2019/02/10 by Toan Trong Tran, Tran, Toan Trong, Carlo Bradac +7 · 1 citation
Computer Science · Engineering · Materials Science · #Diamond and Carbon-based Materials Research #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Optics (physics.optics) #Plasmonic and Surface Plasmon Research #Quantum Information and Cryptography
paper · pdf · doi:10.48550/arxiv.1902.03711
openalex publication_date 2019/02/10 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28
Solid-state quantum emitters are garnering a lot of attention due to their\nrole in scalable quantum photonics. A notable majority of these emitters,\nhowever, exhibit spectral diffusion due to local, fluctuating electromagnetic\nfields. In this work, we demonstrate efficient Anti-Stokes (AS) excitation of\nquantum emitters in hexagonal boron nitride (hBN), and show that the process\nresults in the suppression of a specific mechanism responsible for spectral\ndiffusion of the emitters. We also demonstrate an all-optical gating scheme\nthat exploits Stokes and Anti-Stokes excitation to manipulate spectral\ndiffusion so as to switch and lock the emission energy of the photon source. In\nthis scheme, reversible spectral jumps are deliberately enabled by pumping the\nemitter with high energy (Stokes) excitation; AS excitation is then used to\nlock the system into a fixed state characterized by a fixed emission energy.\nOur results provide important insights into the photophysical properties of\nquantum emitters in hBN, and introduce a new strategy for controlling the\nemission wavelength of quantum emitters.\n