10 citations · 10 across the 2 of their papers we have counts for
6 papers
High amplification laser-pressure optic enables ultra-low uncertainty measurements at kilowatts
Alexandra B. Artusio-Glimpse, Kyle A. Rogers, Paul A. Williams +1
We present the first measurements of kilowatt laser power with an uncertainty less than 1 %. These represent progress toward the most accurate measurements of laser power above 1 k…
Meta-study of laser power calibrations ranging 20 orders of magnitude with traceability to the kilogram
Paul A. Williams, Matthew T. Spidell, Joshua A. Hadler +11
Laser power metrology at the National Institute of Standards and Technology (NIST) ranges 20 orders of magnitude from photon-counting (1000 photons/s) to 100 kW (10^23 photons/s at…
Calibration of free-space and fiber-coupled single-photon detectors
Thomas Gerrits, Alan Migdall, Joshua C. Bienfang +5
We measure the detection efficiency of single-photon detectors at wavelengths near 851 nm and 1533.6 nm. We investigate the spatial uniformity of one free-space-coupled single-phot…
Time-resolved Absorptance and Melt Pool Dynamics during Intense Laser Irradiation of Metal
Brian J. Simonds, Jeffrey Sowards, Josh Hadler +6
High irradiance lasers incident on metal surfaces create a complex, dynamic process through which the metal can rapidly change from highly reflective to strongly absorbing. Absolut…
Micromachined force scale for optical power measurement by radiation pressure sensing
Ivan Ryger, Alexandra B. Artusio-Glimpse, Paul Williams +5
We introduce a micromachined force scale for laser power measurement by means of radiation pressure sensing. With this technique, the measured laser light is not absorbed and can b…
Carbon Nanotube-Based Black Coatings
J. Lehman, C. Yung, N. Tomlin +2
Coatings comprised of carbon nanotubes are very black; that is, characterized by low reflectance over a broad wavelength range from the visible to far infrared. Arguably there is n…