Photodynamics of quantum emitters in hexagonal boron nitride revealed by low temperature spectroscopy

Abstract

Quantum emitters in hexagonal boron nitride (hBN) have recently emerged as promising bright single photon sources. In this letter we investigate in details their optical properties at cryogenic temperatures. In particular, we perform temperature resolved photoluminescence studies and measure photon coherence times from the hBN emitters. The obtained value of 81(1) ps translates to a width of $\sim$12 GHz which is higher than the Fourier transform limited value of $\sim$32 MHz. To account for the photodynamics of the emitter, we perform ultrafast spectral diffusion measurements that partially account for the coherence times. Our results provide important insight into the relaxation processes in quantum emitters in hBN which is mandatory to evaluate their applicability for quantum information processing.

5 pages, 4 figures

References in corpus (8)

• The Quantum Internet
• Quantum Computing
• Single-Photon Switching and Entanglement of Solid-State Qubits in an Integrated Nanophotonic System
• Structural attributes and photo-dynamics of visible spectrum quantum emitters in hexagonal boron nitride
• Low temperature investigations of single silicon vacancy colour centres in diamond
• Photophysics of single silicon vacancy centers in diamond: implications for single photon emission
• Ultrafast spectral diffusion measurement on nitrogen vacancy centers in nanodiamonds using correlation interferometry
• Coherent control of a strongly driven silicon vacancy optical transition in diamond

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