Ψ, Δ — what polarised light reveals about a thin film, from the nanometre to the micrometre
ELLP helps labs and manufacturers truly get to grips with ellipsometry — beyond the manufacturer's initial training, over the long run, on your own application.
An ellipsometer is bought with great ambitions for characterisation. It arrives with a dense initial training, packed into a few days, scheduled around delivery rather than around a real learning pace.
A few months later, use has often shrunk to two or three copied recipes — without the user really knowing what they're measuring, or why the model they were left with still works.
It isn't an instrument problem: today's ellipsometers are remarkably accurate. It's a problem of transmission. And that is exactly what ELLP's support fills in — long after installation, as often as needed.
Few people have seen the technique from every one of these vantage points. It is this overall view, more than a single specialty, that ELLP puts at your service.
Contributions to the development of instruments, control and analysis software, and measurement protocols. This expertise is backed by scientific publications and talks given at international ellipsometry conferences — an understanding of what happens on both sides of the screen.
Commissioning and qualification of numerous instruments, all over the world — bench-top systems as well as in situ and in line systems, in production environments as much as in research labs.
A great many demonstrations carried out in support of sales — knowing how to show what an instrument can really do, on a real sample, and why it does it.
Training users in ellipsometry across every continent. This mission of ongoing usage support is what ELLP places at the heart of its activity.
Ellipsometer manufacturers rightly offer training when the instrument is delivered. Useful, but designed to get a piece of software running — rarely to support a use that evolves over time.
One-on-one or in a small team, on-site or remote, matched to your level and your application — not to a generic programme.
Model review, help interpreting results, methodological unblocking when a sample won't cooperate.
Choosing a measurement protocol, commissioning an instrument, gradually building up a team's skills.
A perspective that depends on no manufacturer — bench-top, in situ or in line, whatever the brand of your instrument.
A career devoted entirely to ellipsometry, from 1988 to 2022: instrument and software design, installations on five continents, applications engineering, training users around the world.
ELLP carries that same mission forward, in an independent form: putting this experience directly at the service of those who use — or finally want to properly use — their ellipsometer.
An under-used instrument, a training session to organise, a measurement that doesn't fit the model: a conversation is often all it takes to find the way forward.
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