News

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Laurent VIVIEN, C2N Deputy Director, head of the photonics department, elected Fellow of SPIE

Congratulations to Laurent VIVIEN, C2N Deputy Director, head of the photonics department, elected to 2021 Fellow of SPIE - the International society for optics and photonics, after being elected to Fellow of the European Optical Society (EOS) and of the …

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Source of correlated photons made (very) small!

Teams at Thales and C2N (CNRS/UPSaclay/UParis) have developed a novel miniaturized source of light called Photonic Crystal Optical Parametric Oscillator. An Optical Parametric Oscillator (OPO) is similar to a laser in that it generates coherent light, namely photons …

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Indirect to direct band gap crossover in two-dimensional WS2(1−x)Se2x alloys

Using angle-resolved photoemission spectroscopy (ARPES) combined with DFT calculations, physicists from the Center for Nanosciences and Nanotechnologies (C2N, Université Paris-Saclay / CNRS), in collaboration with researchers from Hunan University (China) demonstrated that high PL intensity value observed in WS0.4Se1.6 …

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Electrically injected parity-time symmetric distributed-feedback (DFB) laser diodes for telecom applications

Researchers at the Centre de Nanosciences et de Nanotechnologies (C2N), in collaboration with Laboratoire Charles Fabry (LCF) have reported single-frequency electrically-injected DFB laser diodes based on Parity-Time symmetric dual gratings in a standard ridge waveguide configuration, thus amenable to …

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On-Chip Mid-Infrared Supercontinuum Generation from 3 to 13 μm Wavelength

Mid-infrared spectroscopy is a universal way to identify chemical and biological substances. Indeed, when interacting with a light beam, most molecules are responsible for absorption at specific wavelengths in the mid-IR spectrum, allowing to detect and quantify …

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