Search Results - "Tisch, John W G"
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Sub-10-fs observation of bound exciton formation in organic optoelectronic devices
Published in Nature communications (23-08-2022)“…Fundamental mechanisms underlying exciton formation in organic semiconductors are complex and elusive as it occurs on ultrashort sub-100-fs timescales. Some…”
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2
High-flux soft x-ray harmonic generation from ionization-shaped few-cycle laser pulses
Published in Science advances (01-05-2018)“…Laser-driven high-harmonic generation provides the only demonstrated route to generating stable, tabletop attosecond x-ray pulses but has low flux compared to…”
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3
Trajectory selection in high harmonic generation by controlling the phase between orthogonal two-color fields
Published in Physical review letters (07-10-2011)“…We demonstrate control of short and long quantum trajectories in high harmonic emission through the use of an orthogonally polarized two-color field. By…”
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Instantaneous mapping of coherently coupled electronic transitions and energy transfers in a photosynthetic complex using angle-resolved coherent optical wave-mixing
Published in Physical review letters (06-02-2009)“…Understanding the role of coherent electronic motion is expected to resolve general questions of importance in macromolecular energy transfer. We demonstrate a…”
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5
Dynamic imaging of molecules using high order harmonic generation
Published in Physical chemistry chemical physics : PCCP (01-01-2008)“…We review recent progress towards imaging the electronic wavefunctions and nuclear dynamics of small molecules using the high order harmonics emitted when a…”
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6
Comparison of high-order harmonic generation in uracil and thymine ablation plumes
Published in Physical chemistry chemical physics : PCCP (07-08-2013)“…We present studies of high-order harmonic generation (HHG) in laser ablation plumes of the ribonucleic acid nucleobase uracil and its deoxyribonucleic acid…”
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7
Attosecond physics Ultrafast goes ultralong
Published in Nature physics (01-05-2008)“…A systematic study of ionization and high harmonic generation in strong laser fields at long wavelengths confirms predictions made 40 years ago. The study has…”
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8
High harmonic generation as a seed source for free electron lasers
Published in Journal of modern optics (20-09-2011)“…The design of a high harmonic generation (HHG) source for seeding the proposed New Light Source free electron laser (FEL) is presented. The seed source is…”
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9
Derivation of the perfect wave for optimising the strong-field driven electron recollision energy
Published in Journal of modern optics (20-06-2010)“…In the article of L.E. Chipperfield et al. [Phys. Rev. Lett. 2009, 102, 063001], the ideal waveform was presented that maximised the recollision energy of a…”
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Journal Article Conference Proceeding -
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Spatio-temporal characterization of intense few-cycle 2 μm pulses
Published in Optics express (17-10-2016)“…We present a variant of spatially encoded spectral shearing interferometry for measuring two-dimensional spatio-temporal slices of few-cycle pulses centered…”
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11
In situ temporal measurement of ultrashort laser pulses at full power during high-intensity laser–matter interactions
Published in Optica (20-08-2020)“…In laser–matter interaction experiments, it is of paramount importance to characterize the laser pulse on target ( in situ ) and at full power. This allows…”
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12
Attosecond sampling of arbitrary optical waveforms
Published in Optica (20-03-2016)Get full text
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13
Strong-field ionization of clusters using two-cycle pulses at 1.8 μm
Published in Scientific reports (23-12-2016)“…The interaction of intense laser pulses with nanoscale particles leads to the production of high-energy electrons, ions, neutral atoms, neutrons and photons…”
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14
Attosecond impulsive stimulated X-ray Raman scattering in liquid water
Published in Science advances (27-09-2024)“…We report the measurement of impulsive stimulated x-ray Raman scattering in neutral liquid water. An attosecond pulse drives the excitations of an electronic…”
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15
The generation and utilisation of half-cycle cut-offs in high harmonic spectra
Published in Laser & photonics reviews (01-11-2010)“…High‐order harmonic spectra are composed of a coherent sum of half‐cycle emissions, the cut‐off energy of which depend sensitively on different sub‐cycle…”
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16
Anisotropic High Harmonic Generation in Wide Bandgap Dielectrics
Published in 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (26-06-2023)“…Solid High Harmonic Generation (HHG) has seen a recent surge in interest, as a promising path for bright, compact, and tuneable XUV sources as well as a…”
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Conference Proceeding -
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Direct characterisation of tuneable few-femtosecond dispersive-wave pulses in the deep UV
Published 04-03-2019“…Optics Letters, vol. 44, no. 4, p. 731, Feb. 2019 Dispersive wave emission (DWE) in gas-filled hollow-core dielectric waveguides is a promising source of…”
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18
Nanofocusing in Critically Coupled Nanogap Waveguide Resonators
Published in ACS photonics (17-07-2024)“…Coupling between optical antenna resonances is a powerful way to control the distribution of light in nanoscale systems. When the strength of coupling is…”
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Single-shot implementation of dispersion-scan for the characterization of ultrashort laser pulses
Published 02-11-2015“…We demonstrate a novel, single-shot ultrafast diagnostic, based on the dispersion-scan (d-scan) technique. In this implementation, rather than scanning wedges…”
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20
Ultrafast goes ultralong
Published in Nature physics (01-05-2008)“…A systematic study of ionization and high harmonic generation in strong laser fields at long wavelengths confirms predictions made 40 years ago, and has…”
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Journal Article