picture of fused silica

Home / Products / Technical Glass / Quartz Microscope Slides

Quartz Microscope Slides

UV-transparent optical quality quartz slides for microscopy

Special Properties

  • Very good ultraviolet light transmission of
    T > 80 % at 185 nm
  • Made of synthetic quartz with UV-quality (Fused Silica)
  • Exceptional material purity
  • Temperature resistant up to 1000 °C
  • Low light absorption
  • High resistance against chemicals
  • Double side optically polished
  • Good surface quality and flatness
  • Low micro roughness (smooth surfaces)

Typical Applications

  • UV and DUV - microscopy
  • High temperature microscope applications
  • Low loss and low absorption slides and coverslips
  • Coverslip for scientific UV-microscopes
  • Sample storage solutions
  • UV-permeable cover-slips
  • Cell research


Quartz microscope slides for science and research made of UV-grade quartz glass

Our company supplies quartz microscope slides made of high purity synthetic amorphous silicon dioxide (UV-grade fused silica). Each quartz slide we make, provides maximum light transmission for UV–wavelengths. Ordinary quartz microscope slides are predominantly made from naturally occurring quartz, so-called fused quartz. Most of them do not provide a high UV-transmission before approx. 260 nm. Since we only use synthetic quartz (Fused Silica) for our quartz microscope slides, we achieve a transmittance of more than 80 % beginning at 185 nm already. This enables deep-ultraviolet (DUV) microscopy applications and keeps losses in this wavelength range small.

All of our quartz microscope slide items have a low absorption, are double-side optically clear polished and offer a good flatness and surface quality. The exceptional purity and the very good chemical resistance of the amorphous quartz we use for the manufacturing of the slides, often allows the storage of samples, without falsifying the results of the measurements by substances or chemicals dissolved from the material into the specimen. All those properties facilitate demanding microscopy applications in science, cell research and in the lab.

Präzisions Glas & Optik GmbH supplies all the listed standards of quartz- or fused silica plates for scientific microscopy as well as the listed coverslips at nearly any time. As our company is an optics manufacturer, it is part of our business to manufacture such products in–house. Hence, if you are in search of customized quartz slide products, or if you search for round quartz discs, coverslips or quartz optics we can help as well. We fabricate most custom sized quartz-slide components within a very short delivery time or even within our new 48-h services. These enable us to manufacture and ship a custom sized product within two working days, provided there are no complex additional manufacturing steps required. Using our 48h services, you will have your customized quartz slides very quickly on your lab table, so you can continue your project almost without delays.



Quotation for quartz slide products

48h- Express Service: Shipping within two working days.

NEW! 48-h Express Service available


Within our express service, you can order the following quartz microscope cover slip and slide thicknesses: 0,3mm ; 0,5mm ; 1mm ; 2mm. Within normal delivery time we polish the materials to almost any desired quartz slide thickness.



View transmittance of our quartz microscope slides (click to enlarge)

View transmission of our quartz slides for microscopy made of Fused Silica at 200 - 1100 nm


Light Transmissivity

  • Greater than 80 % at 185 nm

Refractive Index

  • nd = 1,4585


  • 2,20 g/cm3

Coefficient of Thermal Expansion

  • approx. 0,57 x 10-6/K

Maximum Operating Temperature

  • approx. 1000 °C

Surface Quality

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


UV- grade quartz microscope slide
standard dimensions

(Click on desired thickness of the items for a quote)





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 dimensions are most common standards of microscope slide sizes. However, if you can use and order any one of the alternative smaller slide items or coverslips (not bold), this might be significantly more economical. For example the piece price of a size of 25mm x 66mm x 1mm is lower than the piece price of a 25mm x 75mm x 1mm standard dimension. Of course also round quartz plates are available.

Available fused silica slide thicknesses you can order at short lead times

  • 0,3mm, 0,5mm, 1mm, 2mm and 3mm


Note: Besides the quartz slides and cover slips described in this website, it belongs to our business to make such kind of components for microscopy from any of the many other specialty materials that are part of our large inventory. Please let us know your requirements or send us an email and we will immediately send you our quotation.



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