[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 GRGzP&}@  
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1、光疏射向光密 "nZ*{uv  
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clear Z&ZP"P4  
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close all q+P|l5_ t  
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n1=1,n2=1.45; W"):-Wq  
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theta=0:0.1:90; M9EfU  
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a=theta*pi/180; D-
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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)); Uh7v@YMC  

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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)); Sczc5FG  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); O_$m!5ug  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); f-}[_Y%;  
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figure(1) s
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subplot(1,2,1); $SM#< @  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 8d?g]DEN)6  
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legend('r_p','r_s','|r_p|','|r_s|') cU ?0(z7  
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xlabel('\theta_i') [PQ?#:r  
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ylabel('Amplitude') ~2<7ZtV=  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) G:<`moKgL  
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axis([0 90 -1 1]) +6UVn\9Q  
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grid on  $rz=6h  
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subplot(1,2,2); T?:glp[4I  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ,S'p%g  
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legend('t_p','t_s','|t_p|','|t_s|') Ul2R'"FB  
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xlabel('\theta_i') qtiz a~u  
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ylabel('Amplitude') ^&bRX4pYo  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) u
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axis([0 90 0 1]) e?_@aa9~@{  
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grid on "`M?R;DH  
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Rp=abs(rp).^2; [|P!{?A43|  
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Rs=abs(rs).^2; w4W_iaU  
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Rn=(Rp+Rs)/2; x%+aKZ(m)  
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Tp=1-Rp; PUo/J~v  
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Ts=1-Rs; "*LD 3  
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Tn=(Tp+Ts)/2; k$H%.l;E  
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figure(2) WcHgBbNe  
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subplot(1,2,1); qw@puw@D  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) u:m]CPz  
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legend('R_p','R_s','R_n') BT)X8>ct  
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xlabel('\theta_i') q4}PM[K?=\  
slg ]#Dy  
ylabel('Amplitude') S+'rG+NJ  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) t5'V6n
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n)
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axis([0 90 0 1]) DyeQJ7p  
v2H#=E4cZ#  
grid on C8vOE`U,J  
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subplot(1,2,2); OCZ[D{i9@  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) iCW*]U  
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legend('T_p','T_s','T_n') O!Oumw,$  
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xlabel('\theta_i') hoQs @[  
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ylabel('Amplitude') h$.:Uj8/  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Qu}W/j|3  
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axis([0 90 0 1]) 2gzou|Y  
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grid on br0++}vwL  
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2、光密射向光疏 {X*^s5{
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rp6q?3=g  
clear zH>hx5,k'X  
MY/3]g<  
close all Pl<;[cB  
m8SA6Y\  
n1=1.45,n2=1; 5w\fSY  
,SQZD,3v4  
theta=0:0.1:90; !A>z(eIsv`  
"Vr[4&`  
a=theta*pi/180; KAsS[  
0b/WpP  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); &f7fK|}  
(u]N  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); B%KG3]  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Dk+&X-]6x5  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Qb!PRCHQ  
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figure(1) gqR)IVk>%  
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subplot(1,2,1); eeHP&1= 7  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) [! 'op0  
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legend('r_p','r_s','|r_p|','|r_s|') C-8qj>  
#-8\JEn  
xlabel('\theta_i') 6Z`R#d #I  
y$3;$ R^  
ylabel('Amplitude') Y3h/~bM%
 
BW"&6t#kA  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }hYZ" A~  
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axis([0 90 -1.5 1.5]) ,=aJVb=C  
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grid on kGL1!=>  
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subplot(1,2,2); _:+ KMR  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) l~D N1z6`  
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legend('t_p','t_s','|t_p|','|t_s|') LGc&o]k  
nuoPg3Nl  
xlabel('\theta_i') H33i*][H  
L{E^?iX  
ylabel('Amplitude') kNT}dv]<  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) `]LSbS  
XX1Il;1G#  
axis([0 90 -0.5 3]) peJKNX.!q  
Z4){ 7|~a  
grid on DI`%zLDcY  
saU]`w_Z*  
Rp=abs(rp).^2; QZX~T|Ckv  
Sa"9^_.2#  
Rs=abs(rs).^2; }<PxWZ`,\  
EZ.!rh~+  
Rn=(Rp+Rs)/2; c8Q]!p+Yp  
T6pLoaKu  
Tp=1-Rp; `z0{S!  
#q3l!3\mW  
Ts=1-Rs; 9S[
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eZr&x~] -w  
Tn=(Tp+Ts)/2; l{VSb92f  
-o+74=E8[?  
figure(2) tA$)cg+.  
DMF -Y-h  
subplot(1,2,1); 9s}Kl($  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) {k5X*W  
XhdSFxW}  
legend('R_p','R_s','R_n') ri1C-TJM)  
/U6%%%-D`  
xlabel('\theta_i') CC;! <km  
B/Gd(S`@q  
ylabel('Amplitude') 9_fePS|Z4  
T@%m7|P  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) N~pIC2Woo  
}X;U|]d  
axis([0 90 0 1]) +%N KQ'49I  
Pv<FLo%u<  
grid on o{*ay$vA]  
*2}O-e  
subplot(1,2,2); M[~{Vd  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) yMLOUUWa8x  
kCUT ^  
legend('T_p','T_s','T_n') 19(Dj&x  
u@p?  
xlabel('\theta_i') hNXBVIL<&  
NZu)j["  
ylabel('Amplitude') 0aR,H[r[?  
PN$ .X"D8  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7%OKH<i\2<  
*QM~O'WhD  
axis([0 90 0 1]) [oc~iDx%W  
4R>zPEo  
grid on NYABmI/0c  
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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 rWr/p^~  

Thanks