Time-dependent Mandel Q parameter analysis for a hexagonal boron nitride single photon source

Abstract

The time-dependent Mandel Q parameter, Q(T), provides a measure of photon number variance for a light source as a function of integration time. Here, we use Q(T) to characterise single photon emission from a quantum emitter in hexagonal boron nitride (hBN). Under pulsed excitation a negative Q parameter was measured, indicating photon antibunching at an integration time of 100 ns. For larger integration times Q is positive and the photon statistics become super-Poissonian, and we show by comparison with a Monte Carlo simulation for a three-level emitter that this is consistent with the effect of a metastable shelving state. Looking towards technological applications for hBN single photon sources, we propose that Q(T) provides valuable information on the intensity stability of single photon emission. This is useful in addition to the commonly used $g^{(2)}(\tau )$ function for the complete characterisation of a hBN emitter.

arXiv commentMain text: 9 pages, 5 figures. Supplemental document: 6 pages, 8 figures. Submitted to Optics Express

References in corpus (13)

• Tunable and high purity room-temperature single photon emission from atomic defects in hexagonal boron nitride
• Efficient single photon emission from a high-purity hexagonal boron nitride crystal
• Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride
• Photonic Crystal Cavities from Hexagonal Boron Nitride
• Space-compatible cavity-enhanced single-photon generation with hexagonal boron nitride
• Direct Measurement of the Photon Statistics of a Triggered Single Photon Source
• What are single photons good for?
• Cavity-Enhanced 2D Material Quantum Emitters Deterministically Integrated with Silicon Nitride Microresonators
• Photon statistics characterization of a single photon source
• Tailoring the Emission Wavelength of Color Centers in Hexagonal Boron Nitride for Quantum Applications
• Probing the Optical Dynamics of Quantum Emitters in Hexagonal Boron Nitride
• Sensitive single-photon test of extended quantum theory with 2D hexagonal boron nitride
• Fast recognition of single molecules based on single event photon statistics

Cited by in corpus (5)

• Photon statistics analysis of h-BN quantum emitters with pulsed and continuous-wave excitation
• $SU(1,1)\times SU(2)$ approach and the Mandel parameter to the Hamiltonian of two oscillators with weak coupling
• A Generalization of the Parametric Amplifier with Dunkl Derivative: Spectral and Statistical Properties
• Evaluating Quantumness, Efficiency and Cost of Quantum Random Number Generators via Photon Statistics
• Open dynamics of entanglement in mesoscopic bosonic systems