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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 !L +b{  
N5W!(h)  
1、光疏射向光密 !]?kvf-3e  
'-(Z.e~e  
clear v~x`a0  
#-b}QhxH  
close all j0"4X  
^PC;fn,I  
n1=1,n2=1.45; "%Ief4  
B4HMs$>   
theta=0:0.1:90; 7*K2zu3  
3w>1R>7  
a=theta*pi/180; KtJc9dnX  
EPwU{*F  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); N G vb]  
y%9Hu  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); +P+h$gQ  
2f{p$YIt  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 1Z?uT[kR  
` >>]$ZJ  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); S@[NKY  
E3{kH 7_'\  
figure(1) [T9]q8"  
9s!R_R&W.  
subplot(1,2,1); 14l6|a  
KXz7l\1Gb  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) K}N~KDW R|  
5w~ 0Q  
legend('r_p','r_s','|r_p|','|r_s|') \' zloBU  
Wm}T=L`  
xlabel('\theta_i') fHwS12SB  
@:Ft+*2  
ylabel('Amplitude') #zgO_ H  
=oq=``%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) toU<InN  
*6][[)(  
axis([0 90 -1 1]) 9Y:.v@:}0  
sSk qU  
grid on +2p}KpOsL  
iZ/iMDfC  
subplot(1,2,2); XR<g~&h  
a6A~,68/V  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) sUQ Q/F6  
J0f!+]~G3  
legend('t_p','t_s','|t_p|','|t_s|') f`rI]v|@  
*q\>DE=7  
xlabel('\theta_i') s`G}MU  
?MfwRWY  
ylabel('Amplitude') > Xij+tt{  
uT=5zu  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) X>pCkGE  
#}Xsi&:XU  
axis([0 90 0 1]) SY:ISzB}  
`PeC,bp  
grid on a-nn[ j  
+~:OUR*>  
Rp=abs(rp).^2; LOG>x!  
5-H"{29  
Rs=abs(rs).^2; C%ZPWOc_8  
']sj W'~  
Rn=(Rp+Rs)/2; b?!S$Sxz  
xh#pw2v7V  
Tp=1-Rp; p)z#%BY56  
UxF9Ko( ]d  
Ts=1-Rs; 9s7TLT k  
b>#=7;  
Tn=(Tp+Ts)/2; nWK7*  
; bHS^  
figure(2) {61Y;  
sk:B; .z  
subplot(1,2,1); O0_RW`69  
#Jp|Cb<qx  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) (F3R!n  
^qVBgBPb  
legend('R_p','R_s','R_n') A@:U|)+4  
x TH3g^E  
xlabel('\theta_i') KW ZEi?  
3xdJ<Lrq  
ylabel('Amplitude') W1LR ,:$  
d0Ubt  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +7AH|v8  
([^f1;ncm  
axis([0 90 0 1]) @Cx goX^  
4#:Eq=(W  
grid on #W.vX=/*  
yc`3)  
subplot(1,2,2); fz8 41 <Y  
VfDa>zV3  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) \L}7.fkb8  
4b, +;  
legend('T_p','T_s','T_n') Hr7pcz/#l  
r1}1lJ>7H  
xlabel('\theta_i') 3Of!Ykf=  
MR5[|kHJT  
ylabel('Amplitude') (J%>{?"ij  
;R<V-gab  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) gq4X(rsyD  
to1r 88X  
axis([0 90 0 1]) s%>8y\MaK  
\!w |  
grid on P*U^,Jh<  
>M##q?.  
[attachment=80479] PY3bn).uR  
o Q*LP{M  
[attachment=80478] 6V@_?a-K  
200833 2017-11-26 22:36
2、光密射向光疏 CBpwtI>p  
^|hVFM2  
clear vfXNN F  
k\dPF@~Hvl  
close all &#gh :5  
rKT.~ZP\  
n1=1.45,n2=1; wf\7sz  
D:z_FNN  
theta=0:0.1:90; WB<MU:.Vc  
FgrVXb_q  
a=theta*pi/180; "!eq~/nk  
@de0)AJG6  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); /iAhGY  
:qj;f];|  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); \1n (Jr.<  
H5 :,hrZY  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Zg>]!^X8  
2m*/$GZ  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Z5*(xony0  
* {~`Lw)y  
figure(1) [?qzMFb  
19pFNg'kA  
subplot(1,2,1); ^K_FGE0ec  
%W=BdGr[8z  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) VN\VTSZh?\  
PBFpV8P,  
legend('r_p','r_s','|r_p|','|r_s|') SXO.|"M  
ue@W@pj  
xlabel('\theta_i') #Ak|p#7 ^  
oR,zr  
ylabel('Amplitude') qdmAkYUC  
""|;5kJS4  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :=5X)10  
1w7XM0SHcn  
axis([0 90 -1.5 1.5]) .}Ys+d1b9c  
q4G$I?4  
grid on ^e ;9_(  
W\5 -Yg(@  
subplot(1,2,2); _Ex<VF u  
. &`YlK  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 7zA+UWr  
\&ZEIAe  
legend('t_p','t_s','|t_p|','|t_s|') 7'Hh^0<  
mh`uvqY  
xlabel('\theta_i') q8;MPXSG3  
3^-R_  
ylabel('Amplitude') J P5en  
Sl'$w4s   
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ;3xi.^=B  
11Qi _T\  
axis([0 90 -0.5 3]) Gm9  
v6[VdWOx5  
grid on 8bs'Ek{'o  
%g89eaEZ  
Rp=abs(rp).^2; 1[#sHj$Na`  
LpSF*xm  
Rs=abs(rs).^2; iQT0%WaHl  
2Oyw#1tdn  
Rn=(Rp+Rs)/2; l{ql'm  
05\0g9  
Tp=1-Rp; C!9mygI  
e 8oAGh"  
Ts=1-Rs; [e@m -/B  
Kng=v~)N'  
Tn=(Tp+Ts)/2; 8;c\} D  
O@W/s!&lFa  
figure(2) Z]bG"K3l  
"UhE'\()  
subplot(1,2,1); + ZiYl[_|  
So e2Gq  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) v6Y[_1  
2_o\Wor#  
legend('R_p','R_s','R_n') wgolgof  
92.Rjz;=9?  
xlabel('\theta_i') M8\/[R\  
2@pEiq3  
ylabel('Amplitude') 02tN=}Cj)  
iC^G^~V+H  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Qt_KUtD  
jq8TfJ|   
axis([0 90 0 1]) hNkv lk'Ui  
J kAd3ls  
grid on '@w'(}3!3R  
UzIE,A  
subplot(1,2,2); bj 8pqw|;  
Nge@8  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) uTPAf^|  
=3SJl1w1  
legend('T_p','T_s','T_n') i ps)-1  
f\q5{#"z  
xlabel('\theta_i') ZG#:3d*)  
9n_Rk W5g  
ylabel('Amplitude') 3fXrwmBT8  
k$8Zg*)  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Uam %u  
i^Jw`eAmT  
axis([0 90 0 1]) +j+ v(-  
xN}f?  
grid on Mw-L?j0o[k  
.]zZwB  
[attachment=80481] 7t}s5}Z 4  
w L>*WLfR  
[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 y x#ub-A8  
jabil 2025-03-07 09:40
Thanks
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