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Title: Circularly polarized microwaves for magnetic resonance study in the GHz range: Application to nitrogen-vacancy in diamonds

The ability to create time-dependent magnetic fields of controlled polarization is essential for many experiments with magnetic resonance. We describe a microstrip circuit that allows us to generate strong magnetic field at microwave frequencies with arbitrary adjusted polarization. The circuit performance is demonstrated by applying it to an optically detected magnetic resonance and Rabi nutation experiments in nitrogen-vacancy color centers in diamond. Thanks to high efficiency of the proposed microstrip circuit and degree of circular polarization of 85%; it is possible to address the specific spin states of a diamond sample using a low power microwave generator. The circuit may be applied to a wide range of magnetic resonance experiments with a well-controlled polarization of microwaves.
Authors:
; ;  [1] ;  [2]
  1. Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow (Poland)
  2. Department of Electronics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow (Poland)
Publication Date:
OSTI Identifier:
22483162
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COLOR CENTERS; DIAMONDS; EFFICIENCY; GHZ RANGE; MAGNETIC FIELDS; MAGNETIC RESONANCE; MICROWAVE RADIATION; NITROGEN; PERFORMANCE; POLARIZATION; SPIN; TIME DEPENDENCE