[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 ,CwhpW\Y  
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1、光疏射向光密 ]FQ4v.7  
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clear SLZv`  
("mW=Ln  
close all uCmdNY  
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n1=1,n2=1.45; {`l]RIig  
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theta=0:0.1:90; iHQFieZ.E  
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a=theta*pi/180;  '6 w|z^  
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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)); bu@Pxz%_  

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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)); -YSn 3=  

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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); =fG(K!AQ  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ^JYR^X>_  
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figure(1) bFJmXx&  
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subplot(1,2,1); "D@
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) /j3oHi$  
ls#O0  
legend('r_p','r_s','|r_p|','|r_s|') 0!+ab'3a  
gxt2Mq;q~}  
xlabel('\theta_i') *Q51'?y  
swlxV@NQ  
ylabel('Amplitude') kl2]#G(  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) US> m1KsX  
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axis([0 90 -1 1]) B-M|}T  
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grid on \k;raQR4t*  
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subplot(1,2,2); _k6N(c2Nd  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) -pkeEuwv{  
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legend('t_p','t_s','|t_p|','|t_s|') & qd:o}  
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xlabel('\theta_i') Z< uwqA  
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ylabel('Amplitude') 'HOcK8}b  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #gsAwna3  
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axis([0 90 0 1]) |fRajuA;  
4b7}Sr=`  
grid on &TC  
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Rp=abs(rp).^2; Qj3UO]>  
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Rs=abs(rs).^2; )OjbmU!7  
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Rn=(Rp+Rs)/2; _L# Tp  
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Tp=1-Rp; \a|gzC1
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Ts=1-Rs; j}h50*6KO  

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Tn=(Tp+Ts)/2; U*1~Zf  
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figure(2) JziMjR  
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subplot(1,2,1); tx5@r;  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Z39^nGO  
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legend('R_p','R_s','R_n') w(mn@Qc  
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xlabel('\theta_i') ^!kvgm<{$  
b[BSUdCB  
ylabel('Amplitude') JTz1M~  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) %iJ6;V4  
h]MSjC.X  
axis([0 90 0 1]) ?$r+#'asd(  
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grid on #2cH.`ty  
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subplot(1,2,2); o8Bo%OjE  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) EDnmYaa)dZ  
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legend('T_p','T_s','T_n') %t<Y6*g  
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xlabel('\theta_i') /Ee0S8!Z!1  
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ylabel('Amplitude') ^g~-$t<!  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) {]Lc]4J  
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axis([0 90 0 1]) JaIj9KLNX  
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grid on yM#W,@  
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2、光密射向光疏 Y %<B,3  
_ H@pYMNH  
clear OZISh?  
XPY66VC&_  
close all Gt 2rJ<>  
M8g=t[\  
n1=1.45,n2=1; HVk3F|]V  
n P69W  
theta=0:0.1:90; ^U`[P@T  
8:0
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a=theta*pi/180; >\>HRyt%  
*1elUI2Rg  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [IHT)%>E8&  
QDgOprha  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 63k8j[$  
vn kktD'n  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ?j $z[_K  
@c{Z?>dUc#  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); yJKez
IL\z  
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figure(1) #G]s.by('  
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subplot(1,2,1); jh=:QP/  
%n-LDn  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) S:t7U%  
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legend('r_p','r_s','|r_p|','|r_s|') t[^}/ S  
bu$5gGWVf  
xlabel('\theta_i') uQ&xoDCB  
!E$S&zVMQ  
ylabel('Amplitude') ['sIR+c%'O  
Bp4QHv9xqL  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) `N|WCiBV.  
xXHz)w  
axis([0 90 -1.5 1.5]) al"1T-  

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grid on q Rt
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subplot(1,2,2); 6?hv,^  
QtX ->6P>  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;GvyL>|-~  
hz )L+  
legend('t_p','t_s','|t_p|','|t_s|') (6.0gB$aTu  
ss-Be  
xlabel('\theta_i') IG#=}q
  
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ylabel('Amplitude') 7OW;omT`  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }TYCF@  
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axis([0 90 -0.5 3]) o'yR^`  
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grid on K=!J=R;  
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Rp=abs(rp).^2; +z9;BPw%  
q>H!?zi\Hy  
Rs=abs(rs).^2; . vYGJ8(P  
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Rn=(Rp+Rs)/2; xu_Tocvop  
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Tp=1-Rp; mu:Q2t^  
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Ts=1-Rs; SHhg
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Tn=(Tp+Ts)/2; 5*4P_q(AxD  
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figure(2) )Oa"B;\j  
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subplot(1,2,1); E9 q8tE}  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) NB16O!r  
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legend('R_p','R_s','R_n') #H5*]"w6I  
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xlabel('\theta_i') ku`'w;5jT  
U,g!KN3P  
ylabel('Amplitude') BHU(
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) e6{/e+/R  
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axis([0 90 0 1]) %_A1WC  
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grid on ;'cv?3Y  
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subplot(1,2,2); pY-izML  

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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) zwAuF%U  
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legend('T_p','T_s','T_n') b6g,mzqu  
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xlabel('\theta_i') BNaZD<<  
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ylabel('Amplitude') d9sgk3K  
2X6y^f';\  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]4hXK!^Uu  
iiRK3m  
axis([0 90 0 1]) YM#XV*P0 q  
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grid on cL=P((<K?  
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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 Ep'C FNbtW  

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