[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-*F[~  
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1、光疏射向光密 '-KrneZ!  
x#TWZ;  
clear U?yKwH^{  
"(^1Dm$(  
close all \I~9%QJ>  
M{M?#Q  
n1=1,n2=1.45; 6l?\iE  
w\Bx=a>vc  
theta=0:0.1:90; ,?>:Cdz4  
*Q:EICDE7  
a=theta*pi/180; m/>z}d05h  
2F fwct:  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); gj<Y+Dv>  
7Jvb6V<R  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); pk2}]jx"  
9lCZi?  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 1F58 2 l  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Q.`O;D}x  
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figure(1) @qWes@  
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subplot(1,2,1); F!qt#Sw!
\  
Ex3V[v+D(  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ziBg'  
~pj/_@S@x  
legend('r_p','r_s','|r_p|','|r_s|') f3Cj
j]RFv  
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xlabel('\theta_i') 9t^Q_[hG  
Q)b*; @  
ylabel('Amplitude') +x"cWOg  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #.z`clK#  
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axis([0 90 -1 1]) l~9P4 ,  
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grid on {=GWQn6cc  
W2\Q-4D  
subplot(1,2,2); ><Z`)}
f  
G~;hD-D~.  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) WSPlM"h  
GMO|A.bzzN  
legend('t_p','t_s','|t_p|','|t_s|') ]Y@ia]x&P  
X#!oG)or  
xlabel('\theta_i') 3d0Yq  
L_WVTz?`  
ylabel('Amplitude') ntT~_Ba8;u  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) y8.(filNB  
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axis([0 90 0 1]) |p1pa4%}  
KoPhPH  
grid on q:D!@+U  
z|gG%fM  
Rp=abs(rp).^2; ?m$7)@p  
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Rs=abs(rs).^2; /6%<97/d  
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Rn=(Rp+Rs)/2; uBe1{Z  
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Tp=1-Rp; ? <.U,  
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Ts=1-Rs; "?~u*5  
 FGP~^Dr/  
Tn=(Tp+Ts)/2; E'g2<k  
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figure(2)  #' =rv  
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subplot(1,2,1); )!!xvyc  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) #!%\97ZR  
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legend('R_p','R_s','R_n') |H)WJ/`  
P|S'MS';:  
xlabel('\theta_i') x>@+lV'O  
v<`1z?dch  
ylabel('Amplitude')  /_rg*y*  
esM<.  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) jaj."v  
7Lr}Y/1=  
axis([0 90 0 1]) I oz rZ  
o9:GKc  
grid on A~!3svJW  
k-(hJ}N  
subplot(1,2,2); %DQ.f*%  
GMZj@q  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Qhd
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o.}?K>5  
legend('T_p','T_s','T_n') ZR3x;$I~4  
Xjal6e)[  
xlabel('\theta_i') o6$Q>g`]  
TT429  
ylabel('Amplitude') LW;UL}av  
hwmpiyu  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5O9Oi:-!c  
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axis([0 90 0 1]) eTc0u;{V  
r"a4;&mf  
grid on x0])&':!  
>Hr0ScmN@"  
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2、光密射向光疏 V#W(c_g
 
r4O*0Q_  
clear l_LfVON  
#jV6w=I  
close all m=2TzLVv  
r+HJ_R,5A  
n1=1.45,n2=1; J#CF SG
  
8zz-jkR  
theta=0:0.1:90; d}b#"A  
Dj>.)n  
a=theta*pi/180; xH\'gli/  
;w?zmj<Dm  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); hHoc7  
&hs)}uM&$  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Z{RgpVt  
G7C9FV bR  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); bTKzwNx  
xYM!mcA  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); mxjY-Kq  
n$}c+1   
figure(1) E/_=0t  
SsafRK$  
subplot(1,2,1); lN1T\  
z@&_3 Gl  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) }mz4 3Sq<  
dOqwF iO  
legend('r_p','r_s','|r_p|','|r_s|') 1O9V Ej5  
a+*|P  
xlabel('\theta_i') |U$oS2U\m  
T:wd3^.CG  
ylabel('Amplitude') ? Z8_(e0U  
=bf-+gZD  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) sJ?Fque  
vK#xA+W  
axis([0 90 -1.5 1.5]) HI']{2p2}t  
 7P]_03  
grid on n?aogdK$V  

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subplot(1,2,2); X>F/0/  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 61T"K  
Lc*i[J<s  
legend('t_p','t_s','|t_p|','|t_s|') 4jis\W}%L3  
^fS~va  
xlabel('\theta_i') MsX`TOyO!  

]=q?=%H  
ylabel('Amplitude') sh}=#eb  
F:IG3 @  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) V'^s5  
6E@r9U  
axis([0 90 -0.5 3]) |;{wy  
sEe^:aSN  
grid on 33[2$FBf  
;% !'K~  
Rp=abs(rp).^2; 49_b)K.tB  
O>|Q Zd  
Rs=abs(rs).^2; Aq QArSu,  
K!HSQ,AC  
Rn=(Rp+Rs)/2; gGe `w  
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Tp=1-Rp; N\HOo-X  
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Ts=1-Rs; |53Zg"!  
Jan73AOX  
Tn=(Tp+Ts)/2; |CY
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"^$3&)  
figure(2) <d$|~qS_  
%{&yXi:mS  
subplot(1,2,1); 9dJARSUuF  
z930Wi{@  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) @\z2FJ79w  
d1``}naNw  
legend('R_p','R_s','R_n') 0z_e3H{P27  
5RI"gf  
xlabel('\theta_i') VoWlBH  
^0ipM/Lg  
ylabel('Amplitude') vkASp&a  
=+'4u  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) t_x\&+W  
4mQ:i7~  
axis([0 90 0 1]) g"hm"m}i  
<i%.bfQ/-  
grid on +VI2i~  
\;.\g6zX  
subplot(1,2,2); B;2os^*  
!d&K,k  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) o.keM4OQ  
UOy`N~\gh+  
legend('T_p','T_s','T_n') x=5k74  
kDS4 t?Ig  
xlabel('\theta_i') 3!,XR\`[  
AWi~qzTZ  
ylabel('Amplitude') 9`$fU)K[Pl  
op/HZa  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :hwZz2Dhi  
4!XB?-.  
axis([0 90 0 1]) 7Xw;TA  
iLws;3UX;x  
grid on o(u&n3Q'  
4T{+R{_Y1  
[C,<Q  
C~yfuPr\B  

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

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谢谢了楼主分享

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