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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 +mKII>{  
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1、光疏射向光密 *(/b{!~  
i \lr KA  
clear @&Yl'&pn-R  
%){/O}I]>  
close all ?h#F& y  
!@ AnwV]  
n1=1,n2=1.45; t0:~BYXu  
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theta=0:0.1:90; iQCs 8hIR  
QOJ5  
a=theta*pi/180; 2#UVpgX?  
P$clSJW  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); gMZrtK`<  
2U+Fa t@  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); y=SpIbn{  
}ri7@HCY4  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); _R ;$tG,  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); U}<zn+SI#V  
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figure(1) < r b5'  
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subplot(1,2,1); /B{c L`<  
4!'4 l=jO  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ukD:4s v  
y,<\d/YY@  
legend('r_p','r_s','|r_p|','|r_s|') hrfSe$8  
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xlabel('\theta_i') ?i~mt'O  
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ylabel('Amplitude') ^Ri ; vM  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) (|y@ ftr@  
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axis([0 90 -1 1]) 0{Zwg0&  
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grid on #CB`7 }jq  
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subplot(1,2,2); dW|S\S'&  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) r"KW\HN8  
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legend('t_p','t_s','|t_p|','|t_s|') DpL|aRdbK  
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xlabel('\theta_i') emS7q|^  
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ylabel('Amplitude') j5 W)9HW:  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) z }P1+Pm  
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axis([0 90 0 1]) }/%^;@q;  
8d>>r69$pa  
grid on `g(r.`t^  
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Rp=abs(rp).^2; gBy7 q09r  
X]Ma:1+  
Rs=abs(rs).^2; *U|2u+| F  
a0B,[i  
Rn=(Rp+Rs)/2; _^] :tL6  
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Tp=1-Rp; J|WkPv2  
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Ts=1-Rs; /2]=.bLwz  
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Tn=(Tp+Ts)/2; Z<[f81hE&  
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figure(2) tt]ZGn*  
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subplot(1,2,1); qMmhmH)Gp  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) jb!15Vlt"  
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legend('R_p','R_s','R_n') h#I]gHQK  
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xlabel('\theta_i') |gJI}"T  
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ylabel('Amplitude') Kd^,NAg  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /m+\oZ ]d  
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axis([0 90 0 1]) `1U?^9Nf  
sT%^W  
grid on $@4(Lq1.  
~z*A%vp6ER  
subplot(1,2,2); W .bJ.hO*  
.VfBwTh7q8  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) pe7R1{2Q_s  
#~@Cl9[)D  
legend('T_p','T_s','T_n') *lws7R  
b:>t1S Ul  
xlabel('\theta_i') %:7fAB,PA  
q.g0Oz@ z  
ylabel('Amplitude') D= LLm$y  
4?cIn4}  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) !S}4b   
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axis([0 90 0 1]) |c5r&oM&m  
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grid on Z{J{6j  
uS,XQy2  
[attachment=80479] p$OkWSi~  
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[attachment=80478] O!#bM< *  
200833 2017-11-26 22:36
2、光密射向光疏 (*\*7dIo  
bB`p-1  
clear fu6Ir,  
n%Gk {h5  
close all Y< drRK!  
l^*'W(%  
n1=1.45,n2=1; ?#rejA:  
3BWYSJ|  
theta=0:0.1:90; D 4fHNk)kZ  
.gK>O2hI  
a=theta*pi/180; uzpW0(_i3a  
lYt|C^  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 9 EqU 2~  
BYBf`F)4  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); +Tug.[A  
g1TMyIUt[  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); b/eJEL  
M@b:~mI[sw  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2));  UX& ?^]  
cK(S{|F  
figure(1) I"<ACM  
*[^[!'kT&  
subplot(1,2,1); > R5<D'cEN  
orcPKCz|"  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) i{ " g 7  
(s2ke  
legend('r_p','r_s','|r_p|','|r_s|') N-O"y3W}  
?UGA-^E1  
xlabel('\theta_i') B5iVT<:a  
{!`0i  
ylabel('Amplitude') 3RyB 0 n  
R!8qkG  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9nrH 6]  
~Kr_[X:d5  
axis([0 90 -1.5 1.5]) t kJw}W1@  
nA#FGfZ{Ge  
grid on wNX2*   
n%J {Tcn6  
subplot(1,2,2); W"a%IO%'  
'4""Gz  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) KiDL]2  
(` N@4w=  
legend('t_p','t_s','|t_p|','|t_s|') L93&.d@m9  
Jbrjt/OG#I  
xlabel('\theta_i') uGxh}'&  
u\9t+wi}<  
ylabel('Amplitude') 6ofi8( n[  
Y%B:IeF}  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) AD ,  
?7Y6: zo$^  
axis([0 90 -0.5 3]) b;X|[tB  
CE'd`_;HLn  
grid on hrRkam !y  
AP8YY8,  
Rp=abs(rp).^2; X{j`H\'L  
,'E+f%  
Rs=abs(rs).^2; ]26 Q*.1~  
,o3{?o]s  
Rn=(Rp+Rs)/2; 9 ^G. ]W]  
;c!}'2>vM  
Tp=1-Rp; GRt1]%l#$  
;ORT#7CU  
Ts=1-Rs; /i${[1  
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Tn=(Tp+Ts)/2; gg-4ce/  
,'KQFC   
figure(2) t=IpV l!  
a=m7pe ^  
subplot(1,2,1); zuq7 x7  
ws tH&^  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2)  m,,FNYW  
 yO7xAb  
legend('R_p','R_s','R_n') jI-\~  
'_n J DM  
xlabel('\theta_i') phT|w H  
9&>)4HNd?  
ylabel('Amplitude') 2Op\`Ht &  
1Rrl59}5  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &g{b5x{iD  
-t<8)9q(  
axis([0 90 0 1]) A1mxM5N  
:KJG3j?   
grid on ^X&n-ui   
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subplot(1,2,2); C1/<t)^  
((2 g  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) qM."W=XVN  
px!TRb f  
legend('T_p','T_s','T_n') HW{si]~q  
C Rd1zDB  
xlabel('\theta_i') A[/_}bI|  
X"S-f; b#  
ylabel('Amplitude') _o 2pyV&  
\Kx@?,  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9WJS.\G^  
(Hr_gkGtM  
axis([0 90 0 1]) AjTkQ)  
-R~!N#y  
grid on lHV&8fny  
h\jV@g$  
[attachment=80481] $yZ(c#L  
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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 PT9,R^2T!  
jabil 2025-03-07 09:40
Thanks
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