Optical Surfaces Ltd (Surrey, UK) can supply Fabry-Perot etalons in a range
of shapes and sizes up to 150mm in diameter with matching accuracies to
lambda/300. Etalons are widely used in telecommunications, lasers and
spectroscopic applications to measure the wavelength of light. Fabry Perot
etalons are available from Optical Surfaces Ltd in two basic forms - air-
spaced or solid. Designed for use at customer-defined wavelengths within the
range 190nm to about 2 microns, they are supplied with wedge angles of 5 min
of arc for smaller diameters, rising in steps to a wedge angle of 40 min of
arc for diameters greater than 70mm.
This month, Singapore unveiled the world's first self-driving taxis. Select passengers hailed free rides last Thursday through their smartphones. While multiple companies, including Google and Volvo, have been testing self-driving cars on public...
Subscribe today to receive the INSIDER, a FREE e-mail newsletter from NASA Tech Briefs featuring exclusive previews of upcoming articles, late breaking NASA and industry news, hot products and design ideas, links to online resources, and much more.