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200833 2017-11-26 22:33

利用MATLAB光学仿真（1）

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 0]^ke:(#  
auV<=1<zJ  
1、光疏射向光密 ;wvhe;!  
MZInS:Vj  
clear tHV81F1J  
('7qJkV  
close all !XJS"owr  
Fj~,>   
n1=1,n2=1.45; ^;]Q,*Q  
y7)$~R):-  
theta=0:0.1:90; \ZPmPu9^(  
f mQ`8b  
a=theta*pi/180; <; (pol|  
?$&iVN^UA  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); r.T!R6v}  
[ym ynr3M  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); .W)%*~ O!;  
P,/=c(5\}  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2));  "0( _  
0j )D[K  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); chr^>%Q_  
vw/L|b7G  
figure(1) W<AxctId  
vUU)zZB ~  
subplot(1,2,1); } JePEmj  
|wFfVDp  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) lQSKY}h  
?i8a)!U  
legend('r_p','r_s','|r_p|','|r_s|') 3h-C&C  
KPcOW#.T  
xlabel('\theta_i') utDjN"  
]a}K%D)H  
ylabel('Amplitude') 9+o`/lk1  
ogrh"  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) oju}0h'1  
^+m6lsuA  
axis([0 90 -1 1]) :QV-!  
Z+*t=?L,,G  
grid on C;C= g1I}  
/d\#|[S  
subplot(1,2,2); Bi'qy]%  
n\ yDMY  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) )_\ZUem  
vCB0 x:/  
legend('t_p','t_s','|t_p|','|t_s|') >*A"tk#oR  
XsVp7zk\  
xlabel('\theta_i') uFzvb0O`O  
5#|f:M]Bo|  
ylabel('Amplitude') ).BZPyV<  
$ MN1:ih  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) EqV]/0-\  
(rM-~h6g  
axis([0 90 0 1]) i^2yq&uT(  
xKl!{A9$w  
grid on CSC sJE#4  
KG! W,tB  
Rp=abs(rp).^2; $Z!$E,@c  
=68CR[H  
Rs=abs(rs).^2; cM= ? {W7~  
2th>+M~A  
Rn=(Rp+Rs)/2; Z?7XuELKV  
c%N8|!e  
Tp=1-Rp; B`Q~p 92  
U0PQ[Y#\  
Ts=1-Rs; <u 'q._m  
S8 {Sb>  
Tn=(Tp+Ts)/2; xTy[X"sJ  
^"g # !  
figure(2) R*v~jR/   
@.PVUP  
subplot(1,2,1); -jv%BJJlX  
<d$L}uQwg  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Xlw8> .\  
v7i5R !  
legend('R_p','R_s','R_n') km)5?  
s C/5N  
xlabel('\theta_i') kFJ sB,2-  
$<y10DfO  
ylabel('Amplitude') mr`Lxy9e  
b?p_mQKtZ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) w}OJ2^  
ymIjm0jVh  
axis([0 90 0 1]) y}'c)u  
NaR/IsN8%  
grid on _x.<Zc\x  
1nt VM+  
subplot(1,2,2); 4! Cu>8B  
BRTM]tRZ  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) "I)*W8wTn  
jK[~d Y  
legend('T_p','T_s','T_n') kiW|h)w_,v  
&I&:  
xlabel('\theta_i') DPU%4te  
Mn- f  
ylabel('Amplitude') Lq&;`)BJ  
`30og]F0YJ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) rj.]M6#  
wTpjM@F?J|  
axis([0 90 0 1]) 9^;)~ G  
DE{tpN  
grid on vS! TnmF  
0I8w'/s_g9  
[attachment=80479] @AXRKYQ{t  
986y\9Zu  
[attachment=80478] 8y<NT"  
200833 2017-11-26 22:36
2、光密射向光疏 D!K){ E  
v4?qI >/  
clear [hLSK-K 9  
.,)C^hs@  
close all 7X Z5CX&  
,qx;kJJ  
n1=1.45,n2=1; {^r8uKo:~  
8{m5P8w'  
theta=0:0.1:90; d)G' y  
'7+e!>"  
a=theta*pi/180; hdi/k!9[\  
eV?._-G  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); cJ6n@\  
`}b#O}z)^  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); e|`QW|9 .  
NTnjVU }  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); >)/,5VSE  
C^}2::Qu  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); "T*Sg  
j}0W|*  
figure(1) `N+A8  
9t 3mU:  
subplot(1,2,1); SDdefB  
u7rA8u|TO  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) P1<Y7 +n  
a(+.rf;  
legend('r_p','r_s','|r_p|','|r_s|') ZT UaF4k j  
PT9,R^2T!  
xlabel('\theta_i') ZnX]Q+w  
3?Ml]=u  
ylabel('Amplitude') YbMeSU/sX  
z9@Tg= #i  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \DP*?D_}?  
SF$]{ X  
axis([0 90 -1.5 1.5]) qIbp0`m  
j,q8n`@  
grid on bCM&Fe0GM  
kC =e>v  
subplot(1,2,2); B{\cV-X$0  
K~j&Q{yws@  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 0KW@j>=jK  
\q2#ef@2  
legend('t_p','t_s','|t_p|','|t_s|') <,U=w[cH  
@a AR99M  
xlabel('\theta_i') A]fN~PR  
'8.r   
ylabel('Amplitude') 6mP s;I  
'cs!(z-{x  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) !.\EU*)1  
5XSr K  
axis([0 90 -0.5 3]) zTDB]z!A  
-WDU~VSU  
grid on g7($lt>  
j2V"w&>b}  
Rp=abs(rp).^2; Nm{\?  
J%G EIe|  
Rs=abs(rs).^2; Yp_ L.TTb  
}?"}R<F|M,  
Rn=(Rp+Rs)/2; X?,ly3,  
hE|Z~5\Y,>  
Tp=1-Rp; oF1{/ERS  
e):jQite   
Ts=1-Rs; <eU1E }BDQ  
VR86ok  
Tn=(Tp+Ts)/2; M2K{{pGJ[&  
N=1zhI:VaQ  
figure(2) 4uQ\JD(*Eu  
0GUm~zi1  
subplot(1,2,1); )tH.P: 1~,  
g@IV|C( *0  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 2TH13k$  
BCDmce`=l  
legend('R_p','R_s','R_n') lHRs3+  
Lk?%B)z  
xlabel('\theta_i') m5!~PG:_  
}2WscxL  
ylabel('Amplitude') qJjXN+/D  
iFJ2dFA  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) gN2$;hb?  
QucDIZ  
axis([0 90 0 1]) $uw[X  
*&WkorByW  
grid on C,*3a`/2M^  
(mO{ W   
subplot(1,2,2); <evvNSE  
Ttr)e:  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) "4Joou"U  
9YpgzCx Z  
legend('T_p','T_s','T_n') 9q +I  
J1i{n7f=@  
xlabel('\theta_i') C5}c?=#bdf  
ChvSUaCS  
ylabel('Amplitude') cB$OkaG#  
K|i:tHF]@  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /_WA F90R?  
&cZQ,o  
axis([0 90 0 1]) C%2BDj  
vY 0EffZ  
grid on F$L2bgQR?'  
" ^v/Y  
[attachment=80481] $|kq{@<  
jL9g.q4^  
[attachment=80480]
大博归来 2017-11-27 08:03
感谢楼主分享
hit2011 2017-12-02 14:58
这个在《MATLAB在光学中的应用》这本书里都有
direwolf100 2017-12-05 22:34
谢谢了楼主分享
jabil 2022-03-07 13:54
thanks
cici2015 2022-08-03 07:32
谢谢了楼主分享
13428299720 2023-07-21 20:02
学习学习
lalallaal 2025-02-28 10:13
学习学习 [g/ &%n0^  
jabil 2025-03-07 09:40
Thanks
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