[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 7)1%Z{Dy  
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1、光疏射向光密 v!DK.PZbi  
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clear A'uaR?  
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close all THX% z `  
5M9o(Z\AF  
n1=1,n2=1.45; YahW%mv`d  
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theta=0:0.1:90; OAFxf,b  
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a=theta*pi/180; Il>o60u1  
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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)); =Ez@kTvOs  
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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)); ~iiDy;"  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); v9,cL.0&  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); _,v?rFLE  
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figure(1) YMNLn9  
FIAmAZH}_  
subplot(1,2,1); @*L-lx  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ToKG;Ff4b  
o(> #}[N}  
legend('r_p','r_s','|r_p|','|r_s|') ?IS[2 v$  
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xlabel('\theta_i') #H |p)2k  
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ylabel('Amplitude') :5&UWL|  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) I*JJvqh
  
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axis([0 90 -1 1]) -$#2?/uqC  
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grid on EBk-qd a}  
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subplot(1,2,2); 50A\Y)i_mZ  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) l O*  
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legend('t_p','t_s','|t_p|','|t_s|') W?!rqo2SP  
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xlabel('\theta_i') wL]#]DiE  
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ylabel('Amplitude') 5A5t
 
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) lfd-!(tXD  
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axis([0 90 0 1]) i|,}y`C#  
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grid on P|lDW|}D@  
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Rp=abs(rp).^2; .!lLj1?p  
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Rs=abs(rs).^2; 1=9GV+`n  
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Rn=(Rp+Rs)/2; cH:&S=>h  
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Tp=1-Rp; ]mNsG0r6  
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Ts=1-Rs; x;} 25A|  
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Tn=(Tp+Ts)/2; 1gt 7My  
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figure(2) 8:*ZuR|~  
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subplot(1,2,1); &%)F5PT  
#D?w,<_8,  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) :9x]5;ma  
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legend('R_p','R_s','R_n') n;vZY  
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xlabel('\theta_i') 1P'L<z  
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ylabel('Amplitude') y@2"[fo3~  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +7 j/.R  
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axis([0 90 0 1]) w~pe?j_F$  
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grid on Vu4LC&q  
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subplot(1,2,2); EKN<KnU%  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 'gD./|Z0  
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legend('T_p','T_s','T_n') jeA2yjAC  
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xlabel('\theta_i') #SI]^T|  
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ylabel('Amplitude') 1~2+w]-kU  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5 /oW/2"  
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axis([0 90 0 1]) "fSaM&@[B  
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grid on k!$$ *a*  
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2、光密射向光疏 3Y +;8ld  
A5%Now;.cf  
clear ":=h1AJY  
mT|r:Yr:  
close all y0) mBCX  
+J A\by  
n1=1.45,n2=1; UxMei  
H3iYE~^#  
theta=0:0.1:90; XGYsTquSe  
oGbh*  
a=theta*pi/180; fmLDufx  
wLE|J9t%Ea  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); !V4(- 8  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Ar_Yl
|a  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); W+s3rS2  
L$,Kdpj  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 889^P`Q5  
5;XU6Rz!  
figure(1) c7tO'`q$e  
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subplot(1,2,1); N>sHT =_  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) }<'ki ;  
lX50JJwk  
legend('r_p','r_s','|r_p|','|r_s|') IkGM~3e  
oIE3`\xS  
xlabel('\theta_i') *W 04$N  
mWLiXKnb  
ylabel('Amplitude') g]?>6 %#rA  
k@>(sXs  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) l Yj$3  
XN3'k[  
axis([0 90 -1.5 1.5]) {9Q**U`w  
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grid on HA&hu/mw_  
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subplot(1,2,2); yU~wZjw  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) #.,LWL]  
N~?#Qh|ZnU  
legend('t_p','t_s','|t_p|','|t_s|') YWk+}y}^d  
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xlabel('\theta_i') ScT{Tb]9bt  
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ylabel('Amplitude') br?pfs$U  
1k$5'^]^9]  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ClPE_Cfw~  
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axis([0 90 -0.5 3]) C_h$$G{S(  
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grid on X
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Rp=abs(rp).^2; $B]_^  
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Rs=abs(rs).^2; -V'Y
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Rn=(Rp+Rs)/2; eK\i={va  
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Tp=1-Rp;  |vBy=:  
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Ts=1-Rs; !_iv~Q zv  
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Tn=(Tp+Ts)/2; ?ihRt+eR~  
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figure(2) J)H*tzg  
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subplot(1,2,1); gBXoEn]
 
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ]#'&x%m  
py%:,hi  
legend('R_p','R_s','R_n') xd+aO=)Td  
Xhpcu1nA  
xlabel('\theta_i') B~YOU3  
n3\~H9  
ylabel('Amplitude') 3/,}&SX  
m mH xPd  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $OzVo&P;  
jK{qw  
axis([0 90 0 1]) 7GJcg7s*T  
4(`U]dNcs  
grid on jq_ i&~S  
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subplot(1,2,2); Z~;rp`P  
rG%8ugap  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) .OlPVMFt  
\ #la8,+9  
legend('T_p','T_s','T_n') c1 j@*6B  
}V 4u`=  
xlabel('\theta_i') 1c*;Lr.K  
4)p ID`  
ylabel('Amplitude') R}D[ z7  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /^WOrMR  
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axis([0 90 0 1]) ^W~8)Rbf  
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grid on PE?ICou  
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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

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谢谢了楼主分享

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