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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 GYx0U8MJ[e  
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1、光疏射向光密 Dz: +. @k  
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clear Lj3o-@\*j  
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close all ?b,>+v-w::  
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n1=1,n2=1.45; E7fQ9]  
a)JXxst  
theta=0:0.1:90; =Z  
fz=?QEG  
a=theta*pi/180; W5 F\e[Ax5  
z#GZb   
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); eo0-aHs  
m!/TJhiQ  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 2K91E}  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); tp] 5[U  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); B-Jd|UE`u  
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figure(1) 'w+]kt-  
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subplot(1,2,1); Y[6T7eZ0g  
t]LiFpy2IC  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ^HSxE  
[CI&4) #  
legend('r_p','r_s','|r_p|','|r_s|') il5C9ql$  
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xlabel('\theta_i') NUFz'MPv  
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ylabel('Amplitude') !CGX\cvW  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Tn}`VW~  
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axis([0 90 -1 1]) !%G]~  
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grid on 6{y7e L3!  
|h]V9=  
subplot(1,2,2); d. wGO]"  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) !g|O.mt  
h<G4tjtk  
legend('t_p','t_s','|t_p|','|t_s|') Ga7E}y%  
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xlabel('\theta_i') _!03;zrO  
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ylabel('Amplitude') +~^S'6yB  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) c{=Sy;i@  
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axis([0 90 0 1]) 2LwJ%!  
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grid on (9]Uuvfp6"  
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Rp=abs(rp).^2; +0pI}a\  
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Rs=abs(rs).^2; NIV}hf YF  
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Rn=(Rp+Rs)/2; <Vhd4c  
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Tp=1-Rp; )eyzHB,H  
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Ts=1-Rs; axC|,8~tq  
*()['c#CC  
Tn=(Tp+Ts)/2; ],]Rv#`  
%B%_[<B  
figure(2)  T~[:oil  
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subplot(1,2,1); +4?Lwp'q  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Fw<"]*iu  
NL9.J @"b  
legend('R_p','R_s','R_n') uavATnGO{B  
 +A3/^C0  
xlabel('\theta_i') 5|H;%T 3_  
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ylabel('Amplitude') $C[z]}iOi  
hi8q?4jE  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >XgoN\w  
u[GZ~L  
axis([0 90 0 1]) ^j<v~GT x+  
?qjdmB|w  
grid on ]v ${k  
Z<vz%7w  
subplot(1,2,2); t ed:]  
J6Ilg@}\  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 'm`O34h  
HWjJ.;k}a  
legend('T_p','T_s','T_n') 7<j!qWm0  
lx`?n<-X  
xlabel('\theta_i') K"!rj.Da  
aq?bI:>8  
ylabel('Amplitude') tiK M+ ;C  
DsdM:u*s  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5{! fa  
)PN8HJAArh  
axis([0 90 0 1]) P27Ot1px  
Thggas,  
grid on o-<i+To%  
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[attachment=80479] yX&# rI  
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200833 2017-11-26 22:36
2、光密射向光疏 maa pX/J  
oiyvKMHz7  
clear #aqnj+  
>@N.jw>#T  
close all ( fFrX_K]  
Ijh RSrCv  
n1=1.45,n2=1; =-dnniKW4  
f} c;s  
theta=0:0.1:90; /E6)>y66  
11PL1zzH  
a=theta*pi/180; JQ+Mg&&Q  
KDN#CU  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); \KV.lG!  
kHK<~srB  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 7] y3<t  
+C=vuR  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); lg|6~=aQ  
i3 js'?7E  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); lr&2,p<  
XU'(^Y8Imz  
figure(1) jnV#Q ;  
ca=MUm=B  
subplot(1,2,1); Kj0)/Fjl+  
}Z <I%GT  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) &tOo[U?  
rbf5~sw&8+  
legend('r_p','r_s','|r_p|','|r_s|') h x^@aI  
&wNr2PHd#  
xlabel('\theta_i') zZ}. 2He8  
m#h`iW  
ylabel('Amplitude') R/{h4/+vJ  
#|\|G3Si %  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) *42KLns  
CQ!D{o=  
axis([0 90 -1.5 1.5]) PCCE+wC6  
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grid on ]FR#ZvM>x  
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subplot(1,2,2);  !5 S#  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) jzi%[c<G  
`c:r`Oi?  
legend('t_p','t_s','|t_p|','|t_s|') ufR|V-BWx  
H~[q<ybxr  
xlabel('\theta_i') 5!Er ;e  
(fc_V[(m"  
ylabel('Amplitude') ""`z3-  
UXSwd#I&  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Ds=d~sNu  
# wn>S<  
axis([0 90 -0.5 3]) z%fjG}z  
V^(W)\  
grid on s#~VN;-I  
!le#7Kii  
Rp=abs(rp).^2; + fvVora  
FkMM>X  
Rs=abs(rs).^2; ;180ct4  
oKRI2ni$j9  
Rn=(Rp+Rs)/2;  uvDOTRf  
7\dt<VV  
Tp=1-Rp; w_@6!zm  
*`s*l+0b  
Ts=1-Rs; :CM2kh"Iu  
Z'AjeZyyE  
Tn=(Tp+Ts)/2; m%U=:u7#M  
`34+~;;Jh  
figure(2) B"7~[,he  
5G<`c  
subplot(1,2,1); n~,6!S  
y]Q/(O  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Kd}%%L  
M7DoAS{6e  
legend('R_p','R_s','R_n') b#(QZ  
/0L]Pf;  
xlabel('\theta_i') ^(*eoe  
~ LH).\V  
ylabel('Amplitude')  X56.Y.  
'fb&3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $9@Z\0   
p,4S?c r>a  
axis([0 90 0 1]) j"0TAYmXwu  
DUf . F  
grid on X?8bb! g%Q  
ZU:c[`  
subplot(1,2,2); CIR2sr0a  
qE^u{S4Z@  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) <SRSJJR|(  
wh]v{Fi'  
legend('T_p','T_s','T_n') <t*3w  
s 4 Uk5<  
xlabel('\theta_i') T.!.3B$@]  
c*8k _o,  
ylabel('Amplitude') )q7!CG'oY  
_h B7;N3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) B3u:D"t  
'kCr1t  
axis([0 90 0 1]) &53LJlL Co  
V=GP_^F  
grid on Yu9(qRK  
M/6q ^*  
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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 Sy`7})[  
jabil 2025-03-07 09:40
Thanks
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