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DYNAMIC MAGNETIC FIELD MICROSCOPY WITH COLOR DEFECTS IN DIAMOND
Saha, Kasturi - IIT Bombay
Presentation on Monday, March 27, 2023, noon
Location: MIT CUA Room
Color centers in diamond have proven to be promising candidates for not only quantum computing but also for quantum sensing. Amongst the various color defects, nitrogen-vacancy centers (NV centers) could provide a platform for precision magnetometry allowing for nanoscale magnetic imaging with applications in brain imaging, magnetotatic bacteria, quantum materials, geomagnetic fields, and many others. In this talk I will give an overview of our research towards the development of a novel scheme for optically detected magnetometry that allows for the development of low-cost magnetometers especially for teaching labs. Further I will elaborate on the on-going work related to the development of a magnetic field microscope. While NV centers are routinely used for measuring static magnetic fields in a wide field of view with diffraction limited spatial resolution, dynamic widefield magnetometry has been very challenging. I will describe the first demonstration of dynamic widefield magnetometry using Nitrogen vacancy centers in diamond and its applications.