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200833 2017-11-26 22:33

利用MATLAB光学仿真（1）

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  0J_Np  
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1、光疏射向光密 ^K;,,s;0  
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clear \l]jX: 9(  
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close all 778L[wYe  
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n1=1,n2=1.45; DVCc^5#  
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theta=0:0.1:90; LoTq2/  
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a=theta*pi/180; =fRP9`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)); S"}FsS;k<?  
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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)); q WP1i7]=/  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); X?1 :Z|pJ  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); (j cLzq  
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figure(1) (6.0gB$aTu  
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subplot(1,2,1); Q <78< #I  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ~){*XJw6  
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legend('r_p','r_s','|r_p|','|r_s|') Kj'm<]u  
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xlabel('\theta_i') * y`^Fc  
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ylabel('Amplitude') I5 [r-r  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +z9;BPw %  
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axis([0 90 -1 1]) . vYGJ8(P  
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grid on HeF[H\a<  
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subplot(1,2,2); o_={xrmIA  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;/e!!P]jP  
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legend('t_p','t_s','|t_p|','|t_s|') *d(wO l5[  
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xlabel('\theta_i') T0aK1Lh  
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ylabel('Amplitude') |!&,etu  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Tm` QZh3  
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axis([0 90 0 1]) c) 1m4SB@  
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grid on v< ;, x  
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Rp=abs(rp).^2; J }JT%S W  
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Rs=abs(rs).^2; MR8-xO'w  
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Rn=(Rp+Rs)/2; "7gS*v,r  
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Tp=1-Rp; J$'T2@H#  
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Ts=1-Rs; a}e7Q<cGj  
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Tn=(Tp+Ts)/2; e2Xx7*vS  
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figure(2) if_e$,dh~>  
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subplot(1,2,1); 9E (>mN  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) >} aykz*g  
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legend('R_p','R_s','R_n') .,EZ-&6{  
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xlabel('\theta_i') eIg2m <9u  
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ylabel('Amplitude') ]`u{^f  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 8N|*n"`}  
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axis([0 90 0 1]) SHwl^qVk[  
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grid on \ iP[iE=  
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subplot(1,2,2); =OjzBiHR  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Oq!u `g9  
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legend('T_p','T_s','T_n') crvWAsm  
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xlabel('\theta_i') 3b PVKsY  
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ylabel('Amplitude') SSI&WZ2a  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O;,k~  
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axis([0 90 0 1]) RQhS]y@e  
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grid on KSkT6_<  
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[attachment=80479] __N< B5E  
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[attachment=80478] &iR3]FNI  
200833 2017-11-26 22:36
2、光密射向光疏 D>tex/Of3  
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clear fNR2(8;}  
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close all C:z+8wt  
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n1=1.45,n2=1; ^#-d^ )f;  
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theta=0:0.1:90; Xa o*h(Q@L  
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a=theta*pi/180; h[eC i  
8(d Hn  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 3XykIj1  
b0X<)1O  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 'k^d-Mh>h  
S7oPdzcU-  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); _{Z!$q6,  
Y=G9|7*lO  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); s"OP[YEke/  
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figure(1) Nk JOD3>U  
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subplot(1,2,1); v@,n]"  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 8M6 Xd]{%  
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legend('r_p','r_s','|r_p|','|r_s|') ht>C6y  
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xlabel('\theta_i') >T{Gl/? p  
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ylabel('Amplitude') h@kq>no  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) q8Jhs7fv  
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axis([0 90 -1.5 1.5]) IvZ,|R?  
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grid on >b;o&E`\  
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subplot(1,2,2); bwR$9 10b  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) mV>l`&K=  
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legend('t_p','t_s','|t_p|','|t_s|') ~`Y!_'(x  
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xlabel('\theta_i') [,bra8f[C  
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ylabel('Amplitude') uqotVil,  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ?2(5 2?cJ  
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axis([0 90 -0.5 3]) B}(r>8?dm  
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grid on 8(zE^W,[8"  
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Rp=abs(rp).^2; IgIM8"N  
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Rs=abs(rs).^2; V?L8BRnV  
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Rn=(Rp+Rs)/2; 11^.oa+`  
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Tp=1-Rp; (-D^_*f  
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Ts=1-Rs; 7!;H$mxP  
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Tn=(Tp+Ts)/2; ]5O]=^ u0  
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figure(2) RVN;j4uMg  
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subplot(1,2,1); 0f5c#/7C9  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) bu8AOtY9E-  
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legend('R_p','R_s','R_n') >~;= j~  
:Ahw{z`H#  
xlabel('\theta_i') OWys`2W  
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ylabel('Amplitude') 3iIURSG@  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^~1Z"kAnT  
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axis([0 90 0 1]) ,p>@:C/M  
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grid on ym8pB7E7%  
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subplot(1,2,2); 1EMud,,:  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) @~QI3)=s  
*.6m,QqJ(  
legend('T_p','T_s','T_n') +-!2nk`"a  
{%oxzdPc  
xlabel('\theta_i') t2(vtxrt  
_+9o'<#u(  
ylabel('Amplitude') ny"z<N&}/  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3UX6Y]E3  
)A$xt)}P!{  
axis([0 90 0 1]) X7rsO^}W  
.*X=JFxl  
grid on LC4W?']/  
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[attachment=80481] [(2XL"4D  
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大博归来 2017-11-27 08:03
感谢楼主分享
hit2011 2017-12-02 14:58
这个在《MATLAB在光学中的应用》这本书里都有
direwolf100 2017-12-05 22:34
谢谢了楼主分享
jabil 2022-03-07 13:54
thanks
cici2015 2022-08-03 07:32
谢谢了楼主分享
13428299720 2023-07-21 20:02
学习学习
lalallaal 2025-02-28 10:13
学习学习 tyWDa$u,u  
jabil 2025-03-07 09:40
Thanks
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