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Title: Tuner and radiation shield for planar electron paramagnetic resonance microresonators

Planar microresonators provide a large boost of sensitivity for small samples. They can be manufactured lithographically to a wide range of target parameters. The coupler between the resonator and the microwave feedline can be integrated into this design. To optimize the coupling and to compensate manufacturing tolerances, it is sometimes desirable to have a tuning element available that can be adjusted when the resonator is connected to the spectrometer. This paper presents a simple design that allows one to bring undercoupled resonators into the condition for critical coupling. In addition, it also reduces radiation losses and thereby increases the quality factor and the sensitivity of the resonator.
Authors:
;  [1]
  1. Fakult├Ąt Physik, TU Dortmund, 44221 Dortmund (Germany)
Publication Date:
OSTI Identifier:
22392376
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ELECTRON SPIN RESONANCE; LOSSES; MANUFACTURING; MICROWAVE RADIATION; QUALITY FACTOR; RESONATORS; SENSITIVITY; SHIELDS; SPECTROMETERS; TUNING