[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 "HIXm  
#gbH^a'  
1、光疏射向光密 )mN9(Ob!  
\E4B&!m  
clear /!&R9!6 :  
zA+@FR?  
close all L2z2}U=<  
8g/
F)~s^F  
n1=1,n2=1.45; +C{p%`<  
w7kJg'X/6  
theta=0:0.1:90; NeOxpn[  
E+xuWdp.*  
a=theta*pi/180; #Z!b G?="  
X]*QUV]i  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); =[tSd)D,y  
j|_E$L A\  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); d5j_6X  
O}ejWP8>  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Sr.;GS5i  
x8#ODuH  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); u=l1s1>  
$0Yh!L?\  
figure(1) omX?Bl  
2&(sa0*y  
subplot(1,2,1); p9ZXbAJ{  
_%@=Uc6V  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) =!MY4&YX  
:Ao!ls'=  
legend('r_p','r_s','|r_p|','|r_s|') RMYP"  
-p,x&h,p  
xlabel('\theta_i') T=Z.U$  
bha?eN  
ylabel('Amplitude') ./-JbW  
B5am1y{P#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) L;t)c  
.w? .ib(  
axis([0 90 -1 1]) Oxx^[ju~  
t,%iL  
grid on b3qc_  
'Pltn{iq[  
subplot(1,2,2); f<jb=\}x  
"E=j|q  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) I*[tMzE  
<g2_6C\j  
legend('t_p','t_s','|t_p|','|t_s|') m>&HuHf  
'W. Vr
4  
xlabel('\theta_i') 6gO9 MQY  
^(x^6d  
ylabel('Amplitude') Y;J*4k]  
P* #8ZMA<  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) WgGm#I>K  
-7-['fX  
axis([0 90 0 1]) @Cq? :o<  
rJfqA@  
grid on Zf*r2t1&P  
5MxL*DB=b  
Rp=abs(rp).^2; 2YwVU.*>  
r8MZvm2  
Rs=abs(rs).^2; vlWw3>4  
I=DLPgzO9  
Rn=(Rp+Rs)/2; QGnxQ{ko  
"kW!{n  
Tp=1-Rp; -f(/
B9}  
wOgE|n
 
Ts=1-Rs; rj
A@U<o  
[p
Og'  
Tn=(Tp+Ts)/2; !|wzf+V  
h5%|meZQb  
figure(2) yYJY;".H  
/ONV5IkPy  
subplot(1,2,1); &Y>zT9]$K  
x ,/TXTZ6  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Eh8Pwt7C@  
,8Iv9M}2  
legend('R_p','R_s','R_n') %uESrc-;  
N"5fmY<  
xlabel('\theta_i') EYS>0Y  
D}mL7d1  
ylabel('Amplitude') J@"utY6N  
1cN')"  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) XH4d<?qu  
PK6iY7Qp)  
axis([0 90 0 1]) *U7
%|wd  
KpZ:Nh$  
grid on TvhJVVQ+?  
!R{R??  
subplot(1,2,2); *b(wVvz  
6Y*;{\Rd  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) [W,|kDK  
o3Ot.9L  
legend('T_p','T_s','T_n') 0NE{8O0;Fr  
hXL|22>w<  
xlabel('\theta_i') Ws[D{dS/  
&]p}+{ (>  
ylabel('Amplitude') h^|5|l  
'A{h iY  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) L^Wz vv]  
D>ef  
axis([0 90 0 1]) X~U >LLr  
m
O rWJ~=  
grid on #B}?Zg  
{eZ{]  
C0)Z6  
C*~aSl7  
%IZ)3x3l  

2、光密射向光疏 mf$j03tu  

K'b*A$5o  
clear U@lV  
wz(K*FP  
close all [s6C ZcL  
khX|"d360  
n1=1.45,n2=1; a:!uORQby  
)c<6Sfp^B  
theta=0:0.1:90; L:f)i,S"5q  
UZxmhsv  
a=theta*pi/180; h[Tk;h  
[/9(NUf  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); f=:.BR{  
H#(<-)j0_  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); n~r 9!m$<  
)iE"Tl  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2));  M[P^]J@  
XAic9SNu;  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); \_ow9vU
 
Wr%7~y*K  
figure(1) ;)/
@Xx  
V|?WF&  
subplot(1,2,1); I0w%8bs  
wK5_t[[  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) >M4"|W U_  
%$X\"  
legend('r_p','r_s','|r_p|','|r_s|') iD_TP  
z1j|E :  
xlabel('\theta_i') pM$ @m]  
2<6j1D^jM  
ylabel('Amplitude')
(F5ttQPh  
sBW3{uK  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9YKDguG  
s (PY/{8  
axis([0 90 -1.5 1.5]) aj7dH5SZl  
1i-[+  
grid on ,b.n{91[]x  
qu{mqkfN>  
subplot(1,2,2); K8Zt:yP  
r_o<SH  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) (2txM"Dja  
:Yvb
U Y  
legend('t_p','t_s','|t_p|','|t_s|') ;93KG4a  
O%$O(l  
xlabel('\theta_i') %$n02"@  
'
`o[+.  
ylabel('Amplitude') k|j:T[_  
TVkcDS  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) (V9h2g&8L  
rg)h
5G  
axis([0 90 -0.5 3]) PrnrXl S  
,U=E[X=
H  
grid on xs1bxJ_R  
3M*Y= ?pI  
Rp=abs(rp).^2; " i`8l.Lc  
V5s&hZZYa  
Rs=abs(rs).^2; 42@a(#z(U  
~ x`7)3  
Rn=(Rp+Rs)/2; iZTa>@  
l>Av5g)  
Tp=1-Rp; mxL;;-  
0xP:9rm  
Ts=1-Rs; jgRCs.6  
2Ow<`[7  
Tn=(Tp+Ts)/2; I~RcOiL)  
F6&P~H  
figure(2) Wo3'd|Y~i  
sp{j!NSL  
subplot(1,2,1); [=~!w_  
!R{em48D  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) }su6izx  
9[{sEg=C$e  
legend('R_p','R_s','R_n') A2_Ls;]  
Q\WXi  
xlabel('\theta_i') ~d+O/:=K_  
A$m<@
%Sz  
ylabel('Amplitude') F@^N|;_2  
FO^24p  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) XGk}e4;_  
]Zv,  
axis([0 90 0 1]) cG
(0q[  
%8<2>  
grid on #M:B3C!ouY  
RAOKZ~`  
subplot(1,2,2); m)k-uWc$C  
[x$;XqA  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) c}cG<F  
3N3*`?5c<  
legend('T_p','T_s','T_n') Ij,Yuo  
B$`d&7I;D  
xlabel('\theta_i') !PI0oh  
[oJ& J>U'  
ylabel('Amplitude') ?\d5;%YSr  
B3.X}ys#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) I1v@\Rb  
1:5P%$?b  
axis([0 90 0 1]) w3d\0ub  
At|ht  
grid on 5iv@@1c  
Xky@[Td*  
(xQI($Wq*M  
oFn4%S:  

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 7!]k#|u  

Thanks