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Physical Measurement Laboratory

Applied Physics Division

Projects/Programs

Displaying 1 - 25 of 31
Advanced Magnetic Imaging staff

Advanced Magnetic Imaging

Ongoing
The scope of MRI is expanding with the development of both ultra-high field (14 T) and ultra-low field (0.1 mT) scanners not only for biomedical applications
qim image

Advanced Microwave Photonics

Ongoing
Research on quantum information (QI) seeks to control and exploit exotic properties of quantum mechanics, and researchers are already generating "unbreakable"
extreme atom probe tomography illustration

Extreme Atom Probe Tomography

Ongoing
NIST is engaged in a joint effort between the Material Measurement Laboratory (MML) and the Physical Measurement Laboratory (PML) aimed at revolutionizing 3D
Upper: tilt view of hexagonal array of 100-plus nanowires with 100 nm spacing; lower: electroluminescence spectra of GaN LED array showing increasing luminescence with increasing current and peak at 380 nm

GaN Nanowire Growth

Ongoing
GaN nanowires grown by catalyst-free molecular beam epitaxy have the unique property that most nanowires are completely free of crystalline defects. This
laser cutting video

High-Power Laser Applications

Ongoing
High power lasers capable of continuous output powers ranging from hundreds of watts to tens-of-thousands of watts present exciting opportunities for rapid
Laser Power and Energy Meter Calibration team

Laser Power and Energy Meter Calibration

Ongoing
The NIST Laser Power and Energy Calibration Project develops and maintains the U.S. national standards for the characterization of lasers, along with detectors
nano-biophotonics collage

Nano-biophotonics for molecular imaging

Ongoing
Biophotonics is at the intersection of photonics and biology where light is used to image, detect, and manipulate biological materials. This project addresses
(a) Schematic of a near-field scanning microwave microscope (NSMM). (b) NSMM images of a perovskite PV sample, (c) NSMM MoS2 back-gate device, (d) Spatial imaging of excited spin wave modes.

Nanoelectromagnetics

Ongoing
The core activities in this program are the development and application of metrology for quantitative characterization of hetero-structured materials and
A scanning electron micrograph of a QDOGFET device used for photon number-resolving detection.

Nanostructure Fabrication and Metrology

Ongoing
Single photons are the fundamental particles for all optical measurements. Single photon detectors made from avalanche photodiodes or photomultiplier tubes are
Four examples of GaN nanostructures grown with selective epitaxy by molecular beam epitaxy, illustrating different morphology for Ga-polar vs. N-polar crystals.

Nanostructure Synthesis

Ongoing
We synthesize semiconductor nanostructures to serve both as test structures for measurement techniques and as building blocks for novel metrology tools and
neuromorphic icon

Neuromorphic systems

Ongoing
Neuromorphic systems are required to develop cognitive processors as well as to understand how the brain works and how to measure brain function and dysfunction
nanocrystal-labeled T cells

Optical Medical Imaging

Ongoing
The Optical Medical Imaging program was established to advance the application of optical imaging in surgical, clinical, and medical practices. Our goal is
tennis racket and mirror

The Photoforce Project

Ongoing
With the success of fiber and disk laser technology, high-power lasers are increasingly popular in manufacturing processes such as welding, cutting, laser
Planar absolute cryogenic radiometer with multiwall vertically-aligned carbon nanotubes. Superconducting transition-edge sensor. Fully-lithographic fabrication.

Photonic Radiometry

Ongoing
Accurate characterization of photonic equipment is important for optical communications, medical devices, semiconductor lithography, manufacturing and materials
He4 cryostat

Physics and Hardware for Intelligence

Ongoing
Artificial intelligence increasingly affects many aspects of society. New computational hardware based on information-processing in the brain is being developed
MRI standards

Quantitative MRI

Ongoing
The Quantitative MRI project develops calibration structures (phantoms) and validates quantitative imaging protocols for magnetic resonance imaging (MRI)
single photon detector system

Quantum Radiometry Project

Ongoing
Calibrated and characterized single photon sources and detectors are building blocks of the infrastructure required to achieve widely used, industrialized