Optical / photometry / laser metrology

News and Updates

Escape From Flatland: Calibration Method Enables Microscopes to Make Accurate Measurements in All 3 Dimensions

June 24, 2021

Conventional microscopes provide essential information about samples in two dimensions — the plane of the microscope slide. But flat is not all that. In many

Detecting mid-infrared light, one photon at a time

June 1, 2021

For some 30 years, scientists have used superconducting materials to record the tiniest specks of light imaginable — individual photons, or single particles of

Man standing next to equipment on top of building during a sunset.

Commerce Building Now Part of NOAA, NIST Weather and Greenhouse Gas Tracking Network

April 19, 2021

The National Oceanic and Atmospheric Administration (NOAA) and the National Institute of Standards and Technology (NIST) have installed a Doppler lidar

Projects and Programs

Metrology of Dim Light Sources

Luminescent tags are molecular highlighters. They enable light-based biological assays, visualize biological processes, and are used as diagnostic and

Quantitative Information from Images

Photographs, or optical light images, are spatial records of light reflected or emitted from objects. Thus, they are prospective light measurements. In many

Optical Radiation Metrology and Standard Radiometers

Radiometric, radiance temperature, photometric, and color scales have been realized based on the spectral responsivity of standard detectors and radiometers

Normalized Spectra for 3 types of Night Vision Goggles, a blackbody, and an IR LED

Night Vision Goggle Gain Calibration

NIST cooperates with the three services (Air Force, Navy, and Army) to realize a uniform night vision goggle (NVG) calibration system with low measurement

Publications

High amplification laser-pressure optic enables ultra-low uncertainty measurements of optical laser power at kilowatt levels

October 15, 2021

Author(s)

Aly Artusio-Glimpse, Kyle Rogers, Paul A. Williams, John H. Lehman

We present the first measurements of kilowatt laser power with an uncertainty less than 1 %. These represent progress toward the most accurate measurements of

Quantum-Based Photonic Sensors for Pressure, Vacuum, and Temperature Measurements: A Vison of the Future with NIST on a Chip

September 17, 2021

Author(s)

Jay H. Hendricks, Zeeshan Ahmed, Daniel Barker, Kevin O. Douglass, Stephen Eckel, James A. Fedchak, Nikolai Klimov, Jacob Edmond Ricker, Julia Scherschligt

The NIST on a Chip (NOAC) program's central idea is the idea that measurement technology can be developed to enable metrology to be performed "outside the

High-accuracy room temperature planar absolute radiometer based on vertically aligned carbon nanotubes

July 1, 2021

Author(s)

Anna Vaskuri, Michelle Stephens, Nathan Tomlin, Matthew Spidell, Christopher Yung, Andrew Walowitz, Cameron Straatsma, David Harber, John H. Lehman

We have developed a Planar Absolute Radiometer for Room Temperature (PARRoT) that will replace the legacy C-series calorimeter as the free-space continuous-wave

Optical Power Scale Realization by Laser Calorimeter after 45 Years of Operation

June 28, 2021

Author(s)

Matthew Spidell, Anna Vaskuri

To calibrate laser power and energy meters, the National Institute of Standards and Technology (NIST) uses several detector-based realizations of the scale for

Software

JB95 Spectral fitting program

February 19, 2016

A graphical user interface program, JB95, based on a Windows 95© API platform has been written in the C programming language to aid in the analysis of complex

FPGA-based Digital Control Box for Phase Stabilization of a Frequency Comb

October 1, 2015

This page provides information on firmware/software used at NIST to phase-lock a frequency comb. The firmware/software operates with hardware that was developed

SCATMECH: Polarized light scattering C++ class library

SCATMECH is an object-oriented C++ class library developed to distribute models for light scattering applications. Included in the library are models for

Noncollinear phase matching in uniaxial and biaxial crystals

Although significant work has been done to characterize collinear phase matching and to present many of its applications, noncollinear phase matching in both

Tools and Instruments

Awards

2018 SPIE Fellow - Dr. Leonard Hanssen

For achievements in infrared optical property measurement and standards.

Optical / photometry / laser metrology

News and Updates

Escape From Flatland: Calibration Method Enables Microscopes to Make Accurate Measurements in All 3 Dimensions

Detecting mid-infrared light, one photon at a time

Commerce Building Now Part of NOAA, NIST Weather and Greenhouse Gas Tracking Network

Projects and Programs

Metrology of Dim Light Sources

Quantitative Information from Images

Optical Radiation Metrology and Standard Radiometers

Night Vision Goggle Gain Calibration

Publications

High amplification laser-pressure optic enables ultra-low uncertainty measurements of optical laser power at kilowatt levels

Quantum-Based Photonic Sensors for Pressure, Vacuum, and Temperature Measurements: A Vison of the Future with NIST on a Chip

High-accuracy room temperature planar absolute radiometer based on vertically aligned carbon nanotubes

Optical Power Scale Realization by Laser Calorimeter after 45 Years of Operation

Software

JB95 Spectral fitting program

FPGA-based Digital Control Box for Phase Stabilization of a Frequency Comb

SCATMECH: Polarized light scattering C++ class library

Noncollinear phase matching in uniaxial and biaxial crystals

Tools and Instruments

Beamline 8: Surface chemistry & durability of EUV optics

Beamline 1: Degradation of EUV filters and mirrors

Complete hemispherical infrared laser-based reflectometer (CHILR)

System for infrared spectral emittance of materials

Awards

2018 SPIE Fellow - Dr. Leonard Hanssen