[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 n E}<e:  
-5v.1y=!L  
1、光疏射向光密 <-:@} |br  
#S%Y;ilq  
clear `uZv9I"  
p <=%  
close all _G[I2]  
KzX ,n_`an  
n1=1,n2=1.45; C!{AnWf  
~po%GoH(K  
theta=0:0.1:90; xY'qm8V  
G7Abhb,  
a=theta*pi/180; nH>V Da  
tNuCxb-  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); !x$:8R  
cYM~IA  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 9jR[:[  
aZj
ef  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); k5t^s  
04guud }  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); XyM(@6,'  
BU:Ecchbr  
figure(1) Wx?&igh  
rW~?0  
subplot(1,2,1); c Z6p^  
Sm$j:xw<  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 3P#+) F~  
0L0Jc,(F+  
legend('r_p','r_s','|r_p|','|r_s|') dxn0HXU  
r*N~. tFo  
xlabel('\theta_i') =Esbeb7P  
PM-PP8h  
ylabel('Amplitude') XK%W^a*x
 
";_K x={  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) K)Zkj"y  
&cu] vw  
axis([0 90 -1 1]) 7^I$%o1g  
UOu
6LD/|h  
grid on &*aer5?`  
D#d8^U  
subplot(1,2,2); nEd M_JPv  
P#[IUXtT  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) VZ2.w4b  
+2EHmu
J;  
legend('t_p','t_s','|t_p|','|t_s|') 'je8k7`VA  
?..i4  
xlabel('\theta_i') eA1k)gjE  
(L y%{ Y  
ylabel('Amplitude') jy!f{dsC  
cB
ab2/
 
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) L{2
b0Zh'  
c>S"`r  
axis([0 90 0 1]) Kd/[Bs%  
Sf'i{xye  
grid on (F,(]71Z+  
m|[\F#+C  
Rp=abs(rp).^2; }%!FMXe  
h-r6PY=i  
Rs=abs(rs).^2;  Iys6R?~  
M)"]$TM  
Rn=(Rp+Rs)/2; AZxrJ2G  
3`&VRF8  
Tp=1-Rp; ^91sl5c8yD  
TRgY:R_  
Ts=1-Rs; J4gI=@e  
G-\<5]k]  
Tn=(Tp+Ts)/2; 'bB>$E  
YKP=0 j3,  
figure(2) S}.\v<  
tLS<0  
subplot(1,2,1); {A]k%74-a  
M5']sdR(l  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) e1%rVQ(v  
;JOD!|  
legend('R_p','R_s','R_n') ZR/R'prW  
7o;x
(9  
xlabel('\theta_i') |`w$|pm=  
x*unye7  
ylabel('Amplitude') V.;:u#{@-Q  
/:#j?c  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _Fy4DVCg  
EkRdpiLB  
axis([0 90 0 1]) #"Fg%36Zd  
Hs[}l_gYn  
grid on [#7y[<.P  
i^je.,Bi  
subplot(1,2,2); [urH a  
3AvVU]@&Z@  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) L3B8IDq  
d@-wi%,^  
legend('T_p','T_s','T_n') +jp|Y?6Z  
X,>(Y8  
xlabel('\theta_i') uDILjOT  


"w*@R8v  
ylabel('Amplitude')  LsQs:O  

7}<Sg  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) G3H#XK D  
M} O[`Fx{W  
axis([0 90 0 1]) 'To<T  
(-bRj#  
grid on iH[E= 6*  
d2ohW|  
dO+kPC  
NtHbwU,  
xC)7eQn/R  

2、光密射向光疏 Mz93  
YQ52~M0L  
clear R3$@N  
_~PO  
close all )eECOfmnZ  
[4Y[?)7  
n1=1.45,n2=1; NNgK:YibD  
}bp.OV-+  
theta=0:0.1:90; <p09oZ{6  
3Mw}R6g@#  
a=theta*pi/180; (JWv *p  
7iP5T  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); FK6K6wU52m  
E$w#+.QP  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ):S!Nl  
2@fa rx:  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); A$Wx#r7)  
E&'#=K[  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 4X*Q6rW  
^L ]B5,}-  
figure(1) ANotUty;y  
YN/u9[=`  
subplot(1,2,1); 0:. 6rp  
<iRWd  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 9T$u+GX'  
Gh'X.?3   
legend('r_p','r_s','|r_p|','|r_s|') rfX=*mjt  
Y3<b~!f  
xlabel('\theta_i') \p3v#0R{  
l/M[am  
ylabel('Amplitude') y[7C% Wj  
&;s<dDQK  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) y=#j`MH{>  
$.9 +{mz  
axis([0 90 -1.5 1.5]) \KCWYi]  
1#]B^D  
grid on w]F!2b!  
'=p?  
subplot(1,2,2); %{U"EZ]D!  
-8/JP  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) C;ptir1G;  
|WBZN1W)  
legend('t_p','t_s','|t_p|','|t_s|') >%l:Dw\A:
 
{<!hlB  
xlabel('\theta_i') nn'Af,ko/  
/~tP7<7A  
ylabel('Amplitude') ^;4YZwW5w  
ncj!KyU  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) K_Re}\D  
:mP9^Do2;  
axis([0 90 -0.5 3]) _CL
{IY  
me:iQ.g
 
grid on V,vc_d?,_o  
4dD2{M  
Rp=abs(rp).^2; &y\igX1  
>e/ r2U  
Rs=abs(rs).^2; KJX>DL 9\  
K'V 2FTJI  
Rn=(Rp+Rs)/2; 9*DEv0}a^  
G1/Gq.<  
Tp=1-Rp; ,WGc7NN`  
bJPJ.+G7  
Ts=1-Rs; T6X}Ws"  
+<{m45  
Tn=(Tp+Ts)/2; TA|s@T{  
ki#bPgT  
figure(2) (2tH"I  
h\FwgkJP  
subplot(1,2,1); /=@e &e  
MOeoU1Hn  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2)
(-J<Vy]  
GL`tOD:P"  
legend('R_p','R_s','R_n') gs>A=A(VYf  
C5MqwNX  
xlabel('\theta_i') #QS?s8IrW  
MnS+nH!d  
ylabel('Amplitude') xh r[A  
FB_NkXR  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \OY}GR
Kt  
9DPb|+O-  
axis([0 90 0 1]) TL'0T,Jo  
QXY}STs  
grid on @k9Pz<ub  
G AEZY

 
subplot(1,2,2); o} {-j  
#D0 ~{H  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) UKj`_a6  
0qR$J  
legend('T_p','T_s','T_n') EZ{\D!_Y  
#a'r_K=ch)  
xlabel('\theta_i') JnHNkCaU  
`S$sQ&  
ylabel('Amplitude') abSq2*5K  
$ 9=8@  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5k~\or 5_  
#Cx%OIi[f  
axis([0 90 0 1]) +A\V)  
}lO }x  
grid on ZB0+GG\  
b5S7{"<V  
y!5:dvt  
_D JCsK|  

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 xR _DY'z  

Thanks