Quantum Catalyzer (Q-Cat)的动态

???? POLYNICES Project is a ?? #research and ??#innovation action that aims to provide a general-purpose #photonic integration platform with all the ?? cost, ?? performance, ? scalability and ?? manufacturability credentials for the next-generation photonic modules. ??Learn more ??https://lnkd.in/dYpnAM6h #PhotonicsEU #research #horizoneurope PCRL - Photonics Communications Research Laboratory ICCS - NTUA Fraunhofer Heinrich Hertz Institute HHI LioniX International Universidad Carlos III de Madrid Optagon Photonics PHIX Photonics Assembly QuiX Quantum TOPTICA Photonics

Researchers at the University of South Australia have achieved a significant advancement in integrated optical components designed for visible to mid-infrared applications: https://bit.ly/3ZylDMP The study, published in Optics Express [#OPG_OpEx], covers the successful fabrication of waveguides with a high positive refractive index change exceeding 0.02 in rare earth-doped fluoride glass. These findings hold promising potential for chip laser technologies and the development of advanced optical devices used in sensing and spectroscopy. Written by: T. Toney Fernandez, Yongsop Hwang, H. Mahmodi, D. E. Otten, L. Plenecassagne, S. Cozic, S. Gross, I. Kabakova, M. Withford, M. Poulain, A. Fuerbach, and D. G. Lancaster #technology #photonics #physics #optics #scienceandtechnology #spectroscopy

Unveiling the Potential of Blue Quantum Emitters in Hexagonal Boron Nitride Colour centres in hexagonal boron nitride (hBN) are rapidly gaining attention for their potential in integrated quantum photonics. In our latest research, we conducted a detailed photophysical analysis of hBN single emitters emitting in the blue spectral range. These emitters, fabricated using various electron beam irradiation and annealing conditions, exhibit narrow-band luminescence centred at 436 nm. Through a combination of photon statistics and rigorous photodynamics analysis, we were able to unveil the potential level structure of the emitters. Our findings suggest the absence of a metastable state, further supported by theoretical analysis. This indicates a possible defect with an electronic structure featuring a fully occupied defect state in the lower half of the hBN band gap and an empty defect state in the upper half. Overall, this research offers valuable insights into the photophysical properties of this emerging class of blue quantum emitters in hBN. These findings hold significant promise for the development of scalable quantum photonic applications. Read the full paper here:

In a recent paper, published by researchers from KU Leuven and imec in Nano Letters, we present a noninvasive method to probe the superconducting state of nanostructures. Using a niobium resonator to study an aluminum loop, we demonstrate how changes in magnetic field, temperature, and loop dimensions affect the superconducting properties by shifting resonance frequencies. This technique allows us to detect subtle changes, known as phase slips, providing crucial insights into the behavior of superconducting nanodevices. Our findings open new avenues for advanced studies of quantum phenomena in superconducting materials. https://lnkd.in/eYCF5_tg

Publication Highlight — Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds In a new Nature Communications paper, Prof. Christian Degen's group at ETH Zürich demonstrates nanosecond-resolution detection of magnetic signals using NV magnetometry. This achievement opens up a host of new possibilities for quantum sensors in spintronics, semiconductor metrology, and many other fields. These impressive results were achieved using QZabre's diamond nanopillar arrays, which allowed the team to significantly enhance the photon yield. We are proud to see our products enabling such cutting-edge research, which also demonstrates the ever-expanding impact of NV magnetometry in advancing scientific discoveries and industrial applications. Original paper https://lnkd.in/dsiJzJDs More about QZabre pillar arrays https://lnkd.in/db3bm6Au Nature Portfolio, Department of Physics (D-PHYS), ETH Zurich, Laura Alicia V?lker,?John Abendroth, Nicholas Meinhardt,?Laura van Schie #QZabre #QSM #NVMagnetometry

?? Professor Stefanie Kroker from the Institute of Semiconductor Technology has received a Consolidator Grant of almost two million euros from the European Research Council (ERC) for the "MightyMirrors" project. ?? Kroker and her research group at #TUBraunschweig are investigating optical resonators, the components that make laser systems the most precise instruments known to humanity. ?? In laser development, the finesse of the device combined with the stability of the mirrors determines how precisely the light beam delivers the desired wavelength. This fineness depends essentially on how well the mirrors in the centre of the laser, the optical resonator, reflect the desired light particles. Prof. Kroker and her team now want to push the limits of what is possible with so-called metamirrors: These mirrors not only provide the necessary reflectivity in a very small space, but also integrate sensors, modulators and other optics into the mirror substrates. Complex systems such as the optical clocks of the Cluster of Excellence QuantumFrontiers or the quantum computer of Quantum Valley Lower Saxony require highly stable lasers with a wide range of wavelengths. Until now, however, not only has each wavelength required its own optical resonator, but also a separate laser for each wavelength. The mirrors from the Institute of Semiconductor Technology can make all the difference. Congratulations! ?? Read more in our magazine: ?? https://lnkd.in/eVzW_QfV ?? Kristina Rottig/TU Braunschweig #Metrology #Physics #QuantumFrontiers

?? Thrilled to share our research published in Light: Science & Applications, Nature Group! We explore innovative approaches to amplifying terahertz (THz) nonlinearities using advanced graphene-based structures. This work represents a significant step forward in bridging the gap between GHz electronics and THz photonics, paving the way for faster and more efficient technologies in wireless communication, signal processing, and beyond. A heartfelt thank you to the dedicated research groups at the University of Ottawa, as well as our collaborators from the University of Bayreuth and Iridian Spectral Technologies, for their invaluable contributions to this work. ?? Publication: “Strategies to enhance THz harmonic generation combining multilayered, gated, and metamaterial-based architectures”, Ali Maleki, Moritz Heindl, Yongbao Xin, Robert Boyd, Georg Herink, & Jean-Michel Menard ?? Read the full paper here: https://lnkd.in/et3qKyRk #Optics #Photonics #Terahertz #NonlinearOptics #WirelessCommunication

Exciting breakthrough published in Nature! Researchers from the Division of Solid State Physics and NanoLund have unveiled groundbreaking work in Nature on high-impedance microwave resonators with two-photon nonlinear effects. By leveraging a Josephson junction-based design, this study demonstrates strong nonlinear effects at just two photons, unlocking new potential for photon-photon and photon-system interactions. This innovative approach advances quantum photonics and introduces a novel energy diagram technique for analyzing multi-photon processes with precision. Congratulations to the brilliant team: Samuel Andersson, Harald Havir, Antti Ranni, Subhomoy Haldar, and Ville Maisi! Read the article "High-impedance microwave resonators with two-photon nonlinear effects" on the Nature website: https://lnkd.in/dsNcMrni #QuantumPhysics #nanoscience #NaturePublication #Photonics #NonlinearOptics #ResearchInnovation #Lunduniversity #Nanolund #LTH #Solidstatephysics

Today, we’re proud of Samuel Andersson, Harald Havir, Antti Ranni, Subhomoy Haldar, and Ville Maisi for their exciting breakthrough, which was published in Nature! The Division of Solid State Physics and?NanoLund?researchers?have unveiled groundbreaking work on high-impedance microwave resonators with two-photon nonlinear effects. By leveraging a Josephson junction-based design, this study demonstrates strong nonlinear effects at just two photons, unlocking new potential for photon-photon and photon-system interactions. This innovative approach advances quantum photonics and introduces a novel energy diagram technique for analyzing multi-photon processes with precision. Read the article ”High-impedance microwave resonators with two-photon nonlinear effects” on the Nature website: https://lnkd.in/dsNcMrni #QuantumPhysics #nanoscience #Photonics #NonlinearOptics #ResearchInnovation #Solidstatephysics Lunds universitet ? Department of Physics, Lund University ? Lunds Tekniska H?gskola

Read the new paper by Alrik Durand, Yoann Baron, Félix Cache, Tobias Herzig, Mario KHOURY, Sebastien Pezzagna, Jan Meijer, Jean-Michel HARTMANN, Shay Reboh, Marco Abbarchi, Isabelle Robert-Philip, Jean-Michel Gérard, Vincent Jacques, Guillaume Cassabois, and Ana?s Dréau studying single????centers in carbon-implanted silicon. ?? https://lnkd.in/epAVaWxf Single color centers recently isolated in carbon-implanted silicon with an emission line at 1.28???m have so far been identified as a well-known defect called the????center. In this paper, the authors demonstrate that these single defects are actually divided into two distinct families, each with specific single-photon properties. On one side are the genuine G centers, and on the other, the faux G centers, which belong to a different defect labeled the G? center. ?These results provide a safeguard against future defect misidentifications, which is crucial for the further development of quantum technologies relying on the quantum properties of G or G? centers. This work is the result of a collaboration between the University of Montpellier, Leipzig University, IM2NP CNRS UMR 7334, CEA-Leti, SOLNIL, and the NPSC - Nanophysics and Semiconductors team of PHELIQS - Quantum Photonics, Electronics and Engineering. #researchpaper #quantumphotonics #photonics #nanotechnology #siliconphotonics CEA-Irig, Université Grenoble Alpes, Grenoble INP - UGA