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Physical Measurement Laboratory

Applied Physics Division

Projects/Programs

Displaying 1 - 25 of 32
advanced imaging

Advanced Magnetic Imaging Methods

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

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

Extreme Atom Probe Tomography

NIST has recently begun a multi-year joint effort between the Material Measurement Laboratory (MML) and the Physical Measurement Laboratory (PML) aimed at

Fiber Sources and Applications

Optical frequency combs convert a laser source containing a single frequency of light into pulses that include thousands of frequencies. This project aims to
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

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

High power lasers capable of continuous output powers ranging from hundreds of watts to tens-of-thousands of watts present exciting opportunities for rapid
Planar absolute cryogenic radiometer with multiwall vertically-aligned carbon nanotubes. Superconducting transition-edge sensor. Fully-lithographic fabrication.

Laser Radiometry

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

The core activities in this program are the development and application of metrology for quantitative characterization of hetero-structured materials and
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

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

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

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

With the success of fiber and disk laser technology, high-power lasers are increasingly popular in manufacturing processes such as welding, cutting, laser
He4 cryostat

Physics and Hardware for Intelligence

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

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

Quantum Radiometry Project

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