Nanotechnology World’s Post

Optical and Quantum Electronics Aims and scope Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics. https://lnkd.in/d-b7QCFY

Würzburg-Dresden physicists introduce a cost-effective semiconductor device in Nature Physics, utilizing AlGaAs (aluminum-gallium-arsenide) and a topological quantum phenomenon for stable electron flow. The breakthrough, 0.1mm in diameter, reduces sensitivity to impurities, making it suitable for power-intensive applications and sensor engineering. This marks a significant advancement in topological quantum materials research. Be Strong Together! #PartYard #PartYardMilitary #QuantumComputer #Quantum #QuantumTechnologies #QuantumLeap #TopologicalQuantumDevice #Electronics #QuantumMaterials #Innovation #ResearchBreakthrough #ScienceAdvancement #Semiconductor #BeStrongTogether

📣 Join us on Monday for a guest seminar with Dr. Nathan Youngblood, assistant professor of Electrical and Computer Engineering at the University of Pittsburgh. MONDAY, SEPTEMBER 23 11AM to 12PM 📍 CSU Lory Student Center 376-78 Title: Photonic Architectures for In-Memory Computing Using Nonvolatile Optical Materials. Abstract: Photonics information processing strategies offer the unique ability to perform analog computation with ultra-low latency and high efficiency. However, designing compact and reconfigurable photonic architectures which scale well is a challenge. The combination of bistable optical materials (such as phase-change materials like Ge2Sb2Te5) and integrated photonics is a promising approach which enables nonvolatile optical memory on-chip with low drift, compact footprint, and high-speed readout. This talk will focus on developing robust and scalable photonic memories—together with wavelength division multiplexing and “in-memory” computing techniques—to enable high-speed matrix-vector operations for machine learning applications. #seminars #photonics #computing #opticalmaterials

Quantum computing is an active field of research that holds promise to greatly increase computing power over existing computer architectures by using quantum mechanical phenomena. However, several technical hurdles still remain to realize practical quantum computers such as decoherence, which results in the loss of information. Recent research by Luca Banszerus, W. Marshall, Christine Andersson, Tyler Lindemann, Michael Manfra, Charles Marcus, and Saulius Vaitiekenas achieved a nonsinusoidal element by using two voltage tunable sinusoidal Josephson junctions in series. Nonsinusoidal Josephson elements have attracted considerable attention as they enable nonlinear circuits, resilient superconducting qubits, and nonreciprocal devices like Josephson diodes. This work was performed in part using an STS-Elionix 7000 electron beam lithography system at the Center for Quantum Devices in the Niels Bohr Institute, University of Copenhagen of the University of Copenhagen (Københavns Universitet). For more information see https://lnkd.in/eGy-vasF Image: Color enhanced scanning electron micrograph of two separate parallel paths (gold arm 1 and gray arm 2), each consisting of two Josephson junctions in series (J1,J2 and J3,J4). The exposed semiconductor material is shown in green, while an epitaxial aluminum layer is shown in blue. #quantumcomputing #quantummechanics #quantumtechnology

Light-Matter Particle Breakthrough Could Change Displays Forever. POSTECH researchers have created a technique for controlling polaritons, which could lead to advancements in optical displays and various optoelectronic devices. Using polariton particles instead of quantum dots, key materials of QLED televisions, offers a notable advantage. A single polariton particle can emit light in all colors with significantly enhanced brightness. This eliminates the need for three distinct types of quantum dots to produce red, green, and blue light separately. Moreover, this property can be electrically controlled similar to conventional electronics - https://lnkd.in/gyQ99YD2 #displaytechnology

The field of photonic integrated circuits focuses on the miniaturization of photonic elements and their integration in photonic chips—circuits that carry out a range of calculations using photons, rather than electrons as are used in electronic circuits.

The field of photonic integrated circuits focuses on the miniaturization of photonic elements and their integration in photonic chips—circuits that carry out a range of calculations using photons, rather than electrons as are used in electronic circuits.

Movies of ultrafast electronic circuitry in space and time . Researchers at the University of Konstanz have successfully filmed the operations of extremely fast electronic circuitry in an electron microscope at a bandwidth of tens of terahertz. The study is published in Nature Communications. #TechTrends #TechInnovationsDaily #DigitalFrontiers #FutureTechInsights

Engaging with optical systems during experimental work to explore the novel physics of semiconductor devices is consistently gratifying. #researchanddevelopment #semiconductormanufacturing #semiconductor #academiclife #academicresearch #engineering #scienceandtechnology

Altermagnets represent a newly recognized class of materials in magnetism that could enable novel applications in spin-based electronics. Their magnetically ordered state consists of an antiparallel arrangement of microscopic magnetic moments, so-called spins, as in antiferromagnets. In contrast to antiferromagnetism, however, the altermagnetic state with zero net-magnetization enables the generation of electrical currents with spin polarization, as required in spin-based electronics. Thus, altermagnets combine the advantages of antiferromagnets, i.e., ultrafast dynamics, and ferromagnets, i.e., large spin polarization. “The magnitude of this spitting, observed in a good conductor and at room temperature, is extraordinary and promising with regard to electronic applications of altermagnetic materials,” said Professor Martin Jourdan, coordinator of the study recently published in Nature Communications. #electronics #magnetism #spintronics #polarization https://lnkd.in/ggMGAC9q