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Bonding Exercise: Quantifying Biexciton Binding Energy

A rare spectroscopy technique performed at Swinburne University of Technology directly quantifies the energy required to bind two excitons together, providing for the first time a direct measurement of the biexciton binding energy in WS2.

2 Mar 2022

New Metasurface-Based Antenna Could Potentially Provide Wireless Power to Simple Devices

Researchers have developed a new metasurface-based antenna that represents an important step toward making it practical to harvest energy from radio waves, such as the ones used in cell phone networks or Bluetooth connections. This technology could potentially provide wireless power to sensors, LEDs and other simple devices with low energy requirements.

1 Mar 2022

Direct Energetic Ion Acceleration by Irradiating Graphene Target with Ultra-Intense Laser

Laser-driven ion acceleration has been studied to develop a compact and efficient plasma-based accelerator, which is applicable to cancer therapy, nuclear fusion, and high energy physics.

17 Feb 2022

Rice University Research Reveals a New Way of Controlling Phonons

Phonons are collective atomic vibrations, or quasiparticles, that act as the main heat carriers in a crystal lattice. Under certain circumstances, their properties can be modified by electric fields or light. But until now, nobody noticed they can respond to magnetic fields as well.

16 Feb 2022

Using “Squeezed Light” to Improve Sensitivity of Quantum Microscopy

Lasers are often used to look at objects in microscopes. But even the best laser has "quantum noise" that makes a picture blurry and hides the details.

15 Feb 2022

Challenges and Opportunities of Detecting Gravitational Waves at Much Higher Frequencies

Electromagnetic (EM) waves and gravitational waves are the only available means to study the Universe on a large scale. For millennia, only the former could be used, in naked-eye astronomical observations by the ancients based on the reception of visible light, or present-day super telescopes operating in various bands of the EM spectrum, from radio waves to gamma rays.

11 Feb 2022

Novel Method to Detect Low-Energy Microwave Photons Emitted by Superconducting Qubits

A theoretical model displays how researchers can detect low-energy microwave photons discharged by superconducting qubits.

10 Feb 2022

Useful Insights into Laser-Matter Interactions

Studies of laser-matter interactions are an important and rapidly growing area of physics. This special issue of EPJ ST, edited by Sivarama Krishnan at the Indian Institute of Technology Madras and Marcel Mudrich at Aarhus University, Denmark, contains a set of 21 articles in this field, encompassing a broad range of experimental and theoretical approaches.

10 Feb 2022

Researchers to Develop a Laser System to Study Ultracold Atoms on the ISS

In early December 2021, the project "Development of a laser system for experiments with Bose-Einstein condensates on the International Space Station within the BECCAL payload (BECCAL-II)" commenced, with the involvement of a team of researchers led by Professor Patrick Windpassinger and Dr. André Wenzlawski from Johannes Gutenberg University Mainz (JGU).

3 Feb 2022

Researchers Find the Optimal Way to Generate High-Energy Protons Using Laser-Plasma Interaction

Proton therapy is a precise and effective treatment for tumours in sensitive areas of the body, such as the brain or the eyes, with the advantage that it spares healthy tissue. In this procedure, protons (positively charged particles) are strongly accelerated and directed with precision into the tumour tissue, which is destroyed in the process. However, this efficient method of treatment has so far required large accelerators, which is why it is only available in major treatment centres.

2 Feb 2022