[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 k8&;lgO'  
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1、光疏射向光密 >* f-Wde  
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clear U)]oO  
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close all @<hb6bo,N
 
N2^=E1|_  
n1=1,n2=1.45; 'T*&'RQr  
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theta=0:0.1:90; /|6N*>l)y  
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a=theta*pi/180; 5}l[>lF  
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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)); H(ARw'M  
r= `Jn6@  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); U2#"p   
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $f <(NM6?  

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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); RLjc&WhzXu  
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figure(1) EU/C@B2*Dl  
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subplot(1,2,1); Y.(PiuG$G  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) XJ;57n-?  
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legend('r_p','r_s','|r_p|','|r_s|') 
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xlabel('\theta_i') D0-3eV-  
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ylabel('Amplitude') AlaW=leTe  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) oWT3apGO  
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axis([0 90 -1 1]) Qz1E 2yJ  
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grid on W' VslZG  
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subplot(1,2,2); y'q$|  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) +5*95-;0  
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legend('t_p','t_s','|t_p|','|t_s|') _1\v  
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xlabel('\theta_i') lukB8  
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ylabel('Amplitude') pz}.9 yI8  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) c7k~S-nU  
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axis([0 90 0 1]) )mT<MkP  
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grid on .uZ3odMlx  
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Rp=abs(rp).^2; r#p9x[f<Y  
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Rs=abs(rs).^2; )Nw8O{\  
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Rn=(Rp+Rs)/2; g*_&  
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Tp=1-Rp; zwjgE6  
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Ts=1-Rs; XNkn|q2  
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Tn=(Tp+Ts)/2; R 'zWYQ  
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figure(2) r`d4e,(  
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subplot(1,2,1); 7`'Tbp  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) oD.Cs'  
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legend('R_p','R_s','R_n') :DNY7TvZ  
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xlabel('\theta_i') u&7[n_  
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ylabel('Amplitude') m-#2n? z-  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Kw ]=  
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axis([0 90 0 1]) !_)[/q"  
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grid on !pX>!&sb  
on`3&0,.  
subplot(1,2,2); NZ0;5xGR  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) eD6fpe\(  
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legend('T_p','T_s','T_n') z<?)Rq"  
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xlabel('\theta_i') %>{0yEC  
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ylabel('Amplitude') p<"mt]  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 8{sGNCvU  
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axis([0 90 0 1]) UP,c|  
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grid on cVF"!.  
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2、光密射向光疏 pEA:L$&  
nU7[c| =  
clear =T7.~W  
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close all Qo|\-y-#  
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n1=1.45,n2=1; 'm$L Ij?@  
4j^ @wV'  
theta=0:0.1:90; Xsa].  
5v*\Zr5ha  
a=theta*pi/180; h/Y'<:  
jnwu9PQ  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 2D5StCF$O  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); N8df8=.kw  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 4#Jg9o   
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); pd$[8Rmj_  
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figure(1) xyXa .  
x kD6Iw  
subplot(1,2,1); ~a2}(]  
m9;SrCN_  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) .T`%tJ-Em  
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legend('r_p','r_s','|r_p|','|r_s|') #KvlYZ+1  
r<$y=B  
xlabel('\theta_i') gjlx~.0d  
CTmT@A{  
ylabel('Amplitude') Dw"\/p:-3  
r9XZ(0/p  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |DwZ{(R"W  
 rPm x  
axis([0 90 -1.5 1.5]) #<x
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BTxrp  
grid on /x *3}oI  
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subplot(1,2,2); 3OB"#Ap8<  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) dc'Y`e  
e|r`/:M  
legend('t_p','t_s','|t_p|','|t_s|') }6ldjCT/,  
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xlabel('\theta_i') NHE18_v5  
e'<)V_  
ylabel('Amplitude') _yT Ed"$  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) RM/ 0A|  
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axis([0 90 -0.5 3]) TcoB,Kdce  
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grid on q.}CU.dp  
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Rp=abs(rp).^2; ee=D1qNu;  
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Rs=abs(rs).^2;
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Rn=(Rp+Rs)/2; z(~_AN M4,  
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Tp=1-Rp; 1.>m@
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Ts=1-Rs; 3(UVg!t  
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Tn=(Tp+Ts)/2; Xwtqi@zlE  
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figure(2) 8?C5L8)  
FGkVqZ Y2?  
subplot(1,2,1); 4&iCht =  
./~(7o$  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Yr|4Fl~U  
D43z9z-:L  
legend('R_p','R_s','R_n')  AOx[  
v-Sd*(6  
xlabel('\theta_i') 8b=_Y;  
TsZ@  
ylabel('Amplitude') @%SQFu@FJ  
K,UMqAmk  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >R=|Wo`Ri  
jj>]9z  
axis([0 90 0 1]) A%-6`>  
tf G@&&%9  
grid on b`_Q8 J  
zBH2@
d3W  
subplot(1,2,2); XX~,>Q}H=  
LgYq.>Nl9  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) aQ~s`^D  
nRY5xRvK  
legend('T_p','T_s','T_n') 2T`!v  
wQLSf{2  
xlabel('\theta_i') i mM_H;-X  
1:wQ.T  
ylabel('Amplitude') w*Ihk)  
 2Rz  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) H)&R=s  
. ]M"# \  
axis([0 90 0 1]) azU"G(6y?+  
F1hHe<)  
grid on |K~Nw&rZ]  
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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 s}% M4  

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