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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 fx@Hd!nO~"  
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1、光疏射向光密 ssVO+ T  
t5dk}sRF  
clear ?n o.hf  
~~eR,HYk  
close all T_ ifDQX;  
n_5m+ 1N  
n1=1,n2=1.45; 6.? Ke8iC  
8 1;QF_C  
theta=0:0.1:90; siveqz6h  
=!{7ZSu\  
a=theta*pi/180; &oJ=   
bDI#'F  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); tRU+6D <w  
3=w$1.B d  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6 R}]RuFQ  
*,g|I8?%VD  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); g.-{=kZ   
S;#S3?G  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); S]3K5Z|  
L&3Ak}sh  
figure(1) 4B>N[#-0=  
0ut/ ')[  
subplot(1,2,1); 5o;M  
G+Ft2/+\  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ' b41#/-  
wc7gOrPpm  
legend('r_p','r_s','|r_p|','|r_s|') u 0M[B7Q  
dh r)ra]  
xlabel('\theta_i') 8,\toT7  
2pR+2p`  
ylabel('Amplitude') '0QrM,B9  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7: 7i}`O  
\"!Fw)wj  
axis([0 90 -1 1]) ~,[<R  
r;}%} /IX  
grid on @=CN#D12  
ziUEA>m */  
subplot(1,2,2); Pf`HF|NI  
F_>OpT  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) OwhMtYq  
pVgzUu7  
legend('t_p','t_s','|t_p|','|t_s|') D@9adwQb  
z ((Y\vP  
xlabel('\theta_i') !S6zC >  
o+{]&V->gN  
ylabel('Amplitude') 1/b5i8I2 v  
a2J01B  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) VX+:k.}  
NDsF<2A4  
axis([0 90 0 1]) } a#RX$d&  
p0c*)_a*  
grid on S\$=b_.  
ft |W  
Rp=abs(rp).^2; ?K5S{qG'O  
p'SclH[   
Rs=abs(rs).^2; 0?@;zTE0  
-M\ae  
Rn=(Rp+Rs)/2; jtS-nQ|  
rQE:rVKVh  
Tp=1-Rp; bF_SD\/  
d v8q&_  
Ts=1-Rs; JDbRv'F:(  
2%!yV~Z  
Tn=(Tp+Ts)/2; EV=/'f[++  
X ? eCK,  
figure(2) tk]>\}%  
<c; U 0! m  
subplot(1,2,1);  m$XMq  
l~mC$>f  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) GXk]u  
ya`Z eQ-p  
legend('R_p','R_s','R_n') ~<Eu @8+_  
luvxwved  
xlabel('\theta_i') 3Gk\3iU!  
Vi 9Kah+  
ylabel('Amplitude') oy[>`qyz  
y=HM]EH>  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) bukdyo;l  
T<ka4  
axis([0 90 0 1]) 4tA`,}ywPq  
h/s8".\  
grid on '&LH9r  
u2o196,Ut  
subplot(1,2,2); FE=vUQXE2  
O\X=vh/D  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) r]3v.GZy  
(F+]h]KSi  
legend('T_p','T_s','T_n') |s!<vvp]  
Z,_EhEm  
xlabel('\theta_i') 7W.z8>p  
k*u4N  
ylabel('Amplitude') ;659E_y>  
=WEWs4V5A  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =38c}(  
a/Ik^:>m  
axis([0 90 0 1]) =a $7^d  
Bk;/>gD  
grid on c~)H" n  
:G4)edwe  
[attachment=80479] lz:+y/+1  
,<O|#`?"@G  
[attachment=80478] W@t{pXwLv  
200833 2017-11-26 22:36
2、光密射向光疏 T]lVwj  
# XeEpdE  
clear jc7NYoT:  
{s3j}&  
close all !{S HlS  
K*aGz8N  
n1=1.45,n2=1; "vF7b|I  
bnxR)b~  
theta=0:0.1:90; f}:W1&LhI?  
~+&Z4CYb  
a=theta*pi/180; ;|D8"D6]  
7NP Ny  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 9._Osbp3P  
;hkzL_' E)  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Y/`*t(/5  
[' cq  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ^ jT1q_0  
VN >X/  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Ir$:e*E>  
 $&to(  
figure(1) #2Z\K>L  
0RkiD8U5  
subplot(1,2,1); KO&oT#S  
3vRBK?Q.y  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) |s{[<;  
tN&_f==e  
legend('r_p','r_s','|r_p|','|r_s|') c@)}zcw*  
tjt#2i8/  
xlabel('\theta_i') &J}w_BFww  
\"AzT{l!;  
ylabel('Amplitude') .h@HAnmE  
&dvL`  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~4C:2  
-A;4""  
axis([0 90 -1.5 1.5]) 7 J+cs^2  
=d`/BDD  
grid on [;8vO=Z  
TP?HxO_C  
subplot(1,2,2); :}}~ $$&  
6n5>{X  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) # vBS7ba  
= *~Q5F  
legend('t_p','t_s','|t_p|','|t_s|') Th\t6K~  
Sn ~|<Vf  
xlabel('\theta_i') T!pjv8y@R  
&a];"2  
ylabel('Amplitude') l1wYN,rv  
s^Wh!:>r/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) gyAKjLqqpi  
V=DT.u  
axis([0 90 -0.5 3]) 1E|~;wo\  
! fSM6Vo  
grid on {'R\C5 :D7  
Lr}>Md  
Rp=abs(rp).^2; ~76qFZe-  
-)2sR>`A%  
Rs=abs(rs).^2; 1xF<c<  
'AjDB:Mt$  
Rn=(Rp+Rs)/2; \"^.>+  
j,BiWgj$8  
Tp=1-Rp; T6=q[LpsKN  
=f*Wj\  
Ts=1-Rs; >:yU bo)  
x&PVsXdt5m  
Tn=(Tp+Ts)/2; e$+/;MRq  
l{b*YUsz>  
figure(2) XK7$Xbd  
@g~hYc  
subplot(1,2,1); (iw)C)t*u  
=TzmhX5  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) X_nxC6[m%  
Z(=U ZI?  
legend('R_p','R_s','R_n') zjVQ\L  
!<P|:Oo*Dl  
xlabel('\theta_i') 0cxk)l%  
g.re`m|Aj  
ylabel('Amplitude') ^Td_B03)  
?U;KwS]%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) K V-}:u(  
'QrvkQ  
axis([0 90 0 1]) %tRQK$]c  
a7Fc"s*  
grid on jg7 WMH"`  
t@(`24  
subplot(1,2,2); KS6H`Mm}/  
UFLN/  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) @Pt,N qj:  
bim 82<F  
legend('T_p','T_s','T_n') h/t{= @ .5  
ic4mD:-up  
xlabel('\theta_i') O0Vtvbj  
b+g(=z+  
ylabel('Amplitude') K3Wh F  
=Bq3O58+  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :+m8~n$/  
@@O=a  
axis([0 90 0 1]) ~fDMzOd  
*yx&4)Or  
grid on M^E\L C  
7 q%|-`#  
[attachment=80481] keBf^NY  
Y8Bc &q}  
[attachment=80480]
大博归来 2017-11-27 08:03
感谢楼主分享
hit2011 2017-12-02 14:58
这个在《MATLAB在光学中的应用》这本书里都有
direwolf100 2017-12-05 22:34
谢谢了楼主分享
jabil 2022-03-07 13:54
thanks
cici2015 2022-08-03 07:32
谢谢了楼主分享
13428299720 2023-07-21 20:02
学习学习
lalallaal 2025-02-28 10:13
学习学习 bYuQ"K A$  
jabil 2025-03-07 09:40
Thanks
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