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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 T UO*w  
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1、光疏射向光密 YnwP\Arfq  
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clear g6(u6%MD  
!~a1xI~s  
close all wKj0vMW  
=Y<RG"]a&J  
n1=1,n2=1.45; @WO>F G3  
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theta=0:0.1:90; .Eg[[K_iD  
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a=theta*pi/180; +^V%D!.$@  
PP!} w  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Jsw%.<  
j[&C6l+wH  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); -:  8[  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); F'3-*>]P  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6^v HFJ$  
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figure(1) cP &XkAQ  
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subplot(1,2,1); FX:'38-fk  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) V8IEfU  
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legend('r_p','r_s','|r_p|','|r_s|') r^$WX@ t&  
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xlabel('\theta_i') N Uq'96 {Y  
EP}NT)z,{  
ylabel('Amplitude') 0\Ga&Q0-(O  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) wwh)B92Y5  
drEND`,@6|  
axis([0 90 -1 1]) oZ"93]3-  
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grid on _)F0o C {  
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subplot(1,2,2); HA::(cXL  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;O Y*`(Id  
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legend('t_p','t_s','|t_p|','|t_s|') 7(1UXtT  
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xlabel('\theta_i') LSN%k5G7.  
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ylabel('Amplitude') T!pjv8y@R  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n;,>Fv  
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axis([0 90 0 1]) TWk1`1|  
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grid on PTFe>~vr*  
Fu6~8uDV{{  
Rp=abs(rp).^2; yHt `kb2  
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Rs=abs(rs).^2; kEpCF:@A  
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Rn=(Rp+Rs)/2;  wk (}q  
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Tp=1-Rp; OJ Y_u[  
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Ts=1-Rs; c<n <!!vi  
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Tn=(Tp+Ts)/2; Z2wgfP`  
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figure(2) yk7l{F  
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subplot(1,2,1); GVt}\e~"  
("$ ,FRTQ:  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) b&~s}IX   
T6=q[LpsKN  
legend('R_p','R_s','R_n') 1=.+!Tg  
A/+bwCDP  
xlabel('\theta_i') >:yU bo)  
0zvA>4cq)  
ylabel('Amplitude') "Ooc;xD3<  
uY'77,G_J  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3(/J(8  
!1s^TB>N  
axis([0 90 0 1]) XK7$Xbd  
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grid on GI40Ztms  
[~_()i=Y  
subplot(1,2,2); ;`P}\Q{  
uh_ 2yw_  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 2UGnRZ8:1Y  
lImg+r T{  
legend('T_p','T_s','T_n') 1 6N+  
nC> 'kgRt  
xlabel('\theta_i') K@UQ O  
CYCG5)<9  
ylabel('Amplitude') mtQlm5l  
Ws>2 S  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }co*%F{1  
Zg#VZg1 2  
axis([0 90 0 1]) 3.^Tm+ C  
MPg"n-g*  
grid on Qso"jYl<  
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200833 2017-11-26 22:36
2、光密射向光疏 KS6H`Mm}/  
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clear N3`EJY_|V  
^bj aa  
close all q0l=S+0  
f;w7YO+$p9  
n1=1.45,n2=1; |dxcEjcY_  
WLe9m02r  
theta=0:0.1:90; E =7m@"0  
8 FqhSzw  
a=theta*pi/180; ?t JyQT  
]tzO)c)w;  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); JXBTd=r_oM  
\~:Uj~  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); JGB 9Z   
B?G!~lQ)o  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); )t-Jc+*A>  
{ eU_  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ~fDMzOd  
WjrUns  
figure(1) Snav)Hb'  
n4YedjHSN  
subplot(1,2,1); BV8-\R@  
W_##8[r(?  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 1gTW*vLM\  
.|pyloL.  
legend('r_p','r_s','|r_p|','|r_s|')  >Mzk;TM  
aq|R?  
xlabel('\theta_i') EPZ^I)  
qXH\e|  
ylabel('Amplitude') @4'bI)  
x'.OLXx>  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) *r&q;ER  
ygvX}q  
axis([0 90 -1.5 1.5]) 9b/7~w.  
nS53mLU)  
grid on `Z}7G@ol  
H</Mh*Fl2G  
subplot(1,2,2); QX'EMyK$  
@LzqQ [  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) /ox9m7Fz7  
Kf.G'v46  
legend('t_p','t_s','|t_p|','|t_s|') H.D1|sU  
(L{Kg U&{$  
xlabel('\theta_i') &@c?5Ie5  
7q'_]$  
ylabel('Amplitude') '>}dqp{Wr  
33{(IzL0  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)])  !IZbMn6  
Q UQ"2oC  
axis([0 90 -0.5 3]) (\Iz(N["G  
ZwV`} 2{  
grid on O%g%*9  
M%3 \]&  
Rp=abs(rp).^2; d"1DE  
Vu%XoI)<KY  
Rs=abs(rs).^2; +EmT+$>J  
y}fF<qih'>  
Rn=(Rp+Rs)/2; j &#A 9!  
#q06K2  
Tp=1-Rp; c\n&Z'vK  
1;\A./FVv  
Ts=1-Rs; 6a+w/IO3OU  
w/L^w50pt  
Tn=(Tp+Ts)/2; 1|?8g2Vf  
_e ]jz2j  
figure(2) Mp V3.  
>d`XR"_e  
subplot(1,2,1); acSm+t  
{M7`z,,[  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) "funFvY  
B]`!L/  
legend('R_p','R_s','R_n') e~#"#?  
& *^FBJEa.  
xlabel('\theta_i') sG/mmZHYzr  
+@'{  
ylabel('Amplitude') U5 `h  
aKLA_-E  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) UN~dzA~V  
WcCJ;z:S?k  
axis([0 90 0 1]) _^)Wrf+  
o]&w"3vOP0  
grid on W>ziA  
aUdbN&G  
subplot(1,2,2); AhZ`hj   
^J?ExMu  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ; bBz<  
yj^LX2x"  
legend('T_p','T_s','T_n') @} nI$x.  
F-\Swbx+  
xlabel('\theta_i') B8jSdlvz  
*^BW[C/CTR  
ylabel('Amplitude') uhyw?#f  
4(VVEe  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) h>'9-j6B  
u|!On  
axis([0 90 0 1]) di@4'$5#  
1]yOC)u"i  
grid on 9`"o,wGX3  
D 8nt%vy  
[attachment=80481] Mp*S+Plp  
LvWl*:z  
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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 TBfX1v|Z)  
jabil 2025-03-07 09:40
Thanks
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