[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 +ktubJ@Qgj  
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1、光疏射向光密 MU>6s`6O  
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clear : *8t,f~s^  
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close all ,CxIA^  
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n1=1,n2=1.45; evvv&$&  
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theta=0:0.1:90; ){I!orQ  
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a=theta*pi/180; Ud& '*,  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [/Sk+ID  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); /T<))@$  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); `lcQ Yd<,4  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Ay@/{RZz  
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figure(1) 85:KlBe%+  
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subplot(1,2,1); 3|Y2BAd  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) F*-+5nJ&@  
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legend('r_p','r_s','|r_p|','|r_s|') ><xJQeW  
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xlabel('\theta_i') ;_S DW  

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ylabel('Amplitude') Wud-(19  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 43,baeG  
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axis([0 90 -1 1]) DX_?-jw})f  
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grid on 3Z}v%=5 "  
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subplot(1,2,2); sSy!mtS
 
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) z?n6l7sH  
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legend('t_p','t_s','|t_p|','|t_s|') c'DNO~H  
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xlabel('\theta_i') Y|6gg  
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ylabel('Amplitude') ws<pBC,m  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4_
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axis([0 90 0 1]) /@64xrvIl=  
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grid on .I0M'L~!/L  
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Rp=abs(rp).^2; NJCSo(O  
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Rs=abs(rs).^2; ;+1ooeU  
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Rn=(Rp+Rs)/2; A=sz8?K+`  
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Tp=1-Rp; E|A~T7G=  
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Ts=1-Rs; 5+2qx)FZ  
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Tn=(Tp+Ts)/2; zY2x_}#Q\"  
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figure(2) |kY  
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subplot(1,2,1); U|<>xe*|%  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) {e5-  
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legend('R_p','R_s','R_n') ?Y 5Vje[^  
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xlabel('\theta_i') Z<*"sFpAO  
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ylabel('Amplitude') BMtk/r/  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) m/q`k  
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axis([0 90 0 1]) +,Or^pO=  
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grid on 8|nc($}~  
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subplot(1,2,2); ]Ot=At  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) &fsk ESV0  
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legend('T_p','T_s','T_n') s@E)=;!  
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xlabel('\theta_i') <rvM)EJv|  
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ylabel('Amplitude') bM2x (E\
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)])
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axis([0 90 0 1]) RY3=UeoF  
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grid on S..8,5mBH  
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2、光密射向光疏 0:-z+`RHE  
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clear K4o']{:U  
VbTX;?  
close all ThkCKM  
qu!x#OY+  
n1=1.45,n2=1; /sn }Q-Zy2  
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theta=0:0.1:90;
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n2:Uu>/  
a=theta*pi/180; -[&Z{1A4x4  
0l/7JH_@V  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); K9Onjs%U  
Y]Z&  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); wWSw0 H/  
+Z-{6C  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 0LYf0^P  
bxO[y<|XL  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 4^k8|#c  
D=Nt0y  
figure(1) !I\eIV>0b  
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subplot(1,2,1); :4x6dYNU  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) G$)tp^%]  
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legend('r_p','r_s','|r_p|','|r_s|') 9V~hz
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xlabel('\theta_i') qrjSG%i~J7  
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ylabel('Amplitude') lxbC 7?O
 
M= |is*t  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $FDGHFM  
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axis([0 90 -1.5 1.5]) I[gPW7&S@  
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grid on 7xY&7 x(v  
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subplot(1,2,2); mey -Bn  
0v6Z4Ahpo  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) J5O/c,?g  
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legend('t_p','t_s','|t_p|','|t_s|') \Tn
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xlabel('\theta_i') ^|vP").aQm  
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ylabel('Amplitude') YHke^Ind
 
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) X+HPdrT  
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axis([0 90 -0.5 3]) qF-Fc q  
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grid on a+CJJ3T-  
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Rp=abs(rp).^2; %&lwp  
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Rs=abs(rs).^2; TEGg)\+D>  
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Rn=(Rp+Rs)/2; /UY'E<wBx  
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Tp=1-Rp; l}T@Cgt  
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Ts=1-Rs; w@YPG{"j  
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Tn=(Tp+Ts)/2; u[4h|*'"|  
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figure(2) "(~fl<;  
3j[<nBsn.  
subplot(1,2,1); $GQEdVSNo  
G9#3 |B-?  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) M\Wg|gpy  
.:B0(4Mj  
legend('R_p','R_s','R_n') s0h0E
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9"/=D9o9  
xlabel('\theta_i') (JE&1 @  
ae2I,Qt%  
ylabel('Amplitude') 9Uz2j$p7  
6Bd:R}yZP7  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) T :^OW5d  
f'7/
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axis([0 90 0 1]) }N,v&B  
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grid on V' i@N  
BvHI}=  
subplot(1,2,2); P.=Dd"La  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 2$2@?]|?  
5-'Z.[ImB?  
legend('T_p','T_s','T_n') OMab!  
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xlabel('\theta_i') v0;dk(  
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ylabel('Amplitude') Pp4Q)2X  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) CHL5@gg@>y  
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axis([0 90 0 1]) -:Juxh  
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grid on n
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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 5<h:kZ"S^g  

Thanks