[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 ak2dn]]D  
 q)oN2-  
1、光疏射向光密 ysth{[<5F3  
ewQe/Fq  
clear #Q+R%p  
h#O"Q+J9n  
close all QK7e|M  
msG3~@q  
n1=1,n2=1.45; |8'B/ p=  
~
,Mr0  
theta=0:0.1:90; /s8/q2:  
-mC:r&Y>[  
a=theta*pi/180; K P6PQgc  
"OJr*B  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); `vX4!@Tw  
cuMc*i$w!  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 4tnjXP8  
:p$EiR  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); WVkG2  
&%:*\_2
s  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); -fQX4'3R  
3.~h6r5-  
figure(1) x Ty7lfSe  
N1s.3`  
subplot(1,2,1); #'iPDRYy  
c.-cpFk^L&  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) oB}K[3uB:t  
'2xcce#  
legend('r_p','r_s','|r_p|','|r_s|') >F|qb*Tm7  
/pU|ZA.z'2  
xlabel('\theta_i') kU(kU
2u%9  
26}u4W$  
ylabel('Amplitude') :@;6  
AtT"RG-6  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 59~FpjJ  
6~3jn+K$1  
axis([0 90 -1 1]) $>(9~Yh0  
Mb~~A5  
grid on ~R$[n.Vpk  
ik1XGFy?  
subplot(1,2,2); e@yx}:]h  
+/(|?7i@  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) {9Xm<}%u]]  
MyqiBGTb  
legend('t_p','t_s','|t_p|','|t_s|') q>P[nz%  
!^]q0x  
xlabel('\theta_i') qKA_A%  
j7,13,t1-  
ylabel('Amplitude') F6DxvyANr  
InP[yFV-z  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) )FV6

,  
Dl&PL  
axis([0 90 0 1]) [~!.a\[RW  
7^&lbzVbm(  
grid on S;>4i!Mb ^  
@OY1`EuO  
Rp=abs(rp).^2; ['?^>jfr  
tz"5+uuu  
Rs=abs(rs).^2; A%P 8c  
E`(5UF*>  
Rn=(Rp+Rs)/2; &+,:u*%  
T^d#hl.U  
Tp=1-Rp; G I&qwA  
CH55K[{<  
Ts=1-Rs; wG;}TxrLS  
WI0QLR'  
Tn=(Tp+Ts)/2; gO9'q='5l  
~37R0`C  
figure(2) avmcGyL  
\)p4okpR  
subplot(1,2,1); dZ.}j&ZH'  
j/~VP2R`  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) N/(ofy  
.zQ4/  
legend('R_p','R_s','R_n') i0VhG:O;  
sE^ns\&QP=  
xlabel('\theta_i') -|6V}wHg~  
}!eF
  
ylabel('Amplitude') o*?[_{xW  
CQj/e+eE4  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) p .lu4  
&qNP?>C!=  
axis([0 90 0 1]) \)uy"+ Z`  
A>4l/  
grid on ,:c:6Y^  
h_AJI\{"  
subplot(1,2,2); ZYrKG+fkl  
^xzE^"G6  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ~o}moE/ ;O  
bta0?O #  
legend('T_p','T_s','T_n') k,a,h^{}j  
@=02  
xlabel('\theta_i') <ur KIu  
BT&rp%NO6l  
ylabel('Amplitude') =%Q\*xaR.W  
.@4QkG/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #Y/97_2 xa  
zfM<x,XdY  
axis([0 90 0 1]) xAR^  
LBW.*PHW  
grid on E6,`Ld;c[  
Kh>?!`lL  
Vww@eK%5Q  
bv.EM  
QBg}2.  

2、光密射向光疏 S/#) :,YS  
?AqrlR]5  
clear e_fg s>o`(  
'DaNR`9  
close all ?7r
mwy\  
&6|6J1c8  
n1=1.45,n2=1; T{5M1r  
|[lxV&SD.  
theta=0:0.1:90; yb@X*PW
/z  
mafAC73  
a=theta*pi/180; BDv|~NHs  
8eg2o$k_,#  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); n?TO!5RZK  
}w|=c>'_}  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); `R4W4h'I  
xEd#~`Jmr  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); v.~Nv@+kR  
*@b~f&Lx6  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); @j)f
(Zlu#  
LH?gJ8`  
figure(1) ex;Yn{4  
Mt7X<?GZm  
subplot(1,2,1); FvtM~[Q  
~|$) 1  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) q\{;_?a  

LN,$P  
legend('r_p','r_s','|r_p|','|r_s|') bUipp\[aV  
bKZAJLnd  
xlabel('\theta_i') K4K3<Pg  
+#i,87  
ylabel('Amplitude') P~b%;*m}8  
X:zyzEhS  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) y$;zTH_6j  
YV2pERl  
axis([0 90 -1.5 1.5]) qB`0^V  
\k$]GK-  
grid on <9MQ  
I%VV4,I&pK  
subplot(1,2,2); l1`c?Y  
N8/Au=De_  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) R[ +]d|L  
 t`&s  
legend('t_p','t_s','|t_p|','|t_s|') \a~;8):q=i  
<try%p|f  
xlabel('\theta_i') `siy!R  
FHnHhB[  
ylabel('Amplitude') G%W03c  
e-T9HM&%P  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,rvZW}=  
U`vt/#j 1  
axis([0 90 -0.5 3]) ~k:>Xo[|O  
2-B8>-   
grid on I{X@<o}  
O+3D 5*  
Rp=abs(rp).^2; 'K
N!m| z  
'&o> %V  
Rs=abs(rs).^2; u.xA}yVS  
3`C3+  
Rn=(Rp+Rs)/2;
z<C~DH  
8)2u@sx%  
Tp=1-Rp; vr]dRStr  
v2dSC(hRZ  
Ts=1-Rs; ?),K=E+=U  
::Ve,-0  
Tn=(Tp+Ts)/2; fh5^Gd~  
:[$i~V  
figure(2) RAXJsF^5o  
='l6&3X  
subplot(1,2,1); T=)L5Vuq<  
W0C$*oe!_i  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) &`9bGO
  
h11bK'TIv  
legend('R_p','R_s','R_n') ;-P:$zw9c  
G#=b6DB  
xlabel('\theta_i') :d/:Ga5v!  
s13 d*  
ylabel('Amplitude') Q0oDl8
~  
hc~#l#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ?\ i,JJO  
;:K?7wfXn  
axis([0 90 0 1]) \?Oa}&k$F8  
ZpP6Q  
grid on m$e@<~To  
TTjjyZ@  
subplot(1,2,2); N6 Cc%,  
085 ^!AZ  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ~o\]K  
r'}k`A5>  
legend('T_p','T_s','T_n') #p^pvdvh3  
6-E4)0\  
xlabel('\theta_i') 8CHf.SXh  
eXtF[0f  
ylabel('Amplitude') fTnyCaB  
/-} p7AM  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n ;f
Tx  
gj(l&F *@  
axis([0 90 0 1]) Ay. q
)  
OjL"0imN6  
grid on ;@$,
" P  
$2Tty 7  
doU
qUak  
!EC\1rmdlN  

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 3!W&J  

Thanks