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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 vm y?8E6+  
fI([vI  
1、光疏射向光密 WzwH;!  
@ppT;9<d  
clear 3w -0IP]<  
2iJ)K rw  
close all |)vC^=N{+  
dvl'Sq<  
n1=1,n2=1.45; 9h$08l  
(ndTEnpp  
theta=0:0.1:90; Jiv%Opo/|  
[m9Iz!E  
a=theta*pi/180; <HC5YA)4  
|\W9$V  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); yD-L:)@"  
-J<{NF  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); p]-\\o}  
,sqx xq  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [$<\*d/  
~5Cid)Q}@o  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); i6Kcj  
CC8)yO  
figure(1) dpPu&m+  
Tt.#O~2:9  
subplot(1,2,1); Z@G[\"  
\[57Dmo  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) _,?<r&>v6  
Q2L>P<87T  
legend('r_p','r_s','|r_p|','|r_s|') H`:2J8   
,3As Ng  
xlabel('\theta_i') Duu)8ru  
8`{)1.d5[  
ylabel('Amplitude') ?E*;fDEC  
Pd"=&Az|  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Ddr.kXIpo  
Us.")GiHE  
axis([0 90 -1 1]) w I7iE4\vz  
QQPT=_P]  
grid on C2[* $ 1U  
I+4#LR3;  
subplot(1,2,2); vo]!IY  
WE*L=_zDS  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 6` 8H k;  
~fV\ X*  
legend('t_p','t_s','|t_p|','|t_s|') >OLKaghV.5  
P"%QFt,  
xlabel('\theta_i') E0s|eA&  
hT0[O  
ylabel('Amplitude') =1vl-*uYh  
r+D ?_Lk  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) zarxv| }$  
Ki,SFww8r  
axis([0 90 0 1]) Y_gMoo  
vR)f'+_Nz  
grid on 3b d(.he2u  
0'QX*xfa>  
Rp=abs(rp).^2; GI[TD?s  
9Ev<t \B  
Rs=abs(rs).^2; v><c@a=[  
@|2L>N  
Rn=(Rp+Rs)/2; p|gzU$FWbk  
%tvP\(]h  
Tp=1-Rp; N*w6D:  
[qL{w&R  
Ts=1-Rs; kF@Z4MB}yr  
^xt@  
Tn=(Tp+Ts)/2; y v58~w*"  
k Xg&}n7  
figure(2) LJc"T)>$`  
-`8pahI  
subplot(1,2,1); '-l.2IUyT  
k',#T932x1  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 3n!f'" T  
=] +owl2  
legend('R_p','R_s','R_n') iCtDV5  
w!eY)p<  
xlabel('\theta_i') z|$M,?r'  
!0Mx Bem  
ylabel('Amplitude') +L,V_z  
JE *d-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =`KA@~XH4  
Uk'bOp  
axis([0 90 0 1]) DuMzK%  
ZamOYkRX  
grid on _m.w5nJ  
cFZcBiw  
subplot(1,2,2); &|K9qa~)Y  
5<>"d :9  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) II'"Nkxd  
fjd)/Gg  
legend('T_p','T_s','T_n') }|OwUdE!R9  
,gdud[&|;  
xlabel('\theta_i') I'E7mb<2  
2;w`W58  
ylabel('Amplitude') &e6!/y&  
[0n[\& 0  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |kGQ~:k+P  
dLfB){>S  
axis([0 90 0 1]) b]b+PK*h  
&"?S0S>r!  
grid on  &<LBz|  
l86gs6>  
[attachment=80479] bs&>QsI?j  
^~;"$=Wf  
[attachment=80478] ictV7)  
200833 2017-11-26 22:36
2、光密射向光疏 P?ms^   
0Lf4 ^9N  
clear lc$wjK[w[  
2e9.U/9  
close all WDi2m"  
PbnAY{J  
n1=1.45,n2=1; D&{CC  
@h9QfJ_f  
theta=0:0.1:90; }/lyrjV  
bd\%K`JQ{  
a=theta*pi/180; FP'-=zgc  
1,(WS F  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *XOLuPL>6)  
^ -4~pDv^  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); :8`~dj.  
N%F4ug@i   
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); X'88W-  
x5|^p=  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); +s;>@j()V  
7`f%?xVn0  
figure(1) ^I KT!"J&?  
UqD ]@s`  
subplot(1,2,1); 8iTB  
Z2t\4|wr:  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Ci4; e  
)$h!lAo  
legend('r_p','r_s','|r_p|','|r_s|') JOz4O  
=I aWf  
xlabel('\theta_i') la}cGZ; p.  
S1[, al  
ylabel('Amplitude') shR|  
d_Jj&:"l  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) snWe&-  
1F_$[iIX]  
axis([0 90 -1.5 1.5]) fTso[r:F.  
SpImd IpD  
grid on >(-A"jf  
:..WL;gC  
subplot(1,2,2); {-lpYD^k3  
'J$@~P  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) v[2&0&!K#  
I tb_ H  
legend('t_p','t_s','|t_p|','|t_s|') =P%&]5ts  
51u\am'T  
xlabel('\theta_i') +4  h!;i  
t.dr<  
ylabel('Amplitude') '$c9S[  
v<t?t<|J  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) M!kSt1  
DJ DQH\&  
axis([0 90 -0.5 3]) ?% [~J  
jo^c>ur  
grid on LP=y$B  
L$ i:~6  
Rp=abs(rp).^2; B]H8^  
WQ}wQ:]  
Rs=abs(rs).^2; Rpv[rvK'  
:EAh%q  
Rn=(Rp+Rs)/2; cS'{h  
j!w{  
Tp=1-Rp; haY]gmC  
+ c+i u6+"  
Ts=1-Rs; ]'"Sa<->  
s[sv4hq  
Tn=(Tp+Ts)/2; x+j@YWDpG"  
x1?mE)n]  
figure(2) w|6/i/X  
)A xD|A  
subplot(1,2,1); p_g`f9q6D  
BvsSrse  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 'Y#'ozSQv  
:SS \2  
legend('R_p','R_s','R_n') E]rXp~AZm  
+C8O"  
xlabel('\theta_i') Eamt_/LKf  
:09NZ !!  
ylabel('Amplitude') l'/`2Y1  
vUVFW'-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) FGx)?  
Z3weFbCH  
axis([0 90 0 1]) 6e rYjq  
;aV3j/  
grid on 9xO@_pkX  
@ <{%r  
subplot(1,2,2); kqm(D#  
DH yv^  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) |~e"i<G#  
,puoq {  
legend('T_p','T_s','T_n') W`_JERo  
-R]0cefC<f  
xlabel('\theta_i') A4!X{qUT-  
yAryw{(  
ylabel('Amplitude') N?ccG\t  
3fhY+$tq  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) {KNaJ/:>W  
J<;io!  
axis([0 90 0 1]) xy7A^7Li  
I09 W=  
grid on vt{[_L(h  
u"=]cBRWL6  
[attachment=80481] G;}WZy  
1hY|XZ%qd  
[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 Wk0E7Pr  
jabil 2025-03-07 09:40
Thanks
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