[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 yfSmDPh  
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1、光疏射向光密 }6#  
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clear \zkg  
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close all /(cPfZZ  
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n1=1,n2=1.45; %{|pj +  
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theta=0:0.1:90; KwS@D9bok  
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a=theta*pi/180; vt8By@]:  
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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)); X, n:,'  
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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)); Pal=F0-Q\  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2));  )2.Si#  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); \~W'v3:W  
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figure(1) Tbq;h?D  
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subplot(1,2,1); KPF1cJ2N  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) T[gv0|+  
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legend('r_p','r_s','|r_p|','|r_s|') ";F'~}bDA  
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xlabel('\theta_i') G
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Dtk=[;"k2a  
ylabel('Amplitude') S'" Df5  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Vksuu@cch  
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axis([0 90 -1 1]) AH^/V}9H  
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grid on ^!d3=}:
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subplot(1,2,2); 7I}uZ/N  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) jp,4h4C^)  
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legend('t_p','t_s','|t_p|','|t_s|') TbU#96"~.  
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xlabel('\theta_i') 6m93puY
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ylabel('Amplitude') LVGe]lD  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @{Q4^'K"  
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axis([0 90 0 1]) f|5co>Hk  
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grid on )
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Rp=abs(rp).^2; ]^E?;1$f?  
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Rs=abs(rs).^2; =cI(d ,  
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Rn=(Rp+Rs)/2; lA]8&+,
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Tp=1-Rp; ?s01@f#  
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Ts=1-Rs; ';CNGv -  
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Tn=(Tp+Ts)/2; -w2/w@&  
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figure(2) ftb\0,-  
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subplot(1,2,1); |Cv!,]9:r  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) pK*TE5]  
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legend('R_p','R_s','R_n') D.:Zx  
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xlabel('\theta_i') oH@78D0A  
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ylabel('Amplitude') }jXfb@`K  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O.? JmE  
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axis([0 90 0 1]) i-1op> Y  
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grid on L(-4w+  
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subplot(1,2,2); _a, s )  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) yi[x}ffdE  
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legend('T_p','T_s','T_n') 97Vtn4N3  
 mh%VrAq  
xlabel('\theta_i') 6tZI["\   
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ylabel('Amplitude') *. t^MP  
~%oR[B7=|  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) g)-te+
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axis([0 90 0 1]) Uo49*Mr  
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grid on
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2、光密射向光疏 :UdF  
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clear MD]>g>  
}JfjX'  
close all *hrd5na  
*j=% #  
n1=1.45,n2=1;
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hZ3bVi)L\  
theta=0:0.1:90; *:
1ey{w:  
'qi}|I  
a=theta*pi/180; 6*?F@D2&  
E7hhew  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $'TM0Yu,  
POW>~Tof1  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6zkaOA46V  
qR.Q,(b|  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); X]=t>
 
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); s
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figure(1) ]_Xl
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subplot(1,2,1);
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) o K@"f9  
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legend('r_p','r_s','|r_p|','|r_s|') 4 :=]<sc,  
p<2,=*2  
xlabel('\theta_i') ?upM>69{  
hph4`{T  
ylabel('Amplitude') %\DX#.  
+"(jjxJm  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,[Fb[#Qqb  
*
=n:
-  
axis([0 90 -1.5 1.5]) Qd6FH2Pl  
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grid on 4YHY7J  
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subplot(1,2,2);
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P4?glh q#  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 5uf a  
2tLJU Z1  
legend('t_p','t_s','|t_p|','|t_s|') y]imZ4{/  
D0Cy^_  
xlabel('\theta_i') 1}37Q&2  
G:JR7N$  
ylabel('Amplitude') jal-9NV)!  
9kojLqCT  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) __@BUK{q  
G`zm@QL  
axis([0 90 -0.5 3]) G j1_!.T  
[Yyk0Qv|4  
grid on />Nt[o[r  
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Rp=abs(rp).^2; ,47qw0=C  
+3`alHUK  
Rs=abs(rs).^2; zVD:#d%b  
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Rn=(Rp+Rs)/2; ExM,g'7  
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Tp=1-Rp; `kr?j:g
 
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Ts=1-Rs; W`&hp6Jq  

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Tn=(Tp+Ts)/2; @H<q"-J  
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figure(2) <1pEwI~  
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subplot(1,2,1); ?}7p"3j'z  
KU;9}!#  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) +>9Q/E  
gJhiGYx  
legend('R_p','R_s','R_n') WKU=.sY  
iO[<1?  
xlabel('\theta_i') p8Q1-T3v  
vI]N^j2%  
ylabel('Amplitude') }-fl$j?9E  
80;(Gt@<"  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &OBkevg  
Kg$Mx  
axis([0 90 0 1]) - YV>j  
ETLD$=iS  
grid on c(%|: P^  

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subplot(1,2,2); 8Eq7Sa  
s{" 2L{,$  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) z]Ue|%K  
l(q ,<[O  
legend('T_p','T_s','T_n') 2 FFD%O05  
cAc@n6[`3  
xlabel('\theta_i') d| {r5[&  
]_f<kW\1*  
ylabel('Amplitude') +M
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*#Wdc O`-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |I|fMF2K  
d/Q%IeEL.  
axis([0 90 0 1]) yWya&|D9  
F>cv<l =6l  
grid on X76e&~  
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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 pKrN:ExB"\  

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