This interferometer features a new 4MP camera, which improves both repeatability and precision by two times compared to previous models
4D Technology has added to its line of PhaseCam dynamic interferometers, supported by the release of 4Sight Focus acquisition and analysis software
Measurement of large optics require metrology systems that can function despite vibration, turbulence and other challenges.Laser interferometry is used throughout the manufacturing of large optics to ensure conformance to demanding design specifications. More recently, “dynamic interferometry” has been implemented for vibration-insensitive measurement of large optics.
*Now available on demand* Dr Erik Novak, senior director of business development at 4D Technology, will discuss the different aspects that need to be considered when selecting a Large Aperture Interferometer.
Keely Portway looks at some of the latest advances in light-based test and measurement techniques
The Surface Isolation Source is an optional, external laser source for 4D Technology AccuFiz Fizeau interferometers
Verifying the surface quality of optics has long relied on a visual, non-quantitative approach, finds Jessica Rowbury
4D Technology has announced the 4D InSpec Surface Gauge, the first handheld, non-contact instrument that measures precision machined surface defects and features with micrometer-level resolution
4D Technology Corporation, manufacturer of optical metrology systems, has introduced its newly improved AccuFiz compact laser interferometer for accurate, repeatable measurement of surface shape and transmitted wavefront quality
4D Technology Corporation, manufacturer of optical metrology systems, has introduced the FlexCam metrology module
Organoid imaged with Andor’s desktop confocal microscope system, the BC43. Credit: Andor
As microscopes become ever more powerful, a growing band of businesses are racing to make the latest technologies more accessible and more affordable, reports Rebecca Pool
Illustration of a three-dimensional crystal with various types of confining centres. (a) Crystal with four confining centres, each trapping waves (yellow) in all three dimensions simultaneously. (b) Crystal with a linear confining centre where waves can propagate in one dimension, analogous to an optical fibre. (c) Crystal with a planar confining centre where waves can propagate in two dimensions, analogous to a 2D electron gas. (Image: Vos et al.)
Newly discovered fundamental rules have been embedded into software to dramatically optimise the design of photonic integrated circuits
