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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 O _yJR  
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1、光疏射向光密 QKL5! L9`  
YC - -&66  
clear Sir7TQ4B  
?5K.#>{  
close all =O?<WJoK  
x|<rt96 6A  
n1=1,n2=1.45; KV k 36;$  
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theta=0:0.1:90; "[L[*>[9!  
,DqI> vx|  
a=theta*pi/180; 68V66:0  
T;w%-k\<r  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); _}:9ic]e  
/k|y\'<  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); kLU$8L  
x$QOOE]  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ?;i O  
j +\I4oFN  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); PaP47>(  
1/c7((]7(,  
figure(1) K{B[(](  
 poGF  
subplot(1,2,1); -^=gQ7f9  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 6AKH0t|4  
*F1!=:&s  
legend('r_p','r_s','|r_p|','|r_s|') (s4w0z  
zGHP{a1O7  
xlabel('\theta_i') EpB2?XGA  
v~[=|_{  
ylabel('Amplitude') x[U/ 8#f&  
f;!1=/5u-  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _Isju S  
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axis([0 90 -1 1]) ~Os"dAgZFY  
xgn@1.}G  
grid on aFjcyD  
1Y6<i8  
subplot(1,2,2); |&`NB|  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) vz #VW  
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legend('t_p','t_s','|t_p|','|t_s|') f]L`^WU  
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xlabel('\theta_i') |&eZ[Sy(=l  
L}UJ`U  
ylabel('Amplitude') 57k@] 3 4  
 ;)s$Et%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [tGAo/  
HhDiGzOSi  
axis([0 90 0 1]) +kP)T(6  
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grid on }u:@:}8K  
j9)P3=s  
Rp=abs(rp).^2; ,V'+16xW  
fw$/@31AP?  
Rs=abs(rs).^2; ,l^; ZE  
xy)Y)yp  
Rn=(Rp+Rs)/2; Y f:xM>.%  
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Tp=1-Rp; 92!1I$zi  
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Ts=1-Rs; /yPFts_q  
[[2Zcz:  
Tn=(Tp+Ts)/2; 9g3e( z@  
! 7A _UA8  
figure(2) 64 9{\;*4  
OF J49X  
subplot(1,2,1); xS?[v&"2  
j hf%ze  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) /?uA{/8  
rOQ@(aUAZ  
legend('R_p','R_s','R_n')  >Eg/ir0  
c]LE9<G  
xlabel('\theta_i') :tU&d(8  
#=C!Xx&  
ylabel('Amplitude') &?UIe]  
l/0"'o_0v#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) q}P< Ejq}  
lx _jy>$}r  
axis([0 90 0 1]) kx&Xk0F_g  
)d5H v2/0  
grid on lVF}G[B  
C^9G \s'  
subplot(1,2,2);  2f>G   
]S;^QZ  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) h&@ A'om~  
L A &W@  
legend('T_p','T_s','T_n') L c4\i  
.<&o,D  
xlabel('\theta_i') gZ vX~  
q2 K@i*s  
ylabel('Amplitude') JrlDTNJj'  
7i^7sT8t  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Ua0fs|t1v  
[ u7p:?WDW  
axis([0 90 0 1]) Wy1#K)LRb  
_~~:@fy  
grid on v0uDL7  
_+Tq&,_:o  
[attachment=80479] Kg lL@V7  
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[attachment=80478] Su.imM!  
200833 2017-11-26 22:36
2、光密射向光疏 1 EE4N\  
yQ$Q{,S9  
clear  uP|Py.+  
#._%~}U  
close all Nl"Xl?y}  
u /PaXQ  
n1=1.45,n2=1; ;k1 \-  
MzUNk`T @  
theta=0:0.1:90; \"r84@<  
Jv_KZDOdk  
a=theta*pi/180; st~ 1[in  
\l)Jb*t  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); U~9Y9qzy,  
wxC&KrRF  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); *B<Ig^c  
H}v.0R  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); )v\zaz  
z}Y23W&sX  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); p@B/S(Xi  
bogw/)1  
figure(1) !~sgFR8W  
IQz"FH?  
subplot(1,2,1); u7PtGN0r%  
}5_[t9LX  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) pF0sXvWGG  
M$Sq3m`{!  
legend('r_p','r_s','|r_p|','|r_s|') GjVq"S  
cV;<!f+  
xlabel('\theta_i') ++>HU{  
qW~Z#Si  
ylabel('Amplitude') `O5 Hzb(}  
#eRrVjbo  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) eXs^YPi  
VkFvV><"  
axis([0 90 -1.5 1.5]) P:lmQHls+  
)I~U&sT\/  
grid on oe (})M  
 +\Hh|Uz5  
subplot(1,2,2); uGXN ciEp`  
-4 *94<  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) XK*55W &og  
c#)!-5E~H  
legend('t_p','t_s','|t_p|','|t_s|') J\06j%d,  
u92);1R  
xlabel('\theta_i') +,;"?j6<p  
6[.#B!;9  
ylabel('Amplitude') B=ckRW q  
2wCSjAWWh(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 2SjH7 '  
?"hrCEHV{9  
axis([0 90 -0.5 3]) 3VI[*b  
`EBI$;!  
grid on R #f*QXv  
d#tqa`@~  
Rp=abs(rp).^2; \*a7o GyH>  
xYmh{Vc8  
Rs=abs(rs).^2; |_6V+/?"?`  
kv!QO^;^Y  
Rn=(Rp+Rs)/2; s0zN#'o]  
?&gqGU}  
Tp=1-Rp; ^uWPbW&/q  
kT@m*Etr{  
Ts=1-Rs; o [ Je  
m{v*\e7 P  
Tn=(Tp+Ts)/2; h0cdRi  
*\-$.w)k  
figure(2) p&s~O,Bw$  
]2_b_ok  
subplot(1,2,1); _YK66cS3E/  
WX-J4ieL  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ]NEr]sc-"F  
7 I$~E  
legend('R_p','R_s','R_n') 7:M`k#oDP  
`i2:@?Kl9  
xlabel('\theta_i') Y:?cWO  
H1t`fyri2  
ylabel('Amplitude') mhNX05D  
**G5fS.^W  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) f,}(= u  
*2T"lpl  
axis([0 90 0 1]) 2FVO@D  
sk%Xf,  
grid on ufF>I  
%&5PZmnW  
subplot(1,2,2); De-hHY{>  
Ueb&<tS  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 6"L,#aKm^  
u\A L`'v  
legend('T_p','T_s','T_n') R<<U(.E  
mx!EuF$I  
xlabel('\theta_i') f=EWr8mno  
mB5Sm|{  
ylabel('Amplitude') "!B\c9q  
YlhyZ&a,  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) rj ] ~g  
v;sWI"Fv!  
axis([0 90 0 1]) _2a)b(<tF  
)z_5I (?&  
grid on 3 ,f3^A  
9*2Q'z}_  
[attachment=80481] .WVIdVO7  
| 9 <+!t\  
[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 XZ"oOE0=  
jabil 2025-03-07 09:40
Thanks
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