Physical Measurement Laboratory | NIST

Source: https://www.nist.gov/pml

Archived: 2026-04-23 15:01

Physical Measurement Laboratory | NIST
Skip to main content
Official websites use .gov
A
.gov
website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A
lock
(
) or
https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
https://www.nist.gov/pml
Physical Measurement Laboratory
Developing and delivering trusted measurements to support national needs.
Divisions
Applied Physics Division
Microsystems and Nanotechnology Division
Nanoscale Device Characterization Division
Office of Weights and Measures
Quantum Measurement Division
Quantum Physics Division
Quantum Sensors Division
Radiation Physics Division
Sensor Science Division
Time and Frequency Division
U.S. Survey Foot
Connect with us
GovDelivery
NIST Weighs In on the Mystery of the Gravitational Constant
Any Color You Like: NIST Scientists Create ‘Any Wavelength’ Lasers in Tiny Circuits for Light
News and Updates
A NIST researcher has unveiled the results of a 10-year quest to measure the constant.
NIST scientists and collaborators have pioneered a way to make integrated circuits for light by depositing complex patterns of specialized materials onto...
The advance could allow these technologies to operate in deep-space probes, inside nuclear reactors, in ultrahigh vacuum systems, and at temperatures both near...
The NIST Office of Weights and Measures is pleased to announce the schedule for the 2026 OWM Info Hours series. An Info Hour is a one-hour session that features...
Events
The 5-day Fundamentals of Metrology seminar is an intensive course that introduces participants to the concepts of
This Info Hour will provide a short introduction of EU regulations to US stakeholders with respect to legal metrology
The CCM Task Group on the Phases for the Dissemination of the kilogram following redefinition (CCM-TGPfD-kg) has
NIST Handbook 143, Program Handbook (2019) details the criteria used for OWM Laboratory Recognition. NIST Handbook 143
Awards
Ye is “recognized for his curiosity and his hands-on approach to experimentation,” according to the Quantum 100 list. “He has built a world-class research program using light, atoms, molecules, and advanced optical tools to explore nature with unprec
For the development of the first imaging performance standard for millimeter-wave systems for security screening of humans.
Principal Investigators: Lilliam Ambroggio, PhD (CU Anschutz) and Jun Ye, PhD (CU Boulder) Using quantum sensing and advanced laser technologies, this project aims to develop a new breath test to help doctors quickly and safely differentiate between...
Michelle Stephens is being recognized in the Leadership-Management category for advancing the accurate measurement of infrared and optical radiation required for defense, climate, and fundamental science, such as determining the output of high-power...
Shannon Duff has received a 2024 Arthur S. Flemming Award in the Applied Science and Engineering category for her outstanding federal service in establishing a program to produce sensor arrays for measurements of the cosmic microwave background...
View All Awards
Press Coverage
Physicists have spent the past decade trying to pin down the elusive fundamental constant, to no avail.
Researchers at the National Institute of Standards and Technology (NIST) have developed a new class of photonic integrated circuits capable of generating laser...
“The experiment took me about 10 years to complete,” says Schlamminger, of the National Institute of Standards and Technology in Gaithersburg, Md. “The results...
NIST’s chips could help emerging technologies such as quantum computers and optical atomic clocks escape the lab and start to impact biomedicine, navigation...
Patents
Optical photonic integrated optical clocks on photonic integrated circuits are described. The optical clocks can provide the timing stability of atomic clocks at ultra-low size and power. The optical clocks are be fabricated using CMOS foundry fabrication processes.
A method of designing a continuous-wave laser source having a target output wavelength and an input laser with a wavelength different from the target output wavelength includes the steps of receiving the target output wavelength, and subordinate properties of the laser source; determining a
A hyperpolarization micro-magnetic resonance imager for three-dimensional imaging of a biological composition with cellular resolution includes a hyperpolarizer source, hyperpolarizer transmission line, an NMR console, a nuclear magnetic resonance tuned circuit, an imaging cell, a magnet, a gradient
A sound pressure metrology instrument determines sound pressure from index of refraction and includes: a light source that produces source light; the optical cavity that: receives an acoustic field from the sound source; receives the source light from the light source; produces acoustic-modified
Contacts
PML Director and Deputy Director
James G. Kushmerick
[email protected]
(301) 975-4200
Gerald T. Fraser
[email protected]
(301) 975-3797
Associate Director for Measurement Services and Associate Director
James A. Fedchak
[email protected]
(301) 975-2223
Barbara L. Goldstein
[email protected]
(301) 975-2304
Was this page helpful?