ORCID Profile
0000-0002-2885-875X
Current Organisations
Macquarie University
,
Monash University
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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.
Photonics, Optoelectronics and Optical Communications | Nanophotonics | Nanotechnology | Classical and Physical Optics | Nanofabrication, Growth and Self Assembly
Expanding Knowledge in the Physical Sciences | Industrial Instruments | Scientific Instruments | Communication Networks and Services not elsewhere classified | Expanding Knowledge in Technology |
Publisher: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
Date: 2021
Publisher: Springer Science and Business Media LLC
Date: 26-01-2022
Publisher: American Chemical Society (ACS)
Date: 12-04-2021
Publisher: Springer Science and Business Media LLC
Date: 21-09-2020
Publisher: Optica Publishing Group
Date: 2021
DOI: 10.1364/CLEO_QELS.2021.FTU4F.5
Abstract: We experimentally demonstrate a new platform for enhanced light-matter interaction and sensing based on radial bound states in the continuum, which are supported in rings of symmetry-broken dielectric resonators with an ultracompact footprint.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 02-10-2015
Abstract: The nanoscale structures inspired by the natural catenaries can achromatically spin light wave.
Publisher: American Chemical Society (ACS)
Date: 17-08-2022
Publisher: SPIE
Date: 05-03-2022
DOI: 10.1117/12.2605595
Publisher: Springer Science and Business Media LLC
Date: 19-07-2019
DOI: 10.1038/S41467-019-11030-1
Abstract: Allowing subwavelength-scale-digitization of optical wavefronts to achieve complete control of light at interfaces, metasurfaces are particularly suited for the realization of planar phase-holograms that promise new applications in high-capacity information technologies. Similarly, the use of orbital angular momentum of light as a new degree of freedom for information processing can further improve the bandwidth of optical communications. However, due to the lack of orbital angular momentum selectivity in the design of conventional holograms, their utilization as an information carrier for holography has never been implemented. Here we demonstrate metasurface orbital angular momentum holography by utilizing strong orbital angular momentum selectivity offered by meta-holograms consisting of GaN nanopillars with discrete spatial frequency distributions. The reported orbital angular momentum-multiplexing allows lensless reconstruction of a range of distinctive orbital angular momentum-dependent holographic images. The results pave the way to the realization of ultrahigh-capacity holographic devices harnessing the previously inaccessible orbital angular momentum multiplexing.
Publisher: The Optical Society
Date: 13-10-2014
DOI: 10.1364/OL.39.005961
Publisher: Springer Science and Business Media LLC
Date: 20-08-2021
DOI: 10.1038/S41377-021-00491-Z
Abstract: Strong focusing on diffraction-limited spots is essential for many photonic applications and is particularly relevant for optical trapping however, all currently used approaches fail to simultaneously provide flexible transportation of light, straightforward implementation, compatibility with waveguide circuitry, and strong focusing. Here, we demonstrate the design and 3D nanoprinting of an ultrahigh numerical aperture meta-fibre for highly flexible optical trapping. Taking into account the peculiarities of the fibre environment, we implemented an ultrathin meta-lens on the facet of a modified single-mode optical fibre via direct laser writing, leading to a diffraction-limited focal spot with a record-high numerical aperture of up to NA ≈ 0.9. The unique capabilities of this flexible, cost-effective, bio- and fibre-circuitry-compatible meta-fibre device were demonstrated by optically trapping microbeads and bacteria for the first time with only one single-mode fibre in combination with diffractive optics. Our study highlights the relevance of the unexplored but exciting field of meta-fibre optics to a multitude of fields, such as bioanalytics, quantum technology and life sciences.
Publisher: The Optical Society
Date: 03-12-2014
DOI: 10.1364/OL.39.006771
Publisher: Optica Publishing Group
Date: 12-2021
DOI: 10.1364/AOP.414320
Abstract: Light has played a crucial role in the age of information technology and has facilitated the soaring development of information optics. The ever-increasing demand for high-capacity optical devices has prompted the use of physically orthogonal dimensions of light for optical multiplexing. Recent advances in nanotechnology, mainly stemming from functionalized nanomaterials and powerful nanofabrication tools, have propelled the fusion of optical multiplexing and nanophotonics (the study of light at nanoscale and of its interactions with nanostructures) by enabling ultrahigh-capacity information technology. This review aims to introduce the emerging concept of angular momentum (AM)-involved information optics and its implementation in nanophotonic devices. First, previous researches on the manipulation of spin angular momentum (SAM) and orbital angular momentum (OAM) by nanostructures will be reviewed. We then summarize the SAM multiplexing technology on the platform of metasurfaces. Particularly, we elaborately summarize our recent progress in the area of information optics, including OAM holography and on-chip AM multiplexing technology. Finally, a perspective in the combination of this emerging field with optical artificial intelligence (AI) will be given.
Publisher: Springer Science and Business Media LLC
Date: 07-08-2023
DOI: 10.1186/S43593-023-00052-4
Abstract: Structuring light emission from single-photon emitters (SPEs) in multiple degrees of freedom is of great importance for quantum information processing towards higher dimensions. However, traditional control of emission from quantum light sources relies on the use of multiple bulky optical elements or nanostructured resonators with limited functionalities, constraining the potential of multi-dimensional tailoring. Here we introduce the use of an ultrathin polarisation-beam-splitting metalens for the arbitrary structuring of quantum emission at room temperature. Owing to the complete and independent polarisation and phase control at the single meta-atom level, the designed metalens enables simultaneous mapping of quantum emission from ultra-bright defects in hexagonal boron nitride and imprinting of an arbitrary wavefront onto orthogonal polarisation states of the sources. The hybrid quantum metalens enables simultaneous manipulation of multiple degrees of freedom of a quantum light source, including directionality, polarisation, and orbital angular momentum. This could unleash the full potential of solid-state SPEs for their use as high-dimensional quantum sources for advanced quantum photonic applications.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 09-12-2022
Abstract: Plasmon resonances play a pivotal role in enhancing light-matter interactions in nanophotonics, but their low-quality factors have hindered applications demanding high spectral selectivity. Here, we demonstrate the design and 3D laser nanoprinting of plasmonic nanofin metasurfaces, which support symmetry-protected bound states in the continuum up to the fourth order. By breaking the nanofins’ out-of-plane symmetry in parameter space, we achieve high-quality factor (up to 180) modes under normal incidence. The out-of-plane symmetry breaking can be fine-tuned by the nanofins’ triangle angle, opening a pathway to precisely control the ratio of radiative to intrinsic losses. This enables access to the under-, critical, and over-coupled regimes, which we exploit for pixelated molecular sensing. We observe a strong dependence of the sensing performance on the coupling regime, demonstrating the importance of judicious tailoring of light-matter interactions. Our demonstration provides a metasurface platform for enhanced light-matter interaction with a wide range of applications.
Publisher: Springer Science and Business Media LLC
Date: 19-07-2022
DOI: 10.1038/S41467-022-31902-3
Abstract: Dispersion engineering is essential to the performance of most modern optical systems including fiber-optic devices. Even though the chromatic dispersion of a meter-scale single-mode fiber used for endoscopic applications is negligible, optical lenses located on the fiber end face for optical focusing and imaging suffer from strong chromatic aberration. Here we present the design and nanoprinting of a 3D achromatic diffractive metalens on the end face of a single-mode fiber, capable of performing achromatic and polarization-insensitive focusing across the entire near-infrared telecommunication wavelength band ranging from 1.25 to 1.65 µm. This represents the whole single-mode domain of commercially used fibers. The unlocked height degree of freedom in a 3D nanopillar meta-atom largely increases the upper bound of the time-bandwidth product of an achromatic metalens up to 21.34, leading to a wide group delay modulation range spanning from −8 to 14 fs. Furthermore, we demonstrate the use of our compact and flexible achromatic metafiber for fiber-optic confocal imaging, capable of creating in-focus sharp images under broadband light illumination. These results may unleash the full potential of fiber meta-optics for widespread applications including hyperspectral endoscopic imaging, femtosecond laser-assisted treatment, deep tissue imaging, wavelength-multiplexing fiber-optic communications, fiber sensing, and fiber lasers.
Publisher: MDPI AG
Date: 04-02-2021
Abstract: Topological insulators (TIs) have unique highly conducting symmetry-protected surface states while the bulk is insulating, making them attractive for various applications in condensed matter physics. Recently, topological insulator materials have been tentatively applied for both near- and far-field wavefront manipulation of electromagnetic waves, yielding superior plasmonic properties in the ultraviolet (UV)-to-visible wavelength range. However, previous reports have only demonstrated inefficient wavefront control based on binary metasurfaces that were digitalized on a TI thin film or non-directional surface plasmon polariton (SPP) excitation. Here, we numerically demonstrated the plasmonic capabilities of the TI Bi2Te3 as a material for gap–surface plasmon (GSP) metasurfaces. By employing the principle of the geometric phase, a far-field beam-steering metasurface was designed for the visible spectrum, yielding a cross-polarization efficiency of 34% at 500 nm while suppressing the co-polarization to 0.08%. Furthermore, a birefringent GSP metasurface design was studied and found to be capable of directionally exciting SPPs depending on the incident polarization. Our work forms the basis for accurately controlling the far- and near-field responses of TI-based GSP metasurfaces in the visible spectral range.
Publisher: IEEE
Date: 06-2019
Publisher: Springer Science and Business Media LLC
Date: 20-03-2020
Publisher: OSA
Date: 2014
Publisher: arXiv
Date: 2022
Publisher: IEEE
Date: 06-2017
Publisher: Springer Science and Business Media LLC
Date: 09-12-2019
Publisher: Springer Science and Business Media LLC
Date: 25-08-2022
DOI: 10.1038/S41467-022-32697-Z
Abstract: All-dielectric nanophotonics underpinned by the physics of bound states in the continuum (BICs) have demonstrated breakthrough applications in nanoscale light manipulation, frequency conversion and optical sensing. Leading BIC implementations range from isolated nanoantennas with localized electromagnetic fields to symmetry-protected metasurfaces with controllable resonance quality (Q) factors. However, they either require structured light illumination with complex beam-shaping optics or large, fabrication-intense arrays of polarization-sensitive unit cells, hindering tailored nanophotonic applications and on-chip integration. Here, we introduce radial quasi-bound states in the continuum (radial BICs) as a new class of radially distributed electromagnetic modes controlled by structural asymmetry in a ring of dielectric rod pair resonators. The radial BIC platform provides polarization-invariant and tunable high-Q resonances with strongly enhanced near fields in an ultracompact footprint as low as 2 µm 2 . We demonstrate radial BIC realizations in the visible for sensitive biomolecular detection and enhanced second-harmonic generation from monolayers of transition metal dichalcogenides, opening new perspectives for compact, spectrally selective, and polarization-invariant metadevices for multi-functional light-matter coupling, multiplexed sensing, and high-density on-chip photonics.
Publisher: American Chemical Society (ACS)
Date: 15-07-2021
Publisher: American Chemical Society (ACS)
Date: 29-03-2021
Publisher: Wiley
Date: 03-02-2023
Abstract: Twisted light, an unbounded set of helical spatial modes carrying orbital angular momentum (OAM), offers not only fundamental new insights into structured light–matter interactions, but also a new degree of freedom to boost optical and quantum information capacity. However, current OAM experiments still rely on bulky, expensive, and slow‐response diffractive or refractive optical elements, hindering today's OAM systems to be largely deployed. In the last decade, nanophotonics has transformed the photonic design and unveiled a erse range of compact and multifunctional nanophotonic devices harnessing the generation and detection of OAM modes. Recent metasurface devices developed for OAM generation in both real and momentum space, presenting design principle and exemplary devices, are summarized. Moreover, recent development of whispering‐gallery‐mode‐based passive and tunable microcavities, capable of extracting degenerate OAM modes for on‐chip vortex emission and lasing, is summarized. In addition, the design principle of different plasmonic devices and photodetectors recently developed for on‐chip OAM detection is discussed. Current challenges faced by the nanophotonic field for twisted‐light manipulation and future advances to meet these challenges are further discussed. It is believed that twisted‐light manipulation in nanophotonics will continue to make significant impact on future development of ultracompact, ultrahigh‐capacity, and ultrahigh‐speed OAM systems‐on‐a‐chip.
Publisher: Springer Science and Business Media LLC
Date: 13-01-2020
DOI: 10.1038/S41565-019-0611-Y
Abstract: Vertical cavity surface-emitting lasers (VCSELs) have made indispensable contributions to the development of modern optoelectronic technologies. However, arbitrary beam shaping of VCSELs within a compact system has remained inaccessible until now. The emerging ultra-thin flat optical structures, namely metasurfaces, offer a powerful technique to manipulate electromagnetic fields with subwavelength spatial resolution. Here, we show that the monolithic integration of dielectric metasurfaces with VCSELs enables remarkable arbitrary control of the laser beam profiles, including self-collimation, Bessel and Vortex lasers, with high efficiency. Such wafer-level integration of metasurface through VCSEL-compatible technology simplifies the assembling process and preserves the high performance of the VCSELs. We envision that our approach can be implemented in various wide-field applications, such as optical fibre communications, laser printing, smartphones, optical sensing, face recognition, directional displays and ultra-compact light detection and ranging (LiDAR).
Publisher: Wiley
Date: 20-06-2023
Abstract: Integrated quantum photonics (IQP) provides a path to practical, scalable quantum computation, communications and information processing. Realization of an IQP platform requires controlled engineering of many nanophotonic components. However, the range of materials for monolithic platforms is limited by the simultaneous need for high‐quality quantum light sources, high optical performance, and availability of scalable nanofabrication techniques. Here, the fabrication of IQP components from the recently emerged material hexagonal boron nitride (hBN), including tapered waveguides, microdisks, and 1D and 2D photonic crystal cavities, is demonstrated. Resonators with quality factors greater than 4000 are achieved, and proof‐of‐principle complex, free‐standing IQP circuitry fabricated from single‐crystal hBN is engineered. The results show the potential of hBN for scalable integrated quantum technologies.
Publisher: IOP Publishing
Date: 30-08-2023
Abstract: Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave. Even the interference of two plane waves, or of a single inhomogeneous (evanescent) wave, provides a number of nontrivial phenomena and additional functionalities as compared to a single plane wave. Complex wavefields with inhomogeneities in the litude, phase, and polarization, including topological––––– structures and singularities, underpin modern nanooptics and photonics, yet they are equally important, e.g. for quantum matter waves, acoustics, water waves, etc. Structured waves are crucial in optical and electron microscopy, wave propagation and scattering, imaging, communications, quantum optics, topological and non-Hermitian wave systems, quantum condensed-matter systems, optomechanics, plasmonics and metamaterials, optical and acoustic manipulation, and so forth. This Roadmap is written collectively by prominent researchers and aims to survey the role of structured waves in various areas of wave physics. Providing background, current research, and anticipating future developments, it will be of interest to a wide cross-disciplinary audience.
Publisher: Elsevier
Date: 2021
Publisher: Shanghai Institute of Optics and Fine Mechanics
Date: 2011
Publisher: American Association for the Advancement of Science (AAAS)
Date: 13-05-2016
Abstract: Information can be encoded using various properties of light. Optical multiplexing frequency, brightness, and polarization have played crucial roles in information technologies, high-capacity data storage, high-speed communications, and biological sensing. Angular momentum is another degree of freedom that could increase capacity further. Typically, however, the bulk optical elements used to determine the angular momentum of light limit possible on-chip processing. Ren et al. take a nanophotonics approach to measure and sort light co-propagating with different states of angular momentum (see the Perspective by Molina-Terriza). The approach is promising for on-chip multiplex processing of optical signals. Science , this issue p. 805 see also p. 774
Publisher: American Scientific Publishers
Date: 09-2016
Publisher: IEEE
Date: 07-2017
Publisher: American Chemical Society (ACS)
Date: 20-10-2022
Publisher: The Optical Society
Date: 13-03-2014
DOI: 10.1364/OL.39.001621
Publisher: SPIE-Intl Soc Optical Eng
Date: 13-06-2016
Publisher: American Association for the Advancement of Science (AAAS)
Date: 17-04-2020
Abstract: 3D vectorial holography reconstructs an arbitrary 3D vectorial field–carrying wavefront using machine learning inverse design.
Publisher: IOP Publishing
Date: 05-05-2022
Abstract: Polarisation holography generally demands polarisation-sensitive holograms for reconstructing either polarisation-multiplexed holographic images or polarisation-sensitive image channels. To date, polarisation holography is underpinned by the Jones matrix method that uses birefringent holograms, including ultrathin metasurface holograms, limiting the polarisation control to orthogonal polarisation states. Here I introduce a novel concept of vectorial wavefront holography by exploiting the wavefront shaping of a structured vector beam. I will show that a phase hologram can be used to tailor the polarisation interference of a vector beam in momentum space, creating arbitrary polarisation states that include but not limited to the linear, circular, azimuthal, and radial polarisations. This opens an unprecedented opportunity for the multiplexing generation of arbitrary polarisation distributions in a holographic image. The demonstrated vectorial wavefront holography offers flexible polarisation control without using birefringent optical materials, which may find applications in polarisation imaging, holographic encryption, holographic data storage, multi-view displays, holographic Stokesmeter, and polarimetry.
Publisher: Springer Science and Business Media LLC
Date: 24-10-2018
DOI: 10.1038/S41467-018-06952-1
Abstract: Complementary metal–oxide–semiconductor (CMOS) technology has provided a highly sensitive detection platform for high-resolution optical imaging, sensing and metrology. Although the detection of optical beams carrying angular momentum have been explored with nanophotonic methods, the metrology of optical angular momentum has been limited to bulk optics. We demonstrate angular-momentum nanometrology through the spatial displacement engineering of plasmonic angular momentum modes in a CMOS-compatible plasmonic topological insulator material. The generation and propagation of surface plasmon polaritons on the surface of an ultrathin topological insulator Sb 2 Te 3 film with a thickness of 100 nm is confirmed, exhibiting plasmonic figures of merit superior to noble metal plasmonics in the ultraviolet-visible frequency range. Angular-momentum nanometrology with a low crosstalk of less than −20 dB is achieved. This compact high-precision angular-momentum nanometrology opens an unprecedented opportunity for on-chip manipulation of optical angular momentum for high-capacity information processing, ultrasensitive molecular sensing, and ultracompact multi-functional optoelectronic devices.
Publisher: arXiv
Date: 2022
Publisher: SPIE
Date: 29-09-2017
DOI: 10.1117/12.2275802
Publisher: Springer Science and Business Media LLC
Date: 10-01-2022
DOI: 10.1038/S41377-021-00688-2
Abstract: Hyperbolic metamaterials with a unique hyperbolic dispersion relation allow propagating waves with infinitely large wavevectors and a high density of states. Researchers from Korea and Singapore provide a comprehensive review of hyperbolic metamaterials, including artificially structured hyperbolic media and natural hyperbolic materials. They explain key nanophotonic concepts and describe a range of applications for these versatile materials.
Publisher: SPIE-Intl Soc Optical Eng
Date: 07-11-2012
Publisher: OSA
Date: 2015
Publisher: American Physical Society (APS)
Date: 23-12-2022
Publisher: arXiv
Date: 2022
Publisher: Springer Science and Business Media LLC
Date: 22-04-2015
DOI: 10.1038/NCOMMS7984
Abstract: The emerging graphene-based material, an atomic layer of aromatic carbon atoms with exceptional electronic and optical properties, has offered unprecedented prospects for developing flat two-dimensional displaying systems. Here, we show that reduced graphene oxide enabled write-once holograms for wide-angle and full-colour three-dimensional images. This is achieved through the discovery of subwavelength-scale multilevel optical index modulation of athermally reduced graphene oxides by a single femtosecond pulsed beam. This new feature allows for static three-dimensional holographic images with a wide viewing angle up to 52 degrees. In addition, the spectrally flat optical index modulation in reduced graphene oxides enables wavelength-multiplexed holograms for full-colour images. The large and polarization-insensitive phase modulation over π in reduced graphene oxide composites enables to restore vectorial wavefronts of polarization discernible images through the vectorial diffraction of a reconstruction beam. Therefore, our technique can be leveraged to achieve compact and versatile holographic components for controlling light.
Publisher: Wiley
Date: 08-2018
Publisher: American Chemical Society (ACS)
Date: 09-09-2022
Publisher: Optica Publishing Group
Date: 2022
DOI: 10.1364/CLEOPR.2022.CMP16A_05
Abstract: Practical free-space communication systems suffer from turbulence-induced phase distortions to propagating beams, destroying the orthogonality of orbital angular momentum (OAM) modes used for space- ision multiplexing and introducing modal crosstalk. Here we present the design and use of an ultrathin OAM mode-sorting metasurface for investigating the deterioration of OAM orthogonality under different turbulence conditions, offering a compact, fast and efficient way to measure the OAM spectrum.
Publisher: Springer Science and Business Media LLC
Date: 26-07-2022
Publisher: American Chemical Society (ACS)
Date: 11-06-2021
Publisher: Optica Publishing Group
Date: 2021
Abstract: A complex- litude metasurface hologram designed in the moment space is fabricated via 3D laser nanoprinting for twisted light holography. The metasurface hologram allows for high-bandwidth orbital angular momentum multiplexing holography and a holographic video display.
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.PDP_2
Abstract: We demonstrate the design and 3D printing of a large-scale complex- litude metasurface hologram for orbital angular momentum-multiplexing holography. The independent and complete litude and phase manipulation allows the lensless reconstruction of 200 OAM-dependent orthogonal image frames for holographic videos displays.
Publisher: Wiley
Date: 14-04-2018
Publisher: Elsevier BV
Date: 06-2019
Publisher: American Chemical Society (ACS)
Date: 21-06-2022
Start Date: 2021
End Date: 2021
Funder: Macquarie University
View Funded ActivityStart Date: 2021
End Date: 2021
Funder: Australian Research Council
View Funded ActivityStart Date: 2022
End Date: 2025
Funder: Australian Research Council
View Funded ActivityStart Date: 06-2022
End Date: 12-2025
Amount: $434,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 11-2022
End Date: 11-2025
Amount: $350,000.00
Funder: Australian Research Council
View Funded Activity