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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 9 EV.![  
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1、光疏射向光密 Dq9*il;'  
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clear :$&v4IW  
Hie  
close all G Y+li {  
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n1=1,n2=1.45; G9r~O#=gy  
18G=j@k7  
theta=0:0.1:90; !4(QeV-=  
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a=theta*pi/180; =r>u'wRQ  
Q-y`IPtA<  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); C?t!Uvs  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); A\)~y{9bQ  
`-w;/A"MJ  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); w'a3=_nW  
t`E e/L%  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ^.@F1k  
4>(rskl_  
figure(1) .._UI2MA  
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subplot(1,2,1); ugS  
g0:{{w  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) D7v_ <  
sTw+.m{F  
legend('r_p','r_s','|r_p|','|r_s|') QEc4l[^{.B  
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xlabel('\theta_i') Y@2yV(m)o  
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ylabel('Amplitude') z2[{3Kd*  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 7(C:ty9  
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axis([0 90 -1 1]) gvoYyO#cm  
].Xh=7&2{  
grid on C!W0L`r  
 N}KL'  
subplot(1,2,2); 1;eWnb(  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) e$o]f"(  
dK>sHUu  
legend('t_p','t_s','|t_p|','|t_s|') =TJ9Gr/R&:  
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xlabel('\theta_i') 3a}53? $  
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ylabel('Amplitude') ry0YS\W  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~,.'#=V  
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axis([0 90 0 1]) ji.T7wn1u  
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grid on XvVi)`8!u  
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Rp=abs(rp).^2;  Lr0:y o  
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Rs=abs(rs).^2; afE)yu`  
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Rn=(Rp+Rs)/2; J;'H],w}f  
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Tp=1-Rp; lcK4 Uq\q  
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Ts=1-Rs; Q hdG(`PY~  
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Tn=(Tp+Ts)/2; h 27f0x9  
h.q9p!  
figure(2) IZs&7  
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subplot(1,2,1); _{$<s[S  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) G|u)eW  
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legend('R_p','R_s','R_n') [:+f Y[4==  
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xlabel('\theta_i') `\GR Y @cg  
nDyA][  
ylabel('Amplitude') w|abaMam  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) snYeo?|b  
d:"7Tw2v+  
axis([0 90 0 1]) _qk yU)z  
2_}oOt?qiM  
grid on FC WF$'cO  
A]ZQ?- L/  
subplot(1,2,2); ~tn$AtK  
%xr'96d  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) $9P=  
(2UA,  
legend('T_p','T_s','T_n') 0s79rJ  
d"L(eI}G  
xlabel('\theta_i') Kg`P@  
S|af?IW  
ylabel('Amplitude') [5tvdW6Z &  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 2|ej~}Y  
;A4j_ 8\[  
axis([0 90 0 1]) uQ|LkL%< ^  
;M~9Yr=1  
grid on -*Tf.c  
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[attachment=80479] [XttT  
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[attachment=80478] :,fT^izew  
200833 2017-11-26 22:36
2、光密射向光疏 TQb@szp:|  
UBJYs{zz  
clear +~ Hb}0ry  
-v-kFzu  
close all HEAW](s  
nCQ".G  
n1=1.45,n2=1; y5F"JjQAa  
pL!,1D!  
theta=0:0.1:90; _`gkYu3R+  
QT zN  
a=theta*pi/180; ({@" {  
:J_UXtx  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); J9OL>!J  
-agB ]j  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); m5&Ht (I%n  
\F-n}Z  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 8)> T>-os  
^/$dSXKF  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); $${3I4  
R)ZzRz|/  
figure(1) ~(-1mB,  
tzfyS#E  
subplot(1,2,1); e$_gOwB  
Ook\CK*nKe  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) U;TS7A3  
jSM`bE+"  
legend('r_p','r_s','|r_p|','|r_s|') bq) 1'beW  
I'^XEl?   
xlabel('\theta_i') oV;sd5'LG  
s,f2[6\Y  
ylabel('Amplitude') ~k-'  
\!30t1EZ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) S.Kcb=;"L  
J[r_ag  
axis([0 90 -1.5 1.5]) f0Q! lMv  
R9^vAS4t[O  
grid on 7w" !"W#  
(T$cw(!  
subplot(1,2,2); ;dMr2y`6  
O`1!&XT{x  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) R.2i%cU  
DBHHJD/q  
legend('t_p','t_s','|t_p|','|t_s|') ky]^N)  
qTRP2rH,L&  
xlabel('\theta_i') rPBsr<k#5  
rir,|y,  
ylabel('Amplitude') v;5-1  
t#_6GL  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) EtPB_! +  
p>\[[Md  
axis([0 90 -0.5 3]) <*z'sUh+}  
BeQ'\#q,  
grid on ~Q Q1ZP3  
Rf8ZH  
Rp=abs(rp).^2; /DH`7E  
^H2TSaJ;  
Rs=abs(rs).^2; Sin)]zG~0  
!`7evV:  
Rn=(Rp+Rs)/2; \Gk}Fer  
N#jUqm  
Tp=1-Rp; ^Ss <<  
j DEym&-  
Ts=1-Rs; #K@!jh)y^  
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Tn=(Tp+Ts)/2; lul  
Iurz?dt4w  
figure(2) ) ?kbHm  
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subplot(1,2,1); c)N_"#&  
bA Yp }  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 5uSg]2:  
\24'iYtqW  
legend('R_p','R_s','R_n') %rnRy<9  
~H?v L c;>  
xlabel('\theta_i') <_pLmYI  
>YXb"g@.  
ylabel('Amplitude') /Us+>vg!  
:.l\lj0Yf  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r/0 #D+A  
:N^B54o%6  
axis([0 90 0 1]) ;,TT!vea  
RT'5i$q[  
grid on v,N!cp1  
{Fyw<0 [@  
subplot(1,2,2); i=>`=. ~  
rGt]YG#C  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ?wmu 0rR  
bT9:9LP  
legend('T_p','T_s','T_n') ^i WGGnGS  
+kxk z"fP  
xlabel('\theta_i') SI%J+Y7  
oz:J.<j24Z  
ylabel('Amplitude') iH]0 YT.E  
wod{C!  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n]5Pfg|a  
:18}$  
axis([0 90 0 1]) X3gYe-2  
FU}- .Ki  
grid on hhylsm  
d3T7$'l$  
[attachment=80481] 1uA-!T*e>  
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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 L=<,+m[!  
jabil 2025-03-07 09:40
Thanks
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