Light-matter interaction is the foundation for numerous important quantum optical phenomena, which may be harnessed to build practical devices with higher efficiency and unprecedented functionality. Nanoscale engineering is seen as a fruitful avenue to significantly strengthen light-matter interaction and also make quantum optical systems ultra-compact, scalable, and energy efficient. This research focuses on color centers in diamond that share quantum properties with single atoms. These systems promise a path for the realization of practical quantum devices such as nanoscale sensors, single-photon sources, and quantum memories. In particular, we explored an intriguing methodology of utilizing nanophotonic structures, such as hyperbolic metamaterials, nanoantennae, and plasmonic waveguides, to improve the color centers performance. We observed enhancement in the color center’s spontaneous emission rate, emission directionality, and cooperativity over a broad optical frequency range. Additionally, we studied the effect of plasmonic environments on the spin-readout sensitivity of color centers. The use of CMOS-compatible epitaxially grown plasmonic materials in the design of these nanophotonic structures promises a new level of performance for a variety of integrated room-temperature quantum devices based on diamond color centers.
Mikhail Y. Shalaginov received his Applied Physics and Mathematics bachelor’s degree from the Department of General and Applied Physics, Moscow Institute of Physics and Technology (MIPT), Russia (2006–2010). He then pursued his Ph. D. under the mentorship of Prof. Vladimir Shalaev in the School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN (2011 – 2017).
Mikhail Shalaginov’s PhD research has primarily centered on color centers in diamond which exhibit quantum properties similar to those of single atoms. These systems promise to provide a path to practical quantum devices such as nanoscale sensors, single-photon sources, and quantum memories. He has been exploring the applications of novel nanophotonic structures, such as hyperbolic metamaterials/metasurfaces, nanoantennae, and plasmonic waveguides for building robust and efficient single-photon sources, as well as constructing quantum spin-registers with plasmonic readout. He, together with his colleagues, demonstrated, for the first time, the use of metamaterials for enhancing single-photon emission from nitrogen-vacancy color centers in diamond nanocrystals. Additionally, they pioneered the experimental study of the Purcell effect on the performance of electron spin readout in plasmonically enhanced diamond color center ensembles.
Dr. Shalaginov’s research interests include quantum optics, integrated photonics, nanophotonics, plasmonics, photonic materials and metamaterials. He is a member of MRS, IEEE, APS, and a co-founder of OSA Purdue Student Chapter, a founder of SPIE Purdue Student Chapter. He also served as a president of several Purdue student organizations, such as the ECE Graduate Student Association, OSA & SPIE Purdue Student Chapters, and Nanotechnology Student Advisory Council (NSAC). He was selected to serve as a Discovery Park Graduate Ambassador (2013-2017). Additionally, Mikhail is the recipient of the 2017 College of Engineering Outstanding Graduate Student Research Award.
Currently, Dr. Shalaginov is a postdoctoral associate in the Department of Materials Science and Engineering at the Massachusetts Institute of Technology.
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