Substrate Sizes:
0.5" Dia. x 2mm
1.0" Dia. x 2.5mm
2.0" Dia. x 4mm

Substrate Specifications:
Diameter Tolerance: +0.00/0.005"
Thickness Tolerance: +/-0.25mm
Surface Figure: <2 Waves @ 632.8nm
Parallelism: <3 arc min
Scratch/Dig: 20-10
Bevel: 0.3-0.5mm x 45 Degrees
Clear Aperture: Central 85%

VUV/UV Narrowband Filters
120-320nm

Pelham Research Optical (PRO) standard line of VUV-UV NARROWBAND (NB) optical filters have a typical bandwidth of ~20nm (FWHM) depending on the wavelength and a minimum transmission of 15%. Visible rejection for PRO filter is typically 10-4 Coatings can be applied to Customer Supplied Material as well as supplied build-to print complete from your supplied drawings.

Narrowband (BB) filters from 122nm to 161nm are manufactured on high purity VUV grade MgF2, CaF2, and cultured quartz substrates. Filters from 170nm to 320nm are manufactured on UV grade fused silica and can be covered and edge sealed for added protection. Please see our covered and edge sealed datasheet for more information.

VUV-UV Narrowband (BB) filter applications: Astronomy, Analytical and Biotechnology Instrumentation, Element Analysis, Environmental Monitoring and Filter based Spectroscopy.

Contact our Sales Department to order product, or Request a Quote.

All prices are subject to change at any time.

Click on highlighted wavelength to see curve. Opens in new window.

All Pelham Research Optical filters are supplied with individual VUV-UV % transmission calibration curve detailing their VUV-UV spectral performance.

Analytical and laser line narrowband filters include 122nm Lyman line, 155nm carbon IV(C IV) line, 158nm Fluorine (F) line, 172nm Xenon (XE) line, 184.9nm Mercury (hg) line, 193nm Argon Fluoride (ArF) laser line, 214nm Zinc (Zn) line, 222nm (KrCl) laser line, 248nm (KrF) laser line, 253.7nm Mercury (Hg) line, 282nm (XeBr) laser line, 296.7nm Mercury (Hg) line and 313nm Mercury (Hg) line.