Attosecond physics at the nanoscale MF Ciappina, JA Pérez-Hernández, AS Landsman, WA Okell, ... Reports on Progress in Physics 80 (5), 054401, 2017 | 359 | 2017 |
Invited review article: technology for attosecond science F Frank, C Arrell, T Witting, WA Okell, J McKenna, JS Robinson, ... Review of Scientific Instruments 83 (7), 2012 | 112 | 2012 |
Characterization of high-intensity sub-4-fs laser pulses using spatially encoded spectral shearing interferometry T Witting, F Frank, CA Arrell, WA Okell, JP Marangos, JWG Tisch Optics letters 36 (9), 1680-1682, 2011 | 100 | 2011 |
Attosecond nanoscale near-field sampling B Förg, J Schötz, F Süßmann, M Förster, M Krüger, B Ahn, WA Okell, ... Nature Communications 7 (1), 11717, 2016 | 90 | 2016 |
High-order harmonic generation in graphite plasma plumes using ultrashort laser pulses: a systematic analysis of harmonic radiation and plasma conditions RA Ganeev, C Hutchison, T Witting, F Frank, WA Okell, A Zaïr, S Weber, ... Journal of Physics B: Atomic, Molecular and Optical Physics 45 (16), 165402, 2012 | 75 | 2012 |
Enhanced high-order-harmonic generation in a carbon ablation plume RA Ganeev, T Witting, C Hutchison, F Frank, PV Redkin, WA Okell, DY Lei, ... Physical Review A—Atomic, Molecular, and Optical Physics 85 (1), 015807, 2012 | 75 | 2012 |
Stable generation of high-order harmonics of femtosecond laser radiation from laser produced plasma plumes at 1 kHz pulse repetition rate C Hutchison, RA Ganeev, T Witting, F Frank, WA Okell, JWG Tisch, ... Optics letters 37 (11), 2064-2066, 2012 | 70 | 2012 |
Isolated sub-fs XUV pulse generation in Mn plasma ablation RA Ganeev, T Witting, C Hutchison, F Frank, M Tudorovskaya, M Lein, ... Optics express 20 (23), 25239-25248, 2012 | 64 | 2012 |
Synchronized pulses generated at 20 eV and 90 eV for attosecond pump–probe experiments D Fabris, T Witting, WA Okell, DJ Walke, P Matia-Hernando, J Henkel, ... Nature Photonics 9 (6), 383-387, 2015 | 61 | 2015 |
Enhancement of high harmonics from plasmas using two-color pump and chirp variation of 1 kHz Ti: sapphire laser pulses RA Ganeev, C Hutchison, A Zaïr, T Witting, F Frank, WA Okell, JWG Tisch, ... Optics express 20 (1), 90-100, 2012 | 55 | 2012 |
Sub-4-fs laser pulse characterization by spatially resolved spectral shearing interferometry and attosecond streaking T Witting, F Frank, WA Okell, CA Arrell, JP Marangos, JWG Tisch Journal of Physics B: Atomic, Molecular and Optical Physics 45 (7), 074014, 2012 | 54 | 2012 |
Design, specifications, and first beam measurements of the compact linear accelerator for research and applications front end D Angal-Kalinin, A Bainbridge, AD Brynes, RK Buckley, SR Buckley, ... Physical Review Accelerators and Beams 23 (4), 044801, 2020 | 47 | 2020 |
High-order harmonic generation in fullerenes using few-and multi-cycle pulses of different wavelengths RA Ganeev, C Hutchison, T Witting, F Frank, S Weber, WA Okell, ... JOSA B 30 (1), 7-12, 2013 | 47 | 2013 |
Carrier-envelope phase stability of hollow fibers used for high-energy few-cycle pulse generation WA Okell, T Witting, D Fabris, D Austin, M Bocoum, F Frank, A Ricci, ... Optics Letters 38 (19), 3918-3921, 2013 | 39 | 2013 |
Temporal broadening of attosecond photoelectron wavepackets from solid surfaces WA Okell, T Witting, D Fabris, CA Arrell, J Hengster, S Ibrahimkutty, ... Optica 2 (4), 383-387, 2015 | 38 | 2015 |
A simple electron time-of-flight spectrometer for ultrafast vacuum ultraviolet photoelectron spectroscopy of liquid solutions CA Arrell, J Ojeda, M Sabbar, WA Okell, T Witting, T Siegel, Z Diveki, ... Review of scientific instruments 85 (10), 2014 | 34 | 2014 |
Reconstruction of nanoscale near fields by attosecond streaking J Schötz, B Förg, M Förster, WA Okell, MI Stockman, F Krausz, ... IEEE Journal of Selected Topics in Quantum Electronics 23 (3), 77-87, 2016 | 26 | 2016 |
Nonadiabatic ponderomotive effects in photoemission from nanotips in intense midinfrared laser fields J Schötz, S Mitra, H Fuest, M Neuhaus, WA Okell, M Förster, T Paschen, ... Physical Review A 97 (1), 013413, 2018 | 24 | 2018 |
Spatial coherence measurements of non-resonant and resonant high harmonics generated in laser ablation plumes RA Ganeev, Z Abdelrahman, F Frank, T Witting, WA Okell, D Fabris, ... Applied Physics Letters 104 (2), 2014 | 23 | 2014 |
Attosecond-controlled photoemission from metal nanowire tips in the few-electron regime B Ahn, J Schötz, M Kang, WA Okell, S Mitra, B Förg, S Zherebtsov, ... Apl Photonics 2 (3), 2017 | 20 | 2017 |