[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 G2`YZ\  
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1、光疏射向光密 `}Y)l:G*g  
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clear x}2nn)fdZ  
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close all SGKAx<U  
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n1=1,n2=1.45; D5"5`w=C  
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theta=0:0.1:90; &A s>Y,y  
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a=theta*pi/180; E$%v);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)); th{J;a  
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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)); 1ZFKLI`V  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $z!G%PO1%  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ]v<8l4p;  
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figure(1)  ]j0+4w  
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subplot(1,2,1); C-edQWbcP  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 10Eun }  
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legend('r_p','r_s','|r_p|','|r_s|') +xuv+mo  
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xlabel('\theta_i') j+3\I>  
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ylabel('Amplitude') X!h>13fW  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]Q FI>  
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axis([0 90 -1 1]) |}{gE=]  
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grid on gI7*zR4D  
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subplot(1,2,2); W$]qo|2P  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ksq4t  
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legend('t_p','t_s','|t_p|','|t_s|') 5_yw  
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xlabel('\theta_i') 6!i`\>I]  
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ylabel('Amplitude') 'LoWp} f9  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) f5//?ek  
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axis([0 90 0 1]) KxErWP%  
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grid on wMk
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Rp=abs(rp).^2; =WUNBav  
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Rs=abs(rs).^2; @V>]95R
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Rn=(Rp+Rs)/2; }bihlyB&Q  
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Tp=1-Rp; J#:`'eEG  
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Ts=1-Rs; WS6Qp`c)e  
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Tn=(Tp+Ts)/2; KHP/Y{mH  
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figure(2) LV ]10v6  
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subplot(1,2,1); kJ%a;p`O  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) gs+nJ+b  
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legend('R_p','R_s','R_n') S['rTuk  
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xlabel('\theta_i') 7%$3`4i`O  
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ylabel('Amplitude') uo?R;fX26  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) zA?AX1%Wa  
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axis([0 90 0 1]) Mi NEf  
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grid on \0Xq&CG=E  
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subplot(1,2,2);
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ;TC]<N.YJT  
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legend('T_p','T_s','T_n') CXGMc)#>f  
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xlabel('\theta_i') @/N]_2@8;  
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ylabel('Amplitude') n4B uM R  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) fg,vTpBk  
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axis([0 90 0 1]) ^N^s|c'  
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grid on @:Ft+*2  
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2、光密射向光疏 x1Z'_Qw  
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clear '"c`[L7Wn  
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close all MOytxl:R  
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n1=1.45,n2=1; \|B\7a'4  
NYKYj`K  
theta=0:0.1:90; pVzr]WFx  
4$mtc*tzT  
a=theta*pi/180; !?J-Y  
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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)); A@Zqh<,Ud  

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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)); Nw"?~"bo  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ?|Z~mE  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); {,(iL8,^  
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figure(1) ]Nssn\X7  
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subplot(1,2,1); k}qCkm27  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Brd9"M|d  
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legend('r_p','r_s','|r_p|','|r_s|') 'R-g:X\{  
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xlabel('\theta_i') 6kAGOjO  
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ylabel('Amplitude') r=7!S8'  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) W1LR ,:$  
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axis([0 90 -1.5 1.5]) 
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grid on Ejf5M\o  
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subplot(1,2,2); 19[!9ci  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 8X278^ #  
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legend('t_p','t_s','|t_p|','|t_s|') zMO#CZ t  
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xlabel('\theta_i') ?1O` Rd{tn  
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ylabel('Amplitude') ^ uwth  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) %.'oY%  
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axis([0 90 -0.5 3]) ?<\2}1  
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grid on E'6/@xM  
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Rp=abs(rp).^2; bR:hu}YS  
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Rs=abs(rs).^2; p=kt+H&;  
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Rn=(Rp+Rs)/2; 5DkEJk7a  
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Tp=1-Rp; voTP,R[}85  
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Ts=1-Rs; |b^UPrz)VS  
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Tn=(Tp+Ts)/2; 4}UJBb?  
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figure(2) {^:NII]  
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subplot(1,2,1); c6h+8QS  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) c^puz2  
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legend('R_p','R_s','R_n') ~Je4
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xlabel('\theta_i') ?Pf#~U_  
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ylabel('Amplitude') XJy.xI>;  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @0C[o9  
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axis([0 90 0 1]) xdz 6[8d8  
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grid on ,w9|?%S  
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subplot(1,2,2); N[fwd=$\
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) n6M#Xc'JA  
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legend('T_p','T_s','T_n') b353+7"|  
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xlabel('\theta_i') v"mZy,u  
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ylabel('Amplitude') PX2b(fR8_O  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @#-\BQ;  
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axis([0 90 0 1]) 'O.f}m SS  
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grid on 9vwm RVN  
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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 /uDcJ1u66  

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