Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session Q21: Confined Excitons
3:00 PM–5:48 PM,
Wednesday, March 8, 2023
Room: Room 213
Sponsoring
Unit:
DCMP
Chair: Daniel Rizzo, Columbia University
Abstract: Q21.00010 : Creating lateral quantum wells in monolayer semiconductors by an electrostatic confinement mechanism
4:48 PM–5:00 PM
Presenter:
Jenny Hu
(Stanford University)
Authors:
Jenny Hu
(Stanford University)
Etienne LORCHAT
(NTT research Inc)
Xueqi Chen
(Stanford University)
Elie Vandoolaeghe
(NTT research Inc)
Puneet A Murthy
(NTT research Inc)
Tony F Heinz
(Stanford University)
Thibault Chervy
(NTT Research Inc)
Here we employ this confinement mechanism to study the interaction between excitons confined by the edges of two parallel, closely spaced electrostatic gates. We demonstrate the independent tunability of two sets of 1D confined states using optical absorption and emission spectroscopy. We further show that a single quantum well for excitons can be formed a result of the two edges for an appropriate geometry. These results advance our capabilities for the manipulation and hybridization of confined excitons, as well as for the creation of large, degenerate quantum emitter arrays.
[1] Thureja, D., Imamoglu, A., Smolenski, T. et al. Electrically tunable quantum confinement of neutral excitons. Nature 606, 298–304 (2022).
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