[分享]利用MATLAB光学仿真（1） [复制链接]

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 +L]$M)*0&  
6m\MYay  
1、光疏射向光密 4Y>J,c  
)-u0n],  
clear yu~o9  
Q4[^JQsR2  
close all 4g%BCGsys  
d%EUr9~?  
n1=1,n2=1.45; T'K6Q cu  
)tD[Ffvr  
theta=0:0.1:90; q!OB?0
3n  
XMLJX~  
a=theta*pi/180; oPbxe  
y$Y*%D^w  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Twi7g3}/jB  
$Ith8p~  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); &yabxl_  
Ld9YbL:  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Hf#VW^  
J}{a&3@Hm  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 2C&G'@>  
Nr(t5TP^  
figure(1) h,palP6^  
jMAZ4M  
subplot(1,2,1); X9S`#N  
rYP72<   
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) *Bm7>g6  
<aPbKDF~V  
legend('r_p','r_s','|r_p|','|r_s|') ElK7jWJ+  
gx55.}  
xlabel('\theta_i') ^DQp9$la  
:ot^bAyt|  
ylabel('Amplitude') K!cLEG!G  
qx;8Hq(E[  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) xis],.N  
]E:K8E  
axis([0 90 -1 1]) :MFF*1  
5dNM:1VoE  
grid on o]jPG  
cN&]JS,  
subplot(1,2,2); >Hd0l L  
"N*bV  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) n{1;BW#H  
ih[!v"bv  
legend('t_p','t_s','|t_p|','|t_s|') Mnx')([;W  
 L#>^R   
xlabel('\theta_i') 6A;,Ph2  
{}A1[Y|  
ylabel('Amplitude') xaw)iC[gI{  
hUo}n>Aa  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5Kw$QJ/  
NE1n9  
axis([0 90 0 1]) q[ -YXO  
oj'a%mx  
grid on <} BuU!  
uA]!y{"}J  
Rp=abs(rp).^2; IBn+42V  
O`rKxP  
Rs=abs(rs).^2; Q&k1' nT5  
;NJx9)7<  
Rn=(Rp+Rs)/2; {Y7dE?!`7  
sPxDo?1x-  
Tp=1-Rp; ^8q(_#w`K  
9
!u&8#i  
Ts=1-Rs; # ^q87y  
y~Ts9AE  
Tn=(Tp+Ts)/2; B_3:.1>"BM  
'&+5L.  
figure(2) 'lIj89h<E  
E/:mO~1< c  
subplot(1,2,1); Q8GI;`Rb  
n8RE  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Q?xCb
 
iU1yJ=  
legend('R_p','R_s','R_n') ]K!NLvz  
\ y}!yr
Q  
xlabel('\theta_i') \nbGdka  
0tS< /G8  
ylabel('Amplitude') Z.$)#vM5  
] i:WP2  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) y8e'weK  
wOLA8UYW  
axis([0 90 0 1]) l6~wm1vO  
~C31=\$  
grid on Zjq(]y  
g=)OcTd#  
subplot(1,2,2); h( V:-D  
CxbGL  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) HD~o]l=H  
dVKctt'C  
legend('T_p','T_s','T_n') BTAt9Z8qK  
cME|Lg(J$  
xlabel('\theta_i') sogdM{tz\  
Bid+,,  
ylabel('Amplitude') hYSzr-)  
#e*jP&1S  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3bBCA9^se  
$)v`roDD.  
axis([0 90 0 1]) {W11+L{8  
,
>Yl(=&  
grid on 2AdO   
'wT !X[jF  
I3^}$#>  
!eP)"YWI3  
H-C$Jy)f"  

2、光密射向光疏 E]c0+rh~  
YwU[kr-i  
clear r~YxtBZH+  
ep)O|_=  
close all oXFo  
SSn{,H8/j  
n1=1.45,n2=1; KbGz3O'u  
OVUJiBp  
theta=0:0.1:90; F&u)wI'  
k{C03=xk  
a=theta*pi/180; n%K^G4k^  
L]Dq1q8`  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); e5$S2o~JF  
]Ei*I}  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 3XSfXS{lwP  
&HB!6T/  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5*\]F}  
3,^.  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); HB*H%>L{"B  
YLv5[pV  
figure(1) ^^T xx  
&2sfu0K  
subplot(1,2,1); 7-VP)|L#G  
N1yx|g:  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2)
b_w(F_0  
k*K.ZS688  
legend('r_p','r_s','|r_p|','|r_s|') h|%a}])G)  
-8Q}*Z  
xlabel('\theta_i') k"F\4M  
trz&]v=:  
ylabel('Amplitude') x(7Q5Uk\  
vw6DHN
)k  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) qGdoRrp0Ov  
#c$z&J7e  
axis([0 90 -1.5 1.5]) 8}K4M(  
|ngv{g  
grid on D}~uxw;[^  
5pH6]$  
subplot(1,2,2); V*gh"gZ<  
&3f^]n!@  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) _6.Y3+7I  
I~Q G  
legend('t_p','t_s','|t_p|','|t_s|') 2= zw!  
%[x
PyqX  
xlabel('\theta_i') & ^;3S*p  
3
c+ps;nh  
ylabel('Amplitude') gMsB1|  
TjS
&V  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >';UF;\5]Q  
ttA'RJ  
axis([0 90 -0.5 3]) ]cM,m2^2  
H,EGB8E2  
grid on ^{a_:r"  
C."\ a_p  
Rp=abs(rp).^2; g\1|<jb3  
-5Oy k,  
Rs=abs(rs).^2; CU@}{}Yl  
Gq-~zmg  
Rn=(Rp+Rs)/2; .l$U:d  
&l0,q=T  
Tp=1-Rp; H'}6Mw%ra  
Y)2#\ F  
Ts=1-Rs; Sq]QRI/  
-I[KIeF  
Tn=(Tp+Ts)/2; "R]wPF5u  
nh+Hwj#(x  
figure(2) dP?QPk
y{9  
_R}yZ=di  
subplot(1,2,1); (0["|h32,  
0ax
;Q[z2  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) JnLF61   
bnZ H  
legend('R_p','R_s','R_n') \. a7
F4h  
BS3{TGn  
xlabel('\theta_i') !8&EkXTw,  
F+!9T  
ylabel('Amplitude') U|Uc|6  
w+$~ds  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 9.BgsV .  
TE6]4E*  
axis([0 90 0 1]) +F*h\4ry#  
u.Tknw-X  
grid on ]f>0P3O5&  
M(vX.kF  
subplot(1,2,2); gYBMi)`RT  
[\rzXE  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) AdRp{^w  
:!JQ<kV  
legend('T_p','T_s','T_n') B!U;a=ia  
$\q.Zb  
xlabel('\theta_i') mpQu:i|W  
_9'hmej  
ylabel('Amplitude') ^!z(IE'  
pj$kSS|m6-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) aYM~Ub:x{  
,(&Fb~r]  
axis([0 90 0 1]) <[K3Prf C  
wVs"+4l<  
grid on A4(k<<xjE  
l,Fn_zO  
q]U!n  
}R/we`  

感谢楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

谢谢了楼主分享

thanks

谢谢了楼主分享

学习学习

学习学习 \q4r/SbgW  

Thanks