320 citations · 1.4k across the 23 of their papers we have counts for
23 papers
Fano resonance-assisted all-dielectric array for enhanced near-field optical trapping of nanoparticles
Donato Conteduca, Saba N. Khan, Manuel A. Martínez Ruiz +3
Near-field optics can overcome the diffraction limit by creating strong optical gradients to enable the trapping of nanoparticles. However, it remains challenging to achieve effici…
Understanding the impact of heavy ions and tailoring the optical properties of large-area Monolayer WS2 using Focused Ion Beam
Fahrettin Sarcan, Nicola J. Fairbairn, Panaiot Zotev +10
Focused ion beam (FIB) has been used as an effective tool for precise nanoscale fabrication. It has recently been employed to tailor defect engineering in functional nanomaterials…
Van der Waals Materials for Applications in Nanophotonics
Panaiot G. Zotev, Yue Wang, Daniel Andres-Penares +12
Numerous optical phenomena and applications have been enabled by nanophotonic structures. Their current fabrication from high refractive index dielectrics, such as silicon or galli…
Correction of aberrations via polarization in single layer metalenses
Augusto Martins, Kezheng Li, Guilherme S. Arruda +6
The correction of multiple aberrations in an optical system requires different optical elements, which increases its cost and complexity. Metasurfaces hold great promise to providi…
Metalenses with polarization-independent adaptive nano-antennas
Jianchao Zhang, Haowen Liang, Yong Long +8
Metalens research has made major advances in recent years. These advances rely on the simple design principle of arranging meta-atoms in regular arrays to create an arbitrary phase…
Transition metal dichalcogenide dimer nano-antennas with ultra-small gaps
Panaiot G. Zotev, Yue Wang, Luca Sortino +8
Transition metal dichalcogenides have emerged as promising materials for nano-photonic resonators due to their large refractive index, low absorption within a large portion of the…
Attachment and antibiotic response of early-stage biofilms studied using resonant hyperspectral imaging
Yue Wang, Christopher P. Reardon, Nicholas Read +5
Many bacterial species readily develop biofilms that act as a protective matrix against external challenge, e.g. from antimicrobial treatment. Therefore, biofilms are often respons…
An Ultra-high Numerical Aperture Metalens at Visible Wavelengths
Haowen Liang, Qiaoling Lin, Xiangsheng Xie +8
We demonstrate a metalens with NA = 0.98 in air, a bandwidth (FWHM) of 274 nm and a focusing efficiency of 67% at 532 nm wavelength, which is close to the transmission performance…
1305 nm MoTe2-on-silicon Laser
Hanlin Fang, Jin Liu, Hongji Li +6
The missing piece in the jigsaw of silicon photonics is a light source that can be easily incorporated into the standard silicon fabrication process. Recent advances in the develop…
Highly effective relativistic free carrier plasma mirror confined within a silicon slow light photonic crystal waveguide
Mahmoud A. Gaafar, Dirk Jalas, Liam OFaolain +4
Reflection at relativistically moving plasma mirrors is a well-known approach for frequency conversion as an alternative to nonlinear techniques. A key issue with plasma mirrors is…
Efficient silicon metasurfaces for visible light
Zhenpeng Zhou, Juntao Li, Rongbin Su +9
Dielectric metasurfaces require high refractive index contrast materials for optimum performance. This requirement imposes a severe restraint; devices have either been demonstrated…
Optical performance monitoring at 640Gb/s via slow-light in a silicon nanowire
B. Corcoran, C. Monat, M. Pelusi +6
We demonstrate optical performance monitoring of in-band optical signal to noise ratio (OSNR) and residual dispersion, at bit rates of 40Gb/s, 160Gb/s and 640Gb/s, using slow-light…
Lower bound for the spatial extent of localized modes in photonic-crystal waveguides with small random imperfections
Rémi Faggiani, Alexandre Baron, Xiaorun Zang +8
Light localization due to random imperfections in periodic media is paramount in photonics research. The group index is known to be a key parameter for localization near photonic b…
Ultra-compact optical auto-correlator based on slow-light enhanced third harmonic generation in a silicon photonic crystal waveguide
Christelle Monat, Christian Grillet, Matthew Collins +8
The ability to use coherent light for material science and applications is directly linked to our ability to measure short optical pulses. While free-space optical methods are well…
Phase sensitive amplification in silicon photonic crystal waveguides
Yanbing, Zhang, Chad Husko +5
We experimentally demonstrate phase sensitive amplification (PSA) in a silicon photonic crystal waveguide based on pump-degenerate four-wave mixing. An 11 dB phase extinction ratio…
Multi-photon absorption limits to heralded single photon sources
Chad A. Husko, Alex S. Clark, Matthew J. Collins +7
Single photons are of paramount importance to future quantum technologies, including quantum communication and computation. Nonlinear photonic devices using parametric processes of…
Ultrafast tuneable optical delay line based on indirect photonic transitions
Daryl M. Beggs, Isabella H. Rey, Tobias Kampfrath +3
We introduce the concept of an indirect photonic transition and demonstrate its use in a dynamic delay line to alter the group velocity of an optical pulse. Operating on an ultrafa…
Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses
Daryl M. Beggs, Thomas F. Krauss, L. Kuipers +1
We demonstrate, by theory and experiment, the ultrafast tilting of the dispersion curve of a photonic-crystal waveguide following the absorption of a femtosecond pump pulse. By sha…
Chaos-assisted, broadband trapping of light in optical resonators
C. Liu, A. Di Falco, D. Molinari +4
Chaos is a phenomenon that occurs in many aspects of contemporary science. In classical dynamics, chaos is defined as a hypersensitivity to initial conditions. The presence of chao…
Measuring the spatial extent of individual localized photonic states
Marko Spasenovic, Daryl M. Beggs, Philippe Lalanne +3
We measure the spatial extent of individual localized photonic states in a slow-light photonic crystal waveguide. The size of the states is measured by perturbing each state indivi…
Characteristics of Correlated Photon Pairs Generated in Ultra-compact Silicon Slow-light Photonic Crystal Waveguides
Chunle Xiong, Christelle Monat, Matthew J. Collins +8
We report the characterization of correlated photon pairs generated in dispersion-engineered silicon slow-light photonic crystal waveguides pumped by picosecond pulses. We found th…
Slow-light Enhanced Correlated Photon-Pair Generation in Silicon
C. Xiong, Christelle Monat, Alex S. Clark +8
We report the generation of correlated photon pairs in the telecom C-band, at room temperature, from a dispersion-engineered silicon photonic crystal waveguide. The spontaneous fou…
Experimental evidence of guided resonances in photonic crystals with aperiodically-ordered supercells
Armando Ricciardi, Marco Pisco, Ilaria Gallina +5
We report on the first experimental evidence of guided resonances (GRs) in photonic crystal slabs based on aperiodically-ordered supercells. Using the Ammann-Beenker (quasiperiodic…