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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 Gb;99mE  
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1、光疏射向光密 4Rx~s7l  
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clear alFNSRY  
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close all vd`O aM}#U  
6,X+1EXY  
n1=1,n2=1.45; kVd5,Qd  
a"x}b  
theta=0:0.1:90; .46#`4av  
/hL\,x 2  
a=theta*pi/180; /jM_mrpz  
_BbvhWN&+  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); tAERbiH  
Zae.MO^C!  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); J96uyS*  
9UV9h_.x  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); gljo;f:  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); z`4c 4h]I  
p}uncIod  
figure(1) #.H}r6jqs  
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subplot(1,2,1); 8] `Ru5nd  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ?E6^!4=,  
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legend('r_p','r_s','|r_p|','|r_s|') 2VA!&`I  
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xlabel('\theta_i') ,!Q]q^{C:W  
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ylabel('Amplitude') \9`#]#1bx5  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7b,(\Fm  
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axis([0 90 -1 1]) 6Z?Su(s(5  
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grid on lj4o#^lC  
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subplot(1,2,2); D<>@ %"%  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 2z\e\I  
tlQC6Fb#  
legend('t_p','t_s','|t_p|','|t_s|') ,$N#Us(Wa  
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xlabel('\theta_i') o:~LF6A-  
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ylabel('Amplitude') 4t*so~  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O$D?A2eI  
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axis([0 90 0 1]) u-3:k  
!Ms[eB  
grid on pDl3!m  
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Rp=abs(rp).^2; Dd,2;#_  
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Rs=abs(rs).^2; E=$p^s  
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Rn=(Rp+Rs)/2; V 1/p_)A  
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Tp=1-Rp; ~b)74M/  
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Ts=1-Rs; !5Sd2<N  
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Tn=(Tp+Ts)/2; Pw[g  
!h`kX[:  
figure(2) _zMgoc7  
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subplot(1,2,1); hgj <>H|  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 4(8xjL:  
e<cM[6H'D  
legend('R_p','R_s','R_n') u0Nm.--;_3  
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xlabel('\theta_i') @~ETj26U'  
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ylabel('Amplitude') 4 %W:  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &(N+.T5cp  
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axis([0 90 0 1]) ,9D+brm  
0#*Lw }qi  
grid on $O)3 q $|  
r^,<(pbd  
subplot(1,2,2); kgi>} %  
DA&?e~L&H  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) XB59Vm0E=  
p< "3&HA  
legend('T_p','T_s','T_n') "vZ!vt#'Y  
pmWr]G3,*  
xlabel('\theta_i') OTDg5:>  
^Yj xeNY  
ylabel('Amplitude') \QE)m<GUe  
\>QF(J [8  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Xx:F)A8O  
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axis([0 90 0 1]) ~{,X3-S_H  
L|@y&di  
grid on *3/T;x.  
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[attachment=80479] sZGj"_-Hzu  
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[attachment=80478] uvP2Wgt  
200833 2017-11-26 22:36
2、光密射向光疏 +l3=3  
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clear ,<BbpIQ2o  
xj5;: g#!  
close all Sf5X3,Uw  
LI2&&Mw  
n1=1.45,n2=1; I$N8tn+E  
X3'H `/  
theta=0:0.1:90; ]I3!fEAWR  
J:&[ 59  
a=theta*pi/180; EnOU?D  
MUfG?r\t  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 2MZCw^s>  
l2N]a9bq@  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); (jU6GJRP  
?v>ET2wD  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); U!U$x74D5  
@2'Mt}R>  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Z R/#V7Pj  
U- )i+}Ng  
figure(1) 0d8%T<=J  
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subplot(1,2,1); ( =~&+z  
!uQPc   
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) .9Y)AtJTS  
B,,D7cQC  
legend('r_p','r_s','|r_p|','|r_s|') &gzCteS  
da)NK!  
xlabel('\theta_i') Aq3}Ng  
g=I8@m  
ylabel('Amplitude') \=_{na_  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) J9~ g|5  
gz3pX#S  
axis([0 90 -1.5 1.5]) jH_JmYd  
\hCH>*x<  
grid on [jmd  
q$=#A7H>3)  
subplot(1,2,2); 8#vc(04(  
-[-wkC8a  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) L|p Z$HB  
uu`G 2[t  
legend('t_p','t_s','|t_p|','|t_s|') _3ZYtmn.  
K4kMM*D  
xlabel('\theta_i') 5LOo8xN  
IIbYfPiO  
ylabel('Amplitude') 812$`5l  
/~3r;M  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) eH{[C*  
7Hs%Cc"  
axis([0 90 -0.5 3]) Hw4%uS==V  
^pUHKXihD  
grid on %f]:I  
6Oy$gW)  
Rp=abs(rp).^2; Mxv;k%l|E|  
AJ=qna  
Rs=abs(rs).^2; soQ1X@"0  
/FRm2m83  
Rn=(Rp+Rs)/2; :8OZ#D_Hl  
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Tp=1-Rp; x@ms  
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Ts=1-Rs; 4M2j!Sw  
-PfX0y9n  
Tn=(Tp+Ts)/2;  a24"yT  
u?}(P_9  
figure(2) BBev<  
_WRFsDZ'  
subplot(1,2,1); 5rU[ T ir  
JT!9\i  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) X<I+&Zi  
Y/*mUS[oa  
legend('R_p','R_s','R_n') rogT~G}q  
%4gg@Z9  
xlabel('\theta_i') 2I,^YWR  
):[7E(F=  
ylabel('Amplitude') 32`{7a3!=  
c_4[e5z  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) uo@n(>}EL  
XMxSQ B1  
axis([0 90 0 1]) sG92XJ  
?M\{&mlF  
grid on ~ Q.7VDz  
;5659!;  
subplot(1,2,2); ,)vDeU  
$}!p+$  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) =\H!GT  
mj W8 Q\D  
legend('T_p','T_s','T_n') +lHjC$   
6G[4rD&  
xlabel('\theta_i') `)T13Xv  
,[P{HrHx  
ylabel('Amplitude') zem8G2#c  
n(;|q&3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) SAy=WV  
h4 T5+~rw  
axis([0 90 0 1]) XovRg,  
cj$[E]B3V*  
grid on .\)U@L~  
\1D<!k\S  
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6ZP(E^.  
[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 vQosPS_2L  
jabil 2025-03-07 09:40
Thanks
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