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Physical Measurement Laboratory

Time and Frequency Division

Projects/Programs

Displaying 1 - 20 of 20
CaPhoto

Calcium Thermal Beam Optical Clock

Ongoing
A simple, compact alternative to the highest performing optical standards, the Ca clock uses a thermal beam of neutral atoms with one or two lasers to achieve
Compact Cold Atom Clock

Compact Cold Atom Instruments

Ongoing
The cooling of atoms to microkelvin temperatures using lasers is currently enabling a new generation of precision instruments that take advantage of the long
Web interface to control and monitor the servo with interactive blocks

FPGA Design

Ongoing
Our group is developing FPGA based digital phase noise measurement and control systems.
CombSpec1

Frequency Comb Spectroscopy

Ongoing
We use frequency combs based on ultrafast mode-locked lasers to perform precision spectroscopy in the near- and mid-infrared domains, for rapid, high
YellowSystem

Yb Lattice Clock

Ongoing
Our Group is developing high stability, high accuracy optical atomic clocks based on thousands of Yb atoms confined to an optical lattice. Such clocks will find
Microcombs2

Microresonator Device Research

Ongoing
With micro-resonators (fabricated in house or by collaborators) we are developing microcombs, integrated reference cavities and low-noise laser sources. The
NIST on a chip

NIST-on-a-Chip in ADI

Ongoing
We are developing core technology tools to enable chip-scale standards that realize a broad range of base and derived SI units in compact, manufacturable
Measurement device for signals in the W band (75-110 GHz)

Noise Metrology

Ongoing
We provide state-of-the-art phase and amplitude noise measurements for signals from RF to optical frequencies.
Laser_linewidth

Optical Cavities for Laser Stabilization

Ongoing
Optical cavities are essential elements of optical atomic clocks, as they serve to pre-stabilize the clock laser. Our Group is currently developing state-of-the