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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 ic}TiTK  
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1、光疏射向光密 22ySMtxn  
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clear &2%|?f|  
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close all *[i49X&rd  
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n1=1,n2=1.45; myVa5m!7Q  
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theta=0:0.1:90; ,%A|:T]  
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a=theta*pi/180; UsA fZg8  
fp(zd;BSQ  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *otgI"y\  
]iW:YNvXA  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); }oiNgs/N  
' A+L #  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); y:Gn58\o  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ]8"U)fzmc.  
aso8,mpZuA  
figure(1) 7jxx,#I:  
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subplot(1,2,1); )w<Z4_!N4s  
2[=3-1c  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) !#%>,X#+  
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legend('r_p','r_s','|r_p|','|r_s|') $"( 15U  
s8's(*]  
xlabel('\theta_i') h|PC?@jp  
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ylabel('Amplitude') a-S tOO5s  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) WC=d @d)M  
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axis([0 90 -1 1]) qs\Cwn!  
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grid on 21Dc.t{  
fwA8=o SZd  
subplot(1,2,2); 8oI|Z=  
x'\C'zeF  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) du ~V=%9  
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legend('t_p','t_s','|t_p|','|t_s|') a}FY^4hl+  
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xlabel('\theta_i') 5_](N$$  
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ylabel('Amplitude') \1<|X].jNY  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #Ff8_xhP2  
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axis([0 90 0 1]) opm_|0  
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grid on EAXl.Y. $  
'oY#a9~Z{  
Rp=abs(rp).^2; <FU?^*~  
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Rs=abs(rs).^2; + a nsN~3  
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Rn=(Rp+Rs)/2; uY>M3h#qx  
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Tp=1-Rp; N>*+Wg$Ne  
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Ts=1-Rs; Pf,@U'f|  
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Tn=(Tp+Ts)/2; /RqWrpzx@  
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figure(2) = &pLlG  
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subplot(1,2,1); Mh~}RA"H  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) _ {wP:dI "  
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legend('R_p','R_s','R_n') 2'-"&d+ O  
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xlabel('\theta_i')  6(-s@{  
4c(Em+ 4  
ylabel('Amplitude') A&Aj!#  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >L!c} Ku  
I_z(ft.  
axis([0 90 0 1]) 3BCD0 %8  
pk.\IKlG]  
grid on 7pY :.iVO  
wxc#)W  
subplot(1,2,2); &R@([=1  
yCN_vrH>  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 3Y2~HuM  
}kr?+)wB  
legend('T_p','T_s','T_n') /<8y>  
HLwMo&*rA  
xlabel('\theta_i') zM=MFKhi ~  
/qIl)+M  
ylabel('Amplitude') Pb8@owG8  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [F-GaaM  
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axis([0 90 0 1]) n8F5z|/  
%2 zmc%]r  
grid on S$Zi{bU`G  
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200833 2017-11-26 22:36
2、光密射向光疏 @0@ZlH wM  
:+PE1=v  
clear + tMf&BZ  
Q&I`uS=F  
close all A'KH_])  
,?|$DY+=  
n1=1.45,n2=1; yzhNl' Rz  
v wEbGx  
theta=0:0.1:90; \\FT.e6  
G7nhUg  
a=theta*pi/180; <ErX<(0`ig  
, [|aWT%9  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); MY@&^71i4  
zd=O;T;.  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); _rwJ: r  
Y/FPkH4  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); r!2U#rz  
z~ C8JY:  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ;Y^'$I2fR#  
RPW46l34  
figure(1) c;$ 4}U4  
06S R74  
subplot(1,2,1); f_jhQ..g<g  
cl%+m  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) x)~i`$  
H3D<"4Q>  
legend('r_p','r_s','|r_p|','|r_s|') aaR& -M@  
h)HEexyRg  
xlabel('\theta_i') -[=eVS.2%  
nMyl( kF[  
ylabel('Amplitude') Mqr_w!8d  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) "0An'7'm  
Wb-C0^dTn  
axis([0 90 -1.5 1.5]) p%3z*2,(  
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grid on RRIh;HhX  
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subplot(1,2,2); 0ra'H/>Ly  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) K($l>PB,y@  
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legend('t_p','t_s','|t_p|','|t_s|') J-v1"7[2GC  
$a M5jH<  
xlabel('\theta_i') X8$i*#D  
JLoF!MK}  
ylabel('Amplitude') <q'l7 S  
zt(lV  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /;*_[g5*i  
,CfslhO{j  
axis([0 90 -0.5 3]) 51jgx,-|$  
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grid on 9n& &`r  
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Rp=abs(rp).^2; 94"+l@K  
h'y%TOob  
Rs=abs(rs).^2; Y[{:?i~9,  
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Rn=(Rp+Rs)/2; 0gd`W{YP  
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Tp=1-Rp; wjA wJOw|  
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Ts=1-Rs; )+G"57p  
xZ'fer`&  
Tn=(Tp+Ts)/2; TN(Vzs%  
iW5cEI%tb  
figure(2) $w0TEO!  
EeW ,-I  
subplot(1,2,1); :@((' X(".  
@/ z\p7e  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) xXe3E&  
+Nt4R:N  
legend('R_p','R_s','R_n') 5Gz!Bf@!!  
M/N8bIC! Q  
xlabel('\theta_i') v:t;Uk^Y  
Vrt$/ d  
ylabel('Amplitude') JrzPDb`m  
$1yO Zp5  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) fiGTI}=P  
}"D;?$R!  
axis([0 90 0 1]) Bs"D<r&ro  
(dy(.4W\  
grid on p*;!5;OUR  
aAg Qv*  
subplot(1,2,2); ;b<w'A_1  
GX>8B:]o|  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 9&lemz  
Coi[cfg0  
legend('T_p','T_s','T_n') 8A>OQR  
B7%K}|Qg  
xlabel('\theta_i') :zY4phR  
2W,9HSu8  
ylabel('Amplitude') r,6~%T0  
}y(t')=9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ] ZV[}7I.  
4MgN  
axis([0 90 0 1]) %U\,IO`g  
q0.!T0i  
grid on c!EA>:;(<  
x[0T$  
[attachment=80481] H*=cw<  
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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 vu( 5s  
jabil 2025-03-07 09:40
Thanks
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