In photometry and colorimetry, standard CIE illuminant A tungsten-filament light sources have exclusively been used as calibration standard sources since 1932. As LEDs increasingly replace traditional lighting new means and methods of calibration are needed […]
An improvement to a Nobel Prize-winning technology called a frequency comb enables it to measure light pulse arrival times with greater sensitivity than was previously possible — potentially improving measurements of distance along with applications […]
by Martti Heinonen Europe aims at climate neutrality by 2050; to achieve this, plastic recycling needs to be increased through better processes and technologies. There is an increasing need for measurement technology that enable efficient […]
February 9, 2022 – Yokogawa Test&Measurement, a pioneer and leader in precision optical measurement, is pleased to announce that the latest addition to its optical spectrum analyzer line, the AQ6380 Highest Performance OSA has received […]
by Peter de Groot Over the last few decades, additive manufacturing (AM)/3D printing has fundamentally changed the way that manufacturers approach product development. Industry is now almost universally aware of the term rapid prototyping, using […]
Using cutting-edge optical frequency standards developed at PTB and NPL, the team has been able to demonstrate that their measurement precision is preserved even when transmitted across thousands of kilometers of optical fibre. Source: New […]
A team from UCF has developed the world’s first optical oscilloscope, an instrument that is able to measure the electric field of light. The device converts light oscillations into electrical signals, much like hospital monitors […]
PTBnews 03.2021 — In collaboration with an industrial partner, PTB has developed and assessed a very compact wavelength standard. This standard is based on a diode laser whose frequency is stabilized to transitions of the […]
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