Prof. Igor Aharonovich Profile

Prof. Igor Aharonovich

Professor at Univ of Technology Sydney

SPIE Involvement:

Conference Program Committee | Conference Chair | Editor | Author

Publications (23)

Proceedings Article | 14 March 2023 Presentation + Paper

Presentation + Paper

Hexagonal boron nitride: a source for quantum photonics applications

Simon J. White, Tieshan Yang, Nikolai Dontschuk, Connor Stewart, Chi Li, Zai-Quan Xu, Alexander Solntstev, Mehran Kianinia, Alastair Stacey, Milos Toth, Igor Aharonovich

Proceedings Volume 12441, 124410B (2023) https://doi.org/10.1117/12.2654870

KEYWORDS: Quantum emitters, Boron nitride, Quantum photonics, Quantum technologies, Modulation, Quantum systems, Quantum sources, Photonic crystals, Quantum interference, Quantum control

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SPIE Journal Paper | 23 January 2023 Open Access

Open Access

Quantum dots light up ahead

Igor Aharonovich

PI, Vol. 1, Issue 02, C04, (January 2023) https://doi.org/10.1117/12.10.3788/PI.2022.C04

KEYWORDS: Quantum light, Quantum communications, Quantum dots, Quantum devices, Photonic nanostructures, Semiconductor quantum dots, Quantum technologies, Quantum spin, Quantum photonics, Quantum fields

Proceedings Article | 4 October 2022 Presentation

Presentation

Room-temperature strong coupling of a single-photon emitter and a bound-state-in-the-continuum cavity (Conference Presentation)

Thu Ha Do, Milad Nonahal, Chi Li, Vytautas Valuckas, Arseniy Kuznetsov, Hai Son Nguyen, Igor Aharonovich, Son Tung Ha

Proceedings Volume PC12206, PC1220609 (2022) https://doi.org/10.1117/12.2635148

KEYWORDS: Photonic crystals, Semiconductors, Plasmonics, Molecules, Molecular photonics, Photons, Surface plasmons, Quantum electrodynamics, Optical resonators, Cryogenics

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Cavity quantum electrodynamics describes coupled systems comprising of optically active emitters with atom-like transitions, such as single-photon emitters (SPEs), and optical cavities that underlies various fundamental quantum properties. In the strong coupling regime, SPEs and cavity photons coherently exchange energy leading to two new hybrid states that significantly modify the optical responses of the originally uncoupled or weakly coupled states. As a result, various intriguing effects could be realized such as Rabi oscillations, nonlinearities, photon blockade when the system is in strong coupling conditions. To achieve strong coupling between SPEs and photonic cavities, SPE transition energies have to coincide with cavity resonances (spectral overlapping), SPEs are precisely positioned at the electric field antinodes (spatial overlapping) and SPE emission decay is slower than coupling strength (narrow linewidth). Such stringent conditions impose serious challenges for experimental realization of SPE-cavity strong coupling particularly at room temperature due to the lack of stable single-photon sources with high color purity at high temperatures and controllability on positioning SPE in cavity. Strong coupling has been reported for single semiconducting quantum-dots and photonic crystal cavities at cryogenic temperature1,2 and for single molecules and plasmonics cavities at room temperature.3 Here, we introduce a new approach using point-defects purposely created in a two-dimensional few-layer-thick hexagonal boron nitride (hBN) film as single-photon emitters and a robust photonic cavity with arbitrarily high quality-factor based on bound-state-in-the-continuum (BIC) concept.4 We observe, at room temperature and in ambient conditions, strong coupling between SPEs and BIC photons characterized by a Rabi splitting of ∼7 meV. The coupling strength can be tuned by varying detuning energy that is strongly supported by theoretical calculation. Our findings unveil new opportunities for exploiting the BIC cavity to realize the long-sought strong coupling with SPEs, ultimately for the development of quantum-based devices operating at ambient conditions. 1Reithmaier, J. P. et al. Nature 432, 197-200 (2004) 2Yoshie, T. et al. Nature 432, 200-203 (2004) 3Chikkaraddy, R. et al. Nature 535, 127-130 (2016) 4Do, T. T. H. et al., manuscript in preparation (2022)

Proceedings Article | 5 March 2022 Presentation

Presentation

Optically-addressable spins in hexagonal boron nitride at room temperature

Hannah Stern, John Jarman, Qiushi Gu, Simone Eizagirre Barker, Noah Mendelson, Dipankar Chugh, Sam Schott, Hoe Tan, Henning Sirringhaus, Igor Aharonovich, Mete Atature

Proceedings Volume PC12003, PC1200301 (2022) https://doi.org/10.1117/12.2608222

KEYWORDS: Boron, Chemical vapor deposition, Singular optics, Silicon carbide, Quantum optics, Quantum memory, Plasma treatment, Optical resonators, Nanofabrication, Magnetism

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Proceedings Article | 20 August 2020 Presentation

Presentation

Quantum emitters in hexagonal boron nitride

Noah Mendelson, Igor Aharonovich, Milos Toth

Proceedings Volume 11471, 1147106 (2020) https://doi.org/10.1117/12.2567599

KEYWORDS: Boron, Single photon, Chemical vapor deposition, Quantum efficiency, Heterojunctions, Nanophotonics, Nanolithography, Fabrication, Crystals, Thermography

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Proceedings Article | 20 August 2020 Presentation

Presentation

Photonic nanobeam cavities with nano-pockets for efficient integration of fluorescent nanoparticles

Johannes Fröch, Sejeong Kim, Milos Toth, Igor Aharonovich

Proceedings Volume 11471, 114710G (2020) https://doi.org/10.1117/12.2569034

KEYWORDS: Nanoparticles, Photonic nanostructures, Particles, Dielectrics, Upconversion, Quantum dots, Resonators, Electron beam lithography, Reactive ion etching, Luminescence

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Proceedings Article | 31 December 2019 Paper

Paper

Second harmonic generation from multilayer hexagonal boron nitride

Sejeong Kim, Johannes Fröch, Augustine Gardner, Chi Li, Igor Aharonovich, Alexander Solntsev

Proceedings Volume 11201, 112010J (2019) https://doi.org/10.1117/12.2537222

KEYWORDS: Second-harmonic generation, Harmonic generation, Nonlinear optics, Microscopy, Spectroscopy, Atomic force microscopy

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Proceedings Article | 30 December 2019 Paper

Paper

Quantum random number generation using a solid state single photon source

Simon J. White, Friederike Klauck, Nora Schmitt, Toan Trong Tran, Mehran Kianinia, Andrea Steinfurth, Igor Aharonovich, Alexander Szameit, Alexander Solntsev

Proceedings Volume 11200, 112001D (2019) https://doi.org/10.1117/12.2541286

KEYWORDS: Single photon, Photons, Solid state electronics, Boron, Superposition, Quantum information, Solid state physics, Physical sciences

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Proceedings Article | 30 December 2019 Paper

Paper

Tomography of quantum dots in a non-hermitian photonic chip

Simon J. White, Kai Wang, Toan Trong Tran, Mehran Kianinia, James Titchener, Markus Gräfe, Sarah Fischbach, Sven Rodt, Jin Dong Song, Stephan Reitzenstein, Igor Aharonovich, Andrey Sukhorukov, Alexander Szameit, Alexander Solntsev

Proceedings Volume 11200, 112001Z (2019) https://doi.org/10.1117/12.2541236

KEYWORDS: Quantum dots, Tomography, Quantum communications, Quantum computing, Quantum information, Optical tomography, Quantum physics, Communication engineering

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SPIE Journal Paper | 26 December 2019 Open Access

Open Access

Photodynamics and quantum efficiency of germanium vacancy color centers in diamond

Minh Nguyen, Niko Nikolay, Carlo Bradac, Mehran Kianinia, Evgeny Ekimov, Noah Mendelson, Oliver Benson, Igor Aharonovich

AP, Vol. 1, Issue 06, 066002, (December 2019) https://doi.org/10.1117/12.10.1117/1.AP.1.6.066002

KEYWORDS: Neodymium, Quantum efficiency, Color centers, Diamond, Polymethylmethacrylate, Germanium, Photonics, Dielectrics, Glasses, Interfaces

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Proceedings Article | 10 September 2019 Presentation

Presentation

Nanophotonics with hexagonal boron nitride (Conference Presentation)

Igor Aharonovich, Sejeong Kim

Proceedings Volume 11091, 110910C (2019) https://doi.org/10.1117/12.2526513

KEYWORDS: Nanophotonics, Boron, Solid state physics, Photonic integrated circuits, Integrated circuit design, Integrated circuits, Diamond, Silicon carbide, Zinc oxide, Plasmonics

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Proceedings Article | 4 March 2019 Presentation

Presentation

Nanophotonic integration of hexagonal boron nitride (Conference Presentation)

Minh Nguyen, Sejeong Kim, Toan Trong Tran, Mehran Kianinia, Zai-Quan Xu, Danqing Wang, Ankun Yang, Igor Aharonovich, Milos Toth, Teri Odom

Proceedings Volume 10920, 1092006 (2019) https://doi.org/10.1117/12.2508469

KEYWORDS: Nanophotonics, Boron, Plasmonics, Gold, Luminescence, Single photon, Light-matter interactions, Quantum efficiency, Atomic force microscope, Atomic force microscopy

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Proceedings Article | 4 March 2019 Presentation

Presentation

Nanophotonics with hexagonal boron nitride (Conference Presentation)

Igor Aharonovich

Proceedings Volume 10920, 1092002 (2019) https://doi.org/10.1117/12.2508457

KEYWORDS: Nanophotonics, Boron, Solid state electronics, Photonic crystals, Quantum information, Quantum information processing, Diamond, Silicon carbide, Zinc oxide, Nanotechnology

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Proceedings Article | 29 May 2018 Presentation

Presentation

Single photon extraction from defects in hBN using a tapered fiber (Conference Presentation)

Andreas Schell, Toan Trong Tran, Hideaki Takashima, Igor Aharonovich, Shigeki Takeuchi

Proceedings Volume 10674, 106740K (2018) https://doi.org/10.1117/12.2307460

KEYWORDS: Single photon, Photonics, Quantum efficiency, Quantum optics, Photons, Singular optics, Sensors, Boron, Tapered optical fibers, Nanomanipulation

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Proceedings Article | 23 May 2018 Presentation

Presentation

Investigation of the optical properties of single emitters in hBN (Conference Presentation)

Andreas Schell, Mikael Svendahl, Toan Trong Tran, Igor Aharonovich, Hideaki Takashima, Shigeki Takeuchi, Romain Quidant

Proceedings Volume 10672, 106721G (2018) https://doi.org/10.1117/12.2307402

KEYWORDS: Optical properties, Single photon, Photonics, Boron, Pulsed laser operation, Nonlinear optics, Biosensors, Quantum efficiency

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Proceedings Article | 8 May 2018 Presentation + Paper

Presentation + Paper

Quantum emitters in 2D materials

Alexander Solntsev, Igor Aharonovich, Milos Toth

Proceedings Volume 10639, 1063903 (2018) https://doi.org/10.1117/12.2303613

KEYWORDS: Quantum optics, Quantum communications, Solid state electronics, Cryogenics, Diamond, Crystals, Crystallography, Dielectrics, Photonic integrated circuits, Data processing

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Proceedings Article | 28 April 2017 Presentation

Presentation

Efficient extraction of photons from a single defect in hBN using a nanofiber (Conference Presentation)

Andreas Schell, Trong Toan Tran, Igor Aharonovich, Hideaki Takashima, Shigeki Takeuchi

Proceedings Volume 10111, 101112V (2017) https://doi.org/10.1117/12.2251879

KEYWORDS: Singular optics, Sensors, Tapered optical fibers, Single photon, Photons, Nanofibers, Boron, Quantum efficiency, Quantum optics, Photonics

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Proceedings Article | 19 April 2017 Presentation

Presentation

Nonlinear excitation of single quantum emitters in hexagonal boron nitride (Conference Presentation)

Andreas Schell, Trong Toan Tran, Igor Aharonovich, Hideaki Takashima, Shigeki Takeuchi

Proceedings Volume 10102, 1010214 (2017) https://doi.org/10.1117/12.2251262

KEYWORDS: Nonlinear optics, Current controlled current source, Boron, Quantum optics, Luminescence, Nanophotonics, Image resolution, Optical imaging, Ultrafast phenomena

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Proceedings Article | 9 December 2016 Paper

Paper

Ultra-bright emission from hexagonal boron nitride defects as a new platform for bio-imaging and bio-labelling

Christopher Elbadawi, Trong Toan Tran, Olga Shimoni, Daniel Totonjian, Charlene Lobo, Gabriele Grosso, Hyowan Moon, Dirk Englund, Michael Ford, Igor Aharonovich, Milos Toth

Proceedings Volume 10013, 1001314 (2016) https://doi.org/10.1117/12.2242988

KEYWORDS: Boron, Single photon, Visible radiation, Near infrared, Annealing, Electron beams, Luminescence, Argon, Biosensing, Confocal microscopy

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Proceedings Article | 6 March 2014 Paper

Paper

Gas-mediated charged particle beam processing of nanostructured materials

C. Lobo, A. Martin, C. Elbadawi, J. Bishop, I. Aharonovich, M. Toth

Proceedings Volume 8970, 89700O (2014) https://doi.org/10.1117/12.2042021

KEYWORDS: Electron beams, Platinum, Diamond, Nanostructures, Nanolithography, Chemisorption, Etching, Dry etching, Annealing, Oxygen

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Proceedings Article | 7 December 2013 Paper

Paper

Fluorescent emission in different silicon carbide polytypes

S. Castelletto, B. Johnson, I. Aharonovich, A. Parker

Proceedings Volume 8923, 89230B (2013) https://doi.org/10.1117/12.2033265

KEYWORDS: Silicon carbide, Nanoparticles, Single photon, Luminescence, Quantum dots, Confocal microscopy, Near infrared, Polarization, Silicon, Nanostructures

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Proceedings Article | 30 August 2010 Paper

Paper

Impurities in diamond: a new revival for quantum optics

S. Castelletto, I. Aharonovich, C. H. Su, S. Prawer

Proceedings Volume 7815, 78150C (2010) https://doi.org/10.1117/12.865609

KEYWORDS: Chromium, Diamond, Quantum key distribution, Single photon, Quantum efficiency, Neodymium, Crystals, Luminescence, Quantum optics, Color centers

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Proceedings Article | 3 February 2009 Paper

Paper

Photonic structures for QIP in diamond

K.-M. C. Fu, C. Santori, P. E. Barclay, N. Meyer, A. M. Holm, I. Aharonovich, S. Prawer, R. G. Beausoleil

Proceedings Volume 7225, 72250E (2009) https://doi.org/10.1117/12.813788

KEYWORDS: Waveguides, Diamond, Etching, Quantum computing, Semiconducting wafers, Raman spectroscopy, Quantum optics, Phonons, Dry etching, Objectives

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Showing 5 of 23 publications

Proceedings Volume Editor (2)

SPIE Conference Volume | 6 October 2023

Quantum Nanophotonic Materials, Devices, and Systems 2023

SPIE Conference Volume | 9 November 2022

Quantum Nanophotonic Materials, Devices, and Systems 2022

Conference Committee Involvement (15)

2D Photonic Materials and Devices VIII

25 January 2025 | San Francisco, California, United States

Quantum Nanophotonic Materials, Devices, and Systems 2024

20 August 2024 | San Diego, California, United States

2D Photonic Materials and Devices VII

30 January 2024 | San Francisco, California, United States

Quantum Nanophotonic Materials, Devices, and Systems 2023

23 August 2023 | San Diego, California, United States

2D Photonic Materials and Devices VI

31 January 2023 | San Francisco, California, United States

Showing 5 of 15 Conference Committees

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