[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 +gb"} cN  
S8]YS@@D   
1、光疏射向光密 OnE~0+  
y#lg)nB  
clear cn_*,\}  
FvBnmYnW  
close all GIUyW  
tZD^<Q7}\  
n1=1,n2=1.45; SR9M:
%dga  
`{J(S'a`  
theta=0:0.1:90; t;[?Q\  
(i^<er q  
a=theta*pi/180; &+pp;1ls  
`S=4cSH(  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 7)Bizlf  
Yp9%u9tNq  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 7{ QjE  
ogE|8`Tq^  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); t~]tw  
-/6Ms%O  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); (R{z3[/u&  
NUX2{8gs  
figure(1) <d3N2  
J)=Ts({  
subplot(1,2,1); 'jU;.vZex  
|DoD.?v  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) fu`|@
S  
\MmKz^tO  
legend('r_p','r_s','|r_p|','|r_s|') x*F_XE1#M  
s#)tiCSVW  
xlabel('\theta_i') L>2gx$f  
eP|hxqM&9  
ylabel('Amplitude') At8^yF   
AaJnRtBS~  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) T:EUI]  
%@[ ~s,6<  
axis([0 90 -1 1]) dIvvJk8  
zzyD'n7D  
grid on @)Sd3xw[  
TZS:(MJ9M  
subplot(1,2,2); I~U;M+n*y  
P;lDri  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) T#R*]  
EcmyY,w  
legend('t_p','t_s','|t_p|','|t_s|') TInp6w+u  
w<=-n;2  
xlabel('\theta_i') x?-kt.M  
si>gYO  
ylabel('Amplitude') >U'gQS?\]  
{FNq&)#`  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) uze5u\  
;"DI)hdz  
axis([0 90 0 1]) *6P)HU@  
H}&4#CQ'!  
grid on RB/;qdqR  
a6.0$'  
Rp=abs(rp).^2; '9q:gFO  
{,C
vWL  
Rs=abs(rs).^2; 6I$:mH
Ehd  
GxcW^{;  
Rn=(Rp+Rs)/2; ?$rHyI  
m^ [VM&%  
Tp=1-Rp; "+KAYsVtU  
5QJ
FNE  
Ts=1-Rs; #_[W*-|L  
sD`OHV:  
Tn=(Tp+Ts)/2; [^E{Yz=8,  
@)p?!3{"  
figure(2) c,RY j  
pj9s=}1 '  
subplot(1,2,1); y5lhmbl: e  
j+>&~
  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) AwO'%+Bv  
lC(g&(\{  
legend('R_p','R_s','R_n') K yFR;.F-  
>4eZ%</D5  
xlabel('\theta_i') piKR*|F  
2XGbqZj  
ylabel('Amplitude') YO^iEI.  
23=SXA!  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) %oEv
p{I  
OLM}en_L  
axis([0 90 0 1]) #mcU);s  
\mp5G&+/Q  
grid on 1*J#:|({(  
`SSUQ#@  
subplot(1,2,2); `h|>;u   
P_3U4J  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) vAp?Zl?g  
v&*}O  
legend('T_p','T_s','T_n') AilfeHG  
&SE+7HXw  
xlabel('\theta_i') n32.W?9  
0ge^pO\Z  
ylabel('Amplitude') 9F"Q2^l'  
MW6
KEiQ"  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]w[T_4l  
GcYT<pwN6  
axis([0 90 0 1]) #[{xEVf  
vs~lyM/  
grid on CuD^
@  
$1$T2'C~+  
\9t6#8  
86,$ I+  
FI$#x%A  

2、光密射向光疏 uJ!yM;{+  
WrGz`  
clear *t+E8)qL  
32sb$|eQq  
close all uF=xo`=|  
]'/ZSy,  
n1=1.45,n2=1; dn1Tu6f;|  
%aszZP  
theta=0:0.1:90; E0i_sB~T  
!cWnQRIt_F  
a=theta*pi/180; c.\J_^  
KQ x<{-G6  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); %J
pb&CEY  
D@ji1$K  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ,T|%vqbmw  
Y%V|M0 0`  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); HGgw<Os-k  
m9Uoq[1  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Y
{8L ~U:  
c[Mz#BWG  
figure(1) (1vmtg.O  
{mp;^/O`er  
subplot(1,2,1); fV;&)7d&  
'7<@(HO  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) DvuL1MeKo  
>)N}V'9  
legend('r_p','r_s','|r_p|','|r_s|') ,QpDz{8  
sKX%<n$  
xlabel('\theta_i') %V$ujun`  
"iof -b=ys  
ylabel('Amplitude') `f^`i~c\  
Wb4%=2Qn  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) w^*jhvV%kW  
vR?L/G^.  
axis([0 90 -1.5 1.5]) 8<g_JW[%  
)W@H  
grid on ]'aGoR  
b'N"?W^YQ  
subplot(1,2,2); NRKAEf_#w  
c3lfmTT6^  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) S)"5X)mq  
n^/,>7J  
legend('t_p','t_s','|t_p|','|t_s|') ;e0>.7m  
MjI}fs<  
xlabel('\theta_i') `,(1'  
<EI'N0~KG  
ylabel('Amplitude') is}Fy>9i  
MjU>qx::  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) p Nu13o~  
Ze$:-7Czl  
axis([0 90 -0.5 3]) 1F5F2OT$8  
gzDb~UEoF  
grid on D0QXvrf  
r/Pg,si  
Rp=abs(rp).^2; LFSOHJj  
^d"tymDd  
Rs=abs(rs).^2; CRWO R pP  
?NI)3-l  
Rn=(Rp+Rs)/2; B>47Ic  
AmSJ!mTd8o  
Tp=1-Rp; )K2n!Fbd  
{uj9fE,)  
Ts=1-Rs; /KKX;L[D(  
yB.6U56  
Tn=(Tp+Ts)/2; rMlb
j2T  
xDr *|d  
figure(2) `p^M\!h*O  
q#\eL~k  
subplot(1,2,1); Gz*U?R-T  
l!iB -?'u  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) v2@M,xbxF:  
y+:<  
legend('R_p','R_s','R_n') "<O?KO3K  
0/KNXz  
xlabel('\theta_i') 6-X7C9`C  
1xtbhk]D  
ylabel('Amplitude') w#b~R^U  
>8NQ8i=]V1  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) w\t{'  
E/GI:}YUy_  
axis([0 90 0 1]) V,M8RYOnC!  
G8oQSo;D  
grid on G#% =R`k/  
d&'6l"${  
subplot(1,2,2); -`?V8OwY]  
n(o Jb  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 98O z  
hG;u8|uT^i  
legend('T_p','T_s','T_n') ac&tpvij  
/|DQ_<*  
xlabel('\theta_i') $9J"r9@@  
 b
'{D4/  
ylabel('Amplitude') z
u|pL`X  
3S5Qq
Am  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) vOP[ND=T  
R\+$^G}#6  
axis([0 90 0 1]) X>wQYIi  
er<~dqZ}]  
grid on be@MQ}6>  
):[[Ch_  
7PvuKAv?k  
FP\[7?ZLn  

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 {n]sRz  

Thanks