[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 w{u,YM(Q  
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1、光疏射向光密 ! 2knSS  
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clear P;K LN9/4  
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close all GY.iCub  
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n1=1,n2=1.45; Nr+~3:3  
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theta=0:0.1:90; w<zzS:PF*  
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a=theta*pi/180; ; yE.R[I  
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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)); [b&V^41W  
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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)); -T i<H9OV  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ,grx'to(X  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); M2RkrW#  
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figure(1) + !"YC  
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subplot(1,2,1); ]=ZPSLuEm%  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) k.2GIc:5  

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legend('r_p','r_s','|r_p|','|r_s|') l_$>$d  
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xlabel('\theta_i') EVBOubV  
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ylabel('Amplitude') !syyOfu`}  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <;'{Tj-"  
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axis([0 90 -1 1]) (d@(QJ  
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grid on jcvq:i{  
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subplot(1,2,2); \ykA7Y%  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) isy[RAP<  
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legend('t_p','t_s','|t_p|','|t_s|') kOdpW  
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xlabel('\theta_i') 64'QTF{D  
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ylabel('Amplitude') ujN~l_4  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) *GY8#Az  
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axis([0 90 0 1]) %.wR@
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grid on Z__fwv.X[  
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Rp=abs(rp).^2; =./PY10'  

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Rs=abs(rs).^2; TuPD5-wB&  
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Rn=(Rp+Rs)/2; k h*WpX  
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Tp=1-Rp; Vr"'O
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Ts=1-Rs; <n2'm  
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Tn=(Tp+Ts)/2; !FyO5`v  
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figure(2) n[qnrk*3 %  
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subplot(1,2,1); )?B-en\  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 7\$b%A  
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legend('R_p','R_s','R_n') ^&y*=6C  
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xlabel('\theta_i') '@WBq!p  
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ylabel('Amplitude') v0(}"0  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <^Y#q  
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axis([0 90 0 1]) sh0x<_  
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grid on _8-1wx  
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subplot(1,2,2); 7@y}J5,  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) C~K/yLCAi  
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legend('T_p','T_s','T_n') "?<`]WG\  
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xlabel('\theta_i') Xs"d+dc  
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ylabel('Amplitude') 8'fF{C  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) OI:=>Bk  
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axis([0 90 0 1]) 1|G5 W:  
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grid on <&B]p  
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2、光密射向光疏 @}
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clear CJ#Yu3}  
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close all lfwBUb  
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n1=1.45,n2=1; +K;%sAZy  
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theta=0:0.1:90; Q2@yUDd!  
3A\Hiy!{F  
a=theta*pi/180; *s2 C+@ef  
N$ 2Iz  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); :O;uP_r9  
E`iE]O  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); sP8_Y,  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); MSt@yKq  
n!NA}Oa  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); zKG]7  
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figure(1) -#AO4xpI  
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subplot(1,2,1); '1\UFz  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ]}_Ohe]X  
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legend('r_p','r_s','|r_p|','|r_s|') +2s][^-KV  
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xlabel('\theta_i') 9v}vCg  
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ylabel('Amplitude') <bBgevL+_K  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $I\lJ8  
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axis([0 90 -1.5 1.5]) F;Ubdxwwl  
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grid on xn7bb[g;  
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subplot(1,2,2); `S=4cSH(  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Yp9%u9tNq  
[8`^_i=#  
legend('t_p','t_s','|t_p|','|t_s|') AiV1 vD`  
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xlabel('\theta_i') 2fdC @V  
sH)40QmO{  
ylabel('Amplitude') QPsvc6ds  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) y@]:7  
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axis([0 90 -0.5 3]) K%>3ev=y.s  
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grid on "& q])3h=  
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Rp=abs(rp).^2; 6C*4' P9>  
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Rs=abs(rs).^2; ",Fqpu&M  
6b=7{nLF  
Rn=(Rp+Rs)/2; xy<)zKp  
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Tp=1-Rp; ~
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Ts=1-Rs; !t
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Tn=(Tp+Ts)/2; )'t&LWS~  
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figure(2) T#R*]  
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subplot(1,2,1); :.NCS`z_  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) $T}Dn[.  
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legend('R_p','R_s','R_n') >W@3_{0  
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xlabel('\theta_i') r
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ylabel('Amplitude') &<S]=\  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5JRj'G0I  
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axis([0 90 0 1]) }Fgp*x-G  
eWAgYe2  
grid on $iAd)2LT  
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subplot(1,2,2); ZuQ\Pyx  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 5NAB^&{Z<X  
Hqm1[G)  
legend('T_p','T_s','T_n') #_[W*-|L  
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xlabel('\theta_i') [^E{Yz=8,  
@)p?!3{"  
ylabel('Amplitude') c,RY j  
pj9s=}1 '  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _i+7O^=d6X  
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axis([0 90 0 1]) ,Taq~  
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grid on B< BS>(Nr>  
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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 u%O^hcfb  

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