[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 .fhfb\$  
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1、光疏射向光密 =Ti@Y  
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clear Q9h=1G\K  
Csp$_uDi  
close all 0u&x%c  
ZZwIB3sNhf  
n1=1,n2=1.45; EAm31v C  
X2;72  
theta=0:0.1:90; ntB#2S  
BB9eQ: xO  
a=theta*pi/180; m8x?`Gw~jw  
R >SZE"  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); R.l
!KIq  
q4Bw5
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); {q+gm1iC  
4+nZ4a>LH?  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 1:- M<=J?f  
oOLA&N-A~  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); u rQvJ  
l+@k:IK  
figure(1) \6.dGKK  
[`E_/95  
subplot(1,2,1); l-20X{$m:  
-^t.eZ*|  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) hVT>HER  
e]ST0J"  
legend('r_p','r_s','|r_p|','|r_s|') I(3~BOUn_  
PY4a3dp U  
xlabel('\theta_i') L0H^S)g  
bF*Kb"!CF  
ylabel('Amplitude') sh0x<_  
O'^AbO=,  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) aO?KRn  
H8B.c%_|U  
axis([0 90 -1 1]) `mYp?NjR_  
a #s Nd  
grid on $AvaOI.l  
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subplot(1,2,2); OEzSItAI/[  
'4
3Uv  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) pNuU{:9 B0  
Wnp[8IEU  
legend('t_p','t_s','|t_p|','|t_s|') 4AvIU!0w  
0R+p\Nc&1  
xlabel('\theta_i') E5|GP  
qh&KNJ>1  
ylabel('Amplitude') !Q%r4Nr  
CN-4FI)1D9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ;[g~h |{6  
N!v>2"x8q  
axis([0 90 0 1]) +]yVSns 3  
[xGL0Z%)t  
grid on Z$m&F0g  
_U*1D*kLI[  
Rp=abs(rp).^2; DAtAc(05)  
&Q\k`0vzVB  
Rs=abs(rs).^2; EL2z&  
BtJF1#f  
Rn=(Rp+Rs)/2; A]o3MoSt  
0lcwc"_DZX  
Tp=1-Rp; ov\%*z2=  
c^&:':Z%'  
Ts=1-Rs; QZO<'q`L  
L+lye Ir'  
Tn=(Tp+Ts)/2; K&=6DvfR  
v] Xy^7?  
figure(2) $SniQ  
i !SN"SY  
subplot(1,2,1); ^;\6ju2  
rXe+#`m2
 
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) d)$seZB  
5$$]ZMof  
legend('R_p','R_s','R_n') Ur""&@  
{@-tRm&  
xlabel('\theta_i') )D]LPCd[  
5:EE%(g9  
ylabel('Amplitude') )^E6VD&6  
 f|yq~3x)  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $"=0{H.?  
::/vDUDc  
axis([0 90 0 1]) PbMvM  
[t5Dd  
grid on t +CU
 
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subplot(1,2,2); f-}_  
Y[;Z7p  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) L'>0E(D  
A2fuNV_  
legend('T_p','T_s','T_n') eN<?rVZl  
'}P$hP_d  
xlabel('\theta_i') f{]W*!VV-  
G)9`Qn  
ylabel('Amplitude') gGbqXG^  
M3)Id?|]6  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +2s][^-KV  
6". v6  
axis([0 90 0 1]) EixAmG  
7{=+Va5  
grid on 6~8dMy;w  
!t&C,@Ox  
<L3ig%#B  
twPD'X!r  
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2、光密射向光疏 G\S_e7$/  
95 X6
V  
clear iA+zZVwO  
Pill |4c<  
close all J`A )WsKkb  
'Z^KpW  
n1=1.45,n2=1; &uu69)u  
'\B!1B>T  
theta=0:0.1:90; aaesgF  
#TY[\$BHs  
a=theta*pi/180; n0'"/zyc  
1|#j/  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 1`Ek
N0iZ  
? `#  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 1?ST*b  
BQ77n2(@  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ::G0v  
#N|A@B5x  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Gv}~  
VWE
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figure(1) qu0dWgK
 
uF\f>E)/N%  
subplot(1,2,1); ln=:E$jX  
DP7B X^e  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) *[wj )  
{FNq&)#`  
legend('r_p','r_s','|r_p|','|r_s|') uze5u\  
;"DI)hdz  
xlabel('\theta_i') *6P)HU@  
H}&4#CQ'!  
ylabel('Amplitude') RB/;qdqR  
D,;6$Pvg^  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,zH\&D$>u  
's6hCs&|NV  
axis([0 90 -1.5 1.5]) W2j@Q=YDS  
nL-kBW Ed>  
grid on :l?/]K  
dRnO5 7+{  
subplot(1,2,2); \jThbCb  
\I`g[nT|  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) k8ej.  
( G#W6  
legend('t_p','t_s','|t_p|','|t_s|') XYsU)(;j  
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JwRu  
xlabel('\theta_i') QDJ:LJz\  
$79-)4;z4  
ylabel('Amplitude') _i+7O^=d6X  
- -H%FYF`  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,Taq~  
?513A>U  
axis([0 90 -0.5 3]) "?TKz:9r  
F {T\UX  
grid on #^&.*'z%z  
xSoXf0zq:  
Rp=abs(rp).^2; j*}2AI  
dsUY[X-<6  
Rs=abs(rs).^2; >^hy@m  
:#zv,U&OC  
Rn=(Rp+Rs)/2; I &I q  
(qXl=e8  
Tp=1-Rp; `SSUQ#@  
`h|>;u   
Ts=1-Rs; VyL|d^'f_  
n^Sc*7  
Tn=(Tp+Ts)/2; v&*}O  
JqmKD4p  
figure(2) i@XFnt  
i(@<KH  
subplot(1,2,1); "sU ~|  
'=eE6=m^K  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) =3?"s(9  
Um'r6ty  
legend('R_p','R_s','R_n') [v$NxmRu  
+4%:q~C  
xlabel('\theta_i') Jf=$h20x  
}8cX0mZ1j  
ylabel('Amplitude') PofHe
 
wam-=3W  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) %/x%hs;d  
Bpw<{U  
axis([0 90 0 1]) ]/{987  
!,3U_!  
grid on d~b#dcv$"  
N>}2&'I  
subplot(1,2,2); h*GU7<F:a  
$"&U%3  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) dECH/vJ^  
|r=.}9 -  
legend('T_p','T_s','T_n') 9&`ejeD  
H\Jpw  
xlabel('\theta_i') eZWR)+aq  
d@72z r  
ylabel('Amplitude') )bGd++2  
|ozlaj  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) dnP3{!"b  
].eY]o}=  
axis([0 90 0 1]) Xqac$%[3  
8>|@O<2\  
grid on Lx"a#rZ  
!bHM:!6^  
$iblLZhj  
H}$hk  

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

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谢谢了楼主分享

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学习学习 d#z67Nl6
  

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