[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 Jc{zi^)(EN  
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1、光疏射向光密 5%tIAbGW  
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clear {H"gp
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close all |mmIu_  
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n1=1,n2=1.45; 1iF |t5>e  
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theta=0:0.1:90; Z(Q?epyT  
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a=theta*pi/180; #c?\(qjWA  
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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)); rl4daV&,U  
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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)); 173/A=]  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); `$MO.K{  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); E\RQm}Z09  
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figure(1) k
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/*D]4AK  
subplot(1,2,1); 8?
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) |q5\1}@:
  
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legend('r_p','r_s','|r_p|','|r_s|') c#CX~  
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xlabel('\theta_i') 9"MC<  
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ylabel('Amplitude') 0>E`9|   
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 'lIT7MK  
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axis([0 90 -1 1]) LvW9kL+WiQ  
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grid on "p$`CUtI  
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subplot(1,2,2); t3U*rr|A  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Lxd*W2$3_  
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legend('t_p','t_s','|t_p|','|t_s|') jQsucs5$h  
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xlabel('\theta_i') wl5!f|  
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ylabel('Amplitude') {\lu; b!  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #^Sd r-   
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axis([0 90 0 1]) xmq~:fcU=  
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grid on s*(Y<Ap7d  
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Rp=abs(rp).^2; |\N[EM%.@  
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Rs=abs(rs).^2; WR~uy|mX  
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Rn=(Rp+Rs)/2; $IB@|n  
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Tp=1-Rp; nm\n\j~  
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Ts=1-Rs; &\c$s  
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Tn=(Tp+Ts)/2; hDVD@b
 
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figure(2) \? MuORg  
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subplot(1,2,1); T6AFwo,Q  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Rn-L:o@?  
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legend('R_p','R_s','R_n') A
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xlabel('\theta_i') f+L )x  
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ylabel('Amplitude') 6OIA>%{  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) a>""MC2  
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axis([0 90 0 1]) "$ u"Py  
ap_(/W  
grid on r1F5&?{q  
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subplot(1,2,2); 9$#2+G!J  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 0/-[k  
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legend('T_p','T_s','T_n') H(n_g QAX  
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xlabel('\theta_i') &=_YL  
,uDB]  
ylabel('Amplitude') QN*'MA"M  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]lm9D@HMC  
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axis([0 90 0 1]) ){8^l0b  
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grid on B4U+q|OD#  
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2、光密射向光疏 Sh{odrMj*  
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clear %o*
afd  
E)>6}0P  
close all i[WTp??Uv  
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n1=1.45,n2=1; W\FKAvS  
/I".n]  
theta=0:0.1:90; I,t 0X)  
T>W(Caelq  
a=theta*pi/180; D|_}~T>;&  
4[rD|  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); +O9l@X$l=  
Mt-y{*6!k  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ]3Mm"7`  
= `70]%  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *>Om3[D  
31J7# S2  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); vC+mC4~/(  
jS|(g##4  
figure(1) w;{k\=W3Ff  
O`rrg~6#  
subplot(1,2,1); Ntg#-_]  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ,]20I _  
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legend('r_p','r_s','|r_p|','|r_s|') n |.- :Zy  
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xlabel('\theta_i') ZhM-F0;`  
dk;Ed  
ylabel('Amplitude') $F\&?B1.  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =a7m^e7  
| ql!@M(p  
axis([0 90 -1.5 1.5]) ,cgC_%  
&[JI L=m5  
grid on Og-Mnx3  
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subplot(1,2,2); 0~BQ8O=+mn  
]FQ4v.7  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) AB+Zc ]  
SLZv`  
legend('t_p','t_s','|t_p|','|t_s|') ("mW=Ln  
uCmdNY  
xlabel('\theta_i') 4#4kfGoT  
]P]lG-  
ylabel('Amplitude') 0#<
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j:U>V7Kn3~  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) A+Z3b:}~  
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axis([0 90 -0.5 3]) "ZT=[&2  
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grid on *GD 1[:  
KGK8;Q,O  
Rp=abs(rp).^2; z36nyo  
8>O'_6Joj  
Rs=abs(rs).^2; QZQ@C#PR;  
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Rn=(Rp+Rs)/2; @RT yCr  
Fd|:7NRA<  
Tp=1-Rp; w)DO"Z7  
tk_y~-xz  
Ts=1-Rs; /?2yo{Fg  
F~RUb&*/<  
Tn=(Tp+Ts)/2; Bg7?1m  
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t  
figure(2) dbnH#0i  
Q"Q|]f*  
subplot(1,2,1); ?V
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I+u=H2][2  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Fi*6ud\n!  
Mzxz-cE  
legend('R_p','R_s','R_n') /R@(yT=t  
x1A^QIuxO  
xlabel('\theta_i') 'fK_J}+P  
]1D>3  
ylabel('Amplitude') XXe7w3x
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S7N54X2JwL  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ) e;F@o3  
nJ2l$J<  
axis([0 90 0 1]) !j7b7<wR  
j:{<    
grid on wiwJD}3h'  
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subplot(1,2,2); 5O)Z}  
9f BD.9A  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) t7)Y@gRy  
nc$
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legend('T_p','T_s','T_n') .@=d I  
U0)(k}Q)  
xlabel('\theta_i') ?\^u},HnE|  
5]'iSrp  
ylabel('Amplitude') &TC  
A$1pMG~as  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Qj3UO]>  
zxwpS  
axis([0 90 0 1]) 9';0vrFeM  
5Vut4px  
grid on ~ RTjcE  
n,xK7icYNQ  
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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%4R'  

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