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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 Gash3}+  
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1、光疏射向光密 [9aaHf@'  
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clear YN"102CK  
p~Dm3^Y  
close all B:+}^=  
vAwFPqu  
n1=1,n2=1.45; @YWfq$23  
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theta=0:0.1:90;  /=[M  
D1#E&4   
a=theta*pi/180; POUB{ba  
YJeZ{Wws  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); gjyg`%  
pN4!*7M  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); l]3g6c  
W+Gu\=s%O  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); \+L_'*&8  
fBw+Y4nCO7  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); VJHHC.Kz  
f_.1)O'83  
figure(1) |byB7 f  
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subplot(1,2,1); xH3SVn(I  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) glk I9~  
Ra~n:$tg2  
legend('r_p','r_s','|r_p|','|r_s|') ?xUz{O0/  
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xlabel('\theta_i') fVR ~PG0  
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ylabel('Amplitude') -b)p6>G-C  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) V~e1CZ(2X  
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axis([0 90 -1 1]) ?:n{GK  
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grid on Qyd3e O_  
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subplot(1,2,2); =7Tbu'O;  
q. BqOa:  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 8Bhot,u'T  
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legend('t_p','t_s','|t_p|','|t_s|') )2rI/=R  
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xlabel('\theta_i') F<IqKgGzH  
vkbB~gr@*  
ylabel('Amplitude') nV']^3b  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) B(^fM!_%-6  
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axis([0 90 0 1]) c%uhQ 62  
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grid on :nZ*x=aq  
unD8h=Z2  
Rp=abs(rp).^2; \I'A:~b)L  
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Rs=abs(rs).^2; |l)Oy#W  
O8dDoP\F2  
Rn=(Rp+Rs)/2; 39~fP)  
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Tp=1-Rp; <;U"D.'  
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Ts=1-Rs; @}fnR(fS  
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Tn=(Tp+Ts)/2; A9lqVMp64  
/I6?t= ?<  
figure(2) DO( /,A<{8  
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subplot(1,2,1); M6DyOe<  
Y|B/(  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) @uH7GW}$g  
h)A+5^:^  
legend('R_p','R_s','R_n') L{gFk{@W  
e,1Jxz4QH  
xlabel('\theta_i') >O\-\L  
Pv0OoN*eJ{  
ylabel('Amplitude') ]]`+aF0  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #+_Oy Z*  
VQo7 se1P  
axis([0 90 0 1]) 4r5,kOFWb  
Y{p *$  
grid on oMMU5sm  
2 ] 4R`[#  
subplot(1,2,2); "Ny_RF  
1bj75/i<6  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) OWq~BZ{  
d,D)>Y'h  
legend('T_p','T_s','T_n') *O 0*  
7Uj[0Awn  
xlabel('\theta_i') s0nihX1Z-  
?58pkg J  
ylabel('Amplitude') _0vXujz  
X.UIFcK^  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =BGc@:2  
d[S C1J  
axis([0 90 0 1]) }#yRa Ip  
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grid on YHKm{A ]  
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[attachment=80479] .3HC*E.e  
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[attachment=80478] f-{[ushj  
200833 2017-11-26 22:36
2、光密射向光疏 JBWiTUk  
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clear VVe>}  
3'.OghI  
close all  /?_{DMt  
}xdI{E1 q)  
n1=1.45,n2=1; H%%#^rb^  
M#|TQa N  
theta=0:0.1:90; C ]r$   
G: @gO2(D  
a=theta*pi/180; O-&n5  
slPFDBx  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 0kiW629o  
g~V{Ca;}  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); sxsM%Gb?H  
\!YPht  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); %@r h\Z  
OI`Lb\8pP  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); J'7){C"G$  
' !_44  
figure(1) WV&BZ:H  
L50`,,WF  
subplot(1,2,1); h.7 1O"N  
uvmNQg  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) H}}t )H  
<`N\FM^vo  
legend('r_p','r_s','|r_p|','|r_s|') 9#3+k/A  
c}{e,t  
xlabel('\theta_i') /Fv1Z=:r  
+"p" ,Z  
ylabel('Amplitude') 9(@bjL465  
m _]"L  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) MK"Yt<e(o  
p@Qzg /X  
axis([0 90 -1.5 1.5]) Gu%`__   
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grid on |Y])|`_'G  
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subplot(1,2,2); Kt^PL&A2  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Dn6DkD!  
lv\2vRYw-  
legend('t_p','t_s','|t_p|','|t_s|') 5-C6;7%:  
*v 8 ]99N  
xlabel('\theta_i') "?N`9J|j)~  
w1GCjD*y  
ylabel('Amplitude') jn+0g:l  
$h$+EE!  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \XpPb{:>  
n&Al~-Q:^  
axis([0 90 -0.5 3]) xw=B4u'z  
@L~y%#  
grid on 'l;?P  
r[?rwc^  
Rp=abs(rp).^2; [@\f 0R  
tq*Q|9j7VG  
Rs=abs(rs).^2; ,)QmQ ^/  
y'+^ ME$H  
Rn=(Rp+Rs)/2; v)pdm\P  
HQE#O4  
Tp=1-Rp; P/ y-K0u  
da-3hM!u+  
Ts=1-Rs; lRO8}XSI  
oS`F Yy  
Tn=(Tp+Ts)/2; _WSJg1  
M P3E]T~:  
figure(2) d>aZpJ[.  
ct]5\g?U'  
subplot(1,2,1); |FcG$[  
=-q)I[4#  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Onc!5L  
`n%~#TJ  
legend('R_p','R_s','R_n') vAVoFL  
l s_i)X  
xlabel('\theta_i') PNKmI  
'kC$R;#\7  
ylabel('Amplitude') ]>AW  
TQEZ<B$  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ("TI~  
'!Sj]+  
axis([0 90 0 1]) `#(4K4]1.  
$]T7Iwk  
grid on @ J"1 !`  
UtWoSFZ'o!  
subplot(1,2,2); m.$Oo Mu'  
[lnN~#(Y  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) My[L3KTTp  
O-G@To3\  
legend('T_p','T_s','T_n') BPPhVE  
L3W ^ip4  
xlabel('\theta_i') O/<jt'  
QK@z##U  
ylabel('Amplitude') w5[POo' 5  
 r>G$u  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =X1$K_cN  
0}b8S48|?  
axis([0 90 0 1]) @&~BGh  
*;}!WDr  
grid on yy>4`_  
{66vdAu&h<  
[attachment=80481] <W5F~K ;41  
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[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 GnLh qm"\  
jabil 2025-03-07 09:40
Thanks
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