Related topics: nanoparticles · nanoscale · nanotechnology · molecules · light

Deciphering the deep dynamics of electric charge

Research led by Oak Ridge National Laboratory's Marti Checa and Liam Collins has pioneered a groundbreaking approach, described in the journal Nature Communications, toward understanding the behavior of an electric charge ...

Team unveils new path for dense photonic integration

Integrated optical semiconductor (hereinafter referred to as optical semiconductor) technology is a next-generation technology for which many researches and investments are being made worldwide because it can make complex ...

Microstructured fiber measures the size of nanoparticles

Researchers at Leibniz Institute of Photonic Technology (Leibniz IPHT) developed a new glass fiber design that enables exceptionally long observations of a large number of individual, freely moving nanoparticles in a liquid. ...

Stable, faster computer memory storage at the nanometer scale

Unlike in humans, when computer "brains" evolve, they get smaller and smaller. This is because the components that perform calculations and consolidate stored information work more efficiently when there are more of them ...

Nanoporous intermetallic compounds that boost hydrogen production

Hydrogen has the highest energy density (120 MJ/kg) of all known substances, approximately three times more than diesel or gasoline, meaning it could play a pivotal role in sustainable energy systems. But the efficient production ...

Researchers demonstrate chemically sensitive LiDAR method

Researchers have developed a new laser-based technique that can simultaneously perform LiDAR and remote chemical measurements. LiDAR, which stands for light detection and ranging, uses a laser to measure distances, or ranges. ...

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Nanometre

A nanometre (American spelling: nanometer; symbol nm) (Greek: νάνος, nanos, "dwarf"; μέτρον, metrοn, "unit of measurement") is a unit of length in the metric system, equal to one billionth of a metre (i.e., 10-9 m or one millionth of a millimetre).

It is one of the more often used units for very small lengths, and equals ten Ångström, an internationally recognized non-SI unit of length. It is often associated with the field of nanotechnology and the wavelength of light. Formerly, millimicron (symbol ) was used for the nanometre. The symbol µµ has also been used .

It is also the most common unit used to describe the manufacturing technology used in the semiconductor industry. It is the most common unit to describe the wavelength of light, with visible light falling in the region of 400–700 nm. The data in compact discs is stored as indentations (known as pits) that are approximately 100 nm deep by 500 nm wide. Reading an optical disk requires a laser with a wavelength 4 times the pit depth -- a CD requires a 780 nm wavelength (near infrared) laser, while the shallower pits of a DVD requires a shorter 650 nm wavelength (red) laser, and the even shallower pits of a Blu-ray Disc require a shorter 405 nm wavelength (blue) laser.

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