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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 qfa}3k8et  
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1、光疏射向光密 mTJ"l(,3  
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clear w2C&%Xk  
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close all R3Ee%0QK  
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n1=1,n2=1.45; Co[n--@C  
TW2Z=ks=  
theta=0:0.1:90; DRp&IP<  
ZL=N[XW4'  
a=theta*pi/180; +YuzpuxjJ  
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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)); gJk[Ja  
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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)); iE=P'"I  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 7 v~ro  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); K#wK1 Sv  
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figure(1) 9ad6uTc  
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subplot(1,2,1); !*_K.1'  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) G5;V.#"Z[  
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legend('r_p','r_s','|r_p|','|r_s|') -bm,:Iy!  
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xlabel('\theta_i') r :NH6tAL  
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ylabel('Amplitude') kW +G1|  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7*;^UqGjz  
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axis([0 90 -1 1]) "wINBya'M  
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grid on 9~~UM<66W  
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subplot(1,2,2); ;`X~ k|7K  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) X4'kZ'Sy<  
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legend('t_p','t_s','|t_p|','|t_s|') s7"i.A  
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xlabel('\theta_i') ($S Lb6  
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ylabel('Amplitude') /PW&$P1.]"  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 6c &Y  
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axis([0 90 0 1]) -TS? fne)  
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grid on /AR]dcL@76  
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Rp=abs(rp).^2; t!t=|JNf{  
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Rs=abs(rs).^2; Jn#K0( FQ  
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Rn=(Rp+Rs)/2; !M^\f N1  
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Tp=1-Rp; {cR3.%wX  
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Ts=1-Rs; J*K<FFp3<  
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Tn=(Tp+Ts)/2; )5GQJiY  
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figure(2) m8AAp1=  
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subplot(1,2,1); Xm@aYNV  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) "i%jQL'.  
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legend('R_p','R_s','R_n') 'hIU_  
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xlabel('\theta_i') t3>$|}O]t  
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ylabel('Amplitude') A{(T'/~"  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \O? u*  
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axis([0 90 0 1]) j)";:v  
Rcf=J){D6  
grid on 1Z 6SI>p  
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subplot(1,2,2); <4f,G]UH_  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) G"> 0]LQ  
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legend('T_p','T_s','T_n') m^A]+G#/  
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xlabel('\theta_i') 4>k I^  
4+Ti7p06&\  
ylabel('Amplitude') t'aSF{%  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) .YC;zn^  
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axis([0 90 0 1]) _+n;A46  
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grid on ~S;!T  
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[attachment=80479] Yrsp%<qj  
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[attachment=80478] @/(@/*+"  
200833 2017-11-26 22:36
2、光密射向光疏 6w!e?B2/%  
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clear ]#5^&w)'  
-#%X3F7/w  
close all |*E"G5WZM  
8f-:d]  
n1=1.45,n2=1; 9v$qrM`8  
T3rn+BxF7  
theta=0:0.1:90; {,Fcd(MU  
kO+s+ 55  
a=theta*pi/180; k(v"B@0  
X'@f"=v9k  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); f?0D%pxc}&  
,ey0:.!;  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); "& Mou  
6Hn)pD#U  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ob]dZ  
6V P)$h8  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); }! =U^A)  
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figure(1) jN{Zw*  
yZ~b+=UM  
subplot(1,2,1); 1I \tu  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) s ^3[W0hL  
]?# #))RUS  
legend('r_p','r_s','|r_p|','|r_s|') JT#7yetk'  
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xlabel('\theta_i')  mmcdtVe  
h"8QeX:((  
ylabel('Amplitude') e{JVXc[D  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 6}STp_x  
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axis([0 90 -1.5 1.5]) tIp{},bQ^  
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grid on D2)i3vFB  
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subplot(1,2,2); ssT@<Tk^4  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) J[6VBM.Y  
P{Lg{I_w.B  
legend('t_p','t_s','|t_p|','|t_s|') X\mz+al>[  
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xlabel('\theta_i') Ysl9f1>%  
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ylabel('Amplitude') (FG^UA#'  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) "4RQ`.S R  
B#:E?a;{  
axis([0 90 -0.5 3]) ]'e A O  
#EFMgQO  
grid on N;g$)zCV1  
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Rp=abs(rp).^2; 3u4:l  
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Rs=abs(rs).^2; 'mUI-1GkT  
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Rn=(Rp+Rs)/2; T$ IUKR  
Mn{XVXY@qm  
Tp=1-Rp; q^%5HeV 2  
j)BQMtt&U  
Ts=1-Rs; La]4/=a  
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Tn=(Tp+Ts)/2; Qi"'bWX@  
9':/Sab:7v  
figure(2) 3@'lIV ?,q  
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subplot(1,2,1); Z>&K&ttJ  
v?}pi  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Y!aLf[x]  
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legend('R_p','R_s','R_n') `T`c@A  
w0X$rl1  
xlabel('\theta_i') gLV^Z6eE  
VT Vm7l  
ylabel('Amplitude') }`#B f  
l)H9J]  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) p8_2y~ !  
a 1NCVZ  
axis([0 90 0 1]) #]igB9Cf)w  
5/k)\`  
grid on !bieo'c  
Z+Xc1W^  
subplot(1,2,2); dhs#D:/{9  
J7_8$B-j7  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) sb 8dc  
hg{ &Y(J!U  
legend('T_p','T_s','T_n') `P#8(GU  
V.U|OQouT  
xlabel('\theta_i') C_C$5[~-:  
[1mIdwS  
ylabel('Amplitude') BJ"Ay@D*  
VGfD;8]z  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @|Z*f\  
SK}HXG{?  
axis([0 90 0 1]) |^Ur  
3/:LYvM<  
grid on aam1tm#Q  
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[attachment=80481] xTGP  
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[attachment=80480]
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 ;5,`Jpca  
jabil 2025-03-07 09:40
Thanks
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