activity
20102026
most citedExtreme-ultraviolet pump-probe studies of one femtosecond scale electron dynamics

247 citations · 851 across the 29 of their papers we have counts for

collaborators

30 papers

physics.optics2026

A High Intensity Attosecond Light Source in Compact Geometry at ELI ALPS User Facility

Arjun Nayak, Mathieu Dumergue, Sourin Mukhopadhyay +12

High-order harmonic generation (HHG) has become a standard technique for producing attosecond XUV pulses in the laboratory, yet the high flux necessary for nonlinear XUV photoioniz…

physics.optics2025

Dependence of the gas phase high harmonic generation process on the driving laser-field duration and intensity

Balazs Nagyilles, Szabolcs Toth, Prabhash Prasannan Geetha +2

Ever since the advent of high-order harmonic generation, one of the main goals has been to maximize the high harmonic yield. This is due to the wide range of applications in multid…

physics.optics2024

Attosecond spectroscopy using vacuum-ultraviolet pulses emitted from laser-driven semiconductors

A. Nayak, D. Rajak, B. Farkas +9

Strongly laser-driven semiconductor crystals offer substantial advantages for the study of many-body physics and ultrafast optoelectronics via the high harmonic generation process.…

quant-ph2023★ 57 cited

Entanglement and squeezing of the optical field modes in high harmonic generation

Philipp Stammer, Javier Rivera-Dean, Andrew S. Maxwell +5

Squeezing of optical fields, used as a powerful resource for many applications, and the radiation properties in the process of high harmonic generation have thus far been considere…

quant-ph2023

Quantum optical analysis of high-order harmonic generation in H molecular ions

J. Rivera-Dean, P. Stammer, A. S. Maxwell +5

We present a comprehensive theoretical investigation of high-order harmonic generation in H molecular ions within a quantum optical framework. Our study focuses on characteri…

quant-ph2023★ 61 cited

Strong laser physics, non-classical light states and quantum information science

Utso Bhattacharya, Theocharis Lamprou, Andrew S. Maxwell +7

Strong laser physics is a research direction that relies on the use of high-power lasers and has led to fascinating achievements ranging from relativistic particle acceleration to…

physics.atom-ph2022★ 2 cited

Generation of micro-Joule level coherent quasi-continuum extreme ultraviolet radiation using multi-cycle intense laser-atom interactions

Vassilis Tsafas, Theocharis Lamprou, Emmanouil Skantzakis +4

In the present work we report on the current progress of the recently constructed GW attosecond extreme ultraviolet (XUV) source developed at the Institute of Electronic Structure…

quant-ph2022★ 6 cited

Entanglement and non-classical states of light in a strong-laser driven solid-state system

Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell +6

The development of sources delivering non-classical states of light is one of the main needs for applications of optical quantum information science. Here, we demonstrate the gener…

physics.atom-ph2022

Two-XUV-photon double ionization of Neon studied at the Extreme Light Infrastructure (ELI-ALPS)

I. Orfanos, E. Skantzakis, A. Nayak +12

Two XUV-photon double ionization of Ne, induced by an intense few-pulse attosecond train with a ~ 4 fs envelope duration is investigated experimentally and theoretically. The exper…

quant-ph2022★ 9 cited

Attosecond Physics and Quantum Information Science

M. Lewenstein, N. Baldelli, U. Bhattacharya +14

In this article, we will discuss a possibility of a symbiosis for attophysics (AP) and quantum information (QI) and quantum technologies (QT). We will argue that within few years A…

quant-ph2022★ 86 cited

Quantum electrodynamics of intense laser-matter interactions: A tool for quantum state engineering

Philipp Stammer, Javier Rivera-Dean, Andrew Maxwell +5

Intense laser-matter interactions are at the center of interest in research and technology since the development of high power lasers. They have been widely used for fundamental st…

quant-ph2021★ 56 cited

Strong laser fields and their power to generate controllable high-photon-number coherent-state superpositions

Javier Rivera-Dean, Theocharis Lamprou, Emilio Pisanty +5

Recently, intensely driven laser-matter interactions have been used to connect the fields of strong laser field physics with quantum optics by generating non-classical states of li…

quant-ph2021

New schemes for creating large optical Schrodinger cat states using strong laser fields

Javier Rivera-Dean, Philipp Stammer, Emilio Pisanty +4

Recently, using conditioning approaches on the high-harmonic generation process induced by intense laser-atom interactions, we have developed a new method for the generation of opt…

quant-ph2021★ 78 cited

High photon number entangled states and coherent state superposition from the extreme-ultraviolet to the far infrared

Philipp Stammer, Javier Rivera-Dean, Theocharis Lamprou +4

We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude…

physics.atom-ph2021★ 1 cited

Detailed study of quantum path interferences in high harmonic generation driven by chirped laser pulses

Tamás Csizmadia, Lénárd Gulyás Oldal, Peng Ye +7

We investigate the electron quantum path interference effects during high harmonic generation in atomic gas medium driven by ultrashort chirped laser pulses. To achieve that, we id…

physics.atom-ph2021

Temporal characterization of long quantum-path high harmonics

A. Carpeggiani, B. Bodi, E. S. Skantzakis +5

We measure for the first time the duration of long-quantum path EUV high harmonics produced in xenon gas. The long-quantum path contribution to the high-harmonic signal was careful…

physics.optics2021★ 16 cited

Quantum-Optical Spectrometry in Relativistic Laser-Plasma Interactions Using the High-Harmonic Generation Process: A Proposal

Theocharis Lamprou, Rodrigo Lopez-Martens, Stefan Haessler +8

Quantum-optical spectrometry is a recently developed shot-to-shot photon correlation-based method, namely using a quantum spectrometer (QS), that has been used to reveal the quantu…

physics.atom-ph2020★ 10 cited

Quantum path interferences in high-order harmonic generation from aligned diatomic molecules

S. Chatziathanasiou, I. Liontos, E. Skantzakis +8

Electron quantum path interferences in strongly laser-driven aligned molecules and their dependence on the molecular alignment is an essential open problem in strong-field molecula…

physics.atom-ph2019★ 14 cited

Imaging the source of high-harmonics generated in atomic gas media

Stefanos Chatziathanasiou, Subhendu Kahaly, Dimitris Charalambidis +2

We report the application of the time gated ion microscopy technique in accessing online the position of the source of harmonics generated in atomic gas media. This is achieved by…

physics.atom-ph2019

Polarization shaping of high-order harmonics in laser-aligned molecules

E. Skantzakis, S. Chatziathansiou, P. A. Carpeggiani +7

The present work reports on the generation of short-pulse coherent extreme ultraviolet radiation of controlled polarization. The proposed strategy is based on high-order harmonics…

physics.atom-ph2019★ 14 cited

Time gated ion microscopy of light-atom interactions

P. Tzallas, B. Bergues, D. Rompotis +6

The development of ultra-short intense laser sources in the visible and extreme ultraviolet (XUV) spectral range led to fascinating studies in laser-matter interactions and attosec…

physics.optics2018★ 64 cited

Sub-cycle quantum electrodynamics in strongly laser-driven semiconductors

N. Tsatrafyllis, S. Kuhn, M. Dumergue +8

Electrodynamical processes induced in complex systems like semiconductors by strong electromagnetic fields, have traditionally/conventionally been described using semi-classical ap…

astro-ph.CO2018★ 20 cited

Non-parametric Reconstruction of Growth Index via Gaussian Processes

Zhao-Yu Yin, Hao Wei

The accelerated cosmic expansion could be due to dark energy within general relativity (GR), or modified gravity. It is of interest to differentiate between them, by using both the…

physics.atom-ph2018★ 67 cited

Multiple ionization of argon via xuv-photon absorption induced by 20-gigawatt high-harmonic pulses

A. Nayak, I. Orfanos, I. Makos +10

We report the observation of multiple ionization of Argon through multi-XUV-photon absorption induced by an unprecedentedly powerful laser driven high-harmonic-generation source. C…