Search results for: optic

The hidden secrets of the colors of cave paintings at prehistoric sites

cave paintings

The colors of cave paintings are of great interest because they provide information about the techniques and materials used. Studying them also allows fewer sample to be taken from ancient paleolithic works. Research in colorimetry by Dominique Lafon-Pham at IMT Mines Alès provides a better definition of the colors used in …

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Nano 3D Printers for Industry

An example of the micro-structures produced using a single-beam laser nano printer by the company Multi-Photon Optics, a member of the consortium.

The 3-year H2020 project PHENOmenon, launched in January 2018, is developing nano 3D printers capable of producing micro and nano-structures (particularly those with an optical function), while adhering to limited production times. Kevin Heggarty is a researcher at IMT Atlantique, one of the project partners along with three other European …

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Acklio: linking connected objects to the internet

Acklio

With the phenomenal growth connected objects are experiencing, networks to support them have become a crucial underlying issue. Networks called “LPWAN” provide long-range communication and energy efficiency, making them perfectly suited to the Internet of Things, and are set to become standards. But first, they must be successfully integrated within …

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BioDigital, a new technology to combat identity spoofing

bioDigital

I’MTech is dedicating a series of articles to success stories from research partnerships supported by the Télécom & Société Numérique Carnot Institute (TSN), to which Télécom SudParis belongs. The original version of this article was published in French on Télécom SudParis website Following an 18-month collaboration agreement, Télécom SudParis (a …

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Silicon and laser: a brilliant pairing!

silicon

Researchers at Télécom ParisTech, in partnership with the University of California, Santa Barbara (UCSB), have developed new optical sources. These thermally-stable, energy-saving lasers offer promising potential for silicon photonics. These new developments offer numerous opportunities for improving very high-speed transmission systems, like datacomms and supercomputers. Their results were published in …

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The End of Web Neutrality: The End of the Internet?

neutrality

Hervé Debar, Télécom SudParis – Institut Mines-Télécom, Université Paris-Saclay At end 2017, a decision issued by the  Federal Communication Commission (FCC), the American agency responsible for regulating the American telecom sector (equivalent of the French ARCEP and the European BEREC), has changed the status of American Internet service providers. However, …

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Will the earth stop rotating after August 1st?

Earth

By Natacha Gondran, researcher at Mines Saint-Étienne, and Aurélien Boutaud. The original version of this article (in French) was published in The Conversation. It has become an annual summer tradition, much like France’s Music Festival or the Tour de France. Every August, right when French people are focused on enjoying …

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From springs to lasers: energy’s mysterious cycle

fundamental physics

In 1953, scientists theorized the energy behavior of a chain of springs and revealed a paradox in fundamental physics. Over 60 years later, a group of researchers from IMT Lille Douai, CNRS and the universities of Lille and Ferrara (Italy) has succeeded in observing this paradox. Their results have greatly …

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Medicine for Materials

non-destructive inspection

Did you know that materials have health problems too? To diagnose their structural integrity, researchers are increasingly using techniques similar to those used in the medical field for humans. X-rays, temperature checks and ultrasound imaging are just a few of the tools that help detection of abnormalities in parts. The …

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What is photomechanics?

Photomécanique Jean-José Orteu

How can we measure the deformation of a stratospheric balloon composed only of an envelope a few micrometers thick? It is impossible to attach a sensor to it because this would distort the envelope’s behavior… Photomechanics, which refers to measurement methods using images and computer analysis, makes it possible to …

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