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Optics & Photonics Apr 11, 2023

Femtosecond lasers with BiBurst enhance ablation speed of silicon by a factor of 23

Scientists working on laser application at the RIKEN Center for Advanced Photonics (RAP) have employed a new technique using GHz bursts of femtosecond laser pulses grouped in MHz envelopes—termed BiBurst mode—to greatly ...

Optics & Photonics Mar 28, 2023

Improved chip-scale color conversion lasers could enable many next-generation quantum devices

In two new studies, researchers at the National Institute of Standards and Technology (NIST) have greatly improved the efficiency and power output of a series of chip-scale devices that generate laser light at different colors ...

Quantum Physics Mar 7, 2023

First demonstration of universal control of encoded spin qubits

HRL Laboratories, LLC, has published the first demonstration of universal control of encoded spin qubits. This newly emerging approach to quantum computation uses a novel silicon-based qubit device architecture, fabricated ...

Optics & Photonics Feb 23, 2023

Wafer-scale nanofabrication of telecom single-photon emitters in silicon

Photonic integrated circuits, or in short, PICs, utilize particles of light, better known as photons, as opposed to electrons that run in electronic integrated circuits. The main difference between the two: A photonic integrated ...

Earth Sciences Feb 17, 2023

Rising silicon-rich snow in the Earth's outer core

Deep below the Earth's surface lies the outer core, which is made up 2000-km thick liquid iron alloy layer. Despite being located 3000-km deep from the surface, it still affects our surface habitability as it is the region ...

Condensed Matter Feb 16, 2023

Perovskites, a 'dirt cheap' alternative to silicon, just got a lot more efficient

Silicon, the standard semiconducting material used in a host of applications—computer central processing units (CPUs), semiconductor chips, detectors, and solar cells—is an abundant, naturally occurring material. However, ...

Optics & Photonics Feb 13, 2023

Researchers realize complete family of logic gates using silicon-on-silica waveguides at 1.55 μm

All-optical logic gates are essential elements for the optical processing of information, since they overcome the fundamental difficulties of their electronic counterparts, in particular the limited data transfer speed and ...

Quantum Physics Feb 13, 2023

The 'flip-flop' qubit: Realization of a new quantum bit in silicon controlled by electric signals

A team led by Professor Andrea Morello at UNSW Sydney has just demonstrated the operation of a new type of quantum bit, called "flip-flop" qubit, which combines the exquisite quantum properties of single atoms with easy controllability ...

Superconductivity Feb 9, 2023

Evidence for a chiral superconductor could bring quantum computing closer to the mainstream

The University of Tennessee's physicists have led a scientific team that found silicon—a mainstay of the soon-to-be trillion-dollar electronics industry—can host a novel form of superconductivity that could bring rapidly ...

Optics & Photonics Jan 10, 2023

Investigating the laser-induced periodic surface structure (LIPSS) of silicon

The electronic and optical devices that we use on a daily basis, such as mobile phones, LEDs and solar cells use transistors and other parts that are consistently getting smaller and more compact. With an ever-growing need ...

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