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World-first: Speed of Sound Used to Measure Elasticity of Materials

Researchers at the University of Nottingham have devised a revolutionary new technique for measuring the microscopic elasticity of materials for the first time. Known as SRAS, the technology works by measuring the speed of sound across the material’s surface.

17 Feb 2022

Researchers Alter the Atomic Structure of a Thermoelectric Material with Intense Pulses of Laser Light

X-Ray laser experiments reveal that intense light deforms the structure of a thermoelectric material in an exceptional manner, revealing a new possibility for regulating material properties.

15 Feb 2022

Femtosecond Lasers Used to Attain Superwettability in Various Materials

More than billions of years of evolution, numerous organisms in nature have displayed exceptional surface wettability.

11 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

Distributed Kerr-Lens Mode Locked Yb: YAG Thin-Disk Oscillator Generates sub-50 Femtosecond Pulses

Ultrafast laser oscillators are indispensable tools for diverse applications in scientific research and industry. When the phases of the longitudinal laser cavity modes are locked, pulses as short as a few femtoseconds can be generated.

11 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

New Concept of an Optical Bottle-Beam Trap for Lab-on-a-Chip

Tomsk Polytechnic University (TMU), researchers along with their co-workers from the National Chiao Tung University (Taiwan) suggested a novel concept of a new optical bottle-beam trap.

8 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

New Approach Moves Trapped Ion Pairs Through a Laser Beam to Create Entangled Gates

Trapped ions excited with a laser beam can be used to create entangled qubits in quantum information systems, but addressing several stationary pairs of ions in a trap requires multiple optical switches and complex controls. Now, scientists at the Georgia Tech Research Institute (GTRI) have demonstrated the feasibility of a new approach that moves trapped ion pairs through a single laser beam, potentially reducing power requirements and simplifying the system.

31 Jan 2022

Scientists Report a New Class of Chirp-Free Pulse in Normal-Dispersion Fiber Lasers

Over the past decades, researchers have demonstrated conventional solitons, stretched pulses, self-similar pulses, and dissipative solitons by managing the dispersion and nonlinearity of fiber lasers.

31 Jan 2022