[分享]利用MATLAB光学仿真（1） [复制链接]

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 Fsj[J
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1、光疏射向光密 |h/2'zd^-  
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clear 9(j!#`O7&  
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close all 1Di&vpn0u  
Q*(o;\s  
n1=1,n2=1.45; hiHp@"l<  
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theta=0:0.1:90; q:.BY}X9  
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a=theta*pi/180; &}1)]6q$  
c.v)M\:  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); K_n%`
5  
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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)); Q2?qvNZ  
3/FB>w gt  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ;D:T ^4  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); p]4 sN  
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figure(1) n\
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HXI}f\6x  
subplot(1,2,1); 90}B*3x  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) !d(V7`8  
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legend('r_p','r_s','|r_p|','|r_s|') ]EQ/*ct  
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xlabel('\theta_i') q3`t0eLZ  
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ylabel('Amplitude') e.V){}{V  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) mGvP9E"&  
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axis([0 90 -1 1]) aDuanGC/V  
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grid on za7wNe(s  
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subplot(1,2,2); E"=$p$k  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) cDg27xOUi  
plfB}p  
legend('t_p','t_s','|t_p|','|t_s|') p~IvkW>ln)  
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xlabel('\theta_i') 'Iu(lpF&  
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ylabel('Amplitude') *Y Ox`z!R  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) u:ISwAp  
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axis([0 90 0 1]) 0P(}e[~Z  
rNc>1}DDS  
grid on 7[LC*nrr  
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Rp=abs(rp).^2; n:P}K?lg  
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Rs=abs(rs).^2; kWFR(J&R  
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Rn=(Rp+Rs)/2; ?t-2oLE  
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Tp=1-Rp; o/R-1\Dn  
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Ts=1-Rs; G1rgp>m  
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Tn=(Tp+Ts)/2; :[doYizk:  
2 O%UT?R  
figure(2) wr`eBPu  
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subplot(1,2,1); *RPI$0
 
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) U|=y&a2Rb  
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legend('R_p','R_s','R_n') NQmDm!-4  
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xlabel('\theta_i') <d4^gAfs*  
eIJQ|p<v  
ylabel('Amplitude') 9V~yK?  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) v!2`hqO  
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axis([0 90 0 1]) mYCGGwD  
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grid on _>s.V`N'  
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subplot(1,2,2); g(1'i1  
y^ohns5{  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Y3?kj@T`i  
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legend('T_p','T_s','T_n') 5@Sb[za  
J{H475GqiT  
xlabel('\theta_i') q07>FW R  
IcB>Hg5  
ylabel('Amplitude') p~t$ll0s  
@B+];lr/-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) - 0zo>[c/p  
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axis([0 90 0 1]) Js'|N%pi  
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grid on 6`'^$wKs  
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rS=6d6@  
kns[b [!H  
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2、光密射向光疏 a}6Wo
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x,n;GR  
clear xk#/J]j  
&Oe,$%{hBh  
close all T3\Q<  
$N~8^6  
n1=1.45,n2=1; +ft?aB@  
;#AV~Y- s  
theta=0:0.1:90; dD=dPi#
 
|',Gy\Sj  
a=theta*pi/180; J5429Soo  
i),W1<A1  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *edB3!!  
^hU7QxW  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); v=!]t=P)t  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); b?y3m +V`  
 E;k'bz  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Iu=iC.50}  
1%H]2@  
figure(1) `w2hJP  
-FwOX~s/'  
subplot(1,2,1); O0e6I&u:  
 IS!sJc  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) TeQpmhN  
7Y:1ji0l  
legend('r_p','r_s','|r_p|','|r_s|') @`)A
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xlabel('\theta_i') <
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O",:0<  
ylabel('Amplitude') 4\3Z$%2^LZ  
Ve<l7U;  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) i&RPYbT{  
_8S!w>$)  
axis([0 90 -1.5 1.5]) L9"V$MO  
K%.\@l2Cp  
grid on @jX[Ho0W'  
>IsRd  
subplot(1,2,2); +g%kr~w=  
LJ9^:U  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) +Uq$'2CT  
0KE+RzrB  
legend('t_p','t_s','|t_p|','|t_s|') ,@Xl?  
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xlabel('\theta_i') f
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p=LlZ  
ylabel('Amplitude') CM_FF:<tn  
5?{a=r9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5$/ED3mcK  
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axis([0 90 -0.5 3])
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8A#qbBD  
grid on xx_]e4  
|\Nu+w  
Rp=abs(rp).^2; {%*,KB>b  
unKi)v1  
Rs=abs(rs).^2; LY(YgqL  
F|Pf-.r`t  
Rn=(Rp+Rs)/2; E9i M-Lw  
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Tp=1-Rp; Z_Qs^e$  
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Ts=1-Rs; a"@k11  
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Tn=(Tp+Ts)/2; nep0<&"  
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figure(2) 7.`Fe g.  
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subplot(1,2,1); Iy%
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yY+)IU.  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) WBvh<wTw;  
n]S DpptM  
legend('R_p','R_s','R_n') m^I+>Bp/:  

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xlabel('\theta_i') >+ZBQ]~  
p=sLKnLmZ  
ylabel('Amplitude') ~gg(i"V  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) QQ;<L"VW  
g<(3wL,"  
axis([0 90 0 1]) Y">m g=B  
w/&)mm{  
grid on I6@98w}"  
: .Y
  
subplot(1,2,2); Jas=D  
dnRbt{`jP  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) )lh48Ag0t;  
bS7rG$n [  
legend('T_p','T_s','T_n') 0N9`WK  
P&I%!'<   
xlabel('\theta_i') jd ]$U_U(  
trlZ^K  
ylabel('Amplitude') %c:v70*h=  
A8tzIh8  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ?'SHt9b3|  
RI.6.f1dy  
axis([0 90 0 1]) +c'b=n9
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(OS -v~{r@  
grid on " ,k(*  
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感谢楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

谢谢了楼主分享

thanks

谢谢了楼主分享

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