[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 `W S  
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1、光疏射向光密 ts$UC $  
/YR$#&N2  
clear d0,F'?.0|  
dPX>A4wp  
close all `Pbn  
>p:fWQ6  
n1=1,n2=1.45; 2p[3Ap  
|mA*[?ye@  
theta=0:0.1:90; yln.E vJjD  
|{"7/~*[  
a=theta*pi/180; B1.@K}  
Lj,%pzJ  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); T ua @w+  
l!'iLq"K(  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); K.zs;^  
}H.vH  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ((q(Q9(F  
:]jtV~E\  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2));  {`  
t9{EO#o'k  
figure(1) ajr8tp'  
x{5*%}lX8  
subplot(1,2,1); wUndNE   
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)*)  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) z<*]h^!3  
/Qy0vAvJ  
legend('r_p','r_s','|r_p|','|r_s|') HPB1d!^  
#1k,t  
xlabel('\theta_i') h^,a 1'  
#YdU,y=B  
ylabel('Amplitude') | w -W=v  
OwUbm0)h^V  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =G6@:h=  
nX'.'3  
axis([0 90 -1 1]) !y.7"G*  
_aYQ(FO  
grid on y 6<tV.  
;<H2N0qJ(  
subplot(1,2,2); KG@hjO  
(""&$BJQ|  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) eH6cBX#P.  
RqR X  
legend('t_p','t_s','|t_p|','|t_s|') +>j_[O5Y  
vD t?N9  
xlabel('\theta_i') g^FH[(P[G  
?=&*6H_v  
ylabel('Amplitude') )&K%Me  
g>f394j  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r9[J3t*({~  
{rQ`#?J}^?  
axis([0 90 0 1]) x`&W[AA4  
5B6:pH6e  
grid on `N+ P,  
Vv]mME@  
Rp=abs(rp).^2; |n;7fqK  
A:(uK>5{Kk  
Rs=abs(rs).^2; d
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Rn=(Rp+Rs)/2; NT'Yh  
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Tp=1-Rp; Tec6] :  
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Ts=1-Rs; NG ~sE&,7  
KC'{>rt7  
Tn=(Tp+Ts)/2; va\cE*,@ns  
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figure(2) dL>ZL1.$  
A7se#"w  
subplot(1,2,1); %|Vq"MW,I  
XQ>m8K?\d  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) n7vi@^lf(  
uP:'e8  
legend('R_p','R_s','R_n') gueCP+a_  
pB`<4+"9  
xlabel('\theta_i') Flsf5 Tr0  
ZC"p^~U_e[  
ylabel('Amplitude') H`sV\'`!}  
qmhHHFjQ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \TjsXy=:)  
"Z <1Msz  
axis([0 90 0 1]) 3~ylBJJ  
hz!.|U@,{<  
grid on 0t8-oui  
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subplot(1,2,2); *=rl<?tX  
{>#Ya;E  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) -4.+
&'  
+m_quQ/ys  
legend('T_p','T_s','T_n') K\#+;\V  
cOSUe_S0w[  
xlabel('\theta_i') "bqB@)  
F{v+z8nW  
ylabel('Amplitude') lq7
4Fz&(  
o}BaZ|iZ2  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) WE\V<MGS/  
+NQw^!0qy  
axis([0 90 0 1]) t2>Vj>U  
'Q# KjY
 
grid on wml`3$"cf  
5=eGiF;0\  
r!+
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|2Q;SaI^\  
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2、光密射向光疏 )!'SSVaRs  
;L|%H/SH  
clear (V*ggii@  
tR1 kn&w  
close all :W
E(1!P@  
!RV}dhI  
n1=1.45,n2=1; 1Nv_;p.{  
: -OHD#>%  
theta=0:0.1:90; 0EOpK%{  
ZhW>H  
a=theta*pi/180; _&P![o
)x  
3eD#[jkAI;  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); %c):^;6p  
U)2\=%8  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2));
/_v@YB!
0  
@wbV@  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); u9J;OsnHK  
+c?1\{
M   
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ~!\n
 
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figure(1) to2dkU  
.M!HVq47m  
subplot(1,2,1); 4Y[tx]<  
J=ZNx;{6  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) j*xxOwf  
Z8Qmj5'[  
legend('r_p','r_s','|r_p|','|r_s|') Zj%l (OVq  
zmF_-Q`c  
xlabel('\theta_i') !>TH#sU$  
Gz@'W%6yaV  
ylabel('Amplitude') "9aiin  
'Tj9btM*cL  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4 @ )|N'  
(bY#!16C:  
axis([0 90 -1.5 1.5]) I8rtta  
wS9EC}s:Q  
grid on $ba3dqbCW  
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subplot(1,2,2); %Sf%XNtu  
A46Xei:Ow  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) jw]~g+x#$  
?*){%eE  
legend('t_p','t_s','|t_p|','|t_s|') =y.?=`"  
sz9C':`W  
xlabel('\theta_i') ,SNN[a  
#**vIwX-Q  
ylabel('Amplitude') 8K=sx@l  
9q(*'rAm  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) eX;C.[&7;8  
bVaydJ*  
axis([0 90 -0.5 3]) ;rC)*=4#  
[9Q}e;T  
grid on Wz',>&a  
>,wm-4&E  
Rp=abs(rp).^2; n$&xVaF|  
[oqb@J2  
Rs=abs(rs).^2; !Nua  
)%FRBO]  
Rn=(Rp+Rs)/2;
6qp2C]9=  
?B7n,!&~  
Tp=1-Rp; kwF4I)6  
mWN9/+!  
Ts=1-Rs; ,e<(8@BBL  
;w--fqxVl  
Tn=(Tp+Ts)/2; ancs  
*c9/ I  
figure(2) Kw_> X&GcJ  
 _8]h
n[  
subplot(1,2,1); ='"DUQH|*  
QU{|S.\  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 99)md  
ay4E\=k  
legend('R_p','R_s','R_n') "-bsWC  
y(!J8(yA  
xlabel('\theta_i') :.u[^_   
anxZ|DE  
ylabel('Amplitude') t|XQFb@}  
pH!e<m  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) jr,j1K@_t  
*>"k/XUn$  
axis([0 90 0 1]) BUhLAO  
<?h
`  
grid on `q":i>FP2  
JzI/kH~  
subplot(1,2,2); y{{7)G  
Ed
gcdSb7  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) <~D-ew^BU  
CI%4!K;{  
legend('T_p','T_s','T_n') *|97 g*G(  
~m@v ~=  
xlabel('\theta_i') +eT1/x0  
[(Jj@HlP6T  
ylabel('Amplitude') G3r9@2OC  
=XbOY[  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) VEUdw(-?s  
1"7Rs}l7  
axis([0 90 0 1]) B}Lz#'5_  
#*r u*  
grid on c^Y&4=>T  
g3*" ^C2=  
%#g9d  
E}&Z=+v}  

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

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学习学习 P#
_8$#G3  

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