ORCID Profile
0000-0001-9850-4992
Current Organisation
Macquarie University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Quantum Optics | Quantum Information, Computation and Communication | Quantum Physics | Electronic and Magnetic Properties of Condensed Matter; Superconductivity | Communications Technologies | Functional Materials | Optical Physics | Nanotechnology | Condensed Matter Physics | Fluidisation and Fluid Mechanics | Photonics, Optoelectronics and Optical Communications | Nanoscale Characterisation | Condensed Matter Modelling and Density Functional Theory | Nanobiotechnology | Quantum Physics not elsewhere classified | Microwave and Millimetrewave Theory and Technology | Nanoelectromechanical Systems | Particle Physics
ANZSRC Socio-Economic Objective (SEO)
Expanding Knowledge in the Physical Sciences | Expanding Knowledge in Technology | Expanding Knowledge in Engineering | Scientific Instruments | Emerging Defence Technologies | Expanding Knowledge in the Biological Sciences |
Related Links
Publications
Optically Tunable Spontaneous Raman Fluorescence from a Single Self-Assembled InGaAs Quantum Dot
Publisher: American Physical Society (APS)
Date: 21-08-2009
Photoluminescence from a quantum dot-cavity system
Publisher: Elsevier
Date: 2012
Nano-assembly of nanodiamonds by conjugation to actin filaments
Publisher: Wiley
Date: 22-08-2015
Abstract: Fluorescent nanodiamonds (NDs) are remarkable objects. They possess unique mechanical and optical properties combined with high surface areas and controllable surface reactivity. They are non-toxic and hence suited for use in biological environments. NDs are also readily available and commercially inexpensive. Here, the exceptional capability of controlling and tailoring their surface chemistry is demonstrated. Small, bright diamond nanocrystals (size ˜30 nm) are conjugated to protein filaments of actin (length ˜3-7 µm). The conjugation to actin filaments is extremely selective and highly target-specific. These unique features, together with the relative simplicity of the conjugation-targeting method, make functionalised nanodiamonds a powerful and versatile platform in biomedicine and quantum nanotechnologies. Applications ranging from using NDs as superior biological markers to, potentially, developing novel bottom-up approaches for the fabrication of hybrid quantum devices that would bridge across the bio/solid-state interface are presented and discussed.
Quantum-correlated photons from semiconductor fiber-cavity polaritons
Publisher: IEEE
Date: 06-2019
Towards Room-Temperature Laser Magnetometry with NV Centres in Open Fibre Cavities
Publisher: IEEE
Date: 06-2019
Strongly correlated photons on a chip
Publisher: Springer Science and Business Media LLC
Date: 18-12-2011
Non-invasive zero-delay time calibration of Hanbury-Brown and Twiss interferometers
Publisher: Elsevier BV
Date: 04-2019
Room-temperature spontaneous superradiance from single diamond nanocrystals
Publisher: Springer Science and Business Media LLC
Date: 31-10-2017
DOI: 10.1038/S41467-017-01397-4
Abstract: Superradiance (SR) is a cooperative phenomenon which occurs when an ensemble of quantum emitters couples collectively to a mode of the electromagnetic field as a single, massive dipole that radiates photons at an enhanced rate. Previous studies on solid-state systems either reported SR from sizeable crystals with at least one spatial dimension much larger than the wavelength of the light and/or only close to liquid-helium temperatures. Here, we report the observation of room-temperature superradiance from single, highly luminescent diamond nanocrystals with spatial dimensions much smaller than the wavelength of light, and each containing a large number (~ 10 3 ) of embedded nitrogen-vacancy (NV) centres. The results pave the way towards a systematic study of SR in a well-controlled, solid-state quantum system at room temperature.
Collisional relaxation of Feshbach molecules and three-body recombination inRb
Publisher:
American Physical Society (APS)
Date:
20-02-2007
Publisher: American Physical Society (APS)
Date: 20-02-2007
Ultrafast all-optical switching by single photons
Publisher: Springer Science and Business Media LLC
Date: 12-08-2012
All optical switching of a single photon stream by excitonic depletion
Publisher: Springer Science and Business Media LLC
Date: 31-01-2020
DOI: 10.1038/S42005-020-0292-8
Abstract: Single semiconductor quantum dots have been extensively used to demonstrate the deterministic emission of high purity single photons. The single photon emission performance of these nanostructures has become very well controlled, offering high levels of photon indistinguishability and brightness. Ultimately, quantum technologies will require the development of a set of devices to manipulate and control the state of the photons. Here we measure and simulate a novel all-optical route to switch the single photon stream emitted from the excitonic transition in a single semiconductor quantum dot. A dual non-resonant excitation pumping scheme is used to engineer a switching device operated with GHz speeds, high differential contrasts, ultra-low power consumption and high single photon purity. Our device scheme can be replicated in many different zero dimensional semiconductors, providing a novel route towards developing a platform-independent on-chip design for high speed and low power consumption quantum devices.
Absorptive laser threshold magnetometry: combining visible diamond Raman lasers and nitrogen-vacancy centres
Publisher: IOP Publishing
Date: 06-2021
Abstract: We propose a high-sensitivity magnetometry scheme based on a diamond Raman laser with visible pump absorption by an ensemble of coherently microwave driven negatively charged nitrogen-vacancy centres (NV − ) in the same diamond crystal. The NV − centres’ absorption and emission are spin-dependent. We show how the varying absorption of the NV − centres changes the Raman laser output. A shift in the diamond Raman laser threshold and output occurs with the external magnetic field and microwave driving. We develop a theoretical framework with steady-state solutions to describe the effects of coherently driven NV − centres including the charge state switching between NV − and its neutral charge state NV 0 in a diamond Raman laser. We discuss that such a laser working at the threshold can be employed for magnetic field sensing. In contrast to previous studies on NV − magnetometry with visible laser absorption, the laser threshold magnetometry method is expected to have low technical noise, due to low background light in the measurement signal. For magnetic-field sensing, we project a shot-noise limited DC sensitivity of a few pT / H z in a well-calibrated cavity with realistic parameters. This sensor employs the broad visible absorption of NV − centres and unlike previous laser threshold magnetometry proposals it does not rely on active NV − centre lasing or an infrared laser medium at the specific wavelength of the NV − centre’s infrared absorption line.
Quantum magnetic sensor using fibre-cavity diamond nitrogen-vacancy centre laser
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.P5_17
Abstract: We study the engineering of quantum magnetic sensor using laser generated from diamond nitrogen-vacancy (NV) centres in fibre cavity. The projected sensitivity of such a sensor is of the order of pT / Hz 1/2 .
Detecting gravitational waves with optically-levitated nanoparticles
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.P1_10
Abstract: We propose a small-scale spaceborne probe which uses laser-cooled optically-levitated nanoparticles to search for a variety of sources associated with high frequency cosmic events, through high-precision measurements and detection of gravitational waves at micron distances.
Preparation of a quantum state with one molecule at each site of an optical lattice
Publisher: Springer Science and Business Media LLC
Date: 24-09-2006
DOI: 10.1038/NPHYS415
Ultrafast Carrier Redistribution in Single InAs Quantum Dots Mediated by Wetting-Layer Dynamics
Publisher: American Physical Society (APS)
Date: 15-05-2019
Feshbach Resonances in Rubidium 87: Precision Measurement and Analysis
Publisher: American Physical Society (APS)
Date: 30-12-2002
Collisional decay of Rb87 Feshbach molecules at 1005.8 G
Publisher: American Physical Society (APS)
Date: 13-12-2006
Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity
Publisher: Walter de Gruyter GmbH
Date: 28-09-2020
Abstract: Laser threshold magnetometry using the negatively charged nitrogen-vacancy (NV − ) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV − centres. We observe lification of the transmission of a cavity-resonant seed laser at 721 nm when the cavity is pumped at 532 nm and attribute this to stimulated emission. Changes in the intensity of spontaneously emitted photons accompany the lification, and a qualitative model including stimulated emission and ionisation dynamics of the NV − centre captures the dynamics in the experiment very well. These results highlight important considerations in the realisation of an NV − laser in diamond.
Addressing a single spin in diamond with a macroscopic dielectric microwave cavity
Publisher: AIP Publishing
Date: 29-09-2014
DOI: 10.1063/1.4896858
Abstract: We present a technique for addressing single nitrogen-vacancy (NV) center spins in diamond over macroscopic distances using a tunable dielectric microwave cavity. We demonstrate optically detected magnetic resonance (ODMR) for a single negatively charged NV center (NV–) in a nanodiamond (ND) located directly under the macroscopic microwave cavity. By moving the cavity relative to the ND, we record the ODMR signal as a function of position, mapping out the distribution of the cavity magnetic field along one axis. In addition, we argue that our system could be used to determine the orientation of the NV– major axis in a straightforward manner.
Dissociation of ultracold molecules with Feshbach resonances
Publisher: American Physical Society (APS)
Date: 08-09-2004
Characterization of elastic scattering near a Feshbach resonance in [Formula Presented]
Publisher: American Physical Society (APS)
Date: 23-07-2003
Observation of Molecules Produced from a Bose-Einstein Condensate
Publisher: American Physical Society (APS)
Date: 16-01-2004
Characterization of optofluidic devices for the sorting of sub-micrometer particles
Publisher: Optica Publishing Group
Date: 06-01-2020
DOI: 10.1364/AO.59.000271
Abstract: In this work, we investigate methods of fabricating a device for the optical actuation of nanoparticles. To create the microfluidic channel, we pursued three fabrication methods: SU-8 to molded polydimethylsiloxane soft lithography, laser etching of glass, and deep reactive ion etching of fused silica. We measured the surface roughness of the etched sidewalls, and the laser power transmission through each device. We then measured the radiation pressure on 0.5-µm particles in the best-performing fabricated device (etched fused silica) and in a square glass capillary.
Modified coherence of quantum spins in a damped pure-dephasing model
Publisher: American Physical Society (APS)
Date: 21-03-2022
Ensemble-Induced Strong Light-Matter Coupling of a Single Quantum Emitter
Publisher: American Physical Society (APS)
Date: 20-03-2020
Searching for physics beyond Standard Model using optically cooled nanoparticles
Publisher: Optica Publishing Group
Date: 2020
Abstract: We propose to extend the search for new physics beyond Standard Model using optically trapped and laser cooled dielectric nanoparticles for the resonant detection of short-range forces and corrections to Newtonian gravity.
Explanation of Photon Correlations in the Far-Off-Resonance Optical Emission from a Quantum-Dot–Cavity System
Publisher: American Physical Society (APS)
Date: 12-11-2009
Feshbach blockade: Single-photon nonlinear optics using resonantly enhanced cavity polariton scattering from biexciton states
Publisher: IOP Publishing
Date: 05-2010
Geometric Pathway to Scalable Quantum Sensing
Publisher: American Physical Society (APS)
Date: 06-11-2020
Cavity quantum electrodynamics with charge-controlled quantum dots coupled to a fiber Fabry-Perot cavity
Publisher: IOP Publishing
Date: 04-04-2013
Dynamic percolation theory for particle diffusion in a polymer network
Publisher: AIP Publishing
Date: 17-06-2002
DOI: 10.1063/1.1481763
Abstract: Tracer-diffusion of small molecules through dense systems of chain polymers is studied within an athermal lattice model, where hard-core interactions are taken into account by means of the site exclusion principle. An approximate mapping of this problem onto dynamic percolation theory is proposed. This method is shown to yield quantitative results for the tracer correlation factor of the molecules as a function of density and chain length provided the non-Poisson character of temporal renewals in the disorder configurations is properly taken into account.
Polariton boxes in a tunable fiber cavity
Publisher: American Physical Society (APS)
Date: 28-01-2015
Observation of Feshbach resonances in 87 Rb
Publisher: IEEE
Date: 2003
Cooperatively-enhanced atomic dipole forces in optically trapped nanodiamonds containing NV centres, in liquid
Publisher: SPIE
Date: 09-12-2016
DOI: 10.1117/12.2242963
Rydberg exciton–polaritons in a Cu2O microcavity
Publisher: Springer Science and Business Media LLC
Date: 14-04-2022
DOI: 10.1038/S41563-022-01230-4
Abstract: Giant Rydberg excitons with principal quantum numbers as high as n = 25 have been observed in cuprous oxide (Cu
Cooperatively enhanced dipole forces from artificial atoms in trapped nanodiamonds
Publisher: Springer Science and Business Media LLC
Date: 14-11-2017
DOI: 10.1038/NPHYS3940
Atom-molecule rabi oscillations in a mott insulator
Publisher: American Physical Society (APS)
Date: 19-07-2007
Dissociation of ultracold molecules into atomic d waves
Publisher: IEEE
Date: 2005
Dissociation of Feshbach molecules into different partial waves
Publisher: American Physical Society (APS)
Date: 10-11-2005
Emergence of quantum correlations from interacting fibre-cavity polaritons
Publisher: Springer Science and Business Media LLC
Date: 18-02-2019
DOI: 10.1038/S41563-019-0281-Z
Abstract: Over the past decade, exciton-polaritons in semiconductor microcavities have revealed themselves as one of the richest realizations of a light-based quantum fluid
Stimulated emission from nitrogen-vacancy centres in diamond
Publisher: Springer Science and Business Media LLC
Date: 27-01-2017
DOI: 10.1038/NCOMMS14000
A Dissipative Tonks-Girardeau gas of molecules
Publisher: WORLD SCIENTIFIC
Date: 03-2009
Near-field levitated quantum optomechanics with nanodiamonds
Publisher: American Physical Society (APS)
Date: 24-08-2016
Bayesian estimation of switching rates for blinking emitters
Publisher: IOP Publishing
Date: 06-2019
Abstract: Single quantum light emitters are valuable resources for engineered quantum systems. They can function as robust single-photon generators, allow optical control of single spins, provide readout capabilities for atomic-scale sensors, and provide interfaces between stationary and flying qubits. Environmental factors can lead to single emitters exhibiting ‘blinking’, whereby the fluorescence level switches between on and off states. Detailed characterisation of this blinking behaviour including determining the switching rates is often a powerful way to gain understanding about the underlying physical mechanisms. While simple thresholds can be used to identify the on and off intervals and thus extract the rates from the time-series of counts for bright emitters with low background noise, such approaches become difficult for emitters fluorescing at low levels, high noise, or switching at fast rates. We develop a Bayesian approach capable of inferring switching rates directly from the time-series. This is able to deal with high levels of noise and fast switching in fluorescence traces. Moreover, the Bayesian inference also yields a robust picture of the parameter uncertainties, providing a benefit also for bright emitters in low-noise settings. The technique can be adapted to identify the underlying states as well as extracting the rates of switching. Finally, our method is applicable to a broad range of systems that show behaviour analogous to a blinking emitter.
Feshbach spectroscopy of a shape resonance
Publisher: American Physical Society (APS)
Date: 29-07-2005
Feshbach spectroscopy of a shape resonance
Publisher: IEEE
Date: 2005
Optical thermometry at the nanoscale using diamond
Publisher: OSA
Date: 2019
DOI: 10.1364/DP.2019.93
Monte Carlo model for the photoluminescence kinetics of a quantum dot embedded in a nanocavity
Publisher: IOP Publishing
Date: 11-2009
Nitrogen vacancy centres in diamond for laser threshold magnetometry
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2539583
Cooperative effects between color centers in diamond
Publisher: SPIE
Date: 25-08-2017
DOI: 10.1117/12.2276050
Strongly interacting photons in quantum dot cavity-QED
Publisher: IEEE
Date: 05-2011
Non-intrusive tunable resonant microwave cavity for optical detected magnetic resonance of NV centres in nanodiamonds
Publisher: SPIE
Date: 07-12-2013
DOI: 10.1117/12.2035861
Strong Dissipation Inhibits Losses and Induces Correlations in Cold Molecular Gases
Publisher: American Association for the Advancement of Science (AAAS)
Date: 06-06-2008
Abstract: Atomic quantum gases in the strong-correlation regime offer unique possibilities to explore a variety of many-body quantum phenomena. Reaching this regime has usually required both strong elastic and weak inelastic interactions because the latter produce losses. We show that strong inelastic collisions can actually inhibit particle losses and drive a system into a strongly correlated regime. Studying the dynamics of ultracold molecules in an optical lattice confined to one dimension, we show that the particle loss rate is reduced by a factor of 10. Adding a lattice along the one dimension increases the reduction to a factor of 2000. Our results open the possibility to observe exotic quantum many-body phenomena with systems that suffer from strong inelastic collisions.
Exciton-Exciton Interaction beyond the Hydrogenic Picture in a
MoSe
Publisher: American Physical Society (APS)
Date: 19-04-2021
Transport Properties in a Mott-like State of Molecules
Publisher: IEEE
Date: 06-2007
Related Organisations
Technical University Munich/Max-Planck Institute For Quantum Optics
Location: Germany
Related Funding Activities
Discovery Projects - Grant ID: DP170103010
Start Date: 06-2017
End Date: 06-2020
Amount: $405,000.00
Funder: Australian Research Council
View Funded ActivityLinkage Infrastructure, Equipment And Facilities - Grant ID: LE160100069
Start Date: 2016
End Date: 12-2017
Amount: $370,000.00
Funder: Australian Research Council
View Funded ActivityLinkage Infrastructure, Equipment And Facilities - Grant ID: LE200100032
Start Date: 2020
End Date: 12-2022
Amount: $600,000.00
Funder: Australian Research Council
View Funded ActivityLinkage Infrastructure, Equipment And Facilities - Grant ID: LE180100042
Start Date: 2018
End Date: 12-2018
Amount: $621,834.00
Funder: Australian Research Council
View Funded ActivityARC Centres Of Excellence - Grant ID: CE170100009
Start Date: 2018
End Date: 06-2025
Amount: $31,900,000.00
Funder: Australian Research Council
View Funded ActivityARC Centres Of Excellence - Grant ID: CE1101013
Start Date: 06-2011
End Date: 12-2017
Amount: $24,500,000.00
Funder: Australian Research Council
View Funded Activity