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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 -5l6&Y   
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1、光疏射向光密 .9[45][FK  
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clear $4FX(O0Q@  
j9+I0>#X  
close all xda; K~w  
p{)5k  
n1=1,n2=1.45; /.Nov  
?YM4b5!3T  
theta=0:0.1:90; nP~({ :l8X  
RR;AJ8wd  
a=theta*pi/180; w@\vHH.;V  
!}+tdT(y  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); n(nBRCG)o  
5l-mW0,MK  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); )py{\r9X  
}ov&.,vQ  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); q-ES6R  
RE$`YCs5  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); lOwS&4UT  
R =Ws#'  
figure(1) g$:Xuw1  
JPM))4YDR  
subplot(1,2,1); }{9&:!uA  
[[~w0G~1  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) V}o n|A  
2O"P2(1}v  
legend('r_p','r_s','|r_p|','|r_s|') Do%-B1{ri  
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xlabel('\theta_i') %ows BO+  
IPSF]"}~  
ylabel('Amplitude') j/T>2|dA&  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 2jsw"aHW  
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axis([0 90 -1 1]) gG%V 9eOQ  
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grid on "N:XzG  
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subplot(1,2,2); K-<^ $VWh  
(C] SH\  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) AB Xl  
!|q<E0@w\  
legend('t_p','t_s','|t_p|','|t_s|') zOEY6lAwI  
SjjIr ^  
xlabel('\theta_i') 1pv}]&X  
%u^ JpC{E  
ylabel('Amplitude') MC((M,3L  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)])  rdnno  
jJ4qR:]  
axis([0 90 0 1]) D9mz9  
Ed0IWPx  
grid on \7MHaQvS   
&AuF]VT  
Rp=abs(rp).^2; =&0wr6  
5G0 $  
Rs=abs(rs).^2; 04%S+y.6&Y  
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Rn=(Rp+Rs)/2; rPc7(,o*  
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Tp=1-Rp; /MB{Pmk$R  
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Ts=1-Rs; MRr</o  
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Tn=(Tp+Ts)/2; #>Y'sd5'A  
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figure(2) M L7 \BT  
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subplot(1,2,1); 04J}UE]Ww  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) T,fI BD:  
(qn2xrV  
legend('R_p','R_s','R_n') 9p 4"r^  
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xlabel('\theta_i') d_S*#/k  
~9F,%  
ylabel('Amplitude') s{ V*1$e~  
wn>edn  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) !@u>A_  
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axis([0 90 0 1]) E6Rz@"^XV  
(F7_S*  
grid on IdIrI  
p <eC<dtu  
subplot(1,2,2); 41#w|L \  
Mh(]3\  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) k~%<Ir1V]  
t3Z_Dp~\  
legend('T_p','T_s','T_n') nI*/Mhx  
wn Y$fT9  
xlabel('\theta_i') g u)=wu0  
, "jbq~  
ylabel('Amplitude') *?QE2&S:  
lcON+j  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) MyJ4><oG  
rQ4*k'lA:  
axis([0 90 0 1]) rzrl>9 h  
9[v1h,L  
grid on `=#01YX[0  
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200833 2017-11-26 22:36
2、光密射向光疏 W$dn_9W  
PI A)d-Z  
clear F Kc;W  
2y0J`!/)  
close all y`e4;*1  
l=`L7| ^/d  
n1=1.45,n2=1; Kzy/9  
e{({|V '  
theta=0:0.1:90; ^/wfXm  
tC8(XMVx  
a=theta*pi/180; ,O1O8TwUB0  
F} J-gZl  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Uu6L~iB  
LL!.c  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); QH4wUU3X  
z2ms^Y=j  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 8pLBt:  
C2]Kc{4  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); +i `*lBup$  
8$xPex~2  
figure(1) 50j OA#l[  
W [[oSqp  
subplot(1,2,1); K*K1(_x=  
+]>+a<x*%  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ZZ/cq:3$P  
;S$Ll*f>D  
legend('r_p','r_s','|r_p|','|r_s|') 9L%I<5i  
z;]CmR@Ki  
xlabel('\theta_i') >Sk[vI0Y  
n9LGP2#!  
ylabel('Amplitude') m!XI{F@x  
@ \.;b9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ;N+$2w  
TL= YQA  
axis([0 90 -1.5 1.5]) sfp,Lq`  
G" b60RQ  
grid on UbJ*'eoX  
Ue5O9;y]u  
subplot(1,2,2); m:tiY [c>W  
l2v_?j-)x  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Q+|{Bs)6i1  
J}spiVM  
legend('t_p','t_s','|t_p|','|t_s|') 5G}6;UY  
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xlabel('\theta_i') 7&}P{<}o^  
h4&;?T S  
ylabel('Amplitude') c"YXxA J  
-ML6d&cm  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &Y|Xd4:  
#~:P}<h  
axis([0 90 -0.5 3]) n[xkSF^)  
xIbMs4'iEx  
grid on ClW'W#*(Y  
6@;ha=[+  
Rp=abs(rp).^2; F SMj  
jX=lAs~6  
Rs=abs(rs).^2; 4C_c\;d  
qcB){p+UQ  
Rn=(Rp+Rs)/2; =?}twC$  
)9"oL!2h  
Tp=1-Rp; U SOKDDm  
S[M4ukYK  
Ts=1-Rs; 8"'x)y  
UP1?5Q=H]Q  
Tn=(Tp+Ts)/2; d<p2/aA  
hP?fMW$V  
figure(2) F:FMeg  
 aA*9,  
subplot(1,2,1); >.9eBz@  
c|p,/L09L  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) uq7T{7~<  
}amU[U,  
legend('R_p','R_s','R_n') #5CI)4x0!  
JV"NZvjN7d  
xlabel('\theta_i') 4z4v\IpB  
M.%shrJ/  
ylabel('Amplitude') >mu)/kl  
_"f  :`  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) N$aZ== $5  
R|,7d:k  
axis([0 90 0 1]) .:1qK<vz  
64oxjF)  
grid on <zB*'m  
Y)HbxFF`/  
subplot(1,2,2); x/TGp?\g  
w8M2N]&:  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) q|#MB7e/  
_+QwREP  
legend('T_p','T_s','T_n') E{^^^"z P  
IhonnLLW  
xlabel('\theta_i') GG-[`!>.pw  
z_SagU,\  
ylabel('Amplitude') >Wi s.e%b  
zhEo(kU!  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 0Oxz3r%}r  
~t/JCxa  
axis([0 90 0 1]) ?X_V#8JK  
," R>}kPli  
grid on Lyoor1   
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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 \{>eOD_  
jabil 2025-03-07 09:40
Thanks
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