Publications (13)
Coherently Coupled Carrier and Phonon Dynamics in Elemental Tellurium Probed by XUV Transient Absorption
Jonah R. Adelman, Hugo Laurell, Lauren B. Drescher +3
The narrow bandgap semiconductor elemental tellurium (Te) has a unique electronic structure due to strong spin-orbit splitting and a lack of inversion symmetry of it's helical latt…
The influence of final state interactions in attosecond photoelectron interferometry
Sizuo Luo, Robin Weissenbilder, Hugo Laurell +14
Fano resonances are ubiquitous phenomena appearing in many fields of physics, e.g. atomic or molecular photoionization, or electron transport in quantum dots. Recently, attosecond…
Attosecond electron-spin dynamics in Xe 4d photoionization
Shiyang Zhong, Jimmy Vinbladh, David Busto +12
The photoionization of xenon atoms in the 70-100 eV range reveals several fascinating physical phenomena such as a giant resonance induced by the dynamic rearrangement of the elect…
Probing electronic decoherence with high-resolution attosecond photoelectron interferometry
David Busto, Hugo Laurell, Daniel Finkelstein Shapiro +14
Quantum coherence plays a fundamental role in the study and control of ultrafast dynamics in matter. In the case of photoionization, entanglement of the photoelectron with the ion…
A multidimensional approach to quantum state tomography of photoelectron wavepackets
Hugo Laurell, Jorge Baños-Gutiérrez, Anne L'Huillier +2
There is a growing interest in reconstructing the density matrix of photoelectron wavepackets, in particular in complex systems where decoherence can be introduced either by a part…
Probing of Core Excitons in Solid NaF with Polarization-Selective Attosecond Time-Resolved Four-Wave Mixing Spectroscopy
Kevin Gulu Xiong, Rafael Quintero-Bermudez, Vincent Eggers +3
Nonlinear Four-wave mixing processes are a powerful technique to unravel ultrafast dynamics in solid-state systems. Here, we employ attosecond four-wave mixing spectroscopy with on…
Measuring the quantum state of photoelectrons
Hugo Laurell, Sizuo Luo, Robin Weissenbilder +17
A photoelectron, emitted due to the absorption of light quanta as described by the photoelectric effect, is often characterized experimentally by a classical quantity, its momentum…
Ultra-stable and versatile high-energy resolution setup for attosecond photoelectron spectroscopy
Sizuo Luo, Robin Weissenbilder, Hugo Laurell +12
Attosecond photoelectron spectroscopy is often performed with interferometric experimental setups that require outstanding stability. We demonstrate and characterize in detail an a…
From interface-limited to Auger-dominated carrier dynamics in -SnS
Hugo Laurell, Kevin Xiong, Nedjma Ouahioune +10
Metastable cubic tin(II) sulfide (-SnS) is an earth-abundant semiconductor whose three-dimensionally bonded chiral lattice may overcome the short minority-carrier lifetime of o…
Continuous variable quantum state tomography of photoelectrons
Hugo Laurell, Daniel Finkelstein-Shapiro, Christoph Dittel +12
We propose a continuous variable quantum state tomography protocol of electrons which result from the ionization of atoms or molecules by the absorption of extreme ultraviolet ligh…
Epitaxial single T centres in silicon-on-insulator
Christian H. Christiansen, Kasper H. Nielsen, Alisha Nanwani +26
Spin-photon interfaces based on silicon quantum emitters offer a scalable platform for quantum computing and networking. However, achieving coherent photon emission remains a prima…
Coherent phonon motions and ordered vacancy compound mediated quantum path interference in Cu-poor CuInGaSe (CIGS) with attosecond transient absorption
Hugo Laurell, Jonah R. Adelman, Elizaveta Yakovleva +7
In this study, coherent phonon motion is observed in bandgap excited CuInGaSe (CIGS) utilizing extreme ultraviolet (XUV) attosecond transient absorption spectro…
Resonant two-photon ionization of helium atoms studied by attosecond interferometry
Lana NeoriÄiÄ, David Busto, Hugo Laurell +15
We study resonant two-photon ionization of helium atoms via the , and P states using the 15 harmonic of a titanium-sapphire laser for the exc…