EulenStudio Optical Thin Film Modelling Software

The EulenStudio modules

Each module answers one question, and each has its own user.

1. 01

   EulenChar

   For material characterisation

   Provides the dispersion model.

   n and k of your own materials, fitted from your own spectra: transmission, reflection and optionally ellipsometry, several samples at once, with material properties shared between stacks or fitted independently. The result is a dispersion model rather than a table: the form every other module reads.

   Then what a pure design tool cannot do: fit coatings from interrupted runs, and map thickness across the substrate holder — your machine’s uniformity becomes a measured distribution that later feeds the tolerance calculation.

   You get n(λ) & k(λ)dispersion modelsmulti-pass fits, one shared materialmeasured uniformity map

   Flows to → EulenDesign materials for synthesis→ EulenModel refits on real n & ksaved once — every module reads it
2. 02

   EulenDesign

   For coating designers

   Find a coating that meets the specification.

   You state the requirement — spectral bands, colour, integral quantities, phase — and EulenDesign grows the stack against it with needle synthesis and topology generation. For Filter and Optics, the engine is built for the GPU: it evaluates many times more candidates in the same time — and so finds designs a slower search never gets to see.

   The requirement carries what you actually manufacture — a single coating, a set, a whole glazing unit. And before the first batch, Monte Carlo tolerance and yield analysis says which layers your process has to hold and what your measurement can resolve at all.

   You get a layer structure that meets the specMonte-Carlo yield figurewhich layers your process has to holdwhich measurement can resolve them

   Flows to → EulenModel design + specification, one object
3. 03

   EulenModel

   For process engineers

   Decide whether a model and a design can be trusted.

   Fitting a measured spectrum back to thicknesses is standard. The harder question: what can the data identify at all, how certain is the fit, and how robust is the result under the process’s normal scatter?

   The specifications live here too — bands with pass / warning / fail verdicts, on the same object the designer authored. The verdict in production and the target in design are the same thing, not two spreadsheets drifting apart.

   You get refitted thicknessesidentifiability · confidence · robustnesspass / warn / fail bandsthe prepared product

   Flows to → EulenControl the product goes to the machine→ EulenLearn fits & verdicts, as history

1. 04

   EulenControl

   For plant operators

   Measure, calculate and correct at the machine.

   EulenControl supports the person who runs the coater, and it takes the shape your line needs. It can be a full interface that computes the layer thicknesses and shows the operator the change that best keeps the coating inside the specification. It can be a display only, while the software talks to the machine directly. Or it works invisibly in the background, driving the interfaces and the calculations, while your operators keep working in your existing custom solution or in the coater’s own software. Where it helps, the tool also drives spectrometers directly, or talks to the manufacturer’s magnet-bar control software.

   EulenControl connects to whatever your line allows and fills the gaps with standard components from EulenStudio, combined with customised software where needed to find the best solution for you.

   You get thicknesses & constants in real timesupports your closed loopverdicts against the product's own bands

   Flows to → the coating on your line→ EulenLearn every run's history
2. 05

   EulenLearn

   For process and quality management

   Read the production history as a process, not as single runs.

   One coating is a measurement; a thousand coatings are a process. EulenLearn reads the history the other modules leave behind and answers what only becomes visible at that scale: how the line drifts, which layer a deviation belongs to, what a correction would have done to batches that already ran.

   It is valuable before any coater hardware is connected: it already shows everything the spectrometer and the fits have left in the database. With coater data per pane or batch, power and gas-flow changes line up with what the model sees: which model needs improvement, and what is safe to run in closed loop.

   You get drift over weeks, not runswhich layer a deviation belongs tomaintenance event or noisewhat-if on batches already run

   Flows back → EulenModel improved models→ EulenControl vetted corrections→ a better next batch
3. 06

   EulenCoat

   For describing your coater

   Turns time-based line data into data per pane or batch.

   To learn from your production data, time-based hardware data must first become product data: which pane, which batch has seen what power. EulenCoat serves exactly this purpose: it describes your coater — every element at its position in millimetres, the transport speed, what the machine can already export. With that description, time-based coater exports and spectral measurements at their positions come together on the same pane or batch — exactly the view EulenLearn works on.

   It starts from what you already have. If your systems already deliver data per pane or batch, you do not need EulenCoat: we connect to the software or database you can provide — then a hardware change lives in your system alone, never maintained twice. Where no import is possible, EulenCoat is the surface where your team maintains the coater itself: several coaters, several configurations per coater, updated whenever hardware is replaced — so you never depend on our services and never have to share coater data.

   You get your coater, described onceelements at their positions in mmdata per pane or batch, not per timestamp

   Flows to → EulenLearn which pane or batch saw what power