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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 !Na@T]J  
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1、光疏射向光密 %mIdQQ,  
-p%cw0*Y]C  
clear D^a(|L3;  
sgnc$x"  
close all >3*a&_cI=k  
: sw@1  
n1=1,n2=1.45; ZmycK:f  
_0ZU I^#  
theta=0:0.1:90; Gx4{ 9  
Lxv6\3I+  
a=theta*pi/180; GZHJ 4|DK  
$e{[fm x  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ~]`U)Aw  
?G<?: /CU  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); +G\i$d;St  
Ck>]+rl  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); JStEOQF4  
uRYq.`v,  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); "c?31$6  
+WKN&@  
figure(1) 1*'gaa&y  
M ac?HI  
subplot(1,2,1); _y sakn  
|/$954Hr#<  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ksJ 1:_  
[ wnaF|h  
legend('r_p','r_s','|r_p|','|r_s|') ;j[:tt\k  
+EqL|  
xlabel('\theta_i') Xy`'h5  
ZR"qrCSw`  
ylabel('Amplitude') :7JP(j2  
ZG{#CC=  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) vS[\ j  
}n#$p{e$i  
axis([0 90 -1 1]) ue4 {h  
>6@,L+-6r  
grid on jxt]Z3a~0  
&&m1_K  
subplot(1,2,2); Pj_DI)^  
y\[* mgl:  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) p,uM)LD  
y@7CY-1  
legend('t_p','t_s','|t_p|','|t_s|') J4z&J SY  
Fpwhyls  
xlabel('\theta_i') Lxv_{~I*  
gS`Z>+V5!c  
ylabel('Amplitude') v6E5#pse8  
yX%> %#$  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Z:V<P,N  
q|IU+r:! 3  
axis([0 90 0 1]) r>PKl'IbE  
=^l`c$G<  
grid on 1=!2|D:C)i  
/^I!)|At  
Rp=abs(rp).^2; 7 n^1H[q  
[9Tnp]q  
Rs=abs(rs).^2; c? GV  
|?MD>Pez  
Rn=(Rp+Rs)/2; [D<(xr&N%  
6lkCLH  
Tp=1-Rp; /oGaA@#+  
V>UlL&V  
Ts=1-Rs; =*>.z@WQ  
Mpk7$=hjc  
Tn=(Tp+Ts)/2; 77 Z:!J|  
-*-"kzgd  
figure(2) M-F{I%Vx  
AXnKhYlu  
subplot(1,2,1); yZNg[KH  
{ Q!Xxe>6  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) kKDf%=  
L&]{GNw  
legend('R_p','R_s','R_n') oJ#;XR  
!.4q{YWcYk  
xlabel('\theta_i') gd]_OY7L  
C*t0`3g d  
ylabel('Amplitude') _=cuOo"!  
%;Z_`W  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) !2/o]_K@+  
"tDB[?  
axis([0 90 0 1]) 8M BY3F  
d*@K5?O.  
grid on 9c5DEq  
'I>geW?{QK  
subplot(1,2,2); DV*e.Y>  
^ 7)H;$  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) b/E3Kse?  
>yLdrf  
legend('T_p','T_s','T_n') k[*> nE  
Z8f?uF  
xlabel('\theta_i') 7dR]$ ~+*e  
QVl"l'e8  
ylabel('Amplitude') { / ,?3  
h66mzV:`  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) wzY{ii  
@jZ1WHS_a  
axis([0 90 0 1])  Qr-,J_  
3k/X;:,.  
grid on o Z%oP V:  
FU)=+m  
[attachment=80479] '<6DLtZl  
hK %FpGYA  
[attachment=80478] [&lH[:Y#  
200833 2017-11-26 22:36
2、光密射向光疏 p ^)3p5w  
X]=8Oa  
clear tCv}+7)   
C>QWV[F  
close all '*<I<? z;  
q RRvZhf  
n1=1.45,n2=1; {W=5 J7  
xrv0%  
theta=0:0.1:90; y<c7RK]  
=VV><^uzdY  
a=theta*pi/180; dZ4c!3'F  
LG??Q+`l  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); _n&#e r  
S F da?>  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); s@ 6Jz\<E  
/<Z3x _c  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); u-QHV1H`(  
NPDMv |4  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); F3L+X5D.yu  
yI^7sf7k  
figure(1) [2!C ^ \t  
R@U4Ae{+  
subplot(1,2,1); D  ,[yx='  
YPA$38  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 9TwKd0AT$&  
'%YE#1*gH  
legend('r_p','r_s','|r_p|','|r_s|') "8~PfLJ+  
L\V`ou  
xlabel('\theta_i') gdq6jz  
@uanej0q7  
ylabel('Amplitude') X,{[R |  
jmcys _N3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /y6I I$AvM  
X~SNkM  
axis([0 90 -1.5 1.5]) cDK)zD  
!~V^GlY  
grid on 5=%KK3  
A(n#k&W1fZ  
subplot(1,2,2); z 4;@"B  
Kr;=4xg=  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) yvnDS"0<  
$?dQ^]<,  
legend('t_p','t_s','|t_p|','|t_s|') X{<taD2~  
vVrM[0*c  
xlabel('\theta_i') 7[!dm_  
=LGSywWM9  
ylabel('Amplitude') xA`j:zn'j  
Rjv;[  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) M'F<1(  
cG%X}ZV5  
axis([0 90 -0.5 3]) R/kJUl6HEl  
=Y5m% ,Bq  
grid on f=u +G  
uG +ZR: _  
Rp=abs(rp).^2; EU04U  
w7&.U qjf  
Rs=abs(rs).^2; Jb^{o+s53  
wG9aX*(n  
Rn=(Rp+Rs)/2; Y_EEnx&>i  
O&yAFiCd  
Tp=1-Rp; 72.Msnn  
x5V))~Ou  
Ts=1-Rs; Yyr9Kj:  
DdU w~n,  
Tn=(Tp+Ts)/2; c b&Yf1  
Li"+`  
figure(2) <VutwtA  
9 wbQ$>G9  
subplot(1,2,1); YOj&1ymBZ  
RqP_^tB  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ^y KkWB*  
dUt4] ar  
legend('R_p','R_s','R_n') RA[%8Rh)  
X!mJUDzh]  
xlabel('\theta_i') G2?#MO  
Xt$P!~Lu  
ylabel('Amplitude') o 9/,@Ri\5  
0t}v@-abU  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) HGh -rEh  
l|E4 7@#  
axis([0 90 0 1]) Us!ZQ#pP  
%7P]:G+Y\  
grid on 9__B!vw:  
S50}]5K  
subplot(1,2,2); cs.t#C  
& rD8ng+$  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 1[u{y{9 q  
.%e>>U>F  
legend('T_p','T_s','T_n') =~Qg(=U0U  
yiI oqvP  
xlabel('\theta_i') ( $2M"n  
oH?:(S(  
ylabel('Amplitude') f!R7v|j P  
58HA*w  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) D&2NO/ R  
zIu/!aw  
axis([0 90 0 1]) LjE3|+pJ  
'N+;{8C-{  
grid on +~aIT=i3  
)UF'y{K}  
[attachment=80481] QOYMT( j  
tP*Kt'4W  
[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 ) u{ ]rb[  
jabil 2025-03-07 09:40
Thanks
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