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Thin-Film Coating Simulator
Model any coating free. Go Pro to design one: set the spectrum you need, and the optimizer builds the stack, then shows how it holds up against real deposition error.
Free
$0
Up to 24 layers
10 without an account
Model a stack you already have.
- Reflectance, transmittance and absorption across wavelength, at any angle and polarization
- Edit the stack freely: add, remove and reorder layers, by thickness or quarter-wave
- Start from AR coatings, mirrors, bandpass, edge and notch filters
- With a free account: field profile, layer absorption, sweeps, admittance, ellipsometry and CSV export
Thin-Film Pro
$349/yearor $35/month
Annual is two months free.
Up to 500 layers
Let the optimizer build it.
- Hit your target: reflectance, transmittance or absorption at the wavelengths, angles and polarizations you choose, each weighted
- Refine or grow: the optimizer tunes thicknesses, leaves locked layers alone, and adds new layers where they help
- Know your yield: how far the spectrum drifts under thickness and index error, which layer costs most, and the share of runs that still pass
- Send it on: an angle-resolved table of your coating, ready for Illumination Analyzer Pro to trace
- Keep your work: Plus is included
Thin-Film Pro has no free trial.
How it works →How it was checked →
Questions
Monthly or annual: which should I pick?
Annual costs less: Thin-Film Pro is $349 a year or $35 a month, so a year of monthly comes to $420. Monthly makes sense if you need it for one project. To switch, open the billing portal from your account page and pick the other plan. If anything goes wrong, email support@photizon.com and we'll move you at your next renewal.
I already have Plus. What happens if I buy a Pro product?
The Pro product includes Plus, so after you subscribe, cancel Plus from your billing portal so you're not paying for storage twice. If the Pro product is Thin-Film Pro, email support@photizon.com and we'll refund the unused part of your Plus term.
How do I cancel, and what happens to my data?
From your account page, through the Stripe customer portal. No email, no form, no retention call. Canceling stops the next renewal; access runs to the end of the term you already paid for. After that you keep what you saved: you can still open your designs, read your notes and version history, export the whole library as a JSON file, and delete any design or material, for as long as your account exists. Custom materials you defined stay viewable and usable in simulations; you just can't create or edit them any more.
Can I get a refund?
Yes, within 14 days, no questions asked, on your first paid term: your first year if you subscribed annually, your first month if you subscribed monthly. Email support@photizon.com within 14 days of that charge. Renewals after the first term aren't refundable except where the law says otherwise.
Can I get an invoice to expense it, or for my grant or department?
Yes. Invoice history is in the Stripe portal, linked from your account page. Prices exclude any applicable tax.
Does Thin-Film Pro have a free trial?
No. Your first paid term can be refunded within 14 days, no questions asked, and Plus has its own free trial if you want to try saving your work first.