Matthew Spidell
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Multi-facility comparison of InGaAs trap detector responsivity for optical fiber power Open
The absolute responsivity of an optical detector in a trap configuration has been investigated in the interest of high-accuracy fiber-coupled measurements for commercial optical fiber power meters and fiber-coupled single-photon detector c…
Application of voltage controlled crystal oscillators to DC voltage reference validation Open
DC voltage references are typically based on calibrated Zener Diodes which are subject to drift and therefore require periodic recalibration against a Primary Standard. Since it is preferable to maintain constant power to such references, …
View article: Optical Power Scale Realization by Laser Calorimeter after 45 Years of Operation
Optical Power Scale Realization by Laser Calorimeter after 45 Years of Operation Open
To calibrate laser power and energy meters, the National Institute of Standards and Technology (NIST) uses several detector-based realizations of the scale for optical radiant flux; these realizations are appropriate for specific laser pow…
View article: High-accuracy room temperature planar absolute radiometer based on vertically aligned carbon nanotubes
High-accuracy room temperature planar absolute radiometer based on vertically aligned carbon nanotubes Open
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 laser power detector standard at the National Institute of Standards and Techn…
View article: Room temperature laser power standard using a microfabricated, electrical substitution bolometer
Room temperature laser power standard using a microfabricated, electrical substitution bolometer Open
The design and performance of a room temperature electrical substitution radiometer for use as an absolute standard for measuring continuous-wave laser power over a wide range of wavelengths, beam diameters, and powers are described. The s…
Spectral, spatial, and survivability evaluation of a flash-dried plasma-etched nanotube spray coating Open
We demonstrate improved manufacturability of spectrally flat detectors for visible to mid-infrared wavelengths by characterizing a carbon nanotube spray coating compatible with lithium tantalate and other thermal sensors. Compared against …
Comparison of electrostatic and photon pressure force references at the nanonewton level Open
This work describes a metrological comparison between nanonewton force references derived from an electrostatic force balance (EFB) and photon pressure from laser optical power in the 1 Watt range. An EFB is used to measure photon pressure…
View article: Micromachined Force Scale for Optical Power Measurement by Radiation Pressure Sensing
Micromachined Force Scale for Optical Power Measurement by Radiation Pressure Sensing Open
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 be utilized while being measured. We employ silicon micromac…
View article: Micromachined force scale for optical power measurement by radiation\n pressure sensing
Micromachined force scale for optical power measurement by radiation\n pressure sensing Open
We introduce a micromachined force scale for laser power measurement by means\nof radiation pressure sensing. With this technique, the measured laser light is\nnot absorbed and can be utilized while being measured. We employ silicon\nmicro…
Measurement of differential polarizabilities at a mid-infrared wavelength in $^{171}\mathrm{Yb}^+$ Open
An atom exposed to an electric field will experience Stark shifts of its internal energy levels, proportional to their polarizabilities. In optical frequency metrology, the Stark shift due to background black-body radiation (BBR) modifies …
Portable, high-accuracy, non-absorbing laser power measurement at kilowatt levels by means of radiation pressure Open
We describe a non-traditional optical power meter which measures radiation pressure to accurately determine a laser's optical power output. This approach traces its calibration of the optical watt to the kilogram. Our power meter is design…