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Nate Orloff (Fed)

Nate Orloff is a physicist at the National Institute of Standards and Technology (NIST) and an Adjunct Faculty of the University of Colorado.  Nate’s interested in materials properties from dc to daylight, and what we can do with them.  He received a Ph.D. degree from the University of Maryland in 2010.  After postdoctoral appointments at Stanford University and then Rice University, Nate joined the Communications Technology Laboratory in 2014.  Nate’s research spans the broad topic of on-wafer measurement science from 10 Hz to 1 THz.  Selected topics include new standard reference instruments for 5G and beyond, developing the next generation of network analysis with optical frequency combs, and leveraging materials-by-design to build enabling communication technology.  If you are interested in collaborating or working with Nate please feel free to email him at orloff [at]

Research Topics:

  • On-wafer standards
  • Dielectric spectroscopy
  • On-wafer devices

Postdoctoral and Graduate Research Opportunities and Topics

Selected Publications

Selected Awards and Honors

  • Department of Commerce Bronze Medal, 2020
  • American Ceramic Society Karl Schwartzwalder-Professional Achievement in Ceramic Engineering (PACE) Award, 2019
  • Senior member IEEE Society of Microwave Theory and Techniques, 2017
  • Best Speaker Award, Materials Research Society Materials Research Society. Symposium K: Oxide Nanoelectronics, 2009

Selected Professional Service

  • American Ceramic Society Electronics Division Committee, Corporate Relations Chair.
  • American Physical Society Member-At-Large for the Fellowship of Industrial and Applied Physicists
  • Institute of Electrical and Electronics Engineers, Technical Program Committee for the International Microwave Symposium

Selected Funding

  • 2020 Innovation in Measurement Science Grant. Measuring intermolecular interactions with electric-acoustic spectroscopy, National Institute of Standards and Technology. Total award: $7,000,000
  • 2017 Innovation in Measurement Science. DC to 1 THz Large-Amplitude Optoelectronic Multitone Electrical-Signal Synthesizer, National Institute of Standards and Technology. Total award: $7,650,000.
  • 2016 Tailorable Composite Feedstock and Forming Project. Defense Advanced Research Projects Agency. Total award: $780,000.


  • N. D. Orloff, C. J. Long, and J. Obrzut “Noncontact resonameter, process for making and use of same,” U.S. Patent No. 14/958,539.
  • C. J. Long, N. D. Orloff, E. J. Garboczi, and N. B. Popovic, “Scanning Microwave Ellipsometry, Process for Making and Use of Same,” U.S. Patent Application Number 16/864,466 (filed 5/1/2020). Under review at USPTO.



High-Gain 500-GHz InP HBT Power Amplifiers

Jerome Cheron, Rob Jones, Richard Chamberlin, Dylan Williams, Miguel Urteaga, Kassi Smith, Nick Jungwirth, Bryan Bosworth, Chris Long, Nate Orloff, Peter Aaen, Ari Feldman
We report two terahertz monolithic integrated circuit (TMIC) amplifiers operating at 500 GHz. The 6-stage single-ended power amplifiers use Teledyne's 130 nm

Collector Series-Resistor to Stabilize a Broadband 400 GHz Common-Base Amplifier

Jerome Cheron, Dylan Williams, Richard Chamberlin, Miguel Urteaga, Kassi Smith, Nick Jungwirth, Bryan Bosworth, Chris Long, Nate Orloff, Ari Feldman
The indium phosphide (InP) 130 nm double-heterojunction bipolar transistor (DHBT) offers milliwatts of output power and high signal amplification in the lower


A photo of the noncntact dielectric and conductivity meter for high-throughput processing and a circuit diagram of the circuit used to track the resonant frequency and quality factor of the microwave resonator.

Noncontact Resonameter, Process for making and use of same

NIST Inventors
Jan Obrzut , Nate Orloff and Chris Long
Patent Description A noncontact resonameter includes: a resonator to: produce an excitation signal including a field; subject a sample to the excitation signal; produce a first resonator signal in a presence of the sample and the excitation signal, the first resonator signal including: a first
Created July 30, 2019, Updated July 11, 2022