| 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 TU O*w 5tcJTz 1、光疏射向光密 YnwP\Arfq l>?k>NEpP clear g6(u6%MD !~a1xI~s close all wKj0vMW =Y<RG"]a&J n1=1,n2=1.45; @WO>F G3 ?vocI theta=0:0.1:90; .Eg[[K_iD M|\C@,F]8 a=theta*pi/180; +^V%D!.$@ PP!}w rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Jsw%.< j[&C6l+wH rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); -: 8[ 5}he)2*uD tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); F'3-*>]P JTfG^Nv>K ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6^vHFJ$ \"AzT{l!; figure(1) cP&XkAQ TptXH? subplot(1,2,1); FX:'38-fk WoX,F1 o plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) V8IEfU U(u$5 legend('r_p','r_s','|r_p|','|r_s|') r^$WX@ t& -A;4"" xlabel('\theta_i') N
Uq'96{Y EP}NT)z,{ ylabel('Amplitude') 0\Ga&Q0-(O riY[p, title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) wwh)B92Y5 drEND`,@6| axis([0 90 -1 1]) oZ"93]3- 5$Aiez~tBq grid on _)F0oC { &~a/Upz0]_ subplot(1,2,2); HA::(cXL \<4Hp_2? plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;OY*`(Id )kuw&SH, legend('t_p','t_s','|t_p|','|t_s|') 7(1UXtT "
H;iAv xlabel('\theta_i') LSN%k5G7. p@bcf5' ylabel('Amplitude') T!pjv8y@R 'k9dN
\ev title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n;,>Fv {5N!udLDr5 axis([0 90 0 1]) TWk1`1| L2m~ GnP|? grid on PTFe>~vr* Fu6~8uDV{{ Rp=abs(rp).^2; yHt
`kb2 .*+KQA8 Rs=abs(rs).^2; kEpCF:@A rP7~R Rn=(Rp+Rs)/2;
wk (}q t ]yD95| Tp=1-Rp; OJ Y_u[ cp\A
xWtUZ Ts=1-Rs; c<n <!!vi AB1,G|L Tn=(Tp+Ts)/2; Z2wgfP` =zXii{t figure(2) yk7 l{F |)\{Rufb subplot(1,2,1); GVt}\e~" ("$ ,FRTQ: plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) b&~s}IX T6=q[LpsKN legend('R_p','R_s','R_n') 1=.+!Tg A/+bwCDP xlabel('\theta_i') >:yU bo) 0zvA>4cq) ylabel('Amplitude') "Ooc;xD3< uY'77,G_J title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3(/J(8 !1s^TB>N axis([0 90 0 1]) XK7$Xbd Q-,,Kn grid on GI40Ztms [~_()i=Y subplot(1,2,2); ;`P}\Q{ uh_2yw_ plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 2UGnRZ8:1Y lImg+r T{ legend('T_p','T_s','T_n') 16N+ nC>'kgRt xlabel('\theta_i') K@UQ O CYCG5)<9 ylabel('Amplitude')
mtQlm5l Ws>2S title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }co*%F{1 Zg#VZg1
2 axis([0 90 0 1]) 3.^Tm+ C MPg"n-g* grid on Qso"jYl< |`50Tf\J [attachment=80479] It
.` }&h*bim [attachment=80478] Cm5:_K`;]
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