=(Rp+Rs)/2; }F6b ]  
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Tp=1-Rp; e~]e9-L>I  
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Ts=1-Rs; >[4|6k|\x  
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Tn=(Tp+Ts)/2; iGVb.=)  
bCUh^#]x  
figure(2) $ywh%OEH  
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subplot(1,2,1); O \8G~V 5"  
y7EX&  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) eAKQR  
ik0Q^^1?Y  
legend('R_p','R_s','R_n') 9k[},MM  
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xlabel('\theta_i') M`pTT5r  
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ylabel('Amplitude') C+m^Z[
 
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) LE80`t>M#  
l'".}6S  
axis([0 90 0 1]) J*KBG2+13  
4eL54).1O  
grid on 8;f<qu|w  
hs_|nr0;[  
subplot(1,2,2); ,xe@G)a  
RdvTtXg  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) !_H8Q}a  
wDMB  
legend('T_p','T_s','T_n') cW\Y?x   
c0Ro3j\p  
xlabel('\theta_i') Y1aF._Z  
m
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ylabel('Amplitude') @TPgA(5NR  
SOQ-D4q  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) `e'o~oSu  
IH5} Az  
axis([0 90 0 1]) xgqv2s>
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Fif^V  
grid on {G1aAM\Hz  
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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 3[0w+{(Q  

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