Broadband, large-area microwave antenna for optically detected magnetic resonance of nitrogen-vacancy centers in diamond

Kento Sasaki; Yasuaki Monnai; Soya Saijo; Ryushiro Fujita; Hideyuki Watanabe; Junko Ishi-Hayase; Kohei M Itoh; Eisuke Abe

doi:10.1063/1.4952418

Broadband, large-area microwave antenna for optically detected magnetic resonance of nitrogen-vacancy centers in diamond

Rev Sci Instrum. 2016 May;87(5):053904. doi: 10.1063/1.4952418.

Authors

Kento Sasaki¹, Yasuaki Monnai¹, Soya Saijo¹, Ryushiro Fujita¹, Hideyuki Watanabe², Junko Ishi-Hayase¹, Kohei M Itoh¹, Eisuke Abe¹

Affiliations

¹ School of Fundamental Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
² Correlated Electronics Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565, Japan.

PMID: 27250439
DOI: 10.1063/1.4952418

Abstract

We report on a microwave planar ring antenna specifically designed for optically detected magnetic resonance (ODMR) of nitrogen-vacancy (NV) centers in diamond. It has the resonance frequency at around 2.87 GHz with the bandwidth of 400 MHz, ensuring that ODMR can be observed under external magnetic fields up to 100 G without the need of adjustment of the resonance frequency. It is also spatially uniform within the 1-mm-diameter center hole, enabling the magnetic-field imaging in the wide spatial range. These features facilitate the experiments on quantum sensing and imaging using NV centers at room temperature.

Publication types

Research Support, Non-U.S. Gov't