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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 K7c8_g*>4=  
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1、光疏射向光密 0)!zhO_}  
K~-XDLh5Nu  
clear w)n]}k  
`WS_*fJ5  
close all :\_MA^<  
IcQ!A=lB  
n1=1,n2=1.45; [ )~@NN  
m=B0!Z1xx  
theta=0:0.1:90; di2=P)3  
eB*8)gYh  
a=theta*pi/180; nh)R  
sEyl\GL  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); {W<-f?  
D:tZiS=0  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 'Y\"^'OU\  
[uQZD1<q  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); t}*!UixE  
)fc"])&8  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); f"N3;,Oc  
FSs$ ] d;  
figure(1) 1o78e2B  
d/rz0L  
subplot(1,2,1); }9 2lr87  
}Xv1KX'  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) F5P{+z7  
N06O.bji  
legend('r_p','r_s','|r_p|','|r_s|') ya g  
C)p<M H<  
xlabel('\theta_i') .WyX/E$I^!  
y4rJ-  
ylabel('Amplitude') #-j! ;?  
os^SD&hL  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) hp V /F  
.BDRD~kB  
axis([0 90 -1 1]) <|Eby!KXR  
k+GnF00N^8  
grid on BV?N_/DXp  
?9@Af{b t2  
subplot(1,2,2); c G!2Iy~lA  
)wv[!cYyW  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) -01 1U!  
C+m^Z[  
legend('t_p','t_s','|t_p|','|t_s|') aw%vu  
42wC."A  
xlabel('\theta_i') /M*\t.[ 46  
>@"3Q`  
ylabel('Amplitude') qS}RFM5|  
N<"6=z@w+  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) C| IQM4  
^1yTL5#:Vw  
axis([0 90 0 1]) }6,bq`MN  
';|>`<  
grid on !vVjZ  
(i0"hi  
Rp=abs(rp).^2; 8421-c6y>  
`=$jc4@J  
Rs=abs(rs).^2; S Y>,kwHO  
^'53]b:  
Rn=(Rp+Rs)/2; _6S b.9m  
G[<[#$(  
Tp=1-Rp; !^bB/e  
q '{<c3&  
Ts=1-Rs; ],}afa!A  
C\^<v&  
Tn=(Tp+Ts)/2; 1L=Qg4 H  
6O@ ^`T  
figure(2) mc=! X  
$N+ {r=  
subplot(1,2,1); y_4krY|Zx  
QD;f~fZ  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) o- QG& ]  
s.I1L?s1w?  
legend('R_p','R_s','R_n') LVFsd6:h  
7}tZ?vD  
xlabel('\theta_i') {F6dSF`  
;ko[(eFN@  
ylabel('Amplitude') CVSsB:H6e  
OQL09u  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r {B,uj"  
azDC'.3{p  
axis([0 90 0 1]) *v nxP9<  
R4~zL!7;  
grid on !ga (L3vf  
[' OCw {<  
subplot(1,2,2); )lDIzLp  
Bpm5dT;  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) F`BgKH!  
7=p-A _X  
legend('T_p','T_s','T_n') K)Xs L  
Y zBA{FE  
xlabel('\theta_i') +/!=Ub[:U  
4j/iG\  
ylabel('Amplitude') d7_g u  
'Elj"Iiu  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) h\u0{!@}  
Q{l*62Bx  
axis([0 90 0 1]) dp[w?AMhM9  
[6_Du6\h  
grid on `J=1&ae{  
O{B e )E~  
[attachment=80479] aO^:dl5  
@( n^S?(  
[attachment=80478] s*)41\V0  
200833 2017-11-26 22:36
2、光密射向光疏 rZ!Yi*? f  
=,AC%S_D~  
clear &G pA1  
znQ'm^h  
close all ~ gfA](N  
hSkc9jBF  
n1=1.45,n2=1; @Ge>i5q  
`dgM|.w5=  
theta=0:0.1:90; ,XeyE;||  
9b"9m*gC  
a=theta*pi/180; S7UZGGjTk  
)H;pGM:  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); L8bI0a]r"*  
Y3P.|  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); t":W.q<  
T}n}.JwU  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $*AC>i\  
&& DD  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); |%'6f}fnE  
j!lAxlOX  
figure(1) C@y}*XV[b  
a@fE46o6<  
subplot(1,2,1); *?^Z)C>  
${eY9-r_%  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) %ezb^O_6v  
$Wr\ [P:  
legend('r_p','r_s','|r_p|','|r_s|') E7X!cm/2<  
 cS D._"P  
xlabel('\theta_i') gf68iR.Gs  
)YzHk ;(  
ylabel('Amplitude') Sc1+(z  
JJ/1daj  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &jV9*  
s;fVnaqG:  
axis([0 90 -1.5 1.5]) JQ) 4}t  
*M> iZO*@  
grid on $ ^W-Wmsz  
G3RrjWtO  
subplot(1,2,2); y4xT:G/M  
gohAp  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;YK!EMM4!h  
K<@[_W+  
legend('t_p','t_s','|t_p|','|t_s|') `y\*m]:  
9 z5"y|$  
xlabel('\theta_i') kAZC"qM%i  
Xw7{R  
ylabel('Amplitude') "sF Xl  
Yv)Bj  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) )!'n&UxPo$  
AIuMX4nb  
axis([0 90 -0.5 3]) X^zYQ6t  
UF@IBb}0  
grid on aB6Ye/Io  
#/ OUGeJ  
Rp=abs(rp).^2;  28nmQ  
;yF[2P ;  
Rs=abs(rs).^2; 6( >3P  
[RAj3Fr0  
Rn=(Rp+Rs)/2; +"]oc{W!  
c]A Y  
Tp=1-Rp; blJIto '  
ZhH+D`9  
Ts=1-Rs; [^<SLTev  
TE3*ktB{N  
Tn=(Tp+Ts)/2; pG/ NuImA  
;aq`N}d  
figure(2) l iw,O 6  
CV'&4oq  
subplot(1,2,1); Xo2^N2I  
)T>8XCL\}  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) "$GK.MP5  
b.QpHrnhtK  
legend('R_p','R_s','R_n') x+4v s s  
EPc!p>  
xlabel('\theta_i') CE)*qFs  
egfi;8]E  
ylabel('Amplitude') lp(Nv(S  
}04Dg '  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) "X`RQ6~]>  
)AOPiC$jL  
axis([0 90 0 1]) ;t}'X[U  
0z/h+,  
grid on yL.^ =  
l$F_"o?&S@  
subplot(1,2,2); ji }#MBac  
 L#n}e7Y9  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) +4Q[N;[+*  
lqF>=15  
legend('T_p','T_s','T_n') im=5{PbJ^  
[6H}/_nD  
xlabel('\theta_i') >;,gGH  
D}MoNE[r  
ylabel('Amplitude') [a@ B =E  
KGu= ;  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Vc|NL^  
N r<9u$d9=  
axis([0 90 0 1]) o5P&JBX<  
q-YL]PgV  
grid on ZPl PN;J^1  
[UoqIU  
[attachment=80481] 0pD[7~^o  
okz]Qc>G  
[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
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