[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#K`gg'  
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1、光疏射向光密 :xBG~D  
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clear 
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close all 1DTA Dh0  
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n1=1,n2=1.45; TwaK>t96[  
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theta=0:0.1:90; %XQ!>BeE  
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a=theta*pi/180; D)_67w|u|  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); NI%&Xhn!*>  
4g%BCGsys  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); #Bih=A #  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); rsGQ :c  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); `"-ln'nw  
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figure(1) xh90
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subplot(1,2,1); v
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) C||9u}Q<  
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legend('r_p','r_s','|r_p|','|r_s|') qb[UA5S\`  
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xlabel('\theta_i') 01_*^iCf5  
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ylabel('Amplitude') ;/79tlwq  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5.TeH@(  
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axis([0 90 -1 1]) }}Kjb  
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grid on ) u(Gf*t  
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subplot(1,2,2); !,0%ZG}]7  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) vUNmN2pRJ  
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legend('t_p','t_s','|t_p|','|t_s|') iL6Yk @  
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xlabel('\theta_i') 2x<A7l)6  
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ylabel('Amplitude')  <j<V{Wc  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~M!9E])  
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axis([0 90 0 1]) $.0l%
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grid on 4]P5k6nV  
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Rp=abs(rp).^2; 'Y;M
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Rs=abs(rs).^2; >69-[#P!  
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Rn=(Rp+Rs)/2; Xk]:]pl4W  
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Tp=1-Rp; yOdh?:Imv  
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Ts=1-Rs; P =jRof$  
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Tn=(Tp+Ts)/2; <{Pr(U*7}  
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figure(2) D_D76  
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subplot(1,2,1); Gdu5 &]H#6  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) $E,,::oJ  
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legend('R_p','R_s','R_n') DKnlbl1^?  
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xlabel('\theta_i') OciPd/6  
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ylabel('Amplitude') n8RE  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) iU1yJ=  
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axis([0 90 0 1]) \ y}!yr
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grid on 7E]qP 5  
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subplot(1,2,2); 
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 41XS/# M$*  
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legend('T_p','T_s','T_n') AL{r/h  
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xlabel('\theta_i') d#vo)
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ylabel('Amplitude') <oKoz0!  

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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ODFCA. t  
sgfci{~  
axis([0 90 0 1]) 4 >`2vb  
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grid on Vm]xV_FOd  
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2、光密射向光疏 e$l*s/"0t  
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clear VXP@)\!  
MJugno  
close all WvN{f*  
zXZXp~7)  
n1=1.45,n2=1; 
pZ)N,O3  
OSY.$$IO  
theta=0:0.1:90; ?8-ho0f0  
H#:Aby-d}  
a=theta*pi/180; i TLX=.M  
PdqyNn=  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 'B9q&k%<  
}'WEqNuE  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); {JlSfJw!  
N!%[.3o\K  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Csf!I@}Z  
{v,NNKQ4x  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); SQ la]%  
T8NDS7&?  
figure(1) %Xe 74C"  
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subplot(1,2,1); FjV)QP H  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) sH51 .JG  
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legend('r_p','r_s','|r_p|','|r_s|') Y6RbRcJw  
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xlabel('\theta_i') ,B1~6y\b  
&cZl2ynPi  
ylabel('Amplitude') T!X`"rI  
2?nEHIUT  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) })umg8s  
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axis([0 90 -1.5 1.5]) @
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grid on L>&9+<-B  
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subplot(1,2,2); #<DS-^W!  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) !W/"Z!k  
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legend('t_p','t_s','|t_p|','|t_s|') _)ZxD--Qg  
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xlabel('\theta_i') I~Q G  
2= zw!  
ylabel('Amplitude') %[x
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) W!V-m  
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axis([0 90 -0.5 3]) |3G;Rh9w,  
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grid on n;LjKE  
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Rp=abs(rp).^2; j8W<iy  
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Rs=abs(rs).^2; +!mEP>  
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Rn=(Rp+Rs)/2; D"CU J?  
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Tp=1-Rp; 5'/ff=  
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Ts=1-Rs; hv*XuT/  
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Tn=(Tp+Ts)/2; `_SV1|=="8  
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figure(2) Ey)ey-'\  
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subplot(1,2,1); 3F32 /_`  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) PR7B Cxm  
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legend('R_p','R_s','R_n') KNjU!Z/4  
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xlabel('\theta_i') 3)y=}jw  
N@X(YlO  
ylabel('Amplitude') ]CDUHz  
B.:1fT7lI  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) h@dy}Id  
JCci*F#r  
axis([0 90 0 1]) G5ShheZd  
EHK+qrym  
grid on W;?e@}  
v.hQ9#:  
subplot(1,2,2); >[l2KD  
(4|R}jv  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Ygc|9}  
S]NT+XM  
legend('T_p','T_s','T_n') DFvGc`O4  
dDa&:L  
xlabel('\theta_i') V''fmWo7  
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ylabel('Amplitude') 'Y/kF1,*  
b!r%4Ah  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) q:=jv6T#  
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axis([0 90 0 1]) w c  
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grid on ]D4lZK>H  
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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 q~[sKAh  

Thanks