[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 Y!M&8;>  
"qb1jv#to  
1、光疏射向光密 3zV{cm0  
-Re4G78%  
clear -b?yzg,8  
+YS0yTWeX  
close all <,r(^Ntz  
~,199K#'  
n1=1,n2=1.45; 7od6`k  
qXI>x6?*  
theta=0:0.1:90; Vn4y^_H  
]{mz %\  
a=theta*pi/180; Hchh2  
GqYE=Q  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); I-=H;6w7  
"YUh4uZ~P  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); .fZ*N/  
=3~u.iq$  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 2aROY2  
3_AVJv ;N  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); fT:a{  
6xFvu7L_c;  
figure(1) ]KsL(4PY  
Lm-
yTMNPn  
subplot(1,2,1); F;I %9-R  
8efQ-^b.  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) vMDX  
_[eAA4h   
legend('r_p','r_s','|r_p|','|r_s|') H<gC{:S  
n/>^!S  
xlabel('\theta_i') s>A!Egmo  

W,\
LdQ  
ylabel('Amplitude') Pz=x$aY  
`i'72\(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) L?WF[nFR  
G-54D_
4  
axis([0 90 -1 1]) 9e`.H0  
H%}ro.u  
grid on HAkEJgV  
mBp3_E.t  
subplot(1,2,2); |U~m8e&:  
{C%#r@6  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) =th(Hdk17  
A,P_|  
legend('t_p','t_s','|t_p|','|t_s|') Z9TUaMhF  
"ggViIOw&  
xlabel('\theta_i') oNkASAd  
qHAZ)Tz  
ylabel('Amplitude') 3G4N0{i  
CG`s@5y>5  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) BA1|%:.   
U\crp T`  
axis([0 90 0 1]) >u6*P{;\  
AK7IPftlH  
grid on Sqc r -  
lur$?_gt  
Rp=abs(rp).^2; ,-4SVj8$P  
nBVR)|+M  
Rs=abs(rs).^2; lphELPh  
5BztOYn,  
Rn=(Rp+Rs)/2; mnZS](>  
\[nvdvJv  
Tp=1-Rp; y<53xZi  
t *8k3"  
Ts=1-Rs;  AU3Ou5  
`|Ll  
Tn=(Tp+Ts)/2; R(i2TAaaU  
Ql%0%naq1  
figure(2) )_MIUQ%  
u-31$z<<5}  
subplot(1,2,1); |GDf<\  
-T s8y  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) (c'=jJX  
Sxj _gn   
legend('R_p','R_s','R_n') rO_|_nV[  
B/iRR2h  
xlabel('\theta_i') 1X5*V!u  
17itC9U  
ylabel('Amplitude') 500qg({2]  
R5y+bMZ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) X_j=u1*5  
~JU :a@)  
axis([0 90 0 1]) ^/)!)=?  
h`_@eax  
grid on l$i^e|*  
K2W$I H:.  
subplot(1,2,2); B\/"$"
 
EB/.M+~a  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) af:wg]g  
~#doJ:^H3  
legend('T_p','T_s','T_n') #ny&bJj  
YivWvV  
xlabel('\theta_i') w""5T|  
f/FK>oUh  
ylabel('Amplitude') C:]&V*d.v4  
+<^TyIJ0  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5M.KF;P  
|bHId!d  
axis([0 90 0 1]) cY}Nr#%s@U  
aCL_cVOMR  
grid on 208dr*6U  
7\BGeI  
.szs?  
L4)@lmd3  
8?n6
\cF  

Thanks

学习学习 V9v80e {n4  

学习学习

谢谢了楼主分享

thanks

谢谢了楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

感谢楼主分享

2、光密射向光疏 RL
r;]j8cm  
=x}27f%-Mg  
clear _I+#K M  
DGdSu6s$  
close all ~^=QBwDW8N  
a;m-Vu!  
n1=1.45,n2=1; HKx2QFB  
yWu80C8q  
theta=0:0.1:90; F?e_$\M  
RUm1;MWs  
a=theta*pi/180; xlkEW&N&  
Q$G!-y+"i  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2));
Q u2W  
~j",ePl  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); fLAOA9  
RvvK`}/6  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ]H)
x
 
5YMjvhr?W  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); V[Fzh\2n  
+j&4[;8P:  
figure(1) _!H{\kU  
-?'r_
t  
subplot(1,2,1); 5E?{>1  
_?:jZ1wZ  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) [.^ol6  
f]#\&"  
legend('r_p','r_s','|r_p|','|r_s|') @"`}%-b  
dVYY:1PS  
xlabel('\theta_i') p@kRo#~l  

|,@D<  
ylabel('Amplitude') u3#+fn_  
_qR?5;v  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 26g]_Igq  
41Z@_J|&  
axis([0 90 -1.5 1.5]) I]`RvT  
l99Lxgx=  
grid on  NdRcA  
{PX&#,_  
subplot(1,2,2); OA*O =
 
pDZewb&cA  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) bwzx_F/  
<wk  
legend('t_p','t_s','|t_p|','|t_s|') %Y%r2  
=X?fA,  
xlabel('\theta_i') iq*im$9J  
s[{[pIH  
ylabel('Amplitude') ,eBC]4)B6  
\KnRQtlI  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =4MTb_  
b'\Q/;oz>  
axis([0 90 -0.5 3]) y62f{ks_/  
RbL?(  
grid on e?.j8Q~  
>2znn&gZ  
Rp=abs(rp).^2; =}#yi<Lt  
84QOW|1  
Rs=abs(rs).^2; S~);   
GMJ4v S  
Rn=(Rp+Rs)/2; %jzTQ+.%]^  
?OFa Q  
Tp=1-Rp; u:f ]|Q
 
`Y:]&w  
Ts=1-Rs; -}%J3j|R:  
iT :3e%  
Tn=(Tp+Ts)/2; Ob/)f)!!  
BDI@h%tJb:  
figure(2) uC;_?Bve  
_ l|%~  
subplot(1,2,1); QcL@3QC  
\W.CHSD  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) d}4NL:=&  
(U.Go/A#wE  
legend('R_p','R_s','R_n') ?Z 2,?G  
qUd7O](b=?  
xlabel('\theta_i') kw$7G1Q  
S/XU4i:aV  
ylabel('Amplitude') QEs$9a5TE  
=\< 7+nv  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Ab ,^y  
p-}X=O$  
axis([0 90 0 1]) Jj\4P1|'7  
$XhMI;h  
grid on cF8 2wg  
Rlewp8?LB  
subplot(1,2,2); .2fvRN92  
`f>
!/Zm%9  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) tLy:F*1i  
ZRxOXt&;  
legend('T_p','T_s','T_n') T#Z&*  
0SL{J*S4[#  
xlabel('\theta_i') F"]P|   
'GJB9i+a^  
ylabel('Amplitude') b)I-do+  
|/gt;H~:  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) cX-M9Cz  
6j(/uF4!#  
axis([0 90 0 1]) 5*%Gh&)  
r"d
IB@  
grid on ZIx-mC5  
gyvrQ, u  
,R[$S"]!SH  
l ;:IL\*1I