Search results for infrared

Astronomy Sep 27, 2023

Giant mid-infrared outburst detected from a distant young stellar object

By conducting a blind search for large amplitude mid-infrared variables in the Wide Infrared Sky Explorer (WISE) archive, Chinese astronomers have serendipitously discovered a giant mid-infrared outburst from a distant young ...

Nanomaterials Sep 13, 2023

Copper-infused nanocrystals boost infrared light conversion

Sunlight is an inexhaustible source of energy, and utilizing sunlight to generate electricity is one of the cornerstones of renewable energy. More than 40% of the sunlight that falls on Earth is in the infrared, visible and ...

Optics & Photonics Sep 4, 2023

Infrared avalanche photodiodes from bulk to 2D materials

The avalanche multiplication effect can be used to detect low-power optical signals and even single photons due to the amplification mechanism within all main ranges: near- (NIR), short- (SWIR), mid- (MWIR) and long wavelength ...

Optics & Photonics Sep 1, 2023

Raman amplification at 2.2 μm in silicon core fibers with prospects for extended mid-infrared source generation

The mid-infrared spectral region has attracted great research interest over the past decade, as it is important for many biomedical and sensing applications. However, there is still a major challenge to develop compact and ...

Optics & Photonics Aug 28, 2023

Making the invisible, visible: New method makes mid-infrared light detectable at room temperature

Scientists from the University of Birmingham and the University of Cambridge have developed a new method for detecting mid-infrared (MIR) light at room temperature using quantum systems.

Biochemistry Aug 27, 2023

Bioactive near-infrared II clusters for 3D imaging and acute inflammation inhibition

The bioactivity of most near-infrared II (NIRII) fluorophores are limited, thereby conflicting the achievement of strong fluorescence and high catalytic activities, due to a lack of free electrons in the method.

Astronomy Aug 25, 2023

First observations ever of the outskirts of a supermassive black hole's accretion disk

Nothing can evoke an existential perspective-spiral quite like looking at an image of a galaxy. At first glance, these sublime structures may appear rather serene. But in fact the center of many galaxies is a turbulent environment ...

Optics & Photonics Aug 23, 2023

Scientists demonstrate intense ultraviolet-visible-infrared full-spectrum laser

A high-brightness ultrabroadband supercontinuum white laser has attracted more and more attention in physics, chemistry, biology, materials science, and other disciplines of science and technology. Over the past decades, ...

Earth Sciences Aug 15, 2023

More Arctic sea ice cracks spotted by SDGSAT-1 satellite

Based on spaceborne high-resolution thermal infrared observation, a research team from the International Research Center of Big Data for Sustainable Development Goals (CBAS) and the Aerospace Information Research Institute ...

Optics & Photonics Aug 1, 2023

Novel algorithm proposed for efficient selection of variables in chemometrics applications

A new variable selection method for use in chemometrics applications has recently been proposed by a team of researchers from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences. They call the algorithm ...

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