[分享]利用MATLAB光学仿真（1） [复制链接]

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 Dh)(?"^9A  
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1、光疏射向光密 4z,/0  
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clear 4,?WNPqo  
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close all P5&8^YV`N  
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n1=1,n2=1.45; Y {|is2M9'  
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theta=0:0.1:90; [rReBgV  
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a=theta*pi/180; @oQ"FLF.  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); RSup_4A  
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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)); kQO-V4z!  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); jt3=<&*Bm  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); I8{ mkh  
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figure(1) K7wU tg  
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subplot(1,2,1); =-/sB>-C  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Hd_,`W@
 
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legend('r_p','r_s','|r_p|','|r_s|') "b\@.7".  
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xlabel('\theta_i') )a<MW66  
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ylabel('Amplitude') >~L0M  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \Yh*ywwP#  
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axis([0 90 -1 1]) ':]Hj8t_  
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grid on %$67*pY'JH  
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subplot(1,2,2); -Sa-eWP  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ,@\z{}~v  
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legend('t_p','t_s','|t_p|','|t_s|') A[uB)wWsn  
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xlabel('\theta_i')  '3xK1Am  
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ylabel('Amplitude') 9*VL|  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) sW
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axis([0 90 0 1]) b(t8TR#-  
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grid on d '\^S}  
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Rp=abs(rp).^2; .9vt<<Kwh  
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Rs=abs(rs).^2; kt+h\^g  
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Rn=(Rp+Rs)/2; O)D$
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Tp=1-Rp; #"fn;  
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Ts=1-Rs; tTT :r),}$  
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Tn=(Tp+Ts)/2; h=^UMat-  
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figure(2) l[C_vUg  
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subplot(1,2,1); uZ'(fn
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) OxUc,%e9P  
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legend('R_p','R_s','R_n') 9+ |W;  
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xlabel('\theta_i') ^ 4*#QtO  
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ylabel('Amplitude') eKf5orN  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) N1"p ;czK  
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axis([0 90 0 1]) G++<r7;x  
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grid on uvJ&qd8M  
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subplot(1,2,2); )Br#R:#  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) z m]R76  
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legend('T_p','T_s','T_n') 204"\mv  
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xlabel('\theta_i') u"m TS&  
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ylabel('Amplitude') ct<X
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) C_yNSD  
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axis([0 90 0 1]) /IF?|71,m  
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grid on 5rmQ:8_5   
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2、光密射向光疏 0d1!Q!PH3  
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clear 6/T/A+u  
:qzhkKu  
close all ^bfU>02Q6p  
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n1=1.45,n2=1; \DWKG~r-%  
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theta=0:0.1:90;  wG6Oz2(  
U"oHPK3"TA  
a=theta*pi/180; Y88N*axDW.  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 
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6q!Q(_  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 2#
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); \RRSrPLd-  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); j5A>aj  
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figure(1) =#[t!-@  
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subplot(1,2,1); B-$zioZ  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) qk>SM|{  
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legend('r_p','r_s','|r_p|','|r_s|') qnnRS  
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xlabel('\theta_i') "]Uj _d  
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ylabel('Amplitude') <:T/hm$  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <a&xhG}  
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axis([0 90 -1.5 1.5]) I+SfZ:q^  
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grid on 7i'clB9!  
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subplot(1,2,2); Sa0IRC<LV  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) U2tgBF?)A  
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legend('t_p','t_s','|t_p|','|t_s|') >j*0fb!:]  
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xlabel('\theta_i') "%S-(ue:  
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ylabel('Amplitude') ,fN <I  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) J><hrZ  
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axis([0 90 -0.5 3]) }NRt:JC  
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grid on 9}Za_ZgG  
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Rp=abs(rp).^2; ~l.C
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Rs=abs(rs).^2; +2}Ar<elP  
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Rn=(Rp+Rs)/2; ^,?>6O  
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Tp=1-Rp; -nX{&Z3-s  
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Ts=1-Rs; m=/HUt3(&0  
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Tn=(Tp+Ts)/2; o1b.a*SZ  
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figure(2) 4>H0a  
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subplot(1,2,1); )"|wWu  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) w)1SZ}  
HU|qeSyel  
legend('R_p','R_s','R_n') 8wZ $Hq  
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xlabel('\theta_i') .x/H2r'
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ylabel('Amplitude') *UJB*r  
dl |$pm@x  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,zH\P+*  
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axis([0 90 0 1]) !U(KQ:j  
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grid on b j<T`M!  
7~ZG"^k  
subplot(1,2,2); i.
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) cXN0D\%`  
'd;aAG  
legend('T_p','T_s','T_n') V\FlKC  
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xlabel('\theta_i') 3/& |Z<f  
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ylabel('Amplitude') |Xd&aQ  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) XRyeEwA;pp  
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axis([0 90 0 1]) #^ .G^d(=  
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grid on 99]s/KD2yb  
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感谢楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

谢谢了楼主分享

thanks

谢谢了楼主分享

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