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The x-axis is the in-plane vector; the y-axis is K, the power coupling coefficient (dissipation spectral density). Integrating K over the in-plane vector yields the fractional energy in each optical mode (Top Outcoupling, Waveguide, Evanescent, etc.) — see the ",[222,223,224],"a",{"href":96},"Mode"," page for those fractions.",[227,228,230],"h2",{"id":229},"reading-the-chart","Reading the chart",[232,233,235],"h3",{"id":234},"axes","Axes",[237,238,239,252],"table",{},[240,241,242],"thead",{},[243,244,245,249],"tr",{},[246,247,248],"th",{},"Axis",[246,250,251],{},"Meaning",[253,254,255,269],"tbody",{},[243,256,257,261],{},[258,259,260],"td",{},"X-axis",[258,262,263,264,268],{},"In-plane vector, determined by the ",[265,266,267],"strong",{},"In-plane Vector Type"," selected in the Optics page",[243,270,271,274],{},[258,272,273],{},"Y-axis",[258,275,276],{},"K (power coupling coefficient / dissipation spectral density)",[218,278,279],{},"Three in-plane vector types are available:",[237,281,282,295],{},[240,283,284],{},[243,285,286,289,292],{},[246,287,288],{},"Type",[246,290,291],{},"Label",[246,293,294],{},"Notes",[253,296,297,310,322],{},[243,298,299,305,307],{},[258,300,301],{},[302,303,304],"code",{},"Effective Index (nEff)",[258,306,304],{},[258,308,309],{},"Default; range 0–2.0, step 0.01",[243,311,312,317,319],{},[258,313,314],{},[302,315,316],{},"In-plane k",[258,318,316],{},[258,320,321],{},"Normalized in-plane wavevector; range 0–1, step 0.01",[243,323,324,329,331],{},[258,325,326],{},[302,327,328],{},"In-plane u",[258,330,328],{},[258,332,333],{},"Equals sin(θ_e); range 0–1, step 0.01",[218,335,336,337,340],{},"All three parameterizations describe the same physical quantity. The physical meaning and mode-boundary derivations are covered in ",[222,338,339],{"href":41},"Emission Theory",".",[232,342,344],{"id":343},"polarization-and-direction","Polarization and Direction",[218,346,347],{},"The legend controls are divided into two groups:",[237,349,350,360],{},[240,351,352],{},[243,353,354,357],{},[246,355,356],{},"Control",[246,358,359],{},"Options",[253,361,362,381],{},[243,363,364,369],{},[258,365,366],{},[265,367,368],{},"Polarization",[258,370,371,374,375,374,378],{},[302,372,373],{},"TE"," / ",[302,376,377],{},"TM",[302,379,380],{},"Total",[243,382,383,388],{},[258,384,385],{},[265,386,387],{},"Direction",[258,389,390,374,392,374,395],{},[302,391,380],{},[302,393,394],{},"Top",[302,396,397],{},"Btm",[399,400,401,407],"ul",{},[402,403,404,406],"li",{},[302,405,380],{}," (Direction) = Top + Btm combined",[402,408,409,411,412,414,415,417],{},[302,410,373],{}," sums only transverse-electric components; ",[302,413,377],{}," sums only transverse-magnetic; ",[302,416,380],{}," (Polarization) = TE + TM",[218,419,420],{},"The chart below shows the effect of the Direction control on the power dissipation spectrum:",[218,422,423],{},[424,425],"img",{"alt":426,"src":427},"Direction control example","/images/emission/result-power-dissipation-direction.png",[227,429,431],{"id":430},"wavelength-sweep","Wavelength sweep",[218,433,434,435,438,439,442],{},"When the ",[265,436,437],{},"Wavelength Mode"," for the Power Dissipation detector is set to ",[302,440,441],{},"Sweep",", the data becomes two-dimensional (in-plane vector × wavelength). Switch to the Heatmap chart type to view the full distribution at once:",[218,444,445],{},[424,446],{"alt":447,"src":448},"Power dissipation heatmap (wavelength sweep)","/images/emission/result-power-dissipation-heatmap.png",[218,450,451],{},"In the heatmap:",[399,453,454,457,460],{},[402,455,456],{},"The horizontal axis is the in-plane vector; the vertical axis is wavelength",[402,458,459],{},"Color intensity encodes K magnitude",[402,461,462],{},"Waveguide modes appear as localized bright bands at characteristic vector values",[218,464,465,466,469],{},"When the wavelength mode is ",[302,467,468],{},"Single",", the chart is fixed to Line; no chart-type toggle is shown.",[471,472,474,475,478,479,481,482,484],"callout",{"icon":473},"i-lucide-info","The Power Dissipation detector does not support the ",[265,476,477],{},"Weighted Average"," wavelength mode. Only ",[302,480,468],{}," and ",[302,483,441],{}," are available.",[227,486,488],{"id":487},"mode-boundaries","Mode boundaries",[218,490,491],{},"Several critical values of nEff (or their k/u equivalents) divide the K spectrum into distinct optical mode regions. Using nEff as the axis:",[237,493,494,503],{},[240,495,496],{},[243,497,498,501],{},[246,499,500],{},"Boundary",[246,502,251],{},[253,504,505,516],{},[243,506,507,513],{},[258,508,509,512],{},[302,510,511],{},"nEff = n_s"," (substrate index)",[258,514,515],{},"Divides substrate modes from waveguide modes",[243,517,518,524],{},[258,519,520,523],{},[302,521,522],{},"nEff = n_e"," (EML index)",[258,525,526],{},"Divides waveguide modes from evanescent (SPP) modes",[399,528,529,535,541],{},[402,530,531,534],{},[302,532,533],{},"nEff \u003C n_s",": outcoupling region (TOC / BOC)",[402,536,537,540],{},[302,538,539],{},"n_s ≤ nEff \u003C n_e",": waveguide modes — light totally internally reflected within the organic stack",[402,542,543,546],{},[302,544,545],{},"nEff ≥ n_e",": evanescent modes — predominantly SPP loss",[218,548,549,550,552,553,340],{},"Sharp peaks in the curve correspond to resonant coupling into guided modes; the characteristic peak above ",[302,551,522],{}," is usually an SPP. The physical derivations and definitions of all mode boundaries are in ",[222,554,339],{"href":41},[471,556,559],{"icon":557,"color":558},"i-lucide-triangle-alert","amber","Mode analysis (on the Mode page) requires n_t or n_b \u003C n_s \u003C n_e. If this ordering is not satisfied, the mode-integration boundaries are invalid and Mode page results will be inaccurate.",[227,561,563],{"id":562},"controls","Controls",[218,565,566,567,570,571,574,575,577],{},"Image export and copy (",[302,568,569],{},"Export Image",", ",[302,572,573],{},"Copy Image",") and other common controls are shared with every result page — see ",[222,576,91],{"href":92},". Page-specific controls:",[237,579,580,589],{},[240,581,582],{},[243,583,584,586],{},[246,585,356],{},[246,587,588],{},"Description",[253,590,591,601],{},[243,592,593,598],{},[258,594,595],{},[302,596,597],{},"Export CSV",[258,599,600],{},"Export all K data (in-plane vector × wavelength × polarization × direction)",[243,602,603,606],{},[258,604,605],{},"Chart type selector",[258,607,608],{},"Line or Heatmap — available only in Sweep mode",[218,610,611],{},"If the page shows \"No data\", the most common causes are:",[399,613,614,617,624],{},[402,615,616],{},"no calculation has been run yet",[402,618,619,620,623],{},"no layer is marked as emissive (enable the ",[302,621,622],{},"Emis."," toggle in the Structure page)",[402,625,626],{},"Power Dissipation is not checked in the Emission detector lane of the Optics page",[227,628,630],{"id":629},"next","Next",[399,632,633,638],{},[402,634,635,636],{},"View per-mode energy fractions: ",[222,637,224],{"href":96},[402,639,640,641],{},"Understand K integration, nEff boundaries, and mode-partition derivations: ",[222,642,339],{"href":41},{"title":644,"searchDepth":645,"depth":645,"links":646},"",2,[647,652,653,654,655],{"id":229,"depth":645,"text":230,"children":648},[649,651],{"id":234,"depth":650,"text":235},3,{"id":343,"depth":650,"text":344},{"id":430,"depth":645,"text":431},{"id":487,"depth":645,"text":488},{"id":562,"depth":645,"text":563},{"id":629,"depth":645,"text":630},"Read dissipated power versus in-plane wave vector","md",null,{},true,{"title":119,"description":656},"Fhw0KCC4qSeHzOLb4FCvLZ7s03Kwy-rnqL9R9kZDyUg",[664,666],{"title":115,"path":116,"stem":117,"description":665,"children":-1},"Phase, group delay, group delay dispersion, and differential group delay",{"title":123,"path":124,"stem":125,"description":667,"children":-1},"Angular and spectral emission intensity, and normalized views",1782152029752]