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A new type of miniature atomic clock could provide better timing over the span of weeks and months compared with current systems.

RALEIGH, N.C. (WTVD) -- Working on the finishing touches because opening day is finally here. "It's been sort of a roller coaster of hope and fear and all those sorts of things," said Kevin Callaghan, co-owner and chef at Heyday Brewing. Heyday Brewing in north Raleigh planned to open months ago. But the pandemic put their plans on pause. "A lot of the parts of the process got pushed back because of supply issues and bringing things in that we needed to be able to run the restaurant," Callaghan said. But now, they've got all the equipment they need.

Simpler laser cooling offers route to chip-scale cold atom devices 27 Jan 2021 NIST project employs metasurface beam shaping and planar optics. Caught in a trap: laser cooling Laser cooling, in which carefully arranged laser beams can reduce the momentum of an atom to the point where the it can be individually caught by a magnetic field, is an important technology for future quantum networking and other applications. The optical platforms to produce and trap these cold atoms have to date tended to be large and complex, limiting the practical uses to which the principle has been put. A pro...

Nanotechnology Now Home > Press > Bringing Atoms to a Standstill: NIST Miniaturizes Laser Cooling January Credit: NIST Illustration of a new optical system to miniaturize the laser cooling of atoms, a key step towards cooling atoms on a microchip. A beam of laser light is launched from a photonic integrated circuit (PIC), aided by an element called an extreme mode converter (EMC) that greatly expands the beam. The beam then strikes a carefully engineered, ultrathin film known as a metasurface (MS), which is studded with tiny pillars that further expand and shape the beam. The beam is diffract...

Illustration of a new optical system to miniaturize the laser cooling of atoms, a key step towards cooling atoms on a microchip. A beam of laser light is launched from a photonic integrated circuit (PIC), aided by an element called an extreme mode converter (EMC) that greatly expands the beam. The beam then strikes a carefully engineered, ultrathin film known as a metasurface (MS), which is studded with tiny pillars that further expand and shape the beam. The beam is diffracted from a grating chip to form multiple overlapping laser beams inside a vacuum chamber. The combination of laser beams...