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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 P>-,6a>  
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1、光疏射向光密 *zWn4BckN  
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clear +IYSWR  
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close all :N}KScS|Wa  
mtHz6+  
n1=1,n2=1.45; ~~,<+X:  
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theta=0:0.1:90; +kL(lBv'  
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a=theta*pi/180; sBnPS[Oo  
8B/9{8  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Gu).*cU  
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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)); S+Yg!RrNqj  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); .<%M8rcj  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ($> 0&w  
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figure(1) FOi`TZ8  
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subplot(1,2,1); J *?_SnZ  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ,r;d{  
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legend('r_p','r_s','|r_p|','|r_s|') ~+yo;[1Yc  
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xlabel('\theta_i') W2qQKv  
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ylabel('Amplitude') (t$/G3E  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) {PtTPz  
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axis([0 90 -1 1]) :0/o?'s  
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grid on , vyx`wDd  
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subplot(1,2,2); \|` Pul$  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) DW&')gfQ  
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legend('t_p','t_s','|t_p|','|t_s|') 9mphj)`d;#  
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xlabel('\theta_i') Vj`s_IPY  
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ylabel('Amplitude') [(EH  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) t`t:qko  
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axis([0 90 0 1]) ![ID0}MjJ  
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grid on p+UHJ&  
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Rp=abs(rp).^2; ]V^.!=gh$  
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Rs=abs(rs).^2; )Q/`o,Vm  
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Rn=(Rp+Rs)/2; lY9M<8g  
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Tp=1-Rp; fUKdC \WL  
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Ts=1-Rs; IYg3ve`x  
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Tn=(Tp+Ts)/2; T^;Jz!e  
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figure(2) X8n/XG~_  
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subplot(1,2,1); c0Ro3j\p  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) jI2gi1 ,a  
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legend('R_p','R_s','R_n') ~K$"PK s3  
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xlabel('\theta_i') `e'o~ oSu  
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ylabel('Amplitude') m<,G:?RM  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5QFXj)hR+4  
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axis([0 90 0 1]) \g:qQ*.  
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grid on `NWgETf^#  
+;wqX]SD&  
subplot(1,2,2); ^r$iN %&~  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) U[e8K  
vV\F^  
legend('T_p','T_s','T_n') a.&#dxgW[  
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xlabel('\theta_i') 9H, &nET  
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ylabel('Amplitude') -=t3O#  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [T[9*6Kt  
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axis([0 90 0 1]) vXM/nw|5  
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grid on |RAQ%VXm  
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[attachment=80479] & A9A#It  
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200833 2017-11-26 22:36
2、光密射向光疏 Neo^C_[vN  
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clear Msa6yD#  
q ~Q)'*m  
close all qv0 DrL,3  
oLqbR?  
n1=1.45,n2=1; _+Jf.n20  
_D2bGZN  
theta=0:0.1:90; Ub'%pU  
4`UL1)A]  
a=theta*pi/180; Dd5xXs+c  
Hr<C2p^a  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); kToVBU$  
g<rKV+$6  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); InPy:}  
CEX}`I*-  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); t;LX48 TQ  
7Js>!KR  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 7dlKdKH  
8R)D! 7[l  
figure(1) `z?KL(rI  
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subplot(1,2,1); $p0 /6c  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) U7]<U-.&  
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legend('r_p','r_s','|r_p|','|r_s|') ^)hAVf~E  
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xlabel('\theta_i') yWv<A^C &  
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ylabel('Amplitude') 62MRI    
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) mZbWRqP[|_  
@3 -,=x  
axis([0 90 -1.5 1.5]) Gq0]m  
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grid on r)6uX  
%qS]NC  
subplot(1,2,2); ^zaKO'KcV  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) A[^qq UL'  
z29qARiX  
legend('t_p','t_s','|t_p|','|t_s|') n%0]V Xx#  
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xlabel('\theta_i') mFqSD  
tLD~  
ylabel('Amplitude') KMK&[E#r  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) tjZ\h=  
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axis([0 90 -0.5 3]) $=PWT-GIR  
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grid on 4AY _#f5u  
]a$Wxvgq  
Rp=abs(rp).^2; =ze FK_S!  
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Rs=abs(rs).^2; /OQK/ t63  
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Rn=(Rp+Rs)/2; a -xW8  
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Tp=1-Rp; QP6z?j.  
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Ts=1-Rs; ^Yj"RM$;N  
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Tn=(Tp+Ts)/2; "wA0 LH_  
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figure(2) V19e>  
I86e&"40  
subplot(1,2,1); xn(+G$m  
D9qX->p  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) )t|^Nuj8  
cI*KRC U  
legend('R_p','R_s','R_n') cPpu  
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xlabel('\theta_i') HQq`pG%m6  
n,t6v5>88  
ylabel('Amplitude') 79)A%@YHQQ  
_9D|u<D  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3g4e' ]t  
}qc#lz  
axis([0 90 0 1]) zuUT S[  
a @6^8B?w;  
grid on JNh=fvO2i  
j((hqJr  
subplot(1,2,2); _h0-  
JXpoCCe  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) n!GWqle  
CN$I:o04C  
legend('T_p','T_s','T_n') \r)%R5_CQ  
y^2#9\}K  
xlabel('\theta_i') :3JCvrq  
Ci;h  
ylabel('Amplitude') N<9w{zIK(  
D9ANm"#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |y.zo cBj  
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axis([0 90 0 1]) _1sP.0 t  
|5W8Q|>%  
grid on F[5S(7M 7  
l;Q >b]DZ  
[attachment=80481] ~eDI$IO  
j5kA^MTG  
[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 GMdI0jaG#  
jabil 2025-03-07 09:40
Thanks
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