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200833 2017-11-26 22:33

利用MATLAB光学仿真(1)

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 _=Eb:n+X  
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1、光疏射向光密 iKVJ c=C  
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clear )%6h9xyXt  
Zai:?%^  
close all oWP3Y.  
_Xe" +  
n1=1,n2=1.45; Ui43&B  
[zw0'-h.  
theta=0:0.1:90; H-g CY|W  
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a=theta*pi/180; 9!u&8#i  
# ^q87y  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); x Rp;y*  
/T\'&s3D+  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 921m'WE  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 9:v0gE+.  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 62D UF  
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figure(1) w40 -K5wt>  
Wq"5-U;:w  
subplot(1,2,1); !$Whftg  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ,CED%  
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legend('r_p','r_s','|r_p|','|r_s|') Ss$/Bh>hN  
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xlabel('\theta_i') H)rE-7(f!  
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ylabel('Amplitude') |1/UC"f  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]Dd}^khv  
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axis([0 90 -1 1]) sL",Ho  
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grid on 2qgm(jo *y  
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subplot(1,2,2); SsBiCctn  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) [yn\O=%5  
x;@wtd*QB  
legend('t_p','t_s','|t_p|','|t_s|') K*sav?c  
/BQB7vL  
xlabel('\theta_i') De^Uc  
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ylabel('Amplitude') +L hV4@zC  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <_ruVy0]  
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axis([0 90 0 1]) r- 8fvBZ5  
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grid on ; nc3O{rU  
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Rp=abs(rp).^2; Em]2K:  
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Rs=abs(rs).^2; FnWN]9  
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Rn=(Rp+Rs)/2; uFYcVvbT@  
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Tp=1-Rp; h]>7Dl]  
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Ts=1-Rs; ?8-ho0f0  
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Tn=(Tp+Ts)/2; EN/r{Cm$B  
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figure(2) Msst:}QY  
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subplot(1,2,1); F&u)wI'  
k{C03=xk  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) :um]a70  
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legend('R_p','R_s','R_n') M97MIku~9  
bR'UhPs-8;  
xlabel('\theta_i') A/sM ?!p>_  
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ylabel('Amplitude') ` #; "  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) d=eIsP'h  
oxNQNJ!X  
axis([0 90 0 1]) ;:1o|>mX  
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grid on !6FO[^h||H  
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subplot(1,2,2); ~s2la~gu  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 0BP Ubp(  
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legend('T_p','T_s','T_n') w&x$RP  
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xlabel('\theta_i') 821;;]H  
qGdoRrp0Ov  
ylabel('Amplitude') #c$z&J7e  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) agd^ga3  
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axis([0 90 0 1]) yYiu69v  
S*V!t=  
grid on SNc$!  
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[attachment=80478] \p#_D|s/Ep  
200833 2017-11-26 22:36
2、光密射向光疏 .`jYrW-k  
heScIe N^`  
clear a FL; E  
.'bhRQY  
close all 0M!GoqaA  
1ZY~qP+n+  
n1=1.45,n2=1; +!mEP>  
k [iT']  
theta=0:0.1:90; R(f6uO!m  
elz0t<V  
a=theta*pi/180; \)i,`bz  
>%LY0(hY3  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); IZBY*kr  
{uurLEe?  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); q!{>Nlk  
XD Q<28^  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *tfD^nctO  
D2I|Z  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); <"yL(s^u"  
?2,{+d |  
figure(1) M9Xq0BBu  
ajW2HH*9}A  
subplot(1,2,1); x/0loW?q^  
sGx3O i   
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) W'6sY@0m  
L *cP8v4  
legend('r_p','r_s','|r_p|','|r_s|') Xi;<O&+  
Vwb_$Yi+]  
xlabel('\theta_i') C{~O!^2G  
mrBK{@n  
ylabel('Amplitude') ;;+h4O )  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Z1_F)5pn  
fr`Q 5!0  
axis([0 90 -1.5 1.5]) g(i8HU*{q  
]3~ u @6  
grid on xnHB <xrE}  
Ygc|9}  
subplot(1,2,2); [I}z\3Z %  
mpQu:i|W  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) _9'hmej  
^!z(IE'  
legend('t_p','t_s','|t_p|','|t_s|') 2"c5<  
 U4qk<!  
xlabel('\theta_i') 8nwps(3  
Zv(6VVj  
ylabel('Amplitude') i,t!17M:  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) jVh:Bw  
z[@i=avPG  
axis([0 90 -0.5 3]) F\^\,hy  
2#ZqGf.'v  
grid on gq@8Z AWn  
$%4<q0-  
Rp=abs(rp).^2; iH~A7e62OZ  
1Vc~Sa  
Rs=abs(rs).^2; =~5N/!  
hM[3l1o{|  
Rn=(Rp+Rs)/2; j{D tjV8  
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Tp=1-Rp; 0f@9y  
+d7 Arg!m  
Ts=1-Rs; y06xl:iQwF  
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Tn=(Tp+Ts)/2; 5nTcd@lX  
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figure(2) ,.h@tN<C  
5{#s<%b.  
subplot(1,2,1); T+B8SZw#}!  
/;{L~f=et)  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) u-tD_UIck  
5=I"bnIU  
legend('R_p','R_s','R_n') yFS{8yrRUU  
,SNt*t1"  
xlabel('\theta_i') [4aw*M1z}.  
R.DUfU"gp  
ylabel('Amplitude') yPY{ZADkQ  
G:y+yE4  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Sk)lT^by  
oz]&=>$1I  
axis([0 90 0 1]) q"oNFHYPDs  
o';/$xrH  
grid on UR9\g(  
l}r9kS  
subplot(1,2,2); ^do6?e`?-  
8!HB$vdw7  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 7 \[fjCg\w  
bwcr/J( Nb  
legend('T_p','T_s','T_n') t\ a|Gp W  
2i;ox*SfpU  
xlabel('\theta_i') FD&^nJ_{  
q VI0?B x  
ylabel('Amplitude') aC%Q.+-t  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3~V .  
~MXhp5PI   
axis([0 90 0 1]) IF-y/]  
# 5U1F[  
grid on #HW<@E  
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[attachment=80481] U]w"T{;@.)  
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[attachment=80480]
大博归来 2017-11-27 08:03
感谢楼主分享
hit2011 2017-12-02 14:58
这个在《MATLAB在光学中的应用》这本书里都有
direwolf100 2017-12-05 22:34
谢谢了楼主分享
jabil 2022-03-07 13:54
thanks
cici2015 2022-08-03 07:32
谢谢了楼主分享
13428299720 2023-07-21 20:02
学习学习
lalallaal 2025-02-28 10:13
学习学习 jBOl:l,+  
jabil 2025-03-07 09:40
Thanks
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