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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 Y!oLNGY  
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1、光疏射向光密 E"VF BKB  
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clear L(C`<iE&3  
$m#^0%  
close all J)n_u),  
E\DA3lq  
n1=1,n2=1.45; l 3p :}A  
3 e'6A^#  
theta=0:0.1:90; O=+$X Pa|  
SWx: -<  
a=theta*pi/180; JMt*GFd  
(eU4{X7  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 'I/_vqp@  
|?VJf3 A  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Dh8'og)7  
9o5D3 d K  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); MuOKauYa  
=3(Auchl$Y  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); `K5*Fjx  
T 'c39  
figure(1) wjl)yo$z  
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subplot(1,2,1); 3E*m.jX  
gep#o$P  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Gu~*ZKyJ  
l~;>KjZg  
legend('r_p','r_s','|r_p|','|r_s|') i:aW .QZ.  
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xlabel('\theta_i') rWL;pM<  
o5a=>|?p>  
ylabel('Amplitude') ?v M9 !  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) X8ap   
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axis([0 90 -1 1]) 6qZ\^ U  
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grid on TC/c5:)]  
BJUj#s0$  
subplot(1,2,2); D BHy%i  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) &$/ #"lW,V  
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legend('t_p','t_s','|t_p|','|t_s|') * $f`ouJl  
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xlabel('\theta_i') @/<UhnI  
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ylabel('Amplitude') (|^m9v0:  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O<cP1TF  
@Iz]:@\cJ  
axis([0 90 0 1]) 4`#Q  
7v%c.  
grid on -n05Z@7  
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Rp=abs(rp).^2; v,ssv{gU  
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Rs=abs(rs).^2; EpAgKzVpJ  
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Rn=(Rp+Rs)/2; =Hd yra  
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Tp=1-Rp; C")genMH  
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Ts=1-Rs; TsTc3  
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Tn=(Tp+Ts)/2; Kn~Rck| ]  
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figure(2) !e|\1v'0  
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subplot(1,2,1); |EE1S{!24m  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 4qie&:4j  
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legend('R_p','R_s','R_n') -)}s{[]d6m  
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xlabel('\theta_i') sApix=Lr  
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ylabel('Amplitude') u;_~{VJ-  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) dDPQDIx  
5Kg'&B (  
axis([0 90 0 1]) "@UQSf,  
OT{"C"%5t  
grid on lxL5Rit@Px  
B3#G  
subplot(1,2,2); 3xChik{  
3 ~v 17  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) sasurR|;  
lgOAc,  
legend('T_p','T_s','T_n') *|A QV:  
I'uwJy_I\  
xlabel('\theta_i') Tz]R}DKB&  
!__0Vk[s  
ylabel('Amplitude') ,S-h~x  
@RoZd?  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) KrE 'M  
X06Lr!-%  
axis([0 90 0 1]) L!fTYX#K]  
s\ -,RQ1  
grid on po*G`b;v  
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[attachment=80479] \/NF??k,jk  
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[attachment=80478] C ^Y\?2h1  
200833 2017-11-26 22:36
2、光密射向光疏 =gB5JB<}2  
{a7~P0$  
clear oh9 ;_~  
W: ]FYC  
close all ~e{ @5.g  
_wq?Pa<)e  
n1=1.45,n2=1; -JMn?]  
NQ9v[gv  
theta=0:0.1:90; O`5,L[i1y  
.Bm%  
a=theta*pi/180; WgtLKRZ\  
<)VgGjZ-H  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 6}4})B2  
QU).q65p  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); d#ir=+o{h  
}47h0 i  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); eVXXn)>  
Ed9Uw 7  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); "s+4!,k  
v4P"|vZ$&  
figure(1) .G0 N+)  
5~*)3z^V  
subplot(1,2,1); /(N/DMl[  
J +6zV m  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Rr )+M3'  
*3GV9'-P  
legend('r_p','r_s','|r_p|','|r_s|') 4U}qrN~=  
yeo&Qz2vU  
xlabel('\theta_i') =6%oW2E\  
'%NglC[J  
ylabel('Amplitude') 8t-GsjHb  
oaoTd$/5  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =CX1jrLZ  
&.?XntI9O  
axis([0 90 -1.5 1.5]) y>^a~}Zq  
]\$/:f-2  
grid on a)qan  
ks '>?Dw  
subplot(1,2,2); 7u):J  
25^?|9o7  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) -fR :W{u  
ZO0 Ee1/  
legend('t_p','t_s','|t_p|','|t_s|') WyL+HB}  
[|}IS@  
xlabel('\theta_i') \;LDE`Q_x  
P]_d;\ !"v  
ylabel('Amplitude') "}4%vZz  
:=*de Z<  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) )Fw/Cu  
+.G"ool  
axis([0 90 -0.5 3]) qWt}8_"  
t}EM X9SQ  
grid on N ##`  
qUe _B  
Rp=abs(rp).^2;  6@S6E(^  
>DqF>w.1  
Rs=abs(rs).^2; gq?:n.;TY  
M>8J_{r^  
Rn=(Rp+Rs)/2; M6Fo.eeK3  
JKfG/z|  
Tp=1-Rp; 6b|?@  
 C0rf  
Ts=1-Rs; _T=g?0 q  
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Tn=(Tp+Ts)/2; '%)R}wgV  
VJh8`PVX  
figure(2) /?\3%<vn  
U)S=JT~h  
subplot(1,2,1); tYS4"Nfb+  
Wboh2:TH:  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) " qI99e  
DL]tg [w{  
legend('R_p','R_s','R_n') v9$!v^U"D  
H=r-f@EOrI  
xlabel('\theta_i') <=uYfi3,  
ab0 Sx  
ylabel('Amplitude') *6uccx7{  
WzMYRKZ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) FhE{khc#  
~6vz2DuB=  
axis([0 90 0 1]) M>Q]{/V7T  
+Y\:Q<eMFg  
grid on 6|TSH$w_  
1GY2aZ@  
subplot(1,2,2); J 3!~e+wn  
*[Hrbln  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) XQ}Zr/f6  
S{Y zHK  
legend('T_p','T_s','T_n') )Q)qz$h@  
tAX* CMW  
xlabel('\theta_i') *bkb-n Kw  
IThd\#=  
ylabel('Amplitude') ?RRO  
:Pud%}'  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n ]ikc|  
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axis([0 90 0 1]) >rnVT K  
74s{b]jN'-  
grid on _|HhT^\P  
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[attachment=80481] >1y6DC  
 8*ZsR)!  
[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 7*:zN  
jabil 2025-03-07 09:40
Thanks
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