[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 &|55:Y87  
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1、光疏射向光密 YB~}!F [(  
H}X3nl\]  
clear j@Z4(XL  
@R>J\>  
close all \u2p]K>  
p]IF=~b  
n1=1,n2=1.45; vBKBMnSd  
mmEr2\L  
theta=0:0.1:90; vMDV%E S1t  
vJ }^p}  
a=theta*pi/180; X8p-VCkV  
Xb3z<r   
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); G'Jsk4:c  
{_l@ws  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); X>=`{JS1  
<<Ut@243\  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ~[isR|>  

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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); iIA&\'|;i  
^6oz3+  
figure(1) 9:IVSD&"Rf  
WOG=Uy$  
subplot(1,2,1); mKQ!@$*  
ytKh[Uo  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) !A,]  
Z$~Wr3/  
legend('r_p','r_s','|r_p|','|r_s|') -6(C^X%  
pQ!NhzQ  
xlabel('\theta_i') ,QdUfM  
O2-9Oo@#,  
ylabel('Amplitude') v&D^N9hy9  

VE6 V^6SL  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) V*2uW2\}  
a4Fe MCvV9  
axis([0 90 -1 1]) :B6hYx  
db'Jl^  
grid on tQ&.;{5[f  
{+F/lN@  
subplot(1,2,2);
K}L-$B*i  
4%0eX]  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) u`O
xY  
2I* 7?`  
legend('t_p','t_s','|t_p|','|t_s|') esIEi!d  
/ZUKt  
xlabel('\theta_i') L#1YR}m  
]<V[H  
ylabel('Amplitude') K?8{y
 
ryg1o=1v/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) yF8 av=<{  
QX1QYwcmG  
axis([0 90 0 1]) Zui2O-L?V  
N0,wT6.  
grid on [#.E=s+&  
oJA%t-&%R  
Rp=abs(rp).^2; <Wn={1Ts"  
y1GVno  
Rs=abs(rs).^2; FctqE/>}I  
y-w=4_W  
Rn=(Rp+Rs)/2; GsA/
pXx  
$6kVhE!;  
Tp=1-Rp; ^mz&L|h  
WwG78b-OA  
Ts=1-Rs; _~ZNX+4  
/g BB  
Tn=(Tp+Ts)/2; 4|9M8ocR  
ze@NqCF  
figure(2) 61L vT"  
BU(:6  
subplot(1,2,1); $6
e&sDJ  
$hZb<Xz  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) pC2ZN  
EnnT)qos  
legend('R_p','R_s','R_n') qpjtF'  
Vf9PHHH|   
xlabel('\theta_i') {/#^v?,  
y!)  
ylabel('Amplitude') ^x-vOGlR  
&MKG#Y}  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ACm9H9:Vd  
azF|L"-RP  
axis([0 90 0 1]) t{Ck"4Cg  
K<TVp;N  
grid on _H@Y%"ZHJ6  
U
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subplot(1,2,2); 62GP1qH9  
Fr_esx  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) QW
z5iM  
sLrSi  
legend('T_p','T_s','T_n') F9@,T8I  
{\3k(NdEX  
xlabel('\theta_i') nm5zX,  
exT O#*o  
ylabel('Amplitude') G|MjKe4}  
= }0M^F  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) B7BXS*_b  
t>.1,'zb  
axis([0 90 0 1]) Ww-%s9N<  
IA
_>x9 (~  
grid on Ja<pvb  
_yk} [x0>  
U'(}emh}  
XN65bq  
65X31vU  

2、光密射向光疏 %
SORs(4  
{g9?Eio^F^  
clear w}n:_e  
ER,,K._?B  
close all 'A@[a_  
KQ'fp:5|/@  
n1=1.45,n2=1; k<W n  
.s$#: ls?  
theta=0:0.1:90; dv3+x\`9  
$__e7  
a=theta*pi/180; 6ExUNp @U>  
_|%pe]St  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); V# Mw  
VesW7m*z  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); hCRW0 I  
:()(P9?  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); T3 xr Ua&  
/E>z8J$  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); )US|&> o8  
u*_I7.}9  
figure(1) 48,Aq*JFw  
~/?JRL=  
subplot(1,2,1); Ht^MY  
B@!a@0,,_  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) AMqu}G  
tV2SX7N  
legend('r_p','r_s','|r_p|','|r_s|') L'=e /&  
7O5`&Z'-  
xlabel('\theta_i') tm\ <w H  
Dz,Fu:)  
ylabel('Amplitude') E:BEQ:(~L  
!NuYx9L?L  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) w7\:S>;(O"  
v8g3]MVj3  
axis([0 90 -1.5 1.5]) qmUq9bV  
rN#ydw:9  
grid on K]dqK'  
:@g@jcbYq`  
subplot(1,2,2);  iqf+rBL  
8OC5L1  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Re?sopg0r  
,-u | l  
legend('t_p','t_s','|t_p|','|t_s|') 6suB!XF;  
R`=IYnoOA  
xlabel('\theta_i') ;cZ9C 1  
CaNZScnZ  
ylabel('Amplitude') h`&@>uEiq  
:6LOb f\01  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) g-xbb&]  
&B3Eq1A  
axis([0 90 -0.5 3]) ><iEVrpN  
X?$Eb  
grid on }|f\'S  
lD2>`s5  
Rp=abs(rp).^2; q|2{W.P5qi  
AF D/
J  
Rs=abs(rs).^2; ]OY6.m  
ri~dWx  
Rn=(Rp+Rs)/2; xMg&>}5  
aA%$<ItH  
Tp=1-Rp; 9BLz  
4s*P5w_'/  
Ts=1-Rs; ^8)&~q*  
o)n8,k&nm  
Tn=(Tp+Ts)/2; W"Dj+/uS  
~bT0gIc  
figure(2) uR)itm
c?  
3hR7 ./  
subplot(1,2,1); 9<<$uf.B  
[
K13Jy+  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) {d(PH7R  

IgEg  
legend('R_p','R_s','R_n') .^#{rk  
aGp <%d  
xlabel('\theta_i') 8s8q`_.)(  
3f's>+,#%  
ylabel('Amplitude') 3leg,qd  
#f.@XIt'  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) )ACa0V>*p  
v)N6ZOj*C  
axis([0 90 0 1]) pvy;L[c  
M;zRf3S  
grid on -j3 -H&  
3~I<f^K4  
subplot(1,2,2); @babgP,  
~'fa,XZ<  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) k;zbq  
w,8 M  
legend('T_p','T_s','T_n') i40r}?-  
hv*n";V   
xlabel('\theta_i') /G[y 24 Q  
xx;'WL,g  
ylabel('Amplitude') nIph[Vs-Z  
1sc #!^Oo  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7u5B/M!  
j K[VEhs  
axis([0 90 0 1]) e/;Ui  
E\m?0]W
|  
grid on w])~m1yW  
m)_1->K  
UMhM8m!=o  
^0{S!fs  

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 ) jvkwC  

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