[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%3VV$  
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1、光疏射向光密 NT0im%  
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clear R<)^--n  
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close all tKX+eA]  
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n1=1,n2=1.45; *U mWcFoF  
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theta=0:0.1:90;
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a=theta*pi/180; n/6qc3\5i  
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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)); +V
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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)); c-y`Hm2"  
JQ%D6b  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); V{{Xz:  
&cSZ?0R  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); =j~v
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figure(1) A-&XgOL  
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subplot(1,2,1); | zyO;  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 'JRYf;9c  
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legend('r_p','r_s','|r_p|','|r_s|') \0fk^  
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xlabel('\theta_i') )?MUUI:  
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ylabel('Amplitude') %F
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) J|aU}Z
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axis([0 90 -1 1]) EM7Z g 65  
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grid on -d4|EtN  
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subplot(1,2,2); .z, ot|  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) =k]2Ad  
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legend('t_p','t_s','|t_p|','|t_s|') [T(`+ #f  
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xlabel('\theta_i') Q;?rqi ,  
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ylabel('Amplitude') yi;pn Z  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O?$]/d  
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axis([0 90 0 1]) V [Wo9Y\  
x K ;#C  
grid on P$zhMnAAN  
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Rp=abs(rp).^2; FEA t6  
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Rs=abs(rs).^2; 0=k  
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Rn=(Rp+Rs)/2; {u[
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Tp=1-Rp; !LJ4 S  
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Ts=1-Rs; Om(Ir&0  
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Tn=(Tp+Ts)/2; ZkryoIQ%=  
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figure(2) `>&K=C?  
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subplot(1,2,1); vP%}XEF  
j@R"AP}  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) DN;|?oNZ  
:3[;9xCHj  
legend('R_p','R_s','R_n') 5KTPlqm0qF  
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xlabel('\theta_i') 6x;!E&<  
G_`Ae%'h  
ylabel('Amplitude') srhI%Zj  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9t!Agxm  
phR:=Ox|1  
axis([0 90 0 1]) "(mF5BE-E  
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grid on 05Q4$P  
4BZ7R,m#.  
subplot(1,2,2); *).!  
TN/y4(j  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) *j<{3$6Ii  
P4:Zy;$v!  
legend('T_p','T_s','T_n') TZhYgV  
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xlabel('\theta_i') |G/U%?`  
3+&k{UZjt  
ylabel('Amplitude') @0V4$OoFl  
iB5q"hoZC  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9)>+r6t  
29zMs9oKPP  
axis([0 90 0 1]) Dq-[b+bm  
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grid on vX_;Y#uD  
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2、光密射向光疏 nNeCi  
NkoyEa/^[  
clear raZkH8  
=!)x`1j!S  
close all SLNq%7apx  
4C )sjk?m  
n1=1.45,n2=1; 8@b`a]lgrd  
hiv {A9a?  
theta=0:0.1:90; iRx`Nx<@  
eJ6 #x$I,  
a=theta*pi/180; xUNq!({T  
{|@}xrB  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); N 'n0I^Y1A  
Lq2jXy5#n  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); L c )i  
$@l=FV_;  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); .IM]B4m  
NwdrJw9  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 1CR\!?  
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figure(1) *sau['Ha  
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subplot(1,2,1); L)4~:f
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) |~#A?mK
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l*{Bz5hc  
legend('r_p','r_s','|r_p|','|r_s|') X,Rl&K\b"  
C/QrkTi=  
xlabel('\theta_i') MPKrr  
It<VjN9  
ylabel('Amplitude')  ZpMv16  
\ueCbfV!Z4  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4GH&u,  
mnBTZ/ZjS  
axis([0 90 -1.5 1.5]) o5sw]R5  
C]fX=~?bGQ  
grid on VFMn"bYOB  
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6 hN,  
subplot(1,2,2); 1k^$:'  
KUq7Oa!  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) OnhR`  
eo@8?>}{X  
legend('t_p','t_s','|t_p|','|t_s|') /n6ZN4  
WnOvU<Z <  
xlabel('\theta_i') nLmF5.&  
W /*?y&  
ylabel('Amplitude') fmJK+  
w{u,YM(Q  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :R3iLy  
&5.J y2hO]  
axis([0 90 -0.5 3]) iBtG@M  
?3qp?ea  
grid on 8)1=5n  
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Rp=abs(rp).^2; hW9!  
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Rs=abs(rs).^2; A:D
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Rn=(Rp+Rs)/2; 7&/1K%x9;  
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Tp=1-Rp; zb4{nzX=  
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Ts=1-Rs; WPrBK{B`o  
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Tn=(Tp+Ts)/2; 4mKH |\g  
`rK@> -  
figure(2) IW>~Yl?  
r> Xk1~<!  
subplot(1,2,1); sa _J6~  
KATf9-Sz  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 2y|n!p T  
Xit@.:a;  
legend('R_p','R_s','R_n') -ah)/5j  
7[uN;B#V  
xlabel('\theta_i') ){z#Y#]dP  
)db:jPkwd  
ylabel('Amplitude') Q`6hJgyL  
$G6kS@A  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) k@s<*C  
>mpNn  
axis([0 90 0 1]) Mk=*2=d  
[s\8@5?E  
grid on C[hNngb7R  

x7G)^  
subplot(1,2,2); avM8-&h  
#H<}xC2  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) .qKfhHJ  
W`c$2KS?DO  
legend('T_p','T_s','T_n') u"%D;  
CB,2BTtRE  
xlabel('\theta_i') I<,~>'cq.  
qT #=C'?  
ylabel('Amplitude') isy[RAP<  
Gc*=n*@^K  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) kOdpW  
B2*>7 kc_s  
axis([0 90 0 1]) 64'QTF{D  
auX(d -m  
grid on ujN~l_4  
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F(Zf=$cx  

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 Z$)jPDSr  

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