Blog Profile / Physorg: Physics


URL :http://phys.org/physics-news/
Filed Under:Academics / Physics
Posts on Regator:1854
Posts / Week:34.2
Archived Since:September 5, 2016

Blog Post Archive

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a phenomenon similar to an effect observed in circular galleries, such as in some...Show More Summary

One-way track for microwaves based on mechanical interference

Devices that allow to route microwave signals are essential engineering tools. In particular, isolators, which let signals flow in one direction but block them in the other, are needed to protect sensitive equipment from harm. Now, scientists...Show More Summary

Researchers develop a rapid, automatable, chip-based platform to analyze live cells

Fluorescence microscopy gives researchers incredible power to illuminate the tiniest structures and capture the real-time activities of live cells by tagging biological molecules with a veritable rainbow of fluorescent dyes. This power comes at a cost: The technology can be expensive and time-consuming and, so far, has resisted attempts at automation.

Nonlinear physics bridges thoughts to sounds in birdsong

The beautiful sound of birdsongs emerging from the trees is a wonderful example of how much nature can still teach us, even as much about their origins are still mysterious to us. About 40 percent of bird species learn to vocalize when they are exposed to a tutor, a behavior of interest to many neurologists and neurobiologists. Show More Summary

Cost effective quantum moves a step closer

Canadian and US researchers have taken an important step towards enabling quantum networks to be cost-effective and truly secure from attack.

Speed plus control in new computer chip—slowing down light to sound

Light travels fast – sometimes a little too fast when it comes to data processing.

Physicists develop new design for fast, single-photon guns

Researchers from the Moscow Institute of Physics and Technology and the University of Siegen have explained the mechanism of single-photon generation in diamond diodes. Their findings, published in Physical Review Applied, offer new avenues for the development of high-speed single-photon sources for quantum communication networks and quantum computers of the future.

Optical and electrical bistability study sheds light on next-gen high speed data transfer

Today, electrical bistable devices are the foundation of digital electronics, serving as building blocks of switches, logic gates and memories in computer systems. However, the bandwidth of these electronic computers is limited by the signal delay of time constants important to electronic logic operations. Show More Summary

New approach boosts performance in thermoelectric materials

Thermoelectric materials are considered a key resource for the future - able to produce electricity from sources of heat that would otherwise go to waste, from power plants, vehicle tailpipes and elsewhere, without generating additional greenhouse gases. Show More Summary

A new approach to ultrafast light pulses

Two-dimensional materials called molecular aggregates are very effective light emitters that work on a different principle than typical organic light-emitting diodes (OLEDs) or quantum dots. But their potential as components for new kinds of optoelectronic devices has been limited by their relatively slow response time. Show More Summary

An original method of cooling ions could have new and interesting uses

When investigating atoms, scientists face a challenge: At room temperature, individual atoms in a gas have kinetic energy, and fly around at large velocities. Temperature is, in essence, the relative movement between atoms; thus the goal of getting the atoms to have small relative velocities involves freezing them to extremely cold temperatures. Show More Summary

Scientists demonstrated 1.3?m submilliamp threshold quantum dot micro-lasers on Si

Decades ago, the Moore's law predicted that the number of transistors in a dense integrated circuit doubles approximately every two years. This prediction was proved to be right in the past few decades, and the quest for ever smaller and more efficient semiconductor devices have been a driving force in breakthroughs in the technology.

Physicists guide electromagnetic waves along an infinitesimal line

(Phys.org)—Physicists have demonstrated a new mode of electromagnetic wave called a "line wave," which travels along an infinitely thin line along the interface between two adjacent surfaces with different electromagnetic properties....Show More Summary

Research creates new possibilities to design new materials with strange and exotic properties

The 2016 Nobel Prize in Physics celebrated the rich behaviour of two-dimensional (2-D) materials, like atoms, molecules, or electrons that are confined to move on a flat surface.

Researchers develop new ultra-fast 3D microscope

A new microscope can capture 3-D images of live organisms in real time. It's called the QIs-scope, an innovation from a spinoff of Universidad Carlos III de Madrid (UC3M), 4D Nature. The microscope can be used in biomedical research or to improve clinical diagnosis procedures.

Possible evidence for small, short-lived drops of early universe quark-gluon plasma

Particles emerging from even the lowest energy collisions of small deuterons with large heavy nuclei at the Relativistic Heavy Ion Collider (RHIC)—a U.S. Department of Energy Office of Science User Facility for nuclear physics research...Show More Summary

Physicists "learn the rules" of magnetic states in newly published research

Ames Laboratory scientists have found new insight to the "rules" of how magnetic states emerge and are suppressed, creating a guide for discovery of other materials with superconducting capabilities. The discovery was made through the study of the transition metal compound LaCrGe3 under temperature, pressure, and magnetic field changes.

Light to break bandwidth ceiling

The rise of big data and advances in information technology has serious implications for our ability to deliver sufficient bandwidth to meet the growing demand.

Invisibility cloak closer to becoming a reality

Photonics is a rapidly growing field in which some of the most sci-fi ideas of the not-so-distant past, are taking form. Now EU-funded research is bringing the notion of an invisibility cloak closer by using microscopic structures that can bend light.

Storing lightning inside thunder: Researchers are turning optical data into readable soundwaves

Researchers at the University of Sydney have dramatically slowed digital information carried as light waves by transferring the data into sound waves in an integrated circuit, or microchip.

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