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Physical Measurement Laboratory

Applied Physics Division

News and Updates

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Record-breaking Detector May Aid Nuclear Inspections

March 14, 2006

Boulder, Colo.—Scientists at the Commerce Department's National Institute of Standards and Technology (NIST) have designed and demonstrated the world's most

The NIST "transition-edge sensor" is made of layers of molybdenum and copper with a coating of bismuth to increase the X-ray stopping power.

Copper Ridges Nearly Double X-ray Sensor Performance

November 17, 2005

A series of copper ridges nearly doubles the resolution of experimental X-ray sensors, enabling more precise identification of the X-ray "fingerprints" of

Laser Measurements Seminar

June 16, 2005

The 20th annual Laser Measurements Short Course sponsored by NIST's Optoelectronics Division will be offered Aug. 9-12, 2005, in Boulder, Colo. The three-day

Micrograph of four NIST single photon detectors

NIST Photon Detectors Have Record Efficiency

June 2, 2005

Sensors that detect and count single photons, the smallest quantities of light, with 88 percent efficiency have been demonstrated by physicists at the National

colorized scanning electron micrograph shows a cube of germanium attached to a membrane.

Chip-scale Refrigerators Cool Bulk Objects

April 21, 2005

Chip-scale refrigerators capable of reaching temperatures as low as 100 milliKelvin have been used to cool bulk objects for the first time, researchers at the

A NIST-developed, carbon nanotube-coated pyroelectric detector that may improve thermal conductivity and resistance to laser damage.

Laser Applications Heat Up for Carbon Nanotubes

January 26, 2005

Carbon nanotubes—a hot nanotechnology with many potential uses—may find one of its quickest applications in the next generation of standards for optical power

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