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Physics Seminar: Control of light-matter interaction in 2D materials
January 31, 2019 @ 12:00 pm - 1:00 pm
Presented by:
Prof. Vinod Menon
of
City College of CUNY
New York, NY
Two-dimensional (2D) Van der Waals materials have emerged as a very attractive class of optoelectronic material due to the unprecedented strength in its interaction with light. In this talk I will discuss approaches to enhance and control this interaction by integrating these 2D materials with microcavities, and metamaterials. I will first discuss the formation of strongly coupled half-light half-matter quasiparticles (microcavity polaritons) [1] and their spin-optic control [2] in the 2D transition metal dichacogenide (TMD) systems. Prospects of realizing condensation and few photon nonlinear switches using Rydberg states in TMDs will also be discussed. Following this, I will discuss the routing of valley excitons in 2D TMDs using chiral metasurfaces [3]. Finally, I will talk about room temperature single photon emission from hexagonal boron nitride [4] and the prospects of developing deterministic quantum emitters using them [5].
References
[1] X. Liu, et al., Nature Photonics 9, 30 (2015) [2] Z. Sun et al., Nature Photonics 11, 491 (2017) [3] S. Guddala et al., ArXiv 1811.00071 [4] Z. Shotan, et al., ACS Photonics 3, 2490 (2016) [5] N. Proscia, et al. Optica 5, 1128 (2018).
Light refreshments will be served.