Presentation Information

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-C310-12]Observation of spectral asymmetry in diamond NV-center ODMR via coupling to high-Q microstrip line-dielectric resonator coupled system

〇(M1)Mohamadoshara Sato¹, Kazuma Hanawa¹, Yusuke Azuma¹, Hideyuki Watanabe², Satoshi Kashiwaya³, Shintaro Nomura¹ (1.Tsukuba Univ., 2.AIST, 3.Nagoya Univ)

Keywords:

diamond NV center

This study aims to improve the sensitivity of quantum sensing using diamond NV centers by evaluating a high-Q microwave resonator system consisting of a microstrip line coupled to a dielectric resonator. S-parameter and ODMR measurements were performed at Q = 3205, and spectral asymmetry and systematic line-shape changes were observed near the resonance frequency. These changes are attributed to the reduced bandwidth of the high-Q resonator, which causes the microwave magnetic field intensity to vary sharply with small frequency differences.

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