Advanced atomic clock makes a better dark matter detector
JILA researchers have used a state-of-the-art atomic clock to narrow the search for elusive dark matter, an example of how continual improvements in clocks have value beyond timekeeping.
JILA researchers have used a state-of-the-art atomic clock to narrow the search for elusive dark matter, an example of how continual improvements in clocks have value beyond timekeeping.
General Physics
Nov 12, 2020
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Using plasma to control microwaves for beaming direct energy toward a specific point is explored for their durability in high-energy electric fields and their reconfigurable structure. High power microwave beams, similar ...
Plasma Physics
Apr 7, 2020
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133
In a new Nature study, Columbia Engineering researchers have built a photonic chip that is able to produce high-quality, ultra-low-noise microwave signals using only a single laser. The compact deviceāa chip so small, it ...
Optics & Photonics
Mar 20, 2024
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503
Researchers from the labs of Lan Yang, the Edwin H. & Florence G. Skinner Professor, and Xuan "Silvia" Zhang, associate professor, at the McKelvey School of Engineering at Washington University in St. Louis, have developed ...
Nanophysics
Apr 5, 2022
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605
Researchers at Chalmers University of Technology (Sweden) have for the first time demonstrated a novel subharmonic graphene FET mixer at microwave frequencies. The mixer provides new opportunities in future electronics, as ...
Nanophysics
Jan 3, 2012
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A new publication in Opto-Electronic Advances overviews dynamic metasurfaces and metadevices empowered by graphene.
Nanomaterials
May 5, 2022
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A new tool for generating microwave signals could help propel advances in wireless communication, imaging, atomic clocks, and more.
Optics & Photonics
Jun 21, 2023
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72
By bouncing eye-safe laser pulses off a mirror on a hillside, researchers at the National Institute of Standards and Technology (NIST) have transferred ultraprecise time signals through open air with unprecedented precision ...
Optics & Photonics
May 1, 2013
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Spintronics researchers have developed a phase locked loop (PLL) circuit designed to stabilize the oscillation frequency of a spin torque oscillator (STO), and demonstrated generation of a highly coherent microwave signal ...
Electronics & Semiconductors
Jun 17, 2016
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11
They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a ...
General Physics
Mar 18, 2009
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