[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 QvlVjDIy  
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1、光疏射向光密 $|I hO  
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clear nd{k D>a  
MSe>1L2=  
close all 6|1*gl1_LD  
lr)9U7  
n1=1,n2=1.45; R=S)O.*R  
u0%bv\$m  
theta=0:0.1:90; ksyQ_4^SO  
_TbvQY  
a=theta*pi/180;  }D!o=Mg^  
S>d7q  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); %<MI]D  
-2Dgr\M  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); &jh17y  
/{-J_+u*%  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); hSaw)g`w  
U/-|hfh  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Ba76~-gK$  
>KJE *X@s  
figure(1) )IKqO:@  
m" ]VQnQ  
subplot(1,2,1); ,8stEp9~h]  
Wli!s~c5Fo  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) SfPtG  
'_" S/X+v  
legend('r_p','r_s','|r_p|','|r_s|') .G>~xm0  
"P$')uwE  
xlabel('\theta_i') ',I$`h  
b[MKo7  
ylabel('Amplitude') 0RN7hpf&`  
Kn}Y7B{  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) yjM!M|  
f2k~(@!h  
axis([0 90 -1 1]) ,t39~w  
ONLhQJCb  
grid on >P-'C^:V=  
8]WcW/1r !  
subplot(1,2,2); c&
"1Z/tR  
g ~%IA.$c  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) o}yA{<"  
H^g&e$d0  
legend('t_p','t_s','|t_p|','|t_s|') uIR   
ix 5\Y  
xlabel('\theta_i') ^CB@4$!   
J,k.*t:  
ylabel('Amplitude') a
)!R4  
jK2gc^"t  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \# 1p  
 hAD gi^  
axis([0 90 0 1]) UFeQ%oRa8  
^j<2s"S  
grid on m [BV{25  
P,k=u$  
Rp=abs(rp).^2; ZC)m&V1  

T )bMHk  
Rs=abs(rs).^2; U \jFB*U  
Srrzj-9^)K  
Rn=(Rp+Rs)/2; )~#3A@  
F`o"t]AD-a  
Tp=1-Rp; Nb\B*=4AR  
cgR8+o  
Ts=1-Rs; ;z~j%L%b  
K\5/||gi  
Tn=(Tp+Ts)/2; Q1x=@lXR  
la`f@~Bbr1  
figure(2) XKvH^Z4h{l  
kM3#[#6$!  
subplot(1,2,1); YyC$\HH6  
8[oZ>7LMzC  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) v5*JBW+c*  
AdRK)L  
legend('R_p','R_s','R_n') B8zc#0!1  
}q:4Zh'l!  
xlabel('\theta_i') "f-HOd\=  
5B;;{G
R  
ylabel('Amplitude') VRUA<x  

gVs@T'  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) aQ0pYk~(  
l$C Y gm  
axis([0 90 0 1]) %5j*e  
B%z+\<3^q  
grid on {G{>Qa|  
}zrapL"9X  
subplot(1,2,2); 4C9k0]k2  
_Pn 1n  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) U
Fyk%#L  
|^OK@KdL1  
legend('T_p','T_s','T_n') LVJn2t^  
I~,bZA  
xlabel('\theta_i') 6Z{(.'Be  
%t]{C06w+{  
ylabel('Amplitude') ZN!<!"~  
'v5q/l  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) yER  
|q Pu*vR  
axis([0 90 0 1]) k!d<2Qp W  
rf]x5%ij  
grid on a&B@F]+  
t_\&LMD  
c;88Wb<|W  
wM!dz&  
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2、光密射向光疏 *O7PH1G  
*TPWLR ^  
clear T[2<_nn=  
kv<(N  
close all DkW^gt  
M%7|7V<o)^  
n1=1.45,n2=1; Wlp`D  
`tl-] ^Y2  
theta=0:0.1:90; 6I
a[`xuL  
{8,_[?H  
a=theta*pi/180; <Ik5S1<h$H  
)#sN#ZR$  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); sY?sQ'E2]  
4|DN^F~iut  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); .p(r|5(b  
:bXTV?#0  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); nI8zT0o  
3A\Z]L  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); @
@=,bO  
( geV(zT  
figure(1) 1G'pT$5&  
VREDVLQT  
subplot(1,2,1); t<%+))b  
B)
rBM  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) e1hf{:&/G@  
Q+Eqaz`  
legend('r_p','r_s','|r_p|','|r_s|') 97pnq1b  
$)'LbOe  
xlabel('\theta_i') /Z]hX*QR  
j?VHR$  
ylabel('Amplitude') ^=qV)j  
Y@+9Ukd/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)])
J!}R>mR  
m/`L3@7Tt  
axis([0 90 -1.5 1.5]) ,I:[-|Q  
}&%&0$%  
grid on ""h%RhcZ\  
LYTnMrM  
subplot(1,2,2); kD6Iz$tr  
,<[x9 "3\  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) {vur9L  
]-l4  
legend('t_p','t_s','|t_p|','|t_s|') milQxSpj  
a&[>kO  
xlabel('\theta_i') <80M$a g  
^c|0?EH  
ylabel('Amplitude') 2L=(-CH9]  
!"'@c  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4thPR}DH}  
<)oxs]<  
axis([0 90 -0.5 3]) o_r{cnu  
FV%|*JW[;N  
grid on 4+4&}8FH  
WL3J>S_  
Rp=abs(rp).^2; T;i+az{N:V  
z]j_,3Hff  
Rs=abs(rs).^2; ?S.LGc  
z'0 =3  
Rn=(Rp+Rs)/2; g^^^fKUp)  
eYPIZ{S7h  
Tp=1-Rp; f?"909&  
h{ eQ\iI  
Ts=1-Rs; ""jl  
uNpa2{S'  
Tn=(Tp+Ts)/2; F0'8n6zj  
" pL5j  
figure(2) /}s#   
5'EoB^`8N~  
subplot(1,2,1); pWKI^S  
zF&_9VNk=c  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) KC54=Rf  
N]G`]  
legend('R_p','R_s','R_n') oM,UQ!x<  
wL&[Vi_j{  
xlabel('\theta_i') M$3/jl*#}  
)F6p+i="  
ylabel('Amplitude') (
dym*_J  
8,:lw3x1  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) V
C^QCuSq  
IOl0=+p  
axis([0 90 0 1]) zZS,<Z  
<p[RhP  
grid on @! jpJ}  
"p&4Sn3T2?  
subplot(1,2,2); +lJD7=%K]Z  
UQjZhH  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ^k!u  
%i&\X[
 
legend('T_p','T_s','T_n') MA v-
#  
,km`-6.2?  
xlabel('\theta_i') -i4hJC!3  
}$:ha>  
ylabel('Amplitude') 5(y Q-/6C+  
&>XSQB(&%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :Z]\2(x  
Vje LPbk)  
axis([0 90 0 1]) @T{I;8S  
B|rf[EI>  
grid on 'zQp64]F  
a6g+"EcH#'  
ae] hCWK  
u~2
7\oj,  

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

学习学习

学习学习 K<Qy1y~[  

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