[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 \Uh$%#}.  
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1、光疏射向光密 lS!uL9t.  
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clear h-+GS%  
/@qnEP%  
close all w0(1o_F7.  
lwj,8  
n1=1,n2=1.45; G>>TB{}  
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theta=0:0.1:90; bWEti}kW  
2T >K!jS  
a=theta*pi/180; '7;b+Vbl#  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *uG!U%jY)  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); jSc!"Trl]  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ^Pp2T  
BfUM+RC%5  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); >.4mAO  
CYFi_6MFl  
figure(1) *47',Qy  
6! .nj3$*  
subplot(1,2,1); Oll,;{<O  
.XTR HL*:  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) jPc"qER!  
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legend('r_p','r_s','|r_p|','|r_s|') mA2L~=v#  
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xlabel('\theta_i') ^]{m*bEkR  
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ylabel('Amplitude') vA"MTncv  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4M,Q{G
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axis([0 90 -1 1]) vj,OX~|  
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grid on
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subplot(1,2,2); YkuFt>U9,  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) |S0nR<x-M  
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legend('t_p','t_s','|t_p|','|t_s|') :XFr"aSt  
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xlabel('\theta_i') cM 5V%w  
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ylabel('Amplitude') Q/zlU@  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) xmXuBp:M(R  
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axis([0 90 0 1]) 0Fc^c[  
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grid on CR8szMa  
ATzFs]~K;  
Rp=abs(rp).^2; V]Z!x.x"=y  
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Rs=abs(rs).^2; \@!"7._=  
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Rn=(Rp+Rs)/2; 1"yr`,}?8r  
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Tp=1-Rp; &,8F!)[9  
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Ts=1-Rs; M~eXC  
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Tn=(Tp+Ts)/2; aDZ,9}  
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figure(2) riv8qg  
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subplot(1,2,1); 9y+0Zj+.  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) !*e1F9k  
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legend('R_p','R_s','R_n') <q.Q,_cW  
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xlabel('\theta_i') q>rDxmP<  
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ylabel('Amplitude') SxI-pH'  
x:$ xtu  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 8AQ__&nT  
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axis([0 90 0 1]) mgE r+  
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grid on uL{CUt  
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subplot(1,2,2); Fs(FI\^  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Bwl@Muw  
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legend('T_p','T_s','T_n') D/YMovH%  
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xlabel('\theta_i') #w@V
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PH$C."Vv  
ylabel('Amplitude') )uu(I5St  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Q
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axis([0 90 0 1]) NHiac(&*  
xn=#4:f  
grid on bH.SUd)  
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Thanks

学习学习 Oyb0t|do+  

学习学习

谢谢了楼主分享

thanks

谢谢了楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

感谢楼主分享

2、光密射向光疏 cS2]?zI  
!R#PJH/TM  
clear ,2i1 4H  
p,uM)LD  
close all Uz[#ye  
'A\0^EvVv  
n1=1.45,n2=1; l<ZHS'-;8  
Fg'{K%t4  
theta=0:0.1:90; +"JWsD(C(  
Z!jJ93A"  
a=theta*pi/180; 'z)cieFKP  
@`Dh7Q  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 3H4T*&9;n  
"(kiMog-  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); -mo4`F  
u6IM~kk>5  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); IjXxH]2  
_J#oAE5]!  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); |z&7KoYK'  
5Z"N2D)."  
figure(1) klY
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r>PKl'IbE  
subplot(1,2,1); CyB4apJ  
#J8(*!I  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 5~(nHCf>  
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legend('r_p','r_s','|r_p|','|r_s|') mv`b3 $  
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xlabel('\theta_i') +&J1D8  
TV0Y{x*~iH  
ylabel('Amplitude') olXfR-2>1  
xon^=Wo;  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) U2~|AkL  
BJLeE}=H  
axis([0 90 -1.5 1.5]) r?^L/HGc  
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grid on FP
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subplot(1,2,2); v:>sS_^  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) CP$,fj  
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legend('t_p','t_s','|t_p|','|t_s|') 'dv
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xlabel('\theta_i') O0bOv S  
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ylabel('Amplitude') n* .<L  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) !ZCxi  
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axis([0 90 -0.5 3]) /#L4ec-'  
J*ZcZ FbWN  
grid on nvc(<Ovw  
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Rp=abs(rp).^2; (l(d0g&p>  
Z-" NLwt[  
Rs=abs(rs).^2; o4L
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lR`.V0xA  
Rn=(Rp+Rs)/2; $?LegX  
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Tp=1-Rp; [i>D|X  
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Ts=1-Rs; [p(0g;b
x  
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Tn=(Tp+Ts)/2; UF}Ji#fq
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figure(2) 0wF)bQv1  
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subplot(1,2,1); qzSm]l?z  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2)
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vo~Qo;m  
legend('R_p','R_s','R_n') g"g3|$#Ej|  
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xlabel('\theta_i') Tl?jq]  
ldRq:M5z  
ylabel('Amplitude') V~Jt  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) )<e,-XujY  
yD0DPtti  
axis([0 90 0 1]) gnf4H V~  
:01B)~^  
grid on 3b`#)y^y?%  
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subplot(1,2,2); *hpS/g/3\  
1.Neg|  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) |ss4pN0X  
/NuO>kQa  
legend('T_p','T_s','T_n') 5)->.*G*  
s>{\^T7y  
xlabel('\theta_i') C0ORBp  
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ylabel('Amplitude') OhM_{]*  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) w.+G+r=  
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axis([0 90 0 1]) sy6[%8
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grid on z.tN<P7  
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