Standard and High-Power Apertures These apertures are laser-drilled in discs 9.53mm dia, and available unmounted or in two mount sizes. The standard range are in 302 stainless steel 12.5um thick, except 1um and 2um which are in a 2.5-5um patch on a 0.1mm backing. High Power apertures are in copper, gold plated on one side, flat poly black (98% emissivity) on the other, and typically withstand 100-200MW/cm2 for a 10ns pulse (700nm). Thickness is 0.15mm, thinned to 25um around the aperture.
Knight Optical > Gratings/ Graticules and Apertures > Apertures - High power Pinholes Foil 9.53 (diameter mm) This is the section containing Foil 9.53 (diameter mm). Mounted 16 (diameter mm) This is the section containing Mounted 16 (diameter mm). Mounted 25 (diameter mm) This is the section containing Mounted 25 (diameter mm). Only UK and EU customers are charged VAT at 17.5%, customers outside the EU and EU customers based outside the UK who have a valid EU VAT number will not be charged VAT Bulk Discounts! Where (B) appears next to a price below, bulk prices are available, click the (B) button to view! Knight Optical > Gratings/ Graticules and Apertures > Apertures - High power Pinholes
Specification   Centration:     To foil edge 50µm   To mount 150µm Pinhole roundness:    1-15µm 0.5µm   20-50µm 1µm   75µm 2µm Slit straightness: 2µm
Specific requirements We can manufacture these Apertures to any size at short notice, so if your requirements are not listed please contact us by telephone / fax or email: stockrequirement@knightoptical.co.uk Options available   · Special sizes and mounts   · Black one or both sides   · Closer tolerance or calibration   · Thicker substrate (0.15mm) See also Precision Apertures