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May 26 – 31, 2024
Western University
America/Toronto timezone
Welcome to the 2024 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2024!

Quantum Sensing with Diamond Defects

May 30, 2024, 2:15 PM
30m
PAB Rm 106 (cap. 96) (Physics & Astronomy Bldg., Western U.)

PAB Rm 106 (cap. 96)

Physics & Astronomy Bldg., Western U.

Invited Speaker / Conférencier(ère) invité(e) Division for Quantum Information / Division de l'information quantique (DQI / DIQ) (DQI) R2-1 Quantum Sensing | Détection quantique (DIQ)

Speaker

Dr Erika Janitz (University of Calgary)

Description

The electronic spins of single atomic defects in diamond can serve as magnetic sensors with exceptional sensitivity and nanoscale spatial resolution. So far, the nitrogen-vacancy (NV) center has been used for sensing external targets, partly due to its exceptional spin coherence under various experimental (including ambient) conditions. In this talk, I will discuss my postdoctoral work (Degen group; ETH Zurich) in creating an NV-NMR platform for molecular sensing. Our team developed fabrication and surface treatments for improving sensitivity while enabling highly generalizable molecular surface functionalization [1]. These techniques were subsequently used to detect conformational changes in few-molecule DNA samples. In parallel, we developed optimized diamond nanopillar structures for improving NV fluorescence collection, yielding a factor-of-three measurement speed-up [2]. I will conclude by outlining plans for my new lab to improve magnetic sensitivity further, enabling single-nuclear-spin detection within functionalized molecules and opening the door for structure elucidation or reaction monitoring on the single-molecule level.

[1] Abendroth et al., Nano Letters 22, (2022).
[2] Zhu et al., Nano Letters 23, (2023).

Keyword-1 quantum sensing
Keyword-2 quantum hardware

Primary author

Dr Erika Janitz (University of Calgary)

Presentation materials

There are no materials yet.