0.395 THz Surface Wave Oscillator for DNP-NMR Applications

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The simulation and design of an oversized, two-dimensional, periodic surface lattice (2D PSL) interaction cavity used within a 0.395 THz, pulsed radiation source is presented. Powerful, pulsed radiation with good spectral purity is demonstrated. The device is well-suited for use in DNP-NMR spectroscopy and has numerous other applications due to the scalability of the interaction cavity allowing for radiation output at different frequencies. The device exploits the coupling of volume and surface fields in the 2D PSL interaction cavity to excite a single cavity eigenmode. The observed output power is 13.5kW and the efficiency of the device is 27%
Original languageEnglish
Publication statusPublished - 15 Sep 2021
Event14th UK-Europe-China Workshop on Millimetre Waves and THz Technologies (UCMMT 2021) - UK VIRTUAL , Lancaster, United Kingdom
Duration: 13 Sep 202115 Sep 2021


Conference14th UK-Europe-China Workshop on Millimetre Waves and THz Technologies (UCMMT 2021)
Abbreviated titleUCMMT 2021
Country/TerritoryUnited Kingdom
Internet address


  • terahertz
  • surface field
  • mode coupling
  • high-power
  • oscillator

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