[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 6tF_u D  
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1、光疏射向光密 $*hqF1Q  
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clear 8(ej]9RObU  
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close all ~kFL[Asnaf  
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n1=1,n2=1.45; ]+A%37  
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theta=0:0.1:90; 3>QkO.b  
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a=theta*pi/180; cB=ExD.Q  
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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)); ?/|KM8  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); qV79bK  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); YJu~iQ`i  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Yhte&,D"  
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figure(1) =~_
  
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subplot(1,2,1); E

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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) s>*xAIx  
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legend('r_p','r_s','|r_p|','|r_s|') 4i7+'F  
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xlabel('\theta_i') T.}Y&,n$$5  
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ylabel('Amplitude') ,49Z/P  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /mXxj93UA  
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axis([0 90 -1 1]) >#VNA^+t  
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grid on 7-gT:  
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subplot(1,2,2); rCUGaf~  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) $[UUf}7L   
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legend('t_p','t_s','|t_p|','|t_s|') }OY/0p-Z  
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xlabel('\theta_i')
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ylabel('Amplitude') _n1[(I  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _b$ yohQ  
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axis([0 90 0 1]) =f!clhO  
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grid on F1A40h7R$Y  
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Rp=abs(rp).^2; XO+rg&Pu
 
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Rs=abs(rs).^2; 7[PEiAI  
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Rn=(Rp+Rs)/2; 0` .5gxm  
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Tp=1-Rp; AmC?qoEWQ7  
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Ts=1-Rs; c]zFZJ6M  
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Tn=(Tp+Ts)/2; C~R ?iZ.&U  
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figure(2) w@<II-9L)<  
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subplot(1,2,1); Ptf(p`  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) $xWUzg1<U  
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legend('R_p','R_s','R_n') \5 rJ  
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xlabel('\theta_i') d$jwh(Ivs  
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ylabel('Amplitude') 0EF~Ouef  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 8xg^="OJ  
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axis([0 90 0 1]) ypyKRsx  
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grid on P:t .Nr"  
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subplot(1,2,2); 3ye  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ddyX+.LMk  
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legend('T_p','T_s','T_n') 5|nc^ 12  
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xlabel('\theta_i') Z Cjw)To(  
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ylabel('Amplitude') t`&x.o  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) wV"`Du7E;  
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axis([0 90 0 1]) fj))Hnt(|  
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grid on kQ}n~Hn  
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2、光密射向光疏 4 "HX1qP  
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clear Ki2!sADd  
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close all %,kP_[!>Q  
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n1=1.45,n2=1; Jpj=d@Of70  
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theta=0:0.1:90; fI613ww]  
pn gto  
a=theta*pi/180; /Hyz]46  
Sw\*$g]  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ViPC Yt`of  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 8AuBs;i  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ?)xIn)#ls  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); QO/0VB42  
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figure(1) _\}'5nmw\  
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subplot(1,2,1); Xv8-<Ks  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) _\ToA9m  
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legend('r_p','r_s','|r_p|','|r_s|') 3/kT'r  
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xlabel('\theta_i') /SD}`GxH  
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ylabel('Amplitude') G<;~nAo?f0  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $;qi-K3j  
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axis([0 90 -1.5 1.5]) }02`ve*   
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grid on 7A)\:k  
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subplot(1,2,2); nT6y6F_e  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 21uK&nVf^l  
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legend('t_p','t_s','|t_p|','|t_s|') 8M,*w6P  
rs&]4
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xlabel('\theta_i') >lQo _p(;  
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ylabel('Amplitude') tIsWPt]Y  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) :Ha/^cC/3  
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axis([0 90 -0.5 3]) Ms{";qi
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grid on Td=4V,BN  
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Rp=abs(rp).^2; `g)}jo`W  
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Rs=abs(rs).^2; QU"WpkO  
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Rn=(Rp+Rs)/2; ;H_/o+  
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Tp=1-Rp; 4T@:_G2b  
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Ts=1-Rs; 4CNrIF@  
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Tn=(Tp+Ts)/2; DXFu9RE\{  
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figure(2) DBT4 W/  
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subplot(1,2,1); 1K72}Gj)ZL  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) g9_zkGc7  
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legend('R_p','R_s','R_n') 1|bXIY.J*  
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xlabel('\theta_i') = tv70d'  
i]JTKL{\q  
ylabel('Amplitude') m5\T,  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) jh5QIZf=  
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axis([0 90 0 1]) ]%\,.&=hT  
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grid on ,
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subplot(1,2,2); aO6\e>  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) %pC<T*f  
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legend('T_p','T_s','T_n') _:x]'w%  
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xlabel('\theta_i') 48^-]};  
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ylabel('Amplitude') -t`kb*O3`  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) mw@Pl\=  
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axis([0 90 0 1]) ]?9*Vr:P^  
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grid on /x VHd  
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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

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学习学习 &5}YTKe}|  

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