[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 i`/+,<  
dw~p?[  
1、光疏射向光密 m|=Ecu  
]Q "p\@\!  
clear y~ G.V,0  
; UiwH  
close all HIGq%m=-x  
bsxTqJ  
n1=1,n2=1.45; 1iL'V-y  
J`IDlGFYp  
theta=0:0.1:90; cH<q:OYi  
58%'UwKn  
a=theta*pi/180; '6$*YN&5  
j` E +qk  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); .0u/|Yx  
"M|P+A  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); obK*rdg,  
*'"T$i
b  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); k{tMzx]F__  
SxyONp.$\  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ,U*)2`[  

[md u!!*  
figure(1) PUQES(&  
!@u>A_  
subplot(1,2,1); PqNFyQkl  
Y\],2[liF  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) + SZYg[  
jNwjK
0?  
legend('r_p','r_s','|r_p|','|r_s|') oIGrA-T}  
EzW)'Zzw~  
xlabel('\theta_i') \JG8KE=j  
~,D@8tv  
ylabel('Amplitude') 1%M&CX  
M >:]lpRK  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9/SXs0  
6#}93Dgv4  
axis([0 90 -1 1]) c8)/:xxl  
O2{)WWOT  
grid on yix'rA-T  
B)$c|dUV  
subplot(1,2,2); I O%6 O  

cN! uV-e  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 3`O?16O  
lX:|iB  
legend('t_p','t_s','|t_p|','|t_s|') >}~#>Ru  
|CgnCUv+  
xlabel('\theta_i') .*=]gZ$IE  
:J}t&t  
ylabel('Amplitude') 2)?(R;$,  
c~
A4gtB=  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 8,?v?uE  
xy+QbDT  
axis([0 90 0 1]) _FbC{yI8;  
PIA)d-
Z  
grid on F Kc;W  
Dz!fpE'L  
Rp=abs(rp).^2; BE&B}LfvfO  
*IlaM'[*  
Rs=abs(rs).^2; uBg 8h{>  
wI
M{pK  
Rn=(Rp+Rs)/2; He0=-AR8  
aI zv  
Tp=1-Rp; ZA~Z1Mro#"  
^IZ)#1U  
Ts=1-Rs; nM=e]qH  
M"q[p  
Tn=(Tp+Ts)/2; f#%JSV"7  
w&Dv8Wv+Oq  
figure(2) Uts"aQ  
I3u{zHVwI  
subplot(1,2,1); t{!  
1rw0sAuGy  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 3[p_!eoW  
+ww^ev%  
legend('R_p','R_s','R_n') #gQ
F'  
|sqZ$Mu  
xlabel('\theta_i') Jsg I'  
~:;3uLs,8  
ylabel('Amplitude') di9!lS$  
.=9s1~]  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >YW\~T  
!=Y;h[J.p  
axis([0 90 0 1]) RnVtZ#SCh  
s*M@%_A?  
grid on si1*Wt<3Bc  
?<X(]I.j  
subplot(1,2,2); |ifHSc.j<  
`U!y
&Q$,  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) P#kGX(G9!  
BO
lAm*tFt  
legend('T_p','T_s','T_n') @mw "W{  
(J$\-a7<f  
xlabel('\theta_i') /rB{[zk  
qg z*'_S  
ylabel('Amplitude') OQ/<-+<
w  
Pvo#pY^dXX  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ?9j{V7h  
[c K^+s)N  
axis([0 90 0 1]) VBoMT:#  
# jYpVc{]  
grid on 6,Hqb<(  
hVoNw6fE  
fT:}Lj\L1  
O/AE}]  
BJjx|VA+  

2、光密射向光疏 $Ptk|qFe  
E+_&HG}a  
clear =y ]Jl,_.  
q?{}3 dPC  
close all %(m])  
JXQPT  
n1=1.45,n2=1; )-P!Ae_.v  
Bl.u=I:Y4  
theta=0:0.1:90; U)jUq_LX  
M.%shrJ/  
a=theta*pi/180; >mu)/kl  
_"f :`  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2));  <dR,'
 
R|,7d:k  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); $`Nd?\$  
=Z0t :{  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); /"AvOh*  
#Fd W/y5  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ^tAO_~4  
"X1vZwK8N  
figure(1) 60B-ay0e$b  
mMw;0/n  
subplot(1,2,1); 97~K!'/^+y  
:xeLt;  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) <bmLy_":  
T{MC-j _T9  
legend('r_p','r_s','|r_p|','|r_s|') Ueyw;Y  
=V$j6  
xlabel('\theta_i') <&#+E%E4  
d+2daKi  
ylabel('Amplitude') `7Ug/R<  
Agy <j   
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) is#8R:7.:  

xxX/y2\  
axis([0 90 -1.5 1.5]) x'`"iZO.t  
us{nyil1  
grid on TQ9'76INb  
3;/?q  
subplot(1,2,2); w+UV"\!G)Q  
)s")y  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 7 ^I:=qc72  
E&2tBrAq  
legend('t_p','t_s','|t_p|','|t_s|') vZjZb(jlN  
9U<Hf32  
xlabel('\theta_i') V/y=6wUiSl  
D1"7s,Hmu  
ylabel('Amplitude') 4,}GyVJFb`  
"EPD2,%S  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) "DckwtG:%  
y4F^|kS) [  
axis([0 90 -0.5 3]) j7/(sf  
TbNGgjT  
grid on 'h*Zc}Q:  
$Ub}p[L  
Rp=abs(rp).^2; !IAKVQ  
sbla`6Fb  
Rs=abs(rs).^2; 31XU7
A  
*8\(FVyG^  
Rn=(Rp+Rs)/2; LM1b
I4  
j[DIz@^  
Tp=1-Rp; Nlt4)  
FMS2.E  
Ts=1-Rs; &BgU:R,  
h~ha  
Tn=(Tp+Ts)/2; /yYlu  
8~5|KO >F  
figure(2) u%opY<h  
|~NeB"l{  
subplot(1,2,1); yX9B97XyC  
yiT{+;g^  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) {wu!6\:<??  
wItzcY1m  
legend('R_p','R_s','R_n') hEOJb @:R  
k,]{NO   
xlabel('\theta_i') v*DFiCQD  
NgxO&Zp  
ylabel('Amplitude') M[,^KJ!  
*|'}v[{v^9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +"=~o5k3Q  
s1=u{ET  
axis([0 90 0 1]) LXxl?D  
}#YQg0(  
grid on r,nn~  
2{};6{yz  
subplot(1,2,2); G
TFl}t  
0*{p Oe/u  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ~~dfpW_"  
bX{PSjD  
legend('T_p','T_s','T_n') &ps6s.K  
oZvG3_H4.  
xlabel('\theta_i') YPQCOG  
s=jO;K$  
ylabel('Amplitude') m?vAyi
  
Prt#L8  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 2$Y3[$  
H2]BMkum  
axis([0 90 0 1]) D4\(:kF\Hg  
CU !.!cZ
{  
grid on +2(PcJR~  
| VRq$^g  
;S=e%:zb  
Y;PDZbK3  

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 fS'k;r*r  

Thanks