Precise positioning measurement plays an important role in in today advanced
manufacturing industry, and length traceability chain has been optimizing and enriching to …

Using orbital angular momentum beams in a Michelson interferometer opens the possibility
for non-invasive measurements of refractive index changes down to 10^− 6 refractive index …

Nanoscale measurement is an essential task of nanomanufacturing, and measurement
traceability is a fundamental aspect of nanoscale measurement. High-precision nanoscale …

Range-resolved interferometry (RRI) allows the simultaneous demodulation of multiple
interferometric signal sources and provides a tomographic view of all constituent …

To determine the bidirectional transmittance distribution function (BTDF) of diffusely
transmitting materials, two new primary facilities have been developed at the Physikalisch …

Abstract This Focus Issue of Metrologia was instigated by the Consultative Committee for
Length's Working Group on Strategic Planning when it met online in 2020 during the COVID …

Natural constant-based metrology methods offer an effective approach to achieving
traceability in nanometric measurements. The Cr grating, fabricated by atom lithography and …

A current focus of the international metrology community is the digitalisation of documents,
certificates and services in response to initiatives underway throughout industry and to the …

The electro-optic comb (EO comb) with a relatively wide mode spacing of 25 GHz can be
resolved into individual frequency modes with a commercially available high-resolution …

The wide span and high density of lines in its rovibrational spectrum render hydrogen
cyanide a useful spectroscopic media for referencing absolute frequencies of lasers in …