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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 mtv8Bm=<  
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1、光疏射向光密 Kn~Rck| ]  
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clear 1.!U{>$  
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close all (P)G|2=  
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n1=1,n2=1.45; |GnTRahV.  
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theta=0:0.1:90; BNK]Os  
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a=theta*pi/180; 5Ml=<^  
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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)); !?>V^#c  
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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)); h+ [6i{  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); WBE>0L  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); E^i]eK*"  
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figure(1) y+(\:;y$7  
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subplot(1,2,1); sT\:**  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) T`EV uRJ  
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legend('r_p','r_s','|r_p|','|r_s|') vQEV,d1  
7PY$=L48A  
xlabel('\theta_i') <sH}X$/  
3$\k=q3`#  
ylabel('Amplitude') Pv'Q3O2<I  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) X NJ4T]><  
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axis([0 90 -1 1]) eTuqK23  
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grid on ZL!u$)(V  
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subplot(1,2,2); Q7s@,c!m_  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ~ nsb  
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legend('t_p','t_s','|t_p|','|t_s|') 0xB2  
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xlabel('\theta_i') =gB5JB<}2  
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ylabel('Amplitude') hS]w A"\87  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) xVm-4gB  
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axis([0 90 0 1]) A]z*#+Sl  
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grid on O`5,L[i1y  
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Rp=abs(rp).^2; <)VgGjZ-H  
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Rs=abs(rs).^2; tb3V qFx  
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Rn=(Rp+Rs)/2; 8|a./%gixs  
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Tp=1-Rp; ScPVjqG2{  
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Ts=1-Rs; 2{OR#v~  
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Tn=(Tp+Ts)/2; `Fy-"Uf  
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figure(2) ^J'_CA  
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subplot(1,2,1); :KLXrr  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Jup)m/  
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legend('R_p','R_s','R_n') G.W !   
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xlabel('\theta_i') 9njwAKF?  
kx"1 0Vw  
ylabel('Amplitude') hx;f/E Px  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #~u0R>=  
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axis([0 90 0 1]) aB9!}3@  
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grid on n<I{x^!  
UtZ,q!sg  
subplot(1,2,2); zZ5:)YiW-  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) g)D_  !iz  
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legend('T_p','T_s','T_n') _VtQMg|u  
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xlabel('\theta_i') C8N)!5(A  
!rvEo =^  
ylabel('Amplitude') )Fw/Cu  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) qWt}8_"  
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axis([0 90 0 1]) xmW~R*^  
.g*j]!_]  
grid on @f!X%)\;x  
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200833 2017-11-26 22:36
2、光密射向光疏 !40>LpL[  
~Bd=]a$mj  
clear ~%TWF+  
VJh8`PVX  
close all 4zug9kFK  
U)S=JT~h  
n1=1.45,n2=1; <Au2e  
Wboh2:TH:  
theta=0:0.1:90; 2iAC_"n  
DL]tg [w{  
a=theta*pi/180; JTlk[ c  
=W(*0"RM  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); yU$ MB,1  
gT+/nSrLV  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ?GhyVXS y.  
$Y$9]G":  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); vDy&sgS$<  
_;<!8e$C  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ==[,;g x  
uOxHa>h  
figure(1) 1GY2aZ@  
J 3!~e+wn  
subplot(1,2,1); *[Hrbln  
XQ}Zr/f6  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) S{Y zHK  
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legend('r_p','r_s','|r_p|','|r_s|') _n&Nw7d2 M  
3} A$+PX  
xlabel('\theta_i') K*6"c.D  
7  ,Rg~L  
ylabel('Amplitude') ~%{2Z_t$  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) WJ7|0qb  
Bd>~F7VWs  
axis([0 90 -1.5 1.5]) {(73*-~$  
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grid on 8h )XULs2  
'\Xkvi  
subplot(1,2,2); 1Pf(.&/9_  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 1MelHW  
t=_^$M,yr  
legend('t_p','t_s','|t_p|','|t_s|') Qm%F]nyy  
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xlabel('\theta_i') *zfgO pK  
P rt} 01$  
ylabel('Amplitude') UD I{4+z  
x)5}:b1B=  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5/H,UL  
f^c+M~\JKj  
axis([0 90 -0.5 3]) qA*~B'  
A_9WSXR  
grid on \1EuHQ?  
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Rp=abs(rp).^2; a6p0_-MF  
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Rs=abs(rs).^2; qHtQ4_Zn;  
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Rn=(Rp+Rs)/2; +z >)'#  
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Tp=1-Rp; ZsGvv]P  
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Ts=1-Rs; 'uPAG;)m  
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Tn=(Tp+Ts)/2; q*!R4yE;C  
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figure(2) _0H oJ  
Z~'t'.=z  
subplot(1,2,1); _k84#E0  
U>5^:%3  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) c{#2;k Q,  
H R>Y?B{  
legend('R_p','R_s','R_n') rb?7i&-  
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xlabel('\theta_i') .ZXoRT  
3bEcKA_z(  
ylabel('Amplitude') ~uQ*u.wi  
7vRtTP  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]>3Y~KH(  
V&mkS  
axis([0 90 0 1]) yR[6s#F/h  
1v@#b@NXM7  
grid on xJq|,":gj  
8NN+Z<  
subplot(1,2,2); z 4u&#.bU  
S zo'[/ [R  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2)  F/Goq`  
}1a}pm2p  
legend('T_p','T_s','T_n') /ViY:-8s  
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xlabel('\theta_i') 4,RPidv%O  
#~0Nk6*u  
ylabel('Amplitude') *P mZqe  
i'Y8-})  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Q_mphW:[  
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axis([0 90 0 1]) ;hj lRQ\  
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grid on E@}F^0c  
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[attachment=80481] F:j@JMpQ  
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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 MQ,K%_m8  
jabil 2025-03-07 09:40
Thanks
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