A5089850635- Orbital Angular Momentum in Optics
- Optical Polarization and Ellipsometry
- Microfluidic and Bio-sensing Technologies
- Laser-Matter Interactions and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Fiber Laser Technologies
- Radio Astronomy Observations and Technology
- Radio Wave Propagation Studies
- Adaptive optics and wavefront sensing
- Mechanical and Optical Resonators
- Advanced Optical Imaging Technologies
- Metamaterials and Metasurfaces Applications
- Near-Field Optical Microscopy
- Digital Holography and Microscopy
- Precipitation Measurement and Analysis
- Photonic and Optical Devices
- Fluid Dynamics and Heat Transfer
- Plant Surface Properties and Treatments
- Advanced Frequency and Time Standards
- Laser-Plasma Interactions and Diagnostics
- Atomic and Subatomic Physics Research
- Fluid Dynamics and Turbulent Flows
Foundation for Research and Technology Hellas
2019-2024
University of Crete
2019-2024
Centre National de la Recherche Scientifique
2024
Université Toulouse III - Paul Sabatier
2024
Laboratoire Collisions Agrégats Réactivité
2024
FORTH Institute of Electronic Structure and Laser
2022-2023
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around world to discuss exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter gravitational waves. primary objective was lay groundwork an international TVLBAI proto-collaboration. collaboration aims unite researchers different institutions strategize...
We show that light spiraling like a tornado can be generated by superimposing abruptly auto-focusing ring-Airy beams carry orbital angular momentum of opposite handedness. With different parabolic propagation trajectories, the are tailored to auto-focus at overlapping focal regions. This results in complex wave with intense lobes twist and shrink an accelerating fashion along propagation. By achieving acceleration values exceed <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...
We experimentally generate optical tornado waves using spatial multiplexing on a single-phase modulation device. In their focal region, the intensity pattern outlines spiral of decreasing radius and pitch. examine propagation dynamics such novel reveal key factors that lead to angular acceleration. Moreover, we propose two-color scheme makes it possible dynamically twisting light, an analog drill, can rotate at THz frequencies.
We demonstrate that by seeding an accelerating ring-Airy beam with a finite number of off-axis optical vortices, it transforms into tornado wave (ToW) upon propagation. Using numerical simulations, we show both the spiraling high-intensity lobes and vortices exhibit angular acceleration follow interwinding braid-like trajectories. Likewise, study effect number, position, topological charge on propagation dynamics reveal connection between tornados.
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around world to discuss exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter gravitational waves. primary objective was lay groundwork an international TVLBAI proto-collaboration. collaboration aims unite researchers different institutions strategize...
We show that Poincaré polarization singularities, spiraling like a tornado, can be generated by superimposing two orthogonally polarized, abruptly auto-focusing ring-Airy beams carry orbital angular momentum (OAM). Seeded phase vortices of the same helicity, which are adapted to high-intensity rings one beams, these singularities follow trajectories twist and shrink in an accelerating fashion along their propagation. Reaching acceleration exceeds 120 rad/mm
We demonstrate that by seeding an accelerating ring-Airy beam with a finite number of off-axis optical vortices, it transforms into Tornado wave (ToW) upon propagation. Using numerical simulations, we show both the spiraling high-intensity lobes and vortices exhibit angular acceleration follow interwinding braid-like trajectories. Likewise, study effect number, position, topological charge on propagation dynamics reveal connection between tornados.
We experimentally generate Tornado Waves using a single phase modulation device. show that, by applying spatial multiplexing techniques, such complex superimposing fields that carry orbital angular momentum of opposite handedness can be efficiently generated.
We demonstrate that by seeding an accelerating ring-Airy beam with a finite number of off-axis optical vortices, it transforms into Tornado wave (ToW) upon propagation. Using numerical simulations, we show both the spiraling high-intensity lobes and vortices exhibit angular acceleration follow interwinding braid-like trajectories. Likewise, study effect number, position, topological charge on propagation dynamics reveal connection between tornados.
We present an inverse design method for local tailoring of the characteristic properties optical beams, including formation subwavelength features in transverse plane. Our proposed technique is based on superposition either paraxial or non-paraxial Laguerre-Gaussian that generate desirable fields. This versatile enables precise control over amplitude and phase profiles, providing thus new potential applications wavefront shaping imaging.
We present an inverse design method for local tailoring of the characteristic properties optical beams, including formation subwavelength features in transverse plane. Our proposed technique is based on superposition either paraxial or non-paraxial Laguerre-Gaussian that generate desirable fields. This versatile enables precise control over amplitude and phase profiles, providing thus new potential applications wavefront shaping imaging.
Polarization singularities [1] have been extensively studied over the last two decades. They are formed in optical fields of non-uniform polarization, and depending on their properties classified into various types. For example, C-points [2] isolated points circular where orientation polarization ellipse is undefined. At such points, while around them elliptical.
Polarization gives an additional degree of freedom, that is crucial for structured light applications. The polar-ization state described by the chirality, shape and orientation polarization ellipse. Controlling precisely chirality can be advantageous applications involving light-chiral matter interactions [1].
A plethora of applications, ranging from linear to the nonlinear regime [1], are based on structured light. Moreover, wavefront shaping optical wavepackets enable us control focus position and shape, as in case recently introduced autofocusing ring-Airy, or circular Airy (CAB) beams [2], [3].
By superimposing vortex ring-Airy beams of opposite handedness spiral accelerating optical wave-packets are generated. The superimposed tuned to abruptly auto-focus at overlapping focal regions while following distinct trajectories.
Optical wave packets are often used as means of energy delivery on a remote target in various applications. The use shaped optical can, principle, enable us to control the intensity distribution and focus position linear non-linear propagation regimes. An ideal template for this tailored is recently introduced family cylindrically symmetric accelerating beams [1,2], referred circular Airy (CAB) or ring-Airy beams. These propagate curved trajectories, exhibit abrupt auto-focus, while at high...
We numerically investigate the trajectories of coupled optical braids high intensity lobes and vortices in Tornado waves. Likewise, we show that a properly phase modulated ring-Airy beam transforms to wave upon propagation.
We provide an inverse method for constructing a superoscillatory optical mask subwavelength focusing. Our approach is based on superpositions of paraxial Laguerre-Gaussian (LG) beams, by imposing features.
Tornado waves (ToWs) [1] were recently introduced theoretically as a new type of structured light that twists and accelerate both over the radial angular dimensions. are comprised by superimposing cylindrically symmetric accelerating beams [2] , [3] often referred circular Airy (CAB) or ring-Airy carry orbital momentum (OAM) opposite helicity [4] [5] . In this work we report on experimental observation Waves demonstrate their unique spatio-angular acceleration property. To generate such used...