{"id":370623,"date":"2024-07-05T03:43:38","date_gmt":"2024-07-05T03:43:38","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/guanyutongguogongshidedaodephenyumode-expansiondedaodejieguobuyizhidewenti\/"},"modified":"2024-07-05T03:43:38","modified_gmt":"2024-07-05T03:43:38","slug":"guanyutongguogongshidedaodephenyumode-expansiondedaodejieguobuyizhidewenti","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/guanyutongguogongshidedaodephenyumode-expansiondedaodejieguobuyizhidewenti\/","title":{"rendered":"\u5173\u4e8e\u901a\u8fc7\u516c\u5f0f\u5f97\u5230\u7684P\u548cN\u4e0eMODE EXPANSION\u5f97\u5230\u7684\u7ed3\u679c\u4e0d\u4e00\u81f4\u7684\u95ee\u9898"},"content":{"rendered":"

\u5c0a\u656c\u7684\u8001\u5e08\uff1a \u6700\u8fd1\u6211\u5728\u7528\u516c\u5f0f\u9a8c\u8bc1MODE EXPANSION\u4e2d\u7684P\u548cN\uff1b\u6211 \u67e5\u5f97\u4fe1\u606f\u5f97 Nm = 0.5. ∗ R Em × H∗ m · dS P in = 0.5. ∗ R Ein × H∗ m · dS \u90a3\u4e48\u6211\u5316\u7b80\u5f97\u5230 Nm = 0.5. ∗ dx. ∗ dy P (Exm ∗ Hym∗ − Eym ∗ Hxm∗ ) Pm = 0.5. ∗ dx. ∗ dy P (Exin ∗ Hyin∗ − Eyin ∗ Hxin∗ ) FDTD\u4ee3\u7801\u5982\u4e0b selectall; delete; um=10^(-6); addrect; set(‘x’,0); set(‘x span’,0.22*um); set(‘y’,0); set(‘y span’,0.5*um); set(‘z min’,-3*um); set(‘z max’,10*um); set(‘material’,’‘);
\nset(‘index’,10);
\naddfdtd;
\nset(‘mesh type’,”custom non-uniform”);
\nset(‘define x mesh by’,”maximum mesh step”);
\nset(“dx”,0.008*um);
\nset(‘define y mesh by’,”maximum mesh step”);
\nset(“dy”,0.008*um);
\nset(‘define z mesh by’,”maximum mesh step”);
\nset(“dz”,0.05*um);
\nset(‘x’,0);
\nset(‘x span’,1*um);
\nset(‘y’,0);
\nset(‘y span’,1*um);
\nset(‘z’,2*um);
\nset(‘z span’,6*um);
\naddmode;
\nset(“injection axis”,”z”);
\nset(“wavelength start”,1.55*um);
\nset(“wavelength stop”,1.55*um);
\nset(“x”,0);
\nset(“x span”,2*um);
\nset(“y”,0);
\nset(“y span”,2*um);
\nset(“z”,-0.1*um);
\naddpower;
\nset(“name”,”T”);
\nset(‘x’,0);
\nset(‘x span’,2*um);
\nset(‘y’,0);
\nset(‘y span’,2*um);
\nset(‘z’,3.5*um);
\nset(“output Px”,1);
\nset(“output Py”,1);
\nset(“output Pz”,1);
\naddmodeexpansion;
\nset(“name”,”modeexpansion”);
\nset(“monitor type”,”2D Z-normal”);
\nset(‘x’,0);
\nset(‘x span’,2*um);
\nset(‘y’,0);
\nset(‘y span’,2*um);
\nset(‘z’,3.5*um);
\nsetexpansion(“T”,”T”);
\nrun;
\nclear;
\nT_fund=getresult(‘modeexpansion’,’expansion for T’);
\nPin=T_fund.getattribute(‘P’);
\nNm=T_fund.getattribute(‘N’);
\nExin=pinch(getresult(‘T’,’Ex’));
\nEyin=pinch(getresult(‘T’,’Ey’));
\nHxin=pinch(getresult(‘T’,’Hx’));
\nHyin=pinch(getresult(‘T’,’Hy’));
\ndx=getdata(‘source’,’delta_x’);
\ndy=getdata(‘source’,’delta_y’);
\nchang=getresult(“source”,”mode profile”);
\nExm=pinch(chang.getattribute(“Ex”));
\nEym=pinch(chang.getattribute(“Ey”));
\nHxm=pinch(chang.getattribute(“Hx”));
\nHym=pinch(chang.getattribute(“Hy”));
\nmatlabsave(“modeexpansion \u7ed3\u679c\u9a8c\u8bc1”);
\n\u7136\u540ematlab\u4ee3\u7801\u5982\u4e0b
\nPin1=Exin.*conj(Hyin)-Eyin.*conj(Hxin);
\nPin1=sum(Pin1);
\nPin1=Pin1′;
\nPin1=sum(Pin1);
\nPin1=0.5.*dx(1,1).*dy(1,1).*Pin1;<\/p>\n

Nm1=Exm.*conj(Hym)-Eym.*conj(Hxm);
\nNm1=sum(Nm1);
\nNm1=Nm1′;
\nNm1=sum(Nm1);
\nNm1=0.5.*dx(1,1).*dy(1,1).*Nm1;
\n\u7ed3\u679c\u5f97\u5230<\/object><\/p>\n

Nm=4.3394e-16+1.4132e-29i;Pm=4.3393e-16-1.6214e-18i.<\/p>\n

Nm1=1.0921e-16;Pin1=1.0848e-16+4.0534e-19i;<\/p>\n

\u6211\u6ce8\u610f\u5230\u516c\u5f0f\u8ba1\u7b97\u548c\u4eff\u771f\u5f97\u5230\u7684\u6709\u4e00\u4e2a4\u500d\u5173\u7cfb\uff0c\u4f46\u6211\u4ecd\u7136\u4e0d\u6e05\u695a\u5230\u5e95\u4e3a\u4ec0\u4e48\u7ed3\u679c\u4e0d\u4e00\u6837\u3002<\/p>\n","protected":false},"template":"","class_list":["post-370623","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t