[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!,bw&  
'8zd]U  
1、光疏射向光密 o_Z9\'u  
X<IW5*  
clear Q/3
*65  
@"NP`#
 
close all 'z,kxra|n  
bL* b>R[x  
n1=1,n2=1.45; x[};x;[ZE  
*w0|`[P+h  
theta=0:0.1:90; nG3SDL#(k  
{+#{Cha  
a=theta*pi/180; 9;%$  
0cKsGDm  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); m-4#s  
`lE&:)  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); : 8>zo  
4|&/#Cz^Y  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); :Ef!gpS}?R  
.S|T{DMQ[  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); _Ycz@Jn  
{sB-"NR`K  
figure(1) Bj4c_YBte  
p
}sM"}Ul  
subplot(1,2,1); ssQ1u.x9  
sryA(V  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) IY6Ll6OK  
B!J?,SB  
legend('r_p','r_s','|r_p|','|r_s|') }iDRlE,  
Pi=FnS  
xlabel('\theta_i') <2
@t~9  
(BtU\f#d  
ylabel('Amplitude') p_BG#dRM  
TJRp/BP  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) EsWB|V>  
{@L{l1|0  
axis([0 90 -1 1]) >F^$ ' b]  
3(J>aQZuI  
grid on eD7\,}O  
ESoqmCJjb:  
subplot(1,2,2); )MIw/  
gNxv.6Pp=  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) z)KoK`\mE"  
;p*L(8<YI  
legend('t_p','t_s','|t_p|','|t_s|') SE(<(w  
>.P*lT  
xlabel('\theta_i') VB |k  
2u_=i$xW  
ylabel('Amplitude') W:n\,P  
3F;0a ;[  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =CFg~8W  
Eyf17  
axis([0 90 0 1]) fXnTqKAfu6  
jN{k }  
grid on 8bMw.u=F  
Rq|5%;1  
Rp=abs(rp).^2; bZWR.</  
PJKY$s.  
Rs=abs(rs).^2; d
k]  
! weYOOu  
Rn=(Rp+Rs)/2; 7Y~5gn  
kKbbsB  
Tp=1-Rp; ~7}no}7  
n}Thc6f3D  
Ts=1-Rs; UE_>@_T  
oU3gy[wF;b  
Tn=(Tp+Ts)/2; 6k,@+@]t.  
H"
pY
j  
figure(2) )N{PWSPs  
w0js_P-uv  
subplot(1,2,1); gjT`<CW  
eWYet2!Q  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) #F .8x@  
>Gg[J=7`  
legend('R_p','R_s','R_n') Jp)PKS ![  
T06w`'aL  
xlabel('\theta_i') FhH*lO&  
UBM8l  
ylabel('Amplitude') ')F@em  

-{eiV0<^  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +A,cdi9z  
0_y&9Te  
axis([0 90 0 1]) )tV]h#4  
O{]}{Ss  
grid on 0~<t :q!  
(#je0ES  
subplot(1,2,2); +f]I7e:qp  
:1iXBG\  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) %iV\nFal>  
cEJ_z(\=hr  
legend('T_p','T_s','T_n') &n6 |L8  
:i
?c  
xlabel('\theta_i') ,aWfGh#$  
T^xp2cZ  
ylabel('Amplitude') Vyx&MU.-J  
IfRrl/!nw  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^kB9 I8u  
1d.>?^uE  
axis([0 90 0 1]) OK}8BY  
=g@hh)3wP  
grid on A]V<K[9:b  
AQ.q?'vE)  
SR)@'-Wd  
|("5 :m  
78b9Sdi&  

2、光密射向光疏 L/cbq*L  
2
,%ne(  
clear lu.2ZQE
 
xhMdn3~U  
close all ]7"mt2Q=3  
Nb{oH+$b  
n1=1.45,n2=1; Wq
U$cQD"  
8|Y^z_C  
theta=0:0.1:90; ma*9O |v^  
{k~$\J?.  
a=theta*pi/180; u09OnP\  
qOa-@
M
N  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2));
`^N;%[c`z  
CnA*o 8w  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 7y`
~T+  
r*3XM{bZ/@  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); !8s:3]  
/3Gv51'  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2));
IweQB}d  
qC|re!K  
figure(1) %F/tbXy{  
wy&*6>.  
subplot(1,2,1); ;[zx'e?!  
B'0Il"g'  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) CC87<>V  
}&naP  
legend('r_p','r_s','|r_p|','|r_s|') cE]kI,Fw,M  
 3i$AR  
xlabel('\theta_i') p9sxA|O=y  
mg;AcAS.o,  
ylabel('Amplitude') Tp6ysjao  
"7 4L  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) p_(hM&>C  
?^+|V,<
 
axis([0 90 -1.5 1.5]) BPOWo8TqD^  
=gqZ^v&5U  
grid on \%^3Izsc  
q.X-2jjpx:  
subplot(1,2,2); ";.
3+z  
C]XD
Dr  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 5LK>n-  
~5#7i_%@E}  
legend('t_p','t_s','|t_p|','|t_s|') V)Xcn'h  
.lnD]Q  
xlabel('\theta_i') Te13Af~  
d16PY_  
ylabel('Amplitude') Te/)[I'Tn  
%qv7;E2C  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ZqGq%8\.s  
`'QPe42  
axis([0 90 -0.5 3])  t|DYz#]  
=
{oO9.9  
grid on MG@19R2s  
S{H8}m|MW  
Rp=abs(rp).^2; }bTMeCgI  
_8>"&1n  
Rs=abs(rs).^2; h 2zCX  
] ge-b\  
Rn=(Rp+Rs)/2; lb('r"*.  
M@3H]t?  
Tp=1-Rp; U|QDV16f  
5*r6#[S\  
Ts=1-Rs; 1XKk~G"D  
]=3O,\  
Tn=(Tp+Ts)/2; A.FI] K@  
+A3H#'  
figure(2) .,,73"  
U8mu<
)  
subplot(1,2,1); y()( 8L  
V_kE"W)  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) !Z
ZAI_N  
yiq#p"Hs  
legend('R_p','R_s','R_n') .%A2  
Fqv5WoYVf  
xlabel('\theta_i') /~[R u  
>R<fm  
ylabel('Amplitude') K&h6#[^\d  
YovY0nO  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) K/-D 5U  
s$_#T  
axis([0 90 0 1]) G;;~xfE'  
._Xtb,p{  
grid on v2'JL(=  
gib]#n1!p  
subplot(1,2,2); M=A9ax  
[}p.*U_nw  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) V]}b3Y
!(  
bRK9Qt#3  
legend('T_p','T_s','T_n') Izu.I_$4  
~aG-^BAS  
xlabel('\theta_i') O|~'-^  
$EIkk= z  
ylabel('Amplitude') wrU[#g,uvr  

vp@+wh]#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) gOM`I+CwT  
@\?f77Of6  
axis([0 90 0 1]) ,GIqRT4K  
&?6w2[}  
grid on t,,^^ll  
mtHz6+  
~~,<+X:  
)[*O^bPowI  

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 E%\7Uo-  

Thanks