Buyer's Guide … the one with the Encyclopedia!

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Purchasing Advisor for Supermirrors

Find all you need for professionally buying supermirrors: an interactive tool with a comprehensive and trustworthy directory of suppliers and expert guidance for a structured decision process with scientific and technical background information.

Top-level product category: icon optical components and devices

More general product categories: mirrors

Related product categories: laser mirrors, superpolished optics

Supermirrors are optical mirrors with extremely high reflectivity, often exceeding 99.9999%. These mirrors are used to create optical resonators with exceptionally high Q factors, making them vital in fields such as quantum optics.

Interactive Purchase Decision Tool

Purchasing high-value photonics products is a substantial responsibility. Using a structured decision-making process and high quality supplier data helps a lot:

See also:

How Responsible Purchase Decisions for Expensive Goods Like Lasers Are Done Explanations on this purchasing tool

Go through the process:

1. Understand the technical background

It is important to sufficiently understand the technology before buying.

Use the comprehensive learning resources of RP Photonics:

encyclopedia article supermirrors mirrors dielectric mirrors crystalline mirrors Fabry–Pérot interferometers finesse Q factor

If you need personal help, contact RP Photonics to get technical consultancy.

2. Define your requirements

It is essential to fully understand and clearly define your requirements before you purchase.

We recommend that you develop a list of clear specifications according to your specific needs, against which you can later check the suitability of found product offers:

To help you, we have already listed some aspects we recommend you consider when buying supermirrors. Of course, there may be other aspects that are relevant to your specific case.

This list is for your own preparation, and can later (possibly in modified form) be used for quotation requests to suppliers.

Otherwise, you will need to talk to your technical colleagues.

If you cannot sufficiently clarify your requirements, you may want to get technical consultancy from RP Photonics.

You find these buttons in the supplier list below or under "3. Find suitable suppliers".

3. Find suitable suppliers

We suggest three steps:

  • Below, you can find our list of suppliers for supermirrors. Use the checkboxes to mark possibly suitable suppliers.
  • The selected suppliers will appear below this list, along with your list of specifications. You can then indicate which specifications they meet according to your research. (You should finalize your specifications before doing this.)
  • Based on the results, you can finally choose a supplier that is hopefully a good enough fit.

Selected suppliers:

(none so far)

Decision

The most suitable supplier you found:

Comments, e.g. reasons for your choice, or things which still need to be checked:

4. Document the decision process

It is essential to document your purchasing process, not only its result (chosen supplier):

  • You will find it easier next time.
  • If something goes wrong, you can defend your decision by showing that you properly considered all important aspects. Or you see what needs to be done better next time.

Our interactive tool makes it easy: Fill out the form, and in the end print it to a PDF. Note that the document will show all sections (including those not currently shown on the screen), while omitting some irrelevant details such as the page navigation.

Suppliers for Supermirrors

7 suppliers for supermirrors are listed in the RP Photonics Buyer's Guide, out of which 4 present their product descriptions and images. Both manufacturers and distributors can be registered.

Suppliers with Advertising Package

presenting their product descriptions

Thorlabs
43 Sparta Avenue
Newton, NJ 07860
United States
Profile page  Website  

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B2.403, A1.530)!

supermirrors

Thorlabs manufactures high-performance, single-crystal supermirror coatings on Ø1" substrates for applications requiring the highest reflectance possible at a specific wavelength. These high-performance supermirrors with ultralow optical absorption and minimal Brownian noise are key ingredients for the construction of optical atomic clocks, optical reference cavities, and stabilized lasers, as well as the next generation of gravitational wave detectors.

Product-specific web page

YOUR KEY to innovation and success

UltraFast Innovations GmbH
Dieselstr. 5
85748 Garching (München)
Germany
Profile page  Website  

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B1.543)!

UltraFast Innovations (UFI®) manufactures supermirrors with a reflectivity exceeding 99.99%. Our magnetron sputtering facility offers the best technology for ultra-high reflection mirrors due to the extremely dense layers. More than 99.997% reflection over a bandwidth of 200 nm or more is available.

Characterization of these mirrors is performed in a cavity ring-down measurement device with ppm-level precision.

Product-specific web page

Home of high power optics and coatings

LASEROPTIK
Johannes-Ebert-Str. 1
30826 Garbsen
Germany
Profile page  Website  

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B1.120)!

supermirrors

So-called supermirrors for ring laser gyroscope assemblies or certain scientific applications require coated optics with extremely low losses (i.e. absorption and scattering). These mirrors also have a maximum reflectivity with R > 99.998% and total losses < 10 ppm.

LASEROPTIK uses a modified IBS machine that is capable to produce coatings on super­polished substrates. The cleanliness of the machine and environment is maintained in a dedicated super-clean room, where also the extensive substrate pre- and after-treatment takes place.

Measurement devices such as white light profilometers and high resolution microscopes (up to × 1000) for the inspection procedures are in place. A custom built cavity ring-down setup allows to determine the reflection with a precision of up to four decimal places and to refer back to the losses.

Product-specific web page

Your sidekick for laser optics development

OPTOMAN
Ukmerges g. 427
14185 Vilnius
Lithuania
Profile page  Website  
supermirrors

OPTOMAN's extreme low-loss mirrors have a maximum reflectivity of R > 99.995% and total losses (absorption, scatter, and transmission) below 1 ppm at a discrete wavelength and angle of incidence. Coatings are applied on high purity fused silica substrates (plane, spherical or wedged) super-polished to an RMS roughness of <2 Å. Mirrors are available with a CRD measurement that prove reflectivity and loss values.

Product-specific web page

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Other Suppliers

Alien Photonics
Lithuania
Profile page  Website  
LohnStar Optics
United States
Profile page  Website  
Newport Corporation
United States

If any displayed information is incorrect (e.g., a listed supplier does not offer such products) or legally problematic, please notify RP Photonics so that the problem can be solved.