paper

Optimized Planar Microwave Antenna for Nitrogen Vacancy Center based Sensing Applications

arXiv:2108.09122 · doi:10.3390/nano11082108

Abstract

Individual nitrogen vacancy (NV) color centers in diamond are versatile, spin-based quantum sensors. Coherently controlling the spin of NV centers using microwaves in a typical frequency range between 2.5 and 3.5 GHz is necessary for sensing applications. In this work, we present a stripline-based, planar, Ω-shaped microwave antenna that enables to reliably manipulate NV spins. We find an optimal antenna design using finite integral simulations. We fabricate our antennas on low-cost, transparent glass substrate. We demonstrate highly uniform microwave fields in areas of roughly 400 x 400 μm^2 while realizing high Rabi frequencies of up to 10 MHz in an ensemble of NV centers.

References in corpus (15)

Optimized Planar Microwave Antenna for Nitrogen Vacancy Center based Sensing Applications · wovepaper