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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 G^Tk 20*  
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1、光疏射向光密 KEr\nKT1  
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clear jE/oA<^  
8im@4A+n`  
close all NAFsFngqH  
+M\8>/0oA  
n1=1,n2=1.45; 7C,T&g 1:  
=y]$0nh  
theta=0:0.1:90; I9y.e++/  
mY&ud>,U:  
a=theta*pi/180; W{"XJt_  
TH1B#Y#<J  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); hfM;/  
Q9?t[ir  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 'c`jyn  
W?RE'QV8  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5z/Er".P  
y=sGe!^  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); X" R<J#4  
i6PM<X,{;  
figure(1) (!K_Fy@  
]F*3"y?)2  
subplot(1,2,1); $p* p  
o4^Fo p  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) i8pU|VpA  
arZ@3]X%a  
legend('r_p','r_s','|r_p|','|r_s|') $&P?l=UG  
f"5g>[ 1  
xlabel('\theta_i') JWO=!^  
TYgQJW?  
ylabel('Amplitude') R4's7k  
1&)_(|p[C  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @1R P/y%  
Ss ?CfRM  
axis([0 90 -1 1]) JC;^--0(z  
Xh+ia#K  
grid on 8nNsrat  
Hgc=M  
subplot(1,2,2); Uu p(6`7  
}E^S]hdvz  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) MQ/ A]EeL  
+SXIZ`  
legend('t_p','t_s','|t_p|','|t_s|') % g"eV4 j  
 $6>?;  
xlabel('\theta_i') LxN*)[Wb  
2s ,8R  
ylabel('Amplitude') +{`yeZ9S  
*<V^2z$y_  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ni CE\B~  
``Q 2P%  
axis([0 90 0 1]) 'C+;r?1!h  
cd@.zg'sYn  
grid on !UBO_X%dz  
=H]F`[B=  
Rp=abs(rp).^2; wzcai 0y*  
v[k5.\No  
Rs=abs(rs).^2; J QKdW  
h+7>#*DH  
Rn=(Rp+Rs)/2; ")#<y@Rv  
<|6%9@  
Tp=1-Rp; M++0zhS  
Ps[$.h  
Ts=1-Rs; %uESrc-;  
V-O(U*]  
Tn=(Tp+Ts)/2; j} HFs0<L  
|lQ;ALH!  
figure(2) >O`l8tM  
%B2XznZ:  
subplot(1,2,1); KpZ:Nh$  
FVWfDQ$&v  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) %FkLQ+v/<  
.#6MQJ]OH  
legend('R_p','R_s','R_n') Va<H U:<  
)6oGF>o>  
xlabel('\theta_i') $K}. +`vVO  
&]p}+{ (>  
ylabel('Amplitude') s'I)A^i+  
=jAFgwP\  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) OYwGz  
(RL>Hn;.  
axis([0 90 0 1]) xN->cA$A  
:KE/!]z  
grid on HD`>-E#  
j+ ::y) $  
subplot(1,2,2); 7!V @/S}7  
qt?*MyfV  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) f[~1<;|-  
$xW **&  
legend('T_p','T_s','T_n') 0irr7Y  
? 5|/ C  
xlabel('\theta_i') [I+9dSM1t  
mf$j03tu  
ylabel('Amplitude') ur%$aX)  
%_)zWlN  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) JJk#,AP  
kA?_%fi1  
axis([0 90 0 1]) d,#.E@Po  
]r"Yqv3  
grid on 5~VosUp e7  
w9&#~k]5  
[attachment=80479] LsTffIP  
Eu<r$6Q0}o  
[attachment=80478] 7>.OVh<  
200833 2017-11-26 22:36
2、光密射向光疏 y?:dE.5p|  
ZwJciT!_~  
clear ,x#ztdvr  
@EZ>f5IO+  
close all 1i-[+   
JZx%J)  
n1=1.45,n2=1; 3 N%{B  
f1cl';  
theta=0:0.1:90; &YX6"S_B  
Jt=>-Spj  
a=theta*pi/180; h|W%4|]R)  
lX;mhJj!  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); PrnrXl S  
"iek,Y}j7  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); [j0w\{  
|5ONFd e"0  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); yYX :huw  
~3 @*7B5Q  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); VO-784I  
+Jq`$+%C  
figure(1) =] KIkS3  
Bbs 0v6&,  
subplot(1,2,1); ;1E_o  
4x]NUt  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Mjw[:70  
.0 X$rX=  
legend('r_p','r_s','|r_p|','|r_s|') ?!m m a\W  
a7 )@BzF#  
xlabel('\theta_i') ?N _)>&b  
ZgBckb  
ylabel('Amplitude') 9:\A7 =  
 2}!R T  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) S w "|iBZ@  
%mmxA6I  
axis([0 90 -1.5 1.5]) UzJ!Y/5  
/&6Q)   
grid on >3$uu+p1F  
QpJ IDM/  
subplot(1,2,2); 8E-Ip>{>  
7YD\ !2b  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) fv/v|  
VLx T"]f  
legend('t_p','t_s','|t_p|','|t_s|') `W="g6(  
x3_,nl  
xlabel('\theta_i') pKYLAt+^>  
K"I{\/x@  
ylabel('Amplitude') > XZg@?Iw  
_-(z@  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \`&xprqAw  
d}pGeU'  
axis([0 90 -0.5 3]) qs "s/$  
wvX"D0eVn  
grid on ec#_olG%  
$'y1 Po'2  
Rp=abs(rp).^2; Z{ %Uw;d  
Bd QQ9$@5  
Rs=abs(rs).^2; eA10xpM0  
~6MMErSj  
Rn=(Rp+Rs)/2; ~{9x6<g!  
FfjC M7?  
Tp=1-Rp; y^, "gD  
%qONJP  
Ts=1-Rs; <BQ%8}  
z 3Zu C{  
Tn=(Tp+Ts)/2; #'#4hJ*YC  
HoMQt3C  
figure(2) @H3|u`6V  
2"zIR (  
subplot(1,2,1); rx{#+ iw  
:^K~t!@  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) (tTLK0V-|3  
YdPlN];[  
legend('R_p','R_s','R_n') i4 P$wlO  
_AVy:~/  
xlabel('\theta_i') uAChu]  
N4' .a=1  
ylabel('Amplitude') ER/\ +Z#Z  
nIG[{gGX  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) R,uJK)m  
W5TqC  
axis([0 90 0 1]) 0qOM78rE  
}`#j;H$i  
grid on "MW55OWYU  
//VG1@vaVX  
subplot(1,2,2); ><MGZ?-N  
\? J=mE@;1  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) w6%l8+{R  
F>p%2II/  
legend('T_p','T_s','T_n') AsV8k _qZL  
<?{ SU   
xlabel('\theta_i') ))c*_n  
jc3ExOH  
ylabel('Amplitude') hg(KNvl  
9c#L{in  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) JiG8jB7%}  
cKaL K#~  
axis([0 90 0 1]) ?U7&R%Lh`  
}Ox2olUX  
grid on Fj '\v#h  
Vjv6\;tt8  
[attachment=80481] #1gTpb+t  
1t!&xvhG  
[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 FZLzu  
jabil 2025-03-07 09:40
Thanks
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