picture of fused silica

Home / Products / Technical Glasses / Quartz Microscope Slides

Quartz Microscope Slides

UV-transparent Fused Silica slide products for microscopy

Special Properties

  • Excellent ultraviolet transmission of
    more than 80% already at 185 nm
  • Low light absorption
  • Temperature resistant up to 1000 °C
  • Made of synthetic quartz with UV-quality (Fused Silica)
  • Exceptional material purity
  • Highly resistant against chemicals
  • Double-side optically polished
  • Low micro-roughness (smooth surfaces)
  • Excellent surface quality and flatness

Typical Applications

  • Microscope slides for advanced UV- and DUV-microscopy
  • High-temperature microscope stages
  • Chemically resistant microscope object carrier
  • Low-loss and low-absorption slides and coverslips
  • Quartz coverslips for scientific UV-microscopes
  • Sample storage solutions
  • Slides for medical applications
  • UV-permeable, inert cover glasses
  • Cell research
  • Glass slips for UV-spectroscopy


Get a quote for
quartz microscope-slides

48h-Express Service Also available in 48 h Express-Service*

Our company manufactures and supplies quartz microscope slides from high-purity synthetic amorphous silicon dioxide (UV-quality quartz glass) for science and research. Ordinary quartz object carriers are mainly made of naturally occurring quartz, the so-called fused quartz. These slides usually cannot offer such a very high UV-transparency at wavelengths below 250 nm as optical quartz glass. Each quartz microscope slide we manufacture offers maximum light transmission for significantly shorter UV-wavelengths. To achieve transmission of more than 80% at 185 nm already, we exclusively use high-quality synthetic quartz glass (Fused Silica) for the production of our quartz microscope slides. This material makes deep-ultraviolet transmission (DUV) possible and keeps the absorption losses for UV wavelengths low. All quartz microscope slides and cover glass products we make are double-side optically clear polished and offer an excellent flatness and surface quality. The outstanding purity and superior chemical resistance of the amorphous quartz glass we use for the microscope slides enable sample storage without contamination since almost no substances or chemicals dissolve from the slides into the sample or the specimen. Those features make demanding microscopy applications in medical cell research, science, analytics, and sample storage solutions in the lab possible.

Our company supplies all the standards sizes of fused-silica microscope slides and coverslips used in science as listed in the table of this website. You can order these microscope slides at any time. If you are in search of customized quartz slides or if you need round covers, coverslips, or any other quartz glass-based product, we can help you as well because we manufacture these components in-house. We can produce most custom-sized quartz microscope slides within short lead time. Even our new 48 h Express Service is available in many cases. This option offers the manufacturing and shipping of custom sized quartz slides within two working days, provided there are no complicated additional manufacturing steps required. So when you order using our 48h Express Services, you have your tailored quartz microscope slides extremely quick on your lab table so you can continue your project or daily business without delays.

Please use the button below to request a quotation for any size of quartz microscope slides or cover glasses:


Get a quote for
quartz microscope-slides


48h-Express Service *Within the scope of our express service you can order the following microscope slide thicknesses:
0,3mm ; 0,5mm ; 1mm ; 2mm.
(Almost any desired quartz glass microscope slide-thickness is possible when ordered in normal delivery service.)



View transmittance of our quartz microscope slide materials (click to enlarge)

Click to view UV-transmission of the fused silica materials we use for the manufacturing of our microscope slides.


  • UV-grade quartz glass (Fused Silica)

Light Transmissivity

  • > 80% at 185 nm

Refractive Index

  • nd = 1,4585


  • 2,20 g/cm3

Coefficient of Thermal Expansion

  • ca. 0,57 x 10-6/K

Maximum Operating Temperature

  • ca. 1000 °C

Surface Quality

  • 60-40 scratch & dig (MIL-0-13830A)

UV-grade quartz microscope slides
Standard dimensions

(Click on desired slide thickness to get a quote)




in inches

Standard Slide



10 x 10 0,4 x 0,4 0,30, 0,50, 1,00
19 x 19 0,75 x 0,75 0,30, 0,50, 1,00
23 x 23 0,9 x 0,9 0,30, 0,50, 1,00
23 x 46 0,9 x 1,8 0,30, 0,50, 1,00
23 x 66 0,9 x 2,6 0,30, 0,50, 1,00
23 x 75 0,9 x 3,0 0,30, 0,50, 1,00
25 x 25 1 x 1 0,30, 0,50, 1,00
25 x 46 1 x 1,8 0,50, 1,00
25 x 50 1 x 2 0,50, 1,00
25 x 66 1 x 2,6 0,50, 1,00
25 x 75 1 x 3 0,50, 1,00
46 x 66 1,8 x 2,6 0,50, 1,00
50 x 75 2 x 3 0,50, 1,00
70 x 70 2,75 x 2,75 0,50, 1,00
The bold numbers represent the most common standard dimensions of quartz microscope slides and cover-slips in science. However, if you can use any one of the alternative smaller slides (not bold), please take into account that this might be significantly more economical than the standard slides. For example, the piece price of a microscope slide dimension of 23 mm x 66 mm x 1 mm is significantly lower than the piece price of a 25mm x 75mm x 1mm standard dimension. Of course, also round quartz plates and other microscope slide shapes and cover-slips are available per request.

Slide thicknesses you can order with short lead time

  • 48h-Express Service 0,3mm, 0,5mm, 1mm, 2mm and 3mm
  • Express shipping available

Note: Besides the quartz microscope slides and coverslips described in this website, our company supplies specialty glass components for microscopy from any of the many other glass materials from our extensive product range. If you are in search of such kind of specialty microscope slides or coverslips, please contact us and let us know your requirements or send an email. We answer immediately with our quotation.


All given details and specifications are mean reference values and are not guaranteed. Also, please consider the "Notes on specifications".

© 1994-2019 Präzisions Glas & Optik GmbH