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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 B82SAV/O  
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1、光疏射向光密 P`TJqJiY~  
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clear /j$`Cq3I  
6X[Mn2wYW  
close all (y!V0iy]  
:V ZXI#([  
n1=1,n2=1.45; vHM,_I{  
hyVBQhk  
theta=0:0.1:90; z 8y.@<6  
NGL,j\(~7  
a=theta*pi/180; =.\PG [  
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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)); 7;3;8Q FX  
v!6IH  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); B'8T+qvA  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 49-wFF  
1g>>{ y  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); e!oL!Zg  
h42dk(B  
figure(1) 't n-o  
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subplot(1,2,1); &h'NC%"v  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) o|Kd\<rY  
Rg%Xy`gS  
legend('r_p','r_s','|r_p|','|r_s|') Mt\.?V:  
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xlabel('\theta_i') Z}yd` 7  
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ylabel('Amplitude') vpz l{  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 0 `$fs.4c  
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axis([0 90 -1 1]) K:b^@>XH  
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grid on 'c#AGi9  
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subplot(1,2,2); %hi]oz  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) dZuPR  
E'^ny4gL  
legend('t_p','t_s','|t_p|','|t_s|') DqA$%b yyE  
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xlabel('\theta_i') cK\'D  
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ylabel('Amplitude') t@!A1Vr@  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) : `,#z?Rk  
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axis([0 90 0 1]) !*PX -  
Mo]aB:a  
grid on 85BB{ T;  
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Rp=abs(rp).^2; CEJqo8ds  
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Rs=abs(rs).^2; WF-^pfRq~  
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Rn=(Rp+Rs)/2; K0\`0E^,  
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Tp=1-Rp; .J?RaH{i  
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Ts=1-Rs; d?><+!a  
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Tn=(Tp+Ts)/2; U04)XfO;]  
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figure(2) Hk?E0.  
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subplot(1,2,1); 7e /Kh)5G  
FYH^axpp  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) $YK~7!!  
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legend('R_p','R_s','R_n') |T{ZDJ+  
vqo ~?9z[e  
xlabel('\theta_i') p7[&H/  
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ylabel('Amplitude') wD SSgk  
iBCIJ!;  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 0p=  
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axis([0 90 0 1]) !={QL:  
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grid on \p\rPf Y{>  
7G_OFD  
subplot(1,2,2); D66!C{  
hYh~[Kr^@^  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) qb5IpI{U  
>IHf5})R  
legend('T_p','T_s','T_n') ~PCS_  
!}HT&N8[r  
xlabel('\theta_i') x2+M0 }g  
0WAOA6 _x  
ylabel('Amplitude') Y'o.`':\~  
cS"PIelR  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }fz;La:b  
5@~5RNrq2  
axis([0 90 0 1]) {4b8s%:!4  
U &y?3  
grid on i%9xt1c_  
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[attachment=80479] Xr pnc 7  
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[attachment=80478] z>W'Ra6  
200833 2017-11-26 22:36
2、光密射向光疏 k%lz%r  
~UV$(5&-  
clear JZB@K6 ~dO  
i fbO<  
close all viR-h iD  
%q 7gl;'  
n1=1.45,n2=1; !RwOU Ck  
z8hAZ?r1`  
theta=0:0.1:90; ;]Bkw6 o  
En/EQ\T@F  
a=theta*pi/180;  6,;7iA]  
Qape DU;  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ?_7^MP>  
C| Vz `FY  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); p/!P kKJ  
AjA.="3  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *(sFr E  
JgY#W1>  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Sx3R 2-!Z  
1ti4 ZM  
figure(1) OJF41Z  
q k+(Ccl  
subplot(1,2,1); e[a?5,s2  
J#^oUq  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) m'i^BE  
E|fQbkfw  
legend('r_p','r_s','|r_p|','|r_s|') d2e4=/ A%  
7D%}( pX  
xlabel('\theta_i') ^|1)6P}6  
uY6|LTK&x  
ylabel('Amplitude') z3:tSjF  
mt(2HBNoz  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) EecV%E  
PV_q=70%T  
axis([0 90 -1.5 1.5]) `Mxi2Y{vp  
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grid on c$>$2[*=  
\Y{^Q7!>:8  
subplot(1,2,2); oHbG-p  
9 ZD4Gv   
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) *l[;g  
?Hd/!I&  
legend('t_p','t_s','|t_p|','|t_s|') Tl9;KE|  
m%bw$hr  
xlabel('\theta_i') dk^Uf84.Gr  
fQ,L~:Y =  
ylabel('Amplitude') a\Ond#1p  
}sm PP*  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4{s3S2f =  
|aT&rpt   
axis([0 90 -0.5 3]) Ae0jfTv  
x@ZxV*T^  
grid on x dT1jI  
uq>\pO&P  
Rp=abs(rp).^2; ue5C ]  
J\BTrN7  
Rs=abs(rs).^2; 5VU 5kiCt  
KL8G2"Z  
Rn=(Rp+Rs)/2; |Mj2lZS  
._uXK[c7P  
Tp=1-Rp; ya<nD'%9  
<Oi65O_X  
Ts=1-Rs; 5u<F0$qHc  
H}R/_5g  
Tn=(Tp+Ts)/2; P9Yw\   
w&vZ$n-|  
figure(2) XA&Vtgu  
X#bK.WN$  
subplot(1,2,1); J-6l<%962%  
H+ P&} 3  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) m44"qp  
M@k8;_5  
legend('R_p','R_s','R_n') r9nyEzk  
kq{PM-]l  
xlabel('\theta_i') ^V1.Y  
hu ]l{TXi  
ylabel('Amplitude') EO&PabZWR  
Hwz.5hV"  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) V<:)bG4;d  
FO"sE`  
axis([0 90 0 1]) \]j{  
|61W-9;  
grid on MO_-7,.y  
wWVLwp4-  
subplot(1,2,2); ^=CO gO]e  
A~@u#]]<n  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) '%W`:K'  
6m~N2^z  
legend('T_p','T_s','T_n') U_&v|2o#3  
0SHF 8kek  
xlabel('\theta_i') `kRv+Qwfa  
5DI&pR1eZ  
ylabel('Amplitude') 7;8#iS/  
g'%^-S ]  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^$D2fS  
+o4W8f=Ga  
axis([0 90 0 1]) tO@n3"O  
f4 [Bj{F  
grid on RT~6#Caf  
=SUCcdy&  
[attachment=80481] Qy!;RaA3T  
i?+>,r@\p  
[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 :!WKD@]  
jabil 2025-03-07 09:40
Thanks
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