A5044384031- Plasmonic and Surface Plasmon Research
- Metamaterials and Metasurfaces Applications
- Orbital Angular Momentum in Optics
- Photonic and Optical Devices
- Quantum Information and Cryptography
- Advanced Fluorescence Microscopy Techniques
- Neural Networks and Reservoir Computing
- Random lasers and scattering media
- Quantum optics and atomic interactions
- Mechanical and Optical Resonators
- Nonlinear Optical Materials Studies
- Quantum Mechanics and Applications
- Advanced Fiber Laser Technologies
- Laser-Matter Interactions and Applications
- Optical Network Technologies
- Near-Field Optical Microscopy
- Advanced Photonic Communication Systems
- Advanced Antenna and Metasurface Technologies
- Optical Wireless Communication Technologies
- Molecular Communication and Nanonetworks
- Retinal Development and Disorders
- Photonic Crystals and Applications
- Advanced Optical Imaging Technologies
- Photoreceptor and optogenetics research
- Optical Polarization and Ellipsometry
University of Glasgow
2020-2022
Texas A&M University
2018-2020
Nanyang Technological University
2015-2017
The polarization state of light is a key parameter in many imaging systems. For example, it can image mechanical stress and other physical properties that are not seen with conventional also play central role quantum sensing. However, more difficult to image, polarimetry typically involves several independent measurements moving parts the measurement device. Metasurfaces interleaved designs have demonstrated sensitivity either linear or circular/elliptical states. Here, we present an...
Super-oscillation is a counterintuitive phenomenon describing localized fast variations of functions and fields that happen at frequencies higher than the highest Fourier component their spectra. The physical implications this effect have been studied in information theory optics classical fields, used super-resolution imaging. As general wave dynamics, super-oscillations also predicted to exist quantum wavefunctions. Here we report experimental demonstration super-oscillatory behavior...
Quantum nonlocality, i.e., the presence of strong correlations in spatially separated systems that are forbidden by local realism, lies at heart quantum communications and computing. Here, we use polarization-entangled photon pairs to demonstrate a nonlocal interaction light with plasmonic structure. Through detection one polarization-sensitive device, can prevent or allow absorption second, remotely located photon. We this entangled photons polarization, which is coupled into plasmon thin...
Quantum entanglement is a key resource that can be exploited for range of applications such as quantum teleportation, computation, and cryptography. However, efforts to exploit in imaging systems have so far led solutions ghost imaging, since found classical implementations. Here, we demonstrate an optical protocol relies uniquely on entanglement: Two polarizing patterns imprinted superimposed metasurface are separately imaged only when using entangled photons. Unentangled light not able...
Two-photon absorption (TPA) fluorescence of biomarkers has been decisive in advancing the fields biosensing and deep-tissue vivo imaging live specimens. However, due to extremely small TPA cross section quadratic dependence on input photon flux, high peak-intensity pulsed lasers are imperative, which can result significant photo- thermal-damage. Previous works entangled (ETPA) with spontaneous parametric down-conversion (SPDC) light sources found a linear photon-pair but limited by low...
Second order intensity correlations of speckle illumination are extensively used in imaging applications that require going beyond the Rayleigh limit. The theoretical analysis shows significantly improved can be extracted from study increasingly higher cumulants. We provide experimental evidence by demonstrating resolution what is achievable second correlations. present results up to 20th order. also show an increased visibility cumulant compared moment Our findings clearly suggest benefits...
Quantum nonlocality, i.e. the presence of strong correlations in spatially seperated systems which are forbidden by local realism, lies at heart quantum communications and computing. Here, we use polarization-entangled photon pairs to demonstrate a nonlocal control absorption light plasmonic structure. Through detection one with polarization-sensitive device, can almost deterministically prevent or allow second, remotely located photon. We this photons, is absorbed coupling into plasmon thin...
We demonstrate that by using squeezed light for two-photon absorption (TPA) of fluorescein biomarkers, a fluorescence enhancement nearly 50 is achieved as compared to conventional TPA coherent light.
Using a source of entangled photons we show that polarization-sensitive detection the can be used to switch "on" and "off" absorption other photon in thin plasmonic metamaterial film.
Plasmonics and metamaterials have recently been shown to allow the control interaction with non-classical states of light, a rather counterintuitive finding given high losses typically encountered in these systems. Here, we demonstrate range functionalities that are allowed correlated entangled photons used illuminate multiple, overlaid patterns on plasmonic metasurfaces. Correlated nonlocally determine pattern is imaged or, alternatively un-scramble an image otherwise blurred. Entangled...
By using correlated photon pairs, we demonstrate the non-local control of single-photon images formed by a polarisation sensitive metasurface. Non-local selection photon, changes image recorded after
The polarization state of light is a key parameter in many imaging systems. For example, it can image mechanical stress and other physical properties that are not seen with conventional imaging, also play central role quantum sensing. However, more difficult to polarimetry typically involves several independent measurements moving parts the measurement device. Metasurfaces interleaved designs have demonstrated sensitivity either linear or circular/elliptical states. Here we present an...
We demonstrate an all-dielectric meta-polarimeter with a single unit-cell design capable of direct measurement any arbitrary polarization states, achieving polarization-measurement fidelity 99 ± 1%. This holds promise for ultra-compact imaging and quantum state tomography.
We present a dielectric metasurface using an asymmetric design that exploits exotic multipolar interactions forming polarisation-dependent resonant eigenmodes. ex- perimentally demonstrate single-shot full-state polarimetry.