software to fit optical spectra - Quantum Materials Group

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4-2); nColor Integer The curve color (the same as for command AddDataCurve) Assumed to be 0 Scale Double Curve scale Assumed to be 1.0 (not scaled) Shift Double Curve shift Assumed to be 0.0 (not shifted) Command name: DeleteDataCurve Description: Deletes data curve from the graph. Parameters: Name Type Description What if omitted GraphNo Integer Graph identity number No action is taken DatasetNo Integer Number of the dataset, which gives the curve to be deleted No action is taken Command name: DeleteModelCurve Description: Deletes model curve from the graph. Parameters: Name Type Description What if omitted GraphNo Integer Graph identity number No action is taken ModelNo Integer Number of the model, which gives the curve to be deleted No action is taken Quantity Text Abbreviation of the quantity, which corresponds to the curve to be deleted No action is taken Command name: ExportModelCurve Description: exports the spectrum of the specified model quantity to a file Parameters: Name Type Description What if omitted File Text The name of the file (including file path, if the file is not in the same directory, as macro file), i.e. “E1.DAT”, or “C:\MYDATA\E1.DAT”, or “..\EPS\E2.DAT” No action is taken ModelNo Integer The model number No action is taken Quantity Text Abbreviation of the quantity to be exported No action is taken Guide to RefFIT Page 90
XMin Double Minimal X (frequency) value No action is taken XMax Double Maximal X value No action is taken XPts Number Number of points to be exported No action is taken XGrid Number =1: linear grid =2: logarithmic grid Assumed to be 1 4.11.7. Experimental parameters macro commands Command name: ExpParams Description: shows the “Experimental parameters” window on the screen and sets its position Parameters: Name Type Description What if omitted XPos Integer Horizontal position of the left side (in The position is not screen pixels) changed YPos Text Vertical position of the top side (in The position is not screen pixels) changed Command name: SetExpParam Description: Sets the value and the fitting activity of the specified experimental parameter Parameters: Name Type Description What if omitted ParamName Text The name of the parameter. The possible names are: “Sample thickness” “Thickness spread” “Angle of incidence” “Angle spread” "Scaling factor of R" "Scaling factor of T" No action is taken Value Double The new value The current value of the parameter is unchanged FitActive Integer =0 – not active in fitting (fixed) The current fitting =1 – active in fitting (free) activity of the parameter is unchanged 4.11.8. Fitting macro commands Command name: WindowFit Description: shows the “Fit” window on the screen and sets its position. Note: this command is not necessary to do a fit. Parameters: Guide to RefFIT Page 91
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Last updated: 20.04.2004 Guide to R
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4.8. Dataset manager ..............
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that time. The later development of
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1.4. Let’s keep in touch Please,
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2.1.1. Levenberg-Marquardt algorith
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Guess initial parameters p , , p 1
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achieve a proper ‘balance’ betw
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The third requirement is that at ve
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Equation 2-19 is useful to estimate
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The first problem is that the Loren
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The problem can be circumvented by
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In these cases the fitting of the d
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3. Tutorial This chapter shows how
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Figure 3-3 Graph contents window is
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Figure 3-7 Click the button and in
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If you are still far from this fitt
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Figure 3-15 The model and experimen
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Figure 3-18 The “Graph properties
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Figure 3-20 Loading the reflectivit
Page 39 and 40: Figure 3-22 The general RefFIT view
Page 41 and 42: Figure 3-25 The general RefFIT view
Page 43 and 44: MainWindow(XPos = 0, YPos = 0, Widt
Page 45 and 46: emarkable ‘anomaly’, related to
Page 47 and 48: ###################################
Page 49 and 50: # restores the original application
Page 51 and 52: 4. Reference 4.1. System requiremen
Page 53 and 54: Figure 4-2 The “Parameter control
Page 55 and 56: The model file stores information a
Page 57 and 58: considering multiple (Fabri- Perot)
Page 59 and 60: optical conductivity in practical u
Page 61 and 62: Kronig friendly, so be careful! “
Page 63 and 64: function. This command cannot be us
Page 65 and 66: Iinc Itrans ε ε ( 1) ( 2) … (n)
Page 67 and 68: In ellipsometry the complex ratio
Page 69 and 70: ` Figure 4-10 The experimental conf
Page 71 and 72: Here ω p and ∞ ε are considered
Page 73 and 74: points “#pts” and the grid type
Page 75 and 76: 4.9.2. Graph contents To set the gr
Page 77 and 78: Available ChiSq terms and click the
Page 79 and 80: At each iteration a linear equation
Page 81 and 82: Before a macro is actually executed
Page 83 and 84: Quantity Text Abbreviation of the q
Page 85 and 86: Parameters: Name Type Description W
Page 87 and 88: “Wp” - plasma frequency; “G
Page 89: ShowLine Integer =12: Chalk =13: Br
Page 93 and 94: always come in pairs. All commands
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