Ocean Optics NanoCalc - Manual (Page 59)

Ocean Optics Germany GmbH Thin Film Metrology
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9.1 EditStructure button
You will see this button and this window only if you do not use a SCOUT recipe= if you use NanoCalc’s
internal mode (not yet fully supported). You could get good results, but only for the extraction of
thicknesses (not dispersion)
In this menu “edit layer structure” you have to define your own layer structure
9.1.1 General
The full menu EditStructure is only available if you do not use SCOUT.
If you use SCOUT only the reference material may be changed.
In the menu EditStructure you may enter:
1. The type of catalogue like:
others
nitrides
semiconductors
.....
2. The type of material within one specified catalogue, like „oxides“:
Cauchy_SiO
2
CuO
TiO
2
......
3. The number of layers ( in the present version: 1 to 10)
4. The thickness of all layers in nanometers. This value is regarded as an EXACT value for simulations and
as a GUESS for analyzing measured spectra. Whether this guess is used (or not) will depend on the
measurement mode.
5. A lower and an upper limit of the thickness. These values are NOT used in simulations. Whether these
limits are used for measuring purposes (or not) will depend on the measurement mode.
6. An option „fixed“:
If you press this option, the lower and upper limits are fixed to the value of the thickness of the layer.
Such a layer is regarded as „well known“.
Restriction to NanoCalc_1: If you have two layers and one of them is fixed (= „well-known“), NanoCalc is