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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 2"~QI xY=  
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1、光疏射向光密 AShnCL8uR  
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clear .#] V5g,  
ByK!r~>Z1Q  
close all 6O>GVJbw  
t TAql n|  
n1=1,n2=1.45; lc71Pp>  
TFWx(}1  
theta=0:0.1:90; 8SGFzb! h  
2y&m8_s-p  
a=theta*pi/180; s=+,F<;x.U  
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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)); R`F54?th  
f(h nomn  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ZgcJxWC<  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 7X$[E*kd  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); DJ)z~W2I*  
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figure(1) `!.)"BI/s  
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subplot(1,2,1); d_j% ,1-#  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) U9[ &ci  
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legend('r_p','r_s','|r_p|','|r_s|') =7JvS~s  
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xlabel('\theta_i') P9)E1]Dc$  
>[=fbL@N<@  
ylabel('Amplitude') Lbka*@  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9y(75Bn9  
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axis([0 90 -1 1]) NW'rqgG  
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grid on 9+G.86Iky  
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subplot(1,2,2); OSk+l  
[X'XxYbZ  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 9Ij=~p]p  
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legend('t_p','t_s','|t_p|','|t_s|') `.dX@<  
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xlabel('\theta_i') YRXXutm  
hjVct r  
ylabel('Amplitude') jP?YV  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) VQ5D?^'0/  
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axis([0 90 0 1]) B? $9M9  
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grid on UQ;ymTqdc  
q6 h'=By  
Rp=abs(rp).^2; *f%uc  
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Rs=abs(rs).^2; *=Ko"v }  
v=kQ / h  
Rn=(Rp+Rs)/2; >h^CC*&'pw  
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Tp=1-Rp; !_Z\K$Ns  
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Ts=1-Rs; _MF:?p,l  
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Tn=(Tp+Ts)/2; ;JM%O8  
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figure(2) .TcsXYL.`,  
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subplot(1,2,1); f tS^|%p  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) d5zv8?|X+  
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legend('R_p','R_s','R_n') 5K_KZL-  
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xlabel('\theta_i') zX{O"w  
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ylabel('Amplitude') rI/;L<c  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) G(g`>' m  
/.54r/FN')  
axis([0 90 0 1]) i2. +E&3v  
x$:>W3?T=^  
grid on (x;Uy  
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subplot(1,2,2); J7Z`wjX1  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) !*[Fw1-J  
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legend('T_p','T_s','T_n') N_ 3$B=  
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xlabel('\theta_i') m=g\@&N  
up(6/-/.7  
ylabel('Amplitude') V*xo3hU  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <OX_6d*@  
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axis([0 90 0 1]) YkOl@l$D  
9%+Nzo(Fd  
grid on MHl ffj  
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[attachment=80479] bl8zcpdL  
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[attachment=80478] UweXz.x7  
200833 2017-11-26 22:36
2、光密射向光疏 v'0WE  
Ijg //=  
clear mP!=&u fcU  
8i epG  
close all 8iv0&91Z  
eo#2n8I>=1  
n1=1.45,n2=1; I_?+;<n  
6]%SSq&  
theta=0:0.1:90; Z<P?P`  
x9DG87P~+  
a=theta*pi/180; c0 I;8z`b  
/nPNHO>U  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); DGc5Lol~  
MNuBZnO  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Z.^DJ9E<1  
VVd9VGvh  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); =3~5I&  
3]46qk '  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); =,MX%-2  
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figure(1) J!\Cs1 !f  
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subplot(1,2,1); [Sj _=  
#<$pl]>}t  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) >'eY/>n{  
8I>'x f  
legend('r_p','r_s','|r_p|','|r_s|') l:@`.'-=  
B;vpG?s{9  
xlabel('\theta_i') MD4RSl<F  
K/flg|uZ/V  
ylabel('Amplitude') /h]#}y j  
Wr j<}L|  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) jqzG=/0~{  
x(]Um!  
axis([0 90 -1.5 1.5]) U } K]W>Z  
8wf[*6VwV  
grid on -X]?ql*%`  
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subplot(1,2,2); Il4R R  
za,JCI  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) I)(@'^)  
<rKfL`8p  
legend('t_p','t_s','|t_p|','|t_s|') (r9W[  
2Wx~+@1y  
xlabel('\theta_i') ML!>tCT  
af>^<q  
ylabel('Amplitude') lZ*V.-D^]  
sZDxTP+  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) P\rA>ZY  
{<P{uH\l  
axis([0 90 -0.5 3]) (teK0s;t5k  
NMvNw?]  
grid on "9v4'"  
.4cV X|T  
Rp=abs(rp).^2; EyDH -}Y  
q; ?Kmk  
Rs=abs(rs).^2; olxnQYFo  
Z.%0yS_T  
Rn=(Rp+Rs)/2; KW@][*\uC  
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Tp=1-Rp; &&>Tfzh  
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Ts=1-Rs; =K;M\_k%y  
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Tn=(Tp+Ts)/2; ]Vm:iF#5P  
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figure(2) 3 +WmM4|  
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subplot(1,2,1); B1k;!@@1 4  
(`js/7[`H[  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) \Gm\sy  
.jv#<"DW  
legend('R_p','R_s','R_n') m85H x1!p.  
08qM?{z o^  
xlabel('\theta_i') WzqYB a  
(&!x2M  
ylabel('Amplitude') 1EHL8@.M  
K}( @Ek  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) *%n(t+'q  
V'8Rz#Gc5  
axis([0 90 0 1]) 5_+pgJL  
>*h3u7t  
grid on r E&}B5PN=  
MWI7u7{  
subplot(1,2,2); yfZYGhPN(  
y4N2gBTKu  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ZkmY pi[  
{:TOm0eK  
legend('T_p','T_s','T_n') U.pGp]\Q)G  
NRMEZ\*L  
xlabel('\theta_i') R*l3 zn>  
h'"~t#r  
ylabel('Amplitude') >c=-uI  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =3EE-%eF!  
6){nu rDBG  
axis([0 90 0 1]) c+ukVn`r  
G<>h>c1>z  
grid on )ml#2XP!f  
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[attachment=80481] >^GAfvW  
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[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 nTHCb>,vM  
jabil 2025-03-07 09:40
Thanks
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