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Physical Measurement Laboratory

Applied Physics Division

Patents

Searches Patent Title, Abstract, Body, Technology Type, and NIST Inventors
Displaying 1 - 12 of 12

QUANTUM WAVEGUIDE INFRARED PHOTODETECTOR

NIST Inventors
Eric Stanton
patent description The QWIP was first demonstrated in 1987 [1] and consistent research since then has improved the QWIP detection efficiency, but only for surface normal detection. Development of the QWIP was originally intended for infrared focal plane arrays suitable for infrared cameras. One
image for 10,837,828

Non-attenuating Meter for Determining Optical Energy of Laser Light

NIST Inventors
John H. Lehman , Matthew Spidell and Paul A. Williams
Patent description NIST has invented a device that permits full and accurate characterization of a laser beam without attenuating the laser beam or perturbing its direction. The unique three-mirror design allows the absolute power to be measured via radiation pressure (from the force on one mirror)

Recessed Carbon Nanotube Article and Method for Making Same

NIST Inventors
Chris Yung , Nathan A Tomlin and Dan Schmidt
patent description The proposed invention is a microbolometer array utilizing vertically aligned carbon nanotubes (V ACNTs) as broadband absorbing elements inside wells micromachined into a substrate. Membranes at the base of each well support the VACNTs and act as a weak thermal link. The VACNTs

Liquid Crystal Thermometer for MRI

NIST Inventors
Elizabeth Mirowski , Michael Snow and Kathryn Keenan
patent description The invention is liquid crystals with phase change from cholesteric state to isotropic liquid state at a particular temperature. In the MRI, the cholesteric state has dark signal (similar to a solid) due to sho1t T2 and the isotropic liquid state has a bright signal (similar to
Line drawing of the thermal impedance amplifier

Thermal Impedance Amplifier

NIST Inventors
Adam McCaughan , Varun Verma , Sonia Buckley and Sae Woo Nam
Patent Description Presently, superconducting electronics are being applied to areas such as computational backends for future quantum processors, high-performance supercomputing, and ultrafast digital signal processing. In all of these areas, data must be communicated between the superconducting
Powerpoint slide, showing via map and photograhpy, the distance from NIST Boulder to Valmont Butte

Optical Time Distributor and Process for Optical Two-Way Time-Frequency Transfer

NIST Inventors
William C. Swann
Patent Description The invention is a method to compare and synchronize "clocks" (i.e. local timescales) through optical links across free space, which include open air paths through the atmosphere to other terrestrial sites or to satellites, as well as satellite-to-satellite paths. The challenge is
Image of an map view with the text "Natural gas extraction east of Platteville Colorado. DCS could monitor over 100 sites from central location. Overlapping fields could ensure complete coverage".

Hub and Spoke System for Detecting and Locating Gas Leaks

NIST Inventors
Ian Coddington , Kuldeep Prasad and Anna Karion
Patent Description The current practice for detecting methane leaks is still in its infancy. There are several environmental regulations that have driven the development of Forward-looking Infrared (FLIR) cameras, thermographic cameras that senses infrared radiation, for detection of Volatile
A line drawing showing the entire structure, which includes the resonator and supporting substrate.

Reticulated Resonator, Process for Making and Use of Same

NIST Inventors
Raymond Simmonds , Katarina Cicak , Cindy Regal and Thomas Purdy
Patent Description Mechanical resonators are widely used in wireless receivers, bio sensors, and timing and frequency control. Besides industry, in recent years in academia there is also considerable interest for ultrahigh precision sensing and fundamental science. A mechanical resonator with the