[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 YuKg|<WO  
QK@[b3-h1  
1、光疏射向光密 /{*0 \`;  
VJ()sbl{k  
clear VVDd39q  
)lDmYt7me  
close all xJ|_R,>.H  
w4(g]9^Q  
n1=1,n2=1.45; qB8R4wCf  
xdkC>o4>  
theta=0:0.1:90; DRuG5|{I:  
e|S_B*1*0  
a=theta*pi/180; \9`76*X6 c  
9KGi%UIFvn  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); +/4wioGm  
R.$1aqA}  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ]c~W$h+F  
6Us*zKgW  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); r`5svY  
5!*@gn  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); RSK5 }2  
/7jb&f   
figure(1) ^M~Z_CQL2  
FoB^iA6e  
subplot(1,2,1); 8m"jd+  
vj hh4$k  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) &^1{x`Qo=  
>N8*O3  
legend('r_p','r_s','|r_p|','|r_s|') y';"tDFb  
}\3
jcnn  
xlabel('\theta_i') tiQeON-Q_  
:oO ?A
 
ylabel('Amplitude') c
yPJ(&;  
> xie+ ^  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Zj5B}[,l\  
]@A}
v\wa  
axis([0 90 -1 1])
crl"Ec  
q!4eVg*  
grid on ]mT2a8`c.r  
Td,s"p>Vq  
subplot(1,2,2); }C!g
x6  
/
lDei}  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) <tto8Y j  
l _gJC.  
legend('t_p','t_s','|t_p|','|t_s|') y ]D[JX[  
7-A/2/G<  
xlabel('\theta_i') W@FSQ8b>$m  
iph
}!
3f  
ylabel('Amplitude') (Qf. S{;  
I#PhzGC@  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _:7:ixN[Ie  
X;7hy0Y  
axis([0 90 0 1]) E_-QGE/1  
DVz_;m6)  
grid on pj#ls  
0S2/,[-u+  
Rp=abs(rp).^2; Q:U>nm>xA  
E4, J"T|@  
Rs=abs(rs).^2; XJe}^k  
Z]08gH  
Rn=(Rp+Rs)/2; Fxv5kho  
2Og<e|  
Tp=1-Rp; _o7t| pl~  

u\Y3h:@u  
Ts=1-Rs; $0XR<D  
\wF-[']N  
Tn=(Tp+Ts)/2; X.+|o@G  
`!Yd$=*c_&  
figure(2) <S3s==Cg  
7KL@[  
subplot(1,2,1); *-(8Z>9  
N;gY5;0m  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) E
hAaaG  
4 (XV)QR  
legend('R_p','R_s','R_n') PUmgcMt  
eY[kUMo  
xlabel('\theta_i') F-Bj  
9DdR"r'7  
ylabel('Amplitude') }#h`1 uV  
|u]IOw&1  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) *vzEfmN:d  
'0w</g  
axis([0 90 0 1]) 3~1Gts  
8]D0)  
grid on 83J63Xa  
1my1m  
subplot(1,2,2); $,zW0</P*l  
{gh<SZsE  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) +Fb+dU  
2Z>8ROv^X  
legend('T_p','T_s','T_n') S)?N6sz%  

0:`*xix  
xlabel('\theta_i') z69u
@
 
/cT6X]o8  
ylabel('Amplitude') ?dPr HSy  
Xdf4%/Op  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) c h}wXn  
!jvl"+_FV  
axis([0 90 0 1]) ST2:&xH(  
Z~F*$jn  
grid on SlG^ H  
Gt)ij?~  
/24}>oAH  
C]Y%dQh+a  
=R
<92v  

2、光密射向光疏 cUr!U\X[  
9)t[YE:U3!  
clear &Q#*Nnb3  
1$+8wDVwad  
close all *AP"[W  
684d&\(s  
n1=1.45,n2=1; *{P/3
yH  
G$2@N6  
theta=0:0.1:90; t|mK5aR4  
``eam8Az_U  
a=theta*pi/180; ;>L8&m)R5  
;rF[y7\  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); H>W8F2VT  
C fM[<w   
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 1=7ASS9  
;b:'i&r  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); D6H?*4f]  
R7U%v"F>`  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 9K#3JyW*  
-cijLlz%+  
figure(1) JXMH7  
EZN!3y|m  
subplot(1,2,1); %1$#fxR  
J8i,[,KcE  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ~\AF\n%  
%1:caa@_p  
legend('r_p','r_s','|r_p|','|r_s|') 3h:y[Vm#9y  
e0h[(3bXs$  
xlabel('\theta_i') A*wf: mW0c  
Mn/@?K?y  
ylabel('Amplitude') O$}.b=N9  
M2N8?Ycv3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~!!\#IX  
92t.@!m`  
axis([0 90 -1.5 1.5]) \hZ%NLj  
3F@P$4!#l  
grid on o{! :N>(  
]gg(Z!|iQ  
subplot(1,2,2); vXRY/Zzj1  
6o7t eX  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) /.<v,CR  
6[4VbIBSI  
legend('t_p','t_s','|t_p|','|t_s|') /KX+'@  
!{(Bc8 hT  
xlabel('\theta_i') Z#L4n#TT  
W.?/p~  
ylabel('Amplitude') 4k-A
k6s  
}ePl&-9T  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &=BzsBh  
WA"~6U*  
axis([0 90 -0.5 3])  L"%SU  
l"%80"zO  
grid on |:&6eDlR  
vM6W64S  
Rp=abs(rp).^2; cl2_"O  
M@{#yEP  
Rs=abs(rs).^2; N UX |  
U
]~@_j  
Rn=(Rp+Rs)/2; ]5c(:T F  
>#x[qX  
Tp=1-Rp; #YYJ4^":k  
HyU:BW;  
Ts=1-Rs; y'`/^>.  
V7Cnu:0_  
Tn=(Tp+Ts)/2; LCH\;07V#  
cQyN@W  
figure(2) .Mb[j1L^  
:86:U 0^  
subplot(1,2,1); 7>__ fQu  
, :#bo]3  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) {9U!0h-2"  
hj9TiH/+  
legend('R_p','R_s','R_n') #~|k EGt  
_(F-(X|  
xlabel('\theta_i') (Z(S
?`')  
z{ :;Rb  
ylabel('Amplitude') 3W%6n-*
u  
p>`rTaeZg  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) d"9tP& Q  
I[Lg0H8  
axis([0 90 0 1]) q[a\a7U z  
%S^hqC  
grid on &sWr)>vs  
heCM+=#~  
subplot(1,2,2); }q.D)'g_  
oQ<[`.s  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) *9EwZwE_K  
q>.7VN[ vE  
legend('T_p','T_s','T_n') #dWz,e3   
P_1WJ  
xlabel('\theta_i') 7Ed0BJTa  
xo_STLAw  
ylabel('Amplitude') "/aZ*mkjfJ  
6:#o0OeBP  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) T>& q8'lD  
cERIj0~  
axis([0 90 0 1]) m4hkV>$d  
@-!P1]V|  
grid on SN}K=)KF#  
xz8e1M  
)t|:_Z  
l/'GbuECm  

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 tsb[=W!Ar8  

Thanks