[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 \^7C0R-hX  
:+Om]#`Vls  
1、光疏射向光密 sm[94,26  
&e-U5'(6v_  
clear \.YS%"Vz  
$Iv2j">3)  
close all JM1R ;i6  
t58e(dgi  
n1=1,n2=1.45; l7#yZ*<v  
,C%eBna4Iq  
theta=0:0.1:90; WOuEWw=  
9$`lIy@B  
a=theta*pi/180; +)o}c"P!  
Vq;dJ%sY  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [(1c<b2r  
0cK{  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); -46C!6a  
sVG(N.y  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [kE."#  
b&1`NO  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); F1L:,.e`  
^&y$Wd]6  
figure(1) 34\(7JO  
}!IL]0q  
subplot(1,2,1); ,^#yo6-  
,U(1NK8o  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) "Ph^BUAb  
3Zi@A4Wu  
legend('r_p','r_s','|r_p|','|r_s|') 23~Sjr  
[JF150zr  
xlabel('\theta_i') V5*OA??k<  
Kq i4hK  
ylabel('Amplitude') o=0]el^A  
`ZC<W]WYX/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Yw#2uh  
y+7w,m2  
axis([0 90 -1 1]) U8 nH;}i  
GnvL'ESa@M  
grid on As>_J=8} 3  
w^t/9N
asi  
subplot(1,2,2); D_vbSF)  
yn#X;ja-  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) h:9Zt
0,  
S~|T4q(  
legend('t_p','t_s','|t_p|','|t_s|') _3ZYtmn.  
j_Yp>=+[  
xlabel('\theta_i') CHz+814  

hP15qKy  
ylabel('Amplitude') `]%|f  
AM!G1^c  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) H)n9O/u  
s_mS^`P7  
axis([0 90 0 1]) EAM5{Nc  
Cg(Y&Gxf.  
grid on MG.` r{5  
)==Jfn y  
Rp=abs(rp).^2; <u2}i<#  
DY`kx2e!  
Rs=abs(rs).^2; wp&=$Aa)'  
soQ1X@"0  
Rn=(Rp+Rs)/2; b9l;a+]d  
k?,1x
~  
Tp=1-Rp; ga`3 (  
:\|SQKD  
Ts=1-Rs; pS:4CNI{  
R~PA1wDZ  
Tn=(Tp+Ts)/2; =|Y,+/R?  
76`8=!]R  
figure(2) Q637N|01  
ynQ: >tw  
subplot(1,2,1); h5^Z2:#  
a*&B`77`|  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Sn|BlXrey  
"/wyZ  
legend('R_p','R_s','R_n') bJX)$G  
Ys\Wj%6A  
xlabel('\theta_i') qHrc9fB  
tIuCct-  
ylabel('Amplitude') ):[7E(F=  
32`{7a3!=  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]jo1{IcI  
r/u A.Aou^  
axis([0 90 0 1]) VT\F]Oa#  
H<PtAYFS  
grid on 6;ixa hZV  
*=V~YF:Qb  
subplot(1,2,2); qm"rY\:  
<4HDZ{"M  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) f}9zgWU  
?j"KV_
 
legend('T_p','T_s','T_n') PoxK{Y  
e?8HgiP-  
xlabel('\theta_i') ~Vr.J}]J  
iT2B'QI=<  
ylabel('Amplitude') ~T1XLu  
n$$SNWgM  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) o!kbK#k  
m}7iTDJR9  
axis([0 90 0 1]) *%%g{ 3$  
^
\4h<M  
grid on Z{]0jhUyNh  
3h$6t7=C  
.y!<t}  
1;Ou7T9w  
E2R&[Q"%  

2、光密射向光疏 }dgfqq  
|H;F7Y_  
clear Q(wx nm  
}$SavB#SBP  
close all <
$J>9k  
v%+:/m1  
n1=1.45,n2=1; D$ dfNiCH  
,|y:" s  
theta=0:0.1:90; &Sw%<N*r  
,)Me  
a=theta*pi/180; ?!A7rb/tj  
GpY"fc%  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $'BSH4~|.  
a, k'Vk{  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); [uC]*G]  
Mo?~_|}  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); TC!Yb_H}gN  

[^Os kJ4  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); nAW:utTB  
?Y-%'J(  
figure(1) +ga k#M"n\  

g!@<n1 L  
subplot(1,2,1); ]m g)Q:d,  
QM5R`i{r  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) -]/I73!b  
BLfTsNzmt  
legend('r_p','r_s','|r_p|','|r_s|') g
d%NkxmW  
?pr9f5  
xlabel('\theta_i') ehzM)uK  
@$S+Ne[<  
ylabel('Amplitude') *6sl   
i UCXAWP  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) {MtpkUN  
G18F&c~  
axis([0 90 -1.5 1.5]) 1O/+
8yw  
@e(o129  
grid on [
~-9i&Z  
7X0Lq}G@  
subplot(1,2,2); fd+hA  
^o^H3m  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) fkuLj%R  
xHL( !PF  
legend('t_p','t_s','|t_p|','|t_s|') Aydm2!l1  
h1B? 8pD
 
xlabel('\theta_i') wQqb`l7+  
Yw4n-0g  
ylabel('Amplitude') aoM
qSwF=  
UtPLIal  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \Jx04[=  
 aC$B2
  
axis([0 90 -0.5 3]) \|H!~)h$1  
f,h
 J~  
grid on x'+T/zw  
15%w 8u  
Rp=abs(rp).^2; _-q.Q^  
tjIl-IQ  
Rs=abs(rs).^2; !nqUBa  
/qMG=Z  
Rn=(Rp+Rs)/2; .z]Wyx&/U  
g[1gF&  
Tp=1-Rp; S|SV$_ (  
%-)H^i~]%  
Ts=1-Rs; SX<` {x&L  
'qZW,],5  
Tn=(Tp+Ts)/2; &~8oQC-eF  
*,e:]!*  
figure(2) cc,^6[OH@  
sF|5XjQ  
subplot(1,2,1); 0"kbrv2y  
kStnb?nk  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) s
x7eC  
oC<.=2]  
legend('R_p','R_s','R_n')
d ^^bke$~  
6g 5#TpCh  
xlabel('\theta_i') S)cLW~=z  
Id_2PkIN$~  
ylabel('Amplitude') E)TN,@%  
NG--6\  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3vuivU.3  
.n#@$ nGZ  
axis([0 90 0 1]) Wi*.TWz
3  
tX5"UQA  
grid on -wp|RD,}(  
@OV|]u  
subplot(1,2,2); k_sg ?(-!o  
h}*/Ge]aM  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) &,}j
#3<  
G
}:w@}h/  
legend('T_p','T_s','T_n') gbI^2=YT'  
Sm)Ha:[4  
xlabel('\theta_i') M.x=<:upp  
y`\@N"Cf  
ylabel('Amplitude') ~k!j+>yT  
419x+3>}  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]Y%Vio  
!j:9`XD|  
axis([0 90 0 1]) "Om=
N@?  
6N",-c  
grid on *C5R}9O5  
+aJ>rR  
u])b,9&En  
brW :C?}  

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 G 8g<>d{j  

Thanks