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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 _ML~c&9jv  
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1、光疏射向光密 V`\f+Uu  
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clear nF<y7XkO  
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close all i.t9jN  
>4/L-y+  
n1=1,n2=1.45; 28R>>C=R  
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theta=0:0.1:90; c',:@2R  
qEJ8o.D-=  
a=theta*pi/180; ZSXRzH~0  
;4G\]%c)E{  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 3kiE3*H  
xIQ/$[&v  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 2]D$|M?$~  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); b6nZ55 h  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); m-ph}  
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figure(1) %i$M/C"(  
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subplot(1,2,1); )@]6=*%  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 7G.o@p6$  
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legend('r_p','r_s','|r_p|','|r_s|') DD!MGf/  
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xlabel('\theta_i') 6F*-qb3  
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ylabel('Amplitude') Q(|PZn g  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) U~:N^Sc  
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axis([0 90 -1 1]) M3Khc#5S(  
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grid on k0|`y U  
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subplot(1,2,2); d>%gW*  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) YDQ:eebg(  
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legend('t_p','t_s','|t_p|','|t_s|') A~Z6jK  
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xlabel('\theta_i') iq"ob8.  
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ylabel('Amplitude') TB7>s~)47E  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) k"xGA*B|  
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axis([0 90 0 1]) Fe!D%p Qv  
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grid on /g_9m  
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Rp=abs(rp).^2; #`W=m N(+k  
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Rs=abs(rs).^2; vQ:wW',i  
z]kwRWe`j  
Rn=(Rp+Rs)/2; KH7VR^;mk  
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Tp=1-Rp; ^SZw`]  
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Ts=1-Rs; NS`07#z^  
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Tn=(Tp+Ts)/2; opsQn\4DZ?  
z{S:X:X  
figure(2) t\h$&[[l'z  
sI_7U^"[  
subplot(1,2,1); $ +;+:K  
w|IjQ1{  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) :Sr?6FPc  
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legend('R_p','R_s','R_n') x^G'rF"nT  
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xlabel('\theta_i') -LtK8wl^  
C5xag#Z1  
ylabel('Amplitude') (n,u|}8Y  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _;56^1'T  
:.k ZR;  
axis([0 90 0 1]) !b8uLjd;  
 qve ./  
grid on bu>qsU3  
jMM$d,7B  
subplot(1,2,2); H~noJIw#  
nVE9^')8V  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 0Vkl`DmeM.  
9'?se5\  
legend('T_p','T_s','T_n')  v,=v  
G8nrdN-9  
xlabel('\theta_i') c.A Yx I"  
UiH!Dl}<  
ylabel('Amplitude') A4.4Dji,x  
-(i(02PX  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) `ltN,?/  
&?0:v`4Y  
axis([0 90 0 1]) *wuqa) q2  
%f j+70  
grid on Z:*@5  
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[attachment=80479]  8"%RCE  
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200833 2017-11-26 22:36
2、光密射向光疏 33'Y[4  
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clear =^&%9X  
]0c+/ \b&  
close all 08s_v=cF  
eg/<[ A:  
n1=1.45,n2=1; 6KHN&P  
`Out(Hn  
theta=0:0.1:90; ujFzJdp3k  
QSw<%pcJE@  
a=theta*pi/180; /ASaB  
*T`-|H*6@  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); P`$!@T0=  
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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)); : i~W } r  
b|xpNd-  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); }|\d+V2On  
#3$\Iu  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ke_ [  
6E ~g#(8  
figure(1) r%@Lej5+  
dq\FBwfe  
subplot(1,2,1); vI1i, x#i  
r H8@69,B  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) {ZU1x C  
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legend('r_p','r_s','|r_p|','|r_s|') ;5_{MCPM  
t5B7I59  
xlabel('\theta_i') 2P#=a?~[  
}t9.N`xu  
ylabel('Amplitude') ^3VR-u<O  
r]@0eb   
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) S! Rc|6y%  
$ _j[2EU  
axis([0 90 -1.5 1.5]) KRAcnY;u  
dU)]:>Uz  
grid on =m89z}Ot  
VKp*9%9  
subplot(1,2,2); Tm}rH]F&  
U>Ld~cw  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) o+w;PP)+=  
fyTAou6hI  
legend('t_p','t_s','|t_p|','|t_s|') e^p +1-B  
(jjTK'0[  
xlabel('\theta_i') qgIb/6;xQ  
7ELMd{CD  
ylabel('Amplitude') ^d}gpin  
l^GP3S  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Hnknly  
K 0gI):  
axis([0 90 -0.5 3]) PyVC}dUAX  
m>USD? i  
grid on o#) {1<0vg  
CTX9zrY*T  
Rp=abs(rp).^2; qm/Q65>E  
ZkL8e  
Rs=abs(rs).^2; :B3[:MpL}  
Q!- 0xlx  
Rn=(Rp+Rs)/2; v+p {|X-  
)?_#gLrE6  
Tp=1-Rp; &'cL%.  
X%z }VA  
Ts=1-Rs; V7#v6!7A@  
{{V8;y  
Tn=(Tp+Ts)/2; |*Z$E$k:  
? WJ> p  
figure(2) 7Q\|=$2  
4tL<q_  
subplot(1,2,1);  _zlqtO  
HeBcT^a  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) DZzN>9<)^  
oFOnjK"|F  
legend('R_p','R_s','R_n') +"9hWb5  
RMMd#/A@}  
xlabel('\theta_i') }Zl&]e  
dJ$"l|$$  
ylabel('Amplitude') @`\VBW  
$kR N h6  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) *s@Qtgu  
74!oe u.>  
axis([0 90 0 1]) Kw#so; e  
/cc\fw1+  
grid on  >S$Z  
U,nEbKJgk  
subplot(1,2,2); ~?B;!Csk  
ge]STSM0n7  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) y% :4b@<  
y:v,j42%  
legend('T_p','T_s','T_n') 6e&>rq6C  
J2uZmEt  
xlabel('\theta_i') jxYc2  
v\(2&*  
ylabel('Amplitude') Q:J^"  
 i2~  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) s-dLZ.9F  
'X shmZ0&  
axis([0 90 0 1]) N},n `Yl.  
$-[CG7VgX%  
grid on /x3/Ubmz~x  
i<pk6rO1  
[attachment=80481] T|tOTk  
j0@[Br%7  
[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 !Kv@\4  
jabil 2025-03-07 09:40
Thanks
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