[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 L+L9)8FJ  
oMbCljUC  
1、光疏射向光密 YSif`W!  
B"v=Fr[  
clear p3'+"sFU  
p2K9R4  
close all +n dyR  
%54![-@  
n1=1,n2=1.45; < r~Tj  
U_No/$ b  
theta=0:0.1:90; ?da3Azp  
}d(6N&;"zN  
a=theta*pi/180; VUb*,/h
xa  
%ZK}y{u\  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *gn*S3Is[j  
.$iIr:Tc>  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); n6f|,D!?  
tDo0Q/`  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); f/ZE_MN2  
KX`,7-  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); w6_}] &F  
guvQISQlY  
figure(1) E_oe1C:  
51
vK>  
subplot(1,2,1); W#!\.m`5  
:-)[B^0  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) !MC Wt  
q}jf&xUWzH  
legend('r_p','r_s','|r_p|','|r_s|') c z|IBsa*  
"^H+A-R[  
xlabel('\theta_i') D }\`5L<  
hd\#Vh(H  
ylabel('Amplitude') ?6dtvz;K+?  
,l6W|p?ZO^  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5kF5`5+Vj  
dQ[lXV[}v  
axis([0 90 -1 1]) w
9%gaK;  
<_
![~n$H  
grid on B.?yHaMI
[  
5IMH G%W7  
subplot(1,2,2); d
,77L  
P*SXfb"HC  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) :.cX3dP@  
DQ)SMqOotw  
legend('t_p','t_s','|t_p|','|t_s|') o;.-I[9h]  
IQDWH/c  
xlabel('\theta_i') #lO;G k{  
g:Dg
?_o  
ylabel('Amplitude') $sJn: 8z  
&a`-NRU#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ?,j:Y0l.L  
dZW:Cf 9K  
axis([0 90 0 1]) 89paR[  
{x8`gP\H  
grid on
MPt7 /  
(GQy"IuFh  
Rp=abs(rp).^2; b%kh:NV{S  
+3C S3fTq  
Rs=abs(rs).^2; L6a8%%`  
Y%faf.$/9  
Rn=(Rp+Rs)/2; 1pV"<,t  
C$bK!]a  
Tp=1-Rp; V/Q6v YX  
/Yh8r1^2tZ  
Ts=1-Rs; ^tah4QmUA  
u7mj  
Tn=(Tp+Ts)/2; *M"wH_cd  
g@QpqrT  
figure(2)
=4zsAa  
MiC
&a
v
 
subplot(1,2,1); 6"DvdJ0MB  
#'T|,xIr-Q  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) G>,rf ]N  
3EyN"Lvp{o  
legend('R_p','R_s','R_n') E8xXr>j>#  
"CaVT7L  
xlabel('\theta_i') |0&S>%=  
4Mprc~ 7vr  
ylabel('Amplitude') bfJDF(=h  
vmoqsdZ/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) K)qmJ-Gub  
0h7\zoZ5  
axis([0 90 0 1]) ={fi&j  
Pwq} ;+  
grid on MwuH.# Ez  
ESs)|t h  
subplot(1,2,2); {e~d^^N5  
&]euN~y  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ;'h7 j*6  
(p. 5J  
legend('T_p','T_s','T_n') ~7ArH
9k.  
HZ|6&9we  
xlabel('\theta_i') d1,azM  
G67BQG\av  
ylabel('Amplitude') BAxZR  
*) wp  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) mz#(\p=T  
wy^>i$
TC  
axis([0 90 0 1]) _])1P?.  
H1l'\  
grid on `S!`=26Z!  
^WeT3b q  
q%JV"9,  
:g,
rl\S7  
\F> *d!^C  

2、光密射向光疏 5Zq- |"|  
A1:Fe9q  
clear /O8'8sL5  

7Fq|Zc`P  
close all *kDXx&7B$  
D
b2G)63  
n1=1.45,n2=1; `dj/Uk  
xOkf9k_  
theta=0:0.1:90; xUG|@xIwc  
:!3P4?a  
a=theta*pi/180; vbSz&+52;  
bT8BJY%+  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); &Z
f@vD  
AD8~  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); +oyc9PoXF  
B aXzz  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 7$^V_{ej  
02SUyv(Mt  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 87*R#((  
r*WdD/r|  
figure(1) (OJ}|*\e  
Uqkh@-6-  
subplot(1,2,1); #Q;#A |EZ  
#Uudx~b  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) QJ$]~)w?H  
`_f3o,5  
legend('r_p','r_s','|r_p|','|r_s|') p*>[6{$3)O  
eqLETo@} *  
xlabel('\theta_i') EmLPq!C  
)of_"gZ$3A  
ylabel('Amplitude') atPf527\`  
;aD_^XY  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) (=p}b:Z  
@m(\f  
axis([0 90 -1.5 1.5]) 1pcSfN:"1  
N'^ 0:zK:  
grid on fA|'}(kH  
,@<-h* m  
subplot(1,2,2); h>\}-|Ek  
RRV&!<l@$  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) U
;;Har  
[t ^|l?  
legend('t_p','t_s','|t_p|','|t_s|') XbHcd8N T  
S?D2`b  
xlabel('\theta_i') .}Xkr+ +]  
o]jo R3  
ylabel('Amplitude') xNjA>S\]W5  
'W$qi@f_s  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) S
-v9z:M3  

Phx/9Kk  
axis([0 90 -0.5 3]) !4 6^}3  
jP+4'O!s[  
grid on /AWHG._  
uD. 0?*_  
Rp=abs(rp).^2; vnIxI a  
$bD!./fl  
Rs=abs(rs).^2; h7o{l7`)  
lMP|$C  
Rn=(Rp+Rs)/2; @ cv`}k  
q.MM|;_u`  
Tp=1-Rp; !lHsJ)t  
9WBDSx_(Q  
Ts=1-Rs; QO|ODW+D  
O" T1=4  
Tn=(Tp+Ts)/2; I</Nmgf  
!3Pl]S~6!  
figure(2) K5k,47"  
B{
zIW'Ld  
subplot(1,2,1); Q>||HtF$A  
c-gaK\u}j}  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Wlt shZo  
9#_49euy|P  
legend('R_p','R_s','R_n') \)r#?qn4z;  
p|W:;(  
xlabel('\theta_i') Xst&QKU  
H#6J7\xcS  
ylabel('Amplitude') #He:p$43  
yQ&;#`!'  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 23Eg|Xk  
W+Iln`L  
axis([0 90 0 1]) &(wik#S  
 eYS  
grid on LV9\  
783a Z8  
subplot(1,2,2); ~PS%^zxyn  
KxiZx I  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 1OJ:Vy}n  
ab 2V.S  
legend('T_p','T_s','T_n') F[~qgS*;  
6~D:O?2  
xlabel('\theta_i') Xr':/Qjf  
M~3(4,  
ylabel('Amplitude') |n]^gTJt  
' Bdvqq  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) JlGyGr^MD  
;9b?[G  
axis([0 90 0 1]) x
~KS;hA  
hu6)GOZbv  
grid on G.cs-f  
r?H {Y3,  
b/E1v,/<  
k%uRG_  

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 7A3e-51>  

Thanks