Superconducting THz Emitters and Receivers in YBCO Utilizing Focused Helium Beam Nanolithography

Abstract

Report developed under SBIR contract for topic AF181-004. There exists an under-utilized portion of the electromagnetic spectrum, located between the microwave and infrared wavelengths, known as terahertz radiation. In this Phase I effort, we developed THz transmitters and receivers by using Helium ion beam nano-lithography to fabricate Josephson junction arrays in YBCO, and evaluated their effectiveness at generating and detecting THz radiation. These transmitter and receiver devices were then tested in tandem with the goal of using the receiver to detect power radiated from the emitter at THz frequencies. Furthermore, we have developed a cryopackaging solution for a Phase II prototype THz spectrometer employing these HTS THz transmitters and receivers to interrogate the transmission, reflection, and absorption spectra of a sample-under-test.

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Document Details

Document Type
Technical Report
Publication Date
Jul 15, 2019
Accession Number
AD1090377

Entities

People

  • Anthony Cortez
  • Douglas Paulson
  • Ethan Y Cho
  • Kevin Pratt
  • Shane A Cybart

Organizations

  • University of California

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Spectra
  • Detection
  • Detectors
  • Diffraction
  • Electric Fields
  • Electrical Measurement
  • Electromagnetic Radiation
  • Electromagnetic Spectra
  • Electronics
  • Electrons
  • Fabrication
  • Free Electron Lasers
  • Frequency
  • Ion Beams
  • Ions
  • Josephson Junctions
  • Lithography
  • Magnetic Fields
  • Measurement
  • Quantum Cascade Lasers
  • Radiation
  • Semiconductor Devices
  • Spectra
  • Terahertz Radiation

Fields of Study

  • Physics

Readers

  • Nanofabrication and Microfabrication.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Radio communications and signal processing.