Pankaj Jha1
Syracuse University1
Novel materials are the backbone of any technology. In this talk, I will discuss 2D materials that can be exfoliated down to a monolayer as well as grown layer by layer, with applications ranging from the generation of quantum light to the detection of single photons at visible and near-infrared wavelengths. In the first part of the talk, atomic defects (also known as color centers) in boron nitride as a promising candidate for single photon sources at room temperature will be discussed [1,2]. Experimental results ranging from the nanometric localization of hBN color centers [3] and sub-poissonian photon distribution to observing near-transformed limited lines will be presented [4]. I will conclude by sharing our near-term and long-term vision for hBN color centers interfaced with other 2D semi- and superconductors for sensing and photon detection applications.<br/><br/>References:<br/>[1] A. D. Franklin, in Point Defects in Solids, J. H. Crawford, L. M. Slifkin, Eds. (Plenum Press, New York, 1972), vol. 1, chap. 1.)<br/>[1] T. T. Tran, K. Bray, M. J. Ford, M. Toth, I. Aharonovich, Quantum Emission from Hexagonal Boron Nitride Monolayers. Nat. Nanotechnol. 11, 37-41 (2016)<br/>[3] P. K. Jha, H. Akbari, Y. Kim, S. Biswas, and H. A. Atwater, Nanoscale Axial Position and Orientation Measurement of Hexagonal Boron Nitride Quantum Emitters Using a Tunable Nanophotonic Environment, Nanotechnology 33, (2022)<br/>[4] H. Akbari, S. Biswas, P. K. Jha, J. Wong, B. Vest, and H. A. Atwater, Lifetime-Limited and Tunable Quantum Light Emission in h-BN via Electric Field Modulation, Nano Lett. 22, 7798 (2022).