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Nanophysics Feb 25, 2025

Laser-textured metal surfaces mimic shark skin to combat bacterial biofilms

Keeping work surfaces clean during meat processing is a challenge. Bacteria from meat can attach, grow, and build up to create a biofilm that is difficult to remove, even on stainless steel surfaces used in industrial facilities. ...

Astrobiology Feb 25, 2025

Laser-powered device tested on Earth could help detect microbial fossils on Mars

The first life on Earth formed four billion years ago, as microbes living in pools and seas: what if the same thing happened on Mars? If it did, how would we prove it? Scientists hoping to identify fossil evidence of ancient ...

Analytical Chemistry Feb 21, 2025

Non-invasive laser method identifies preservation fluids without opening artifact specimens

Research teams have developed a new approach to identifying the chemical composition of preservation fluids in historic jars without opening them.

Optics & Photonics Feb 19, 2025

Laser-based device can scan almost any sample of gas and tell you what's in it

Expert sommeliers can take a whiff of a glass of wine and tell you a lot about what's in your pinot noir or cabernet sauvignon. A team of physicists at CU Boulder and the National Institute of Standards and Technology (NIST) ...

Optics & Photonics Feb 18, 2025

Researchers develop first room temperature holmium-doped yttrium lithium fluoride thin disk laser

In a study published in Optics Express, a research group led by Prof. Fu Yuxi from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences has developed the first room temperature holmium-doped ...

Optics & Photonics Feb 11, 2025

Researchers provide mathematical solutions to study 2D light interaction in photonic crystal lasers

Laser diodes are semiconductors that generate light and amplify it using repeated reflection or "optical feedback." Once the light has achieved desirable optical gain, laser diodes release it as powerful laser beams.

Optics & Photonics Feb 11, 2025

Innovative target design leads to surprising discovery in laser-plasma acceleration

Scientists have developed a method for generating fast, bright proton beams using a high-repetition-rate laser-plasma accelerator. This work, published in Nature Communications, resolves several long-standing challenges and ...

Optics & Photonics Feb 11, 2025

A promising technique to steer laser-produced THz radiation in air

Terahertz radiation (THz), electromagnetic radiation with frequencies ranging from 0.1 and 10 THz, is central to the functioning of various technologies, including imaging, sensing and spectroscopy tools. While THz radiation ...

Biotechnology Feb 3, 2025

Illuminating the elements under our feet: Laser tool offers insights into plant growth and soil health

A vast field of tall, skinny trees sways in a light breeze. In the future, poplar trees in a scene like this could be a source of sustainable fuel to power aircraft or heavy vehicles. They could also help us store more carbon ...

Optics & Photonics Jan 31, 2025

Coupled semiconductor lasers generate novel optical patterns, enabling new spectroscopy techniques

The physical interaction between two or more systems, also known as coupling, can give rise to unique and unexpected effects. In the field of optics, coupled light sources (e.g., lasers) can influence each other, producing ...

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