[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 .Kg|f~InO  
3^j~~"2,w  
1、光疏射向光密 ;`;G/1]#9  
^!$} BY  
clear @*bvMEE  
?,D>+::  
close all .jLMl*6%:  
Zj:a-=  
n1=1,n2=1.45; QQ5
lW  
x:=0.l#  
theta=0:0.1:90; wxH(&CB-{  
RI#lI~&)  
a=theta*pi/180; 7W6e
iUI'  
DxE^#=7iH;  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); )[e%wPu4e  
%"1` NT  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 3D]2$a_d  
?"5~Wwp.T  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 200L  
._8xY$l$  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); BUcaj.S  
R>/QARX  
figure(1) \[@Q}k[  
CsJ)Z%4_  
subplot(1,2,1); :;" aUHU'  
Eqz4{\   
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) .Z(S4wV  
Xtu:  
legend('r_p','r_s','|r_p|','|r_s|') HA$^ *qn  
V%X:1 8j  
xlabel('\theta_i') (#fm (@T  
g;u<[>'I  
ylabel('Amplitude') @Fm{6^  
fW_}!`:  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) S3j
]{pZ(z  
:t2 9`x  
axis([0 90 -1 1]) gaLEhf^  
c9Y2eetO  
grid on m;;0 Cl  
*F26}q  
subplot(1,2,2); `<l/GwtAJ  
icKg7-$N  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) I_"Hgx<  
 VJ~X#Q  
legend('t_p','t_s','|t_p|','|t_s|') ~8KF<2c   
3{2^G@j  
xlabel('\theta_i') 8o8b'tW^  
p=mCK@  
ylabel('Amplitude') ? 6yF{!F*  
Wx']tFn"  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3*X,{%  
7G<KrKal  
axis([0 90 0 1]) Y
|GJph  
FqT,4SIR  
grid on
#{)r*"%  
2$j Ot}  
Rp=abs(rp).^2; j#Ky0+@V  
F#!@}K8  
Rs=abs(rs).^2; X]&;8  
'%n<MTL  
Rn=(Rp+Rs)/2; Dr8WV\4@  
#f|NM7  
Tp=1-Rp; TQO
g~lH  
S|RpA'n  
Ts=1-Rs; gW6G+  
uI[-P}bSc&  
Tn=(Tp+Ts)/2; >m2<Nl}  
^LEmi1L  
figure(2) /P?|4D}<  
 &*>CPO  
subplot(1,2,1); ~7,2N.vO2  
]]h:#A2  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) -$L],q_S^  
(
_i vN  
legend('R_p','R_s','R_n') He0N  
OW63^wA`s  
xlabel('\theta_i') NSxPN:  
&z xBi"  
ylabel('Amplitude') m! '1$G  
I\Gp9w0
f  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) c5wkzY h  
90y9~.v  
axis([0 90 0 1]) PcN
fTB{  
B:6sVJ  
grid on %0~wtZH_!  
U&]p!DV&;  
subplot(1,2,2); tz0Ttu=xH  
dm/\uE'l  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) |$SvD2^  
JK:mQ_  
legend('T_p','T_s','T_n') +GYI2  
LrM.wr zI/  
xlabel('\theta_i') (IWix){  
}!Diai*C  
ylabel('Amplitude') 8[`^(O#\E  
Ip7FD9 ^  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) q563,s  
aaf_3UH.B  
axis([0 90 0 1]) ,SJK  
g+KzlS[6  
grid on yf#%)-7(  
]"7DV3_  
QS=$#Gp  
VM\Z<}C  
}x#P<d(  

2、光密射向光疏 Q@ )rw0$  
PRk%C0`  
clear %oCjZ"ke  
!^w\$cw&  
close all +}-W.H%`0  
+&N&D"9A  
n1=1.45,n2=1; > ^v8
N  
f`9rTc  
theta=0:0.1:90; b%!`fn-;  
N;ecT@Ug  
a=theta*pi/180; QV H'06"{  
mQA<t)1  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ^n45N&916  
kzVI:  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 9hs{uxwuEE  
W];6u  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5G]#yb74  
{O&liU4  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); e>zk3\D!  
Tvx8l m'  
figure(1) ][5p.owJse  
h'y@M+c(  
subplot(1,2,1); +#I~#CV!  
;=9vmQA  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) {kRC!}  
zkMO3w>  
legend('r_p','r_s','|r_p|','|r_s|') 7fzyD  
wY ;8UN  
xlabel('\theta_i') !zkEh9G  
pnA]@FW  
ylabel('Amplitude') +e]b,9.sR  
]ifHA# z`~  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,WDAcQ8\  
-0r"#48(%  
axis([0 90 -1.5 1.5]) 5NF&LM;i(  
oplA'Jgnv  
grid on rU^ghF  
!6/IKh`J  
subplot(1,2,2); 4"X>_Nt6  
,sJfMY  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) =i5:*J  
|AfQ_iT6c  
legend('t_p','t_s','|t_p|','|t_s|') ?{z${ bD  
S2 h  
xlabel('\theta_i') 'sQO0611S  
PRlo"kN  
ylabel('Amplitude') P_g0G#`4  
,0~ {nQj]  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) iY'hkrw  
{uM{5GSL  
axis([0 90 -0.5 3]) $)7f%II  
rLVc<595  
grid on ~0'l,  
u
lSTR f  
Rp=abs(rp).^2; }0nB'0|y  
U?ic$J]N  
Rs=abs(rs).^2; RH4n0=2  
,L:)ZZgN  
Rn=(Rp+Rs)/2; j6HbJ#]  
+,^M{^%  
Tp=1-Rp; M)pi)$&c  
6Vzc:8o>  
Ts=1-Rs; vhEs+j  
`LU,uz  
Tn=(Tp+Ts)/2; ~S>ba']  
7%!KAtc  
figure(2) Kcdd=2 [T  
6ch[B`[h,  
subplot(1,2,1); KdpJ[[Ug/  
'^(v8lCu  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) }o:sx/=u_  
1sLfjH hv  
legend('R_p','R_s','R_n') ^k<$N  
Q4:r$ &  
xlabel('\theta_i') vm^# aoDB  
hGXDu;{  
ylabel('Amplitude') |M>k &p,B-  
knzED~v@(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) OYp8r  
/)4r2x  
axis([0 90 0 1]) 3&Rqz9W  
S
fFR  
grid on W1`ZS*12D  
qm5pEort  
subplot(1,2,2); 3D dG$@  
[ =2In;
 
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Df3v"iCq}  
2U+p@}cQUA  
legend('T_p','T_s','T_n') qAik$.  
D?F5o^e"h<  
xlabel('\theta_i') {o<p{q  
#p`7gFl  
ylabel('Amplitude') QaBXzf   
/iuNdh  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) A3pQ?d[  
1H 6Wrik  
axis([0 90 0 1]) .T-p]9*p  
j5^b~F%  
grid on ]qHO{b4k  
6e|5qKr  
R0d|j#vP  
ve^MqW&S  

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 b+>godTi_  

Thanks