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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 0xH$!?{b  
2 0hE)!A  
1、光疏射向光密 >j\zj] -"  
#E*jX-JT  
clear G&:YgwG  
}Z2Y>raA\  
close all ^W'\8L  
0*h\/!e  
n1=1,n2=1.45; :#b[gWl0Ru  
8qt|2%  
theta=0:0.1:90; /&dC?bY  
nuXaZRH  
a=theta*pi/180; OHe<U8iu%  
p`XI(NI  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); u:fiil$  
O8n\>pkI  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); !MQo= k  
Y#C=ku  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 4l[f}Z  
;J2=6np  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); `P"-9Ue=  
3 u-j`7  
figure(1) /q(+r5k \  
yQ6{-:`)  
subplot(1,2,1); ]J m9D=  
8vc4J5  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) :6Bk<  
p4|:u[:&  
legend('r_p','r_s','|r_p|','|r_s|') ld`oIEj!P_  
Cv~t~  
xlabel('\theta_i') JFl@{6c  
rVFAwbR  
ylabel('Amplitude') e-\J!E'1F  
a)[tkjU  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]r6,^"  
WWH T;ST  
axis([0 90 -1 1]) f4]nz:2  
%e:VeP~  
grid on Vz51=?75  
!j( v-pQf"  
subplot(1,2,2); o+q4Vg9&  
fHR1ku y  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) h`?0=:Tru  
,$7LMTVDrE  
legend('t_p','t_s','|t_p|','|t_s|') {_KuztJGA  
~Og'IRf  
xlabel('\theta_i') *+lnAxRa?  
l,-smK69  
ylabel('Amplitude') UYGl  
XNd:x {  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |]Pigi7y-  
I)O%D3wfMW  
axis([0 90 0 1]) r]" >  
cSoZq4  
grid on B qKD+  
:.DCRs$Q  
Rp=abs(rp).^2; Y -7x**I  
: :e=6i  
Rs=abs(rs).^2; BDD^*Y  
JxNjyw  
Rn=(Rp+Rs)/2; qm@c[b  
eW0:&*.vMj  
Tp=1-Rp; j#<#o:If  
X}h{xl   
Ts=1-Rs; wF$8#=  
HOtays,#<}  
Tn=(Tp+Ts)/2; Bn}@wO  
^V_vpr]}P  
figure(2) <),FI <~  
fb&K.6"  
subplot(1,2,1); /M\S^ !g@  
w'?uJW  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ZsNUT4  
1!0BE8s"@  
legend('R_p','R_s','R_n') oIQor%z  
M I/ 9?B  
xlabel('\theta_i') >eWHPO  
^h4Q2Mv o  
ylabel('Amplitude') Xp4pN{he  
po\QMe  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) D9 ,~Fc  
9iUkvnphh  
axis([0 90 0 1]) k0{Mq<V*%  
V: 2|l!l*  
grid on +Y'(,J  
0waQw7 E  
subplot(1,2,2); uRxo,.}c  
&NB[:S =  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) xud =(HLl  
Q<wrO  
legend('T_p','T_s','T_n') V`G)8?%Vy  
<Mxy&9}ic  
xlabel('\theta_i') ]@C&Q,~q  
QEm6#y  
ylabel('Amplitude') Jd7+~isu~  
u4rGe!  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =Pd3SC})6V  
'\[GquK;P  
axis([0 90 0 1]) #q6jE  
Vj2]-]Cm  
grid on Ip|~j} }  
:BN qr[=b  
[attachment=80479] Fnzv&  
K.JKE"j)d  
[attachment=80478] ;Ze}i/l  
200833 2017-11-26 22:36
2、光密射向光疏 \h!%U*!7{  
#||^l_  
clear &l/2[>D%4  
N! }p  
close all kD8$ir'UYG  
Rr{mD#+  
n1=1.45,n2=1; ; {iX_%  
TMpV .iH  
theta=0:0.1:90; |k\4\a Lj  
'=Nb`n3%  
a=theta*pi/180; o:W>7~$jr=  
idPx! fe  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ;6KcX\g-  
ZX'q-JUv f  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); u!hY bCB  
O3/][\  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); HkVnTC  
^ a^bsKW  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); _kg<K D=P  
@a$_F3W  
figure(1) z6)b XL[f  
t~]n"zgovz  
subplot(1,2,1); `u$  Rd  
LeRyS]  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) R/ix,GC  
>HNBTc=~t  
legend('r_p','r_s','|r_p|','|r_s|') kl%%b"h'  
d9e_slx  
xlabel('\theta_i') 5.! OC5tO  
fIe';a  
ylabel('Amplitude') QOiPDu=8z  
iMjoa tt  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) PkX4 !  
6Cw+  
axis([0 90 -1.5 1.5]) PL} Wu=  
6<1 2j7  
grid on kZ<0|b  
IR JN  
subplot(1,2,2); & pHSX  
=jv3O.zq  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) e~oh%l^C72  
BOt1J_;(rO  
legend('t_p','t_s','|t_p|','|t_s|') 43wm_4C!H  
$40G$w  
xlabel('\theta_i') w'[JfMuP  
W(5XcP(  
ylabel('Amplitude') ly[j=vBV  
LV2#w_^I  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [}$jO,H5r  
A1Ru&fd!  
axis([0 90 -0.5 3]) M$u.lI  
|$|B0mj  
grid on &u`EYxT  
e5AZU7%.  
Rp=abs(rp).^2; E] 6]c!2:  
[]lMv ZW  
Rs=abs(rs).^2; o$QC:%[#  
*@I/TX'\rY  
Rn=(Rp+Rs)/2; !78P+i  
0Q7|2{  
Tp=1-Rp; 4A0v>G`E*#  
E3LEeXcLS  
Ts=1-Rs; DD5cUlOSu  
Tw,|ZA4XH  
Tn=(Tp+Ts)/2; l{I.l  
:F8h}\a*  
figure(2) 4wKQs&:  
|2E:]wT}qg  
subplot(1,2,1); HV&i! M@T  
Or#KF6+ut  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 82)%`$yZw[  
X2|&\G9c  
legend('R_p','R_s','R_n') +~>cAWZq_  
D GL=\  
xlabel('\theta_i') ;m=k FZ?  
nx(jYXVT  
ylabel('Amplitude') Quwq_.DU  
C|V5@O?;&  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) .,sbqL  
"/G] M&  
axis([0 90 0 1]) Q4Nut  
27i-B\r  
grid on "Lyb4#M  
xS(VgP&YGO  
subplot(1,2,2); bk0<i*ju7(  
ay =B<|!  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Scug wSB  
w`EC6ZN  
legend('T_p','T_s','T_n') 0dIGX |e  
\T[OF8yhW  
xlabel('\theta_i') <`WDNi$Y  
$VjMd f  
ylabel('Amplitude') _>a`dp.19  
WZn"I& Z  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }+}Cl T  
^?_MIS`4N  
axis([0 90 0 1]) S'`G7ht  
z}iz~WZ  
grid on M1]w0~G  
P^ht$)Y  
[attachment=80481] nltOX@P-  
\[|X^8j  
[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 ah(k!0PV  
jabil 2025-03-07 09:40
Thanks
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