Skip to main content
U.S. flag

An official website of the United States government

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.


Displaying 1 - 25 of 40

Advanced Microwave Photonics

Research on quantum information (QI) seeks to control and exploit exotic properties of quantum mechanics, and researchers are already generating "unbreakable"

Applications of Quantum Information

Theory is being developed and used to devise methods for preserving and exploiting the quantum behavior of ever-larger systems for metrology, communication, and

Atomic Spectroscopy Data Center

Critical compilations of atomic energy levels, transition wavelengths, and transition probabilities. Online databases.

Atomic Standard for Pressure

NIST scientists are developing a highly accurate primary standard for pressure in the range 2 MPa to 7 MPa based on fundamental physical properties of helium

Atomic Wavefunctions

NIST scientists are actively developing new algorithms for extremely high-accuracy computation of non-relativistic eigenstates of few-electron atomic systems.

Calibration of Force Transducers

NIST provides calibration services for force-measuring instruments by applying known forces, compression, tension or both, to the elastic transducer and

Calibration of Mass Standards

The NIST Mass and Force Group disseminates the unit of mass, the kilogram, to the US measurement system through calibrations of customer weights and weight sets

Electronic Material Characterization

To provide the necessary information for electronic material manufacturers to predict how and when failures will occur and enable lifetime analysis appropriate


The application of modern micro- and nanofabrication techniques to superconducting and cryogenic electronics is enabling new capabilities and applications.

Fundamental Constants in Nature

We are involved in efforts to collate data on precision measurements and the theoretical description of these measurements with the aim to improve the values of

High Resolution Atomic Spectroscopy

Accurate measurements of atomic wavelengths, energy levels, oscillator strengths and isotope and hyperfine structure using diffraction grating spectrographs

ITL Quantum Information Program

Quantum science and engineering has the potential to revolutionize 21st century technology in much the same way that lasers, electronics, and computing did in

Micro- and nano-optomechanical systems

Light can interact with mechanical systems in interesting and useful ways, not only probing the mechanical motion with spectacular sensitivity, but also driving