[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 E 6#/@C,  
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1、光疏射向光密 P\@kqf~pC  
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clear Y{~`g(~9_A  
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close all .Tl,Ek(  
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n1=1,n2=1.45; ]*MVC
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theta=0:0.1:90; <^$ppwk$  
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a=theta*pi/180; hKg +A  
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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)); K#6@sas  
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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)); eKuF7Oo  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); s-IM  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); xVYa-I[Z  
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figure(1) GwA\>qXw  
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subplot(1,2,1); $v_&jE  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Qe!3ae`Z  
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legend('r_p','r_s','|r_p|','|r_s|') ]H{*Z3S  
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xlabel('\theta_i') @0 x   
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ylabel('Amplitude') d"E3ypPK  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) a>-qHX-l  
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axis([0 90 -1 1]) @@-TW`G7  
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grid on U8gj\G\`  
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subplot(1,2,2); #=0 BjW*  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) v:Gy>&  

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legend('t_p','t_s','|t_p|','|t_s|') l{]KA4  
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xlabel('\theta_i') eU`O=uE   
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ylabel('Amplitude') F?jD5M08t/  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) R i,_x  
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axis([0 90 0 1]) ]t&^o**  
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grid on 8sBT&A6&j  
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Rp=abs(rp).^2; G;W2Z,  
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Rs=abs(rs).^2; ,~1sZ`C  
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Rn=(Rp+Rs)/2; y3j"vKG  
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Tp=1-Rp; ^A=tk!C  
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Ts=1-Rs; \o72VHG66  
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Tn=(Tp+Ts)/2; 5a@9PX^.J  
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figure(2) vGPsjxk&  
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subplot(1,2,1); D*PEIsV  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) YAeF*vP  
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legend('R_p','R_s','R_n') Px*<-t|R-  
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xlabel('\theta_i') HOCj* O4  
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ylabel('Amplitude') q{B?j%.o  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^Mc9MZ)  
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axis([0 90 0 1]) 79d(UG'O  
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grid on kQlwl9  
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subplot(1,2,2); I_->vC|>  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) -}h^'#  
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legend('T_p','T_s','T_n') F
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xlabel('\theta_i') W-&V:S{<  
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ylabel('Amplitude')  O&|<2Qr  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) bJD$!*r\%!  
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axis([0 90 0 1]) 3/Z>W|w#w  
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grid on a@qc?  
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2、光密射向光疏 vI5lp5( -3  
qa )BbK^i  
clear s:"Sbml  
DHw)]WB M  
close all bSX/)')jU  
@&WHX#  
n1=1.45,n2=1; g""GQeR  
B#SVN Lv  
theta=0:0.1:90; }shxEsq  
l&qCgw  
a=theta*pi/180; ZCPUNtOl  
Dpw*m.f  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Cg]),S  
}P fAf  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); _J W|3q  
"W(Ae="60  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); BU/A\4xQ,Y  
 xV5UaD<  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); G,|!&=Pe|E  
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figure(1) {.{Wl,|7  
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subplot(1,2,1); Ls9NQy  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) TI< x;p  
#[lhem]IC  
legend('r_p','r_s','|r_p|','|r_s|') D@*<O=_D(  
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xlabel('\theta_i') _2hLc\#  
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ylabel('Amplitude') ls]N&!/hq  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +)jll#}?  
0Lxz?R x]<  
axis([0 90 -1.5 1.5]) EaO@I.[  
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grid on P)=.Du)  
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subplot(1,2,2); s.}K?)mH  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) :BF? r  
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legend('t_p','t_s','|t_p|','|t_s|') ?W'p&(;  
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xlabel('\theta_i') d7X&3L%Oq  
zzQWHg]/  
ylabel('Amplitude') `S@TiD*  
r<e%;S  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9RaO[j`  
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axis([0 90 -0.5 3]) y~ =H`PAE  
Yv;s3>r  
grid on d]l8ei@>h  
WKEb '^  
Rp=abs(rp).^2; >0IZ%Wiz  
%T{]l;5  
Rs=abs(rs).^2; }9'`3vsJ  
o|(5Sr&H  
Rn=(Rp+Rs)/2; 7Gc{&hp*  
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Tp=1-Rp; RP&bb{Y  
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Ts=1-Rs; >M,oyM"s  
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Tn=(Tp+Ts)/2; 2d !'9mA  
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figure(2) Z',!LK!  
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subplot(1,2,1); $1an#~  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) TC\+>LXiZ  
Z4j6z>qE  
legend('R_p','R_s','R_n') t;&XIG~  
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xlabel('\theta_i') I &t~o  
g{65QP  
ylabel('Amplitude') ,fVD`RR(W?  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $cCC 1=dW  
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axis([0 90 0 1]) ~U9K<_U  
Bh>L"'.2  
grid on 5'~_d@M  
dj0; tQ=C  
subplot(1,2,2); kmI0V
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) RK>Pe3<  
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legend('T_p','T_s','T_n') z^gJy,T  
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xlabel('\theta_i') NO"PO @&Wk  
wl Oeoi  
ylabel('Amplitude') a|aVc'j  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) p\6cpf  
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axis([0 90 0 1]) ;?-AFd\i
 
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grid on NR{wq|"  
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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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