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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 =0s`4Y"+  
5&n988g C8  
1、光疏射向光密 $LxG>db  
2[8fFo>  
clear ,<;l"v(  
 +eDN,iv  
close all $vgmoJ@X0  
(5Z8zNH`3  
n1=1,n2=1.45; fz<|+(_>J  
>%n8W>^^4  
theta=0:0.1:90; j#LV7@H.e?  
q(ZB.  
a=theta*pi/180; F,L82N6\U  
1*!c X  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); zH=/.31Q  
`r~`N`o5A  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ]Efh(Gb]  
pjX%LsX\  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); E,*JPK-A x  
Q8;x9o@p  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); b[{m>Fa+o#  
r%Q8)nEo  
figure(1) .KiPNTh'  
R (tiIo  
subplot(1,2,1); -A~;MGY  
IL+#ynC  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) X \b}jo^96  
0%h [0jGj  
legend('r_p','r_s','|r_p|','|r_s|') ";-{ ~  
*tTP8ZCQ[  
xlabel('\theta_i') zK ' _e&*  
gD,YQ%aq  
ylabel('Amplitude') v{mv*`~nA\  
Q-! i$#-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ;_?zB NW  
k8InbX[  
axis([0 90 -1 1]) ys&"r":I  
}"%!(rx  
grid on %mK3N2N$  
['51FulDR  
subplot(1,2,2); RJtix uvh@  
4)z3X\u|Z2  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) jsk:fh0~M  
,GdxUld  
legend('t_p','t_s','|t_p|','|t_s|') l1-4n*fU  
U7nsMD  
xlabel('\theta_i') ~=`f]IL  
s0C?Bb}?  
ylabel('Amplitude') q=P f^Xp  
92P ,:2`a  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) SBCL1aM  
'sm[CNzS  
axis([0 90 0 1]) S`pF7[%rp  
ax-=n(   
grid on &_Cxv8  
+L`V[;  
Rp=abs(rp).^2; SjZd0H0  
Bl kSWW/  
Rs=abs(rs).^2; KW&nDu t  
/`7 IK  
Rn=(Rp+Rs)/2; T5 K-gz7A  
#@nZ4=/z  
Tp=1-Rp; W@:^aH  
^z[_U}N\}  
Ts=1-Rs; 7,pjej  
H/cs_i  
Tn=(Tp+Ts)/2; Q9` s_4  
Nhjle@J<  
figure(2) R19'| TJ  
::p-9F  
subplot(1,2,1); !d:tIu{)  
mBw2  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) @;||p eU  
bcq@N  
legend('R_p','R_s','R_n') .(`(chRa}  
X tJswxw`K  
xlabel('\theta_i') "F&Tnhh4  
6tOP}X  
ylabel('Amplitude') V8-4>H}Cb/  
Rb{+Ki  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) RM)1*l`!E  
+ckMT3  
axis([0 90 0 1]) @; W<dJ<X  
y' 2<qj  
grid on \U==f &G?J  
ILNE 4n  
subplot(1,2,2); PqTYAN&F  
#uQrJh1o8  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) OpYmTep#T\  
K3La9O)>  
legend('T_p','T_s','T_n') CoKiQUW  
DG_}9M!DW@  
xlabel('\theta_i') wG_4$kyj  
J09*v )L  
ylabel('Amplitude') g* %bzfk=|  
|__d 8a  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >r~0SMQr  
*zJD$+Fo  
axis([0 90 0 1]) b21}49bHN  
)m|C8[u  
grid on OdO{xG G@  
TLy ;4R2Nn  
[attachment=80479] Lt>?y& CcQ  
fv:L\N1u  
[attachment=80478]  }K?F7cD  
200833 2017-11-26 22:36
2、光密射向光疏 OE6#YT  
[qSQ#Qzi2i  
clear Pv#KmSA9  
I`lDWL  
close all Bhj:9%`  
4>l0V<  
n1=1.45,n2=1; =+`D  
D4d]3|/T  
theta=0:0.1:90; S45'j(S=  
/({P1ti:C  
a=theta*pi/180; sbzeY 1  
{d8^@UL  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); #&k8TY  
^Wf S\M`  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 8`a,D5U:  
T{ok +$w2  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); U8E0~[y'  
#0(fOHPQ  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); V):`&@  
4AJ9`1d4  
figure(1) `nKJR'QC  
$kv@tzO  
subplot(1,2,1); Q Qi@>v|d  
0Qt~K#mr/  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) bea|?lK  
T=.-Cl1A  
legend('r_p','r_s','|r_p|','|r_s|') 7$K}qsr<  
$]Jf0_  
xlabel('\theta_i') Ny]lvgu9X  
~bWhth2*  
ylabel('Amplitude') A3j"/eKi2  
k2pT1QZnt  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)])  $<:'!#%  
gbJG`zC>U  
axis([0 90 -1.5 1.5]) RTZ:U@  
Xt\Dy   
grid on whw{dfE  
GZ <nXU>  
subplot(1,2,2); XYMxG:  
RFB(d=o5S  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) IOX:yxj  
0Lx3]"v  
legend('t_p','t_s','|t_p|','|t_s|') %oR>Uo  
2!BsEvB(  
xlabel('\theta_i') }Iip+URG  
 UPR/XQ  
ylabel('Amplitude') b22LT52  
+3)[> {~1Z  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) CGkI\E  
eJW[ ]!  
axis([0 90 -0.5 3]) *l:&f_ngV  
1c / X  
grid on 9Eu #lV  
RN vQ  
Rp=abs(rp).^2; zs0hXxTY:  
v"/TmiZ  
Rs=abs(rs).^2; /e .D /;]  
=D}4X1l  
Rn=(Rp+Rs)/2; brfKd]i  
{!MVc<G.  
Tp=1-Rp; YQ+^  
YroNpu]s  
Ts=1-Rs; e+l\\9v  
m!0N"AjA  
Tn=(Tp+Ts)/2; Ajg\aof0{  
<$Ztik1  
figure(2) (2d3jQN`  
1g~y]iQ  
subplot(1,2,1); z|Ap\[GS  
R2CQXhiJ  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 95[wM6?J  
VjY<\WqbS  
legend('R_p','R_s','R_n') ljuNs@q  
l^ Rm0t_  
xlabel('\theta_i') z,avQR&  
:pb67Al29  
ylabel('Amplitude') ~o i)Lf1  
ODek%0=  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~GA8_B  
5N1}Ns  
axis([0 90 0 1]) p&\K9hfi  
Y+@g~TE  
grid on R5gado  
6e<^o H  
subplot(1,2,2); ><K!~pst}  
1|]xo3j"'  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ]x@~-I )  
gvGi %gq  
legend('T_p','T_s','T_n') _[F@1NJ  
8""mp]o9  
xlabel('\theta_i') Ok*Z  
VXwPdMy*L  
ylabel('Amplitude') <ZVZ$ZW~D  
#52NsVaT@  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) xHe^"LL  
~#q;bS  
axis([0 90 0 1]) M%|f+u&  
vtZ?X';wh  
grid on Y1WHy *s?  
UGCox-W"  
[attachment=80481] n]v7V&mj\  
wFb@1ae\  
[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 DEtf(lW_  
jabil 2025-03-07 09:40
Thanks
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