Publications related to Enhanced third-order nonlinearity in semiconductors giving rise to 1 THz radiation

Strongly Coupled Coherent Phonons in Single-Layer MoS2

We present a transient absorption setup combining broadband detection over the visible-UV range with high temporal resolution (similar to 20 fs) which is ideally suited to trigger and detect vibrational coherences in different classes of materials. We gene ...

AMER CHEMICAL SOC2020

Differential steric effects in the inelastic scattering of NO(X) plus Ar: spin-orbit changing transitions

Sean Dennis Steven Gordon

Spin-orbit changing transitions for bond-axis oriented collisions of NO(X) with Ar have been investigated with full quantum state selection via a crossed molecular beam experiment at collision energies of 532 cm(-1) and 651 cm(-1). NO(X) molecules were sel ...

2019

Integrated Gallium Phosphide Photonics

Katharina Schmeing

The integration of new materials mediating light-matter interaction in nanoscale devices is a persistent goal in nanophotonics. One of these materials is Gallium phosphide, which offers an attractive combination of a high refractive index (n=3.05 at a wave ...

EPFL2019

Soft-phonon driven hexagonal-orthorhombic phase transition in BaVS3

Helmuth Berger

The lattice dynamics of low-dimensional BaVS3 is reported across the hexagonal-orthorhombic phase transition occurring at T-S = 250 K using a combination of the thermal diffuse scattering of x rays, inelastic x-ray scattering, and density functional theory ...

2019

Photonic Damascene process for integrated high Q microresonator based nonlinear photonic devices

Martin Hubert Peter Pfeiffer

Chip-based optical waveguides formed by a silicon nitride (Si3N4) core and a silicon dioxide (SiO2) cladding are an important platform for low loss waveguides and nonlinear optics. High Q microresonators based on this material system have become a standard ...

EPFL2018

Vibrationally and Rotationally Inelastic Scattering of Methane from Ni(111)

Jörn Werdecker

This thesis presents a quantum-state-resolved molecular beam study of the non-reactive scattering of methane (CH4) from a Ni(111) surface. It is one of the first experimental investigations in which the internal quantum state distribution of a polyatomic m ...

EPFL2018

New Insights into the Verwey Transition in Magnetite

Simone Borroni

Magnetite (Fe

_3

O

_4

) is the first magnetic material discovered by mankind. Despite thousands of years of applications, from the magnetic compass to data storage, and decades of basic research, it remains among the most fascinating materials for physicis ...

EPFL2018

Solvent fluctuations and nuclear quantum effects modulate the molecular hyperpolarizability of water

Michele Ceriotti, Sylvie Roke, David Mark Wilkins, Andrea Grisafi, Gabriele Tocci, Chung-Wen Liang

Second-harmonic scattering (SHS) experiments provide a unique approach to probe noncentrosymmetric environments in aqueous media, from bulk solutions to interfaces, living cells, and tissue. A central assumption made in analyzing SHS experiments is that ea ...

Amer Physical Soc2017

Surface origin and control of resonance Raman scattering and surface band gap in indium nitride

Esther Alarcon Llado

Resonance Raman scattering measurements were performed on indium nitride thin films under conditions where the surface electron concentration was controlled by an electrolyte gate. As the surface condition is tuned from electron depletion to accumulation, ...

Iop Publishing Ltd2016

Non-centrosymmetric plasmonic crystals for second-harmonic generation with controlled anisotropy and enhancement

Elyahou Kapon, Benjamin Dwir, Justyna Szeszko

Rectangular arrays of pyramidal recesses coated by silver film are investigated by means of polarization-resolved nonlinear microscopy at 900 nm fundamental wavelength, demonstrating strong dependence of the dipole-allowed SHG upon the lattice parameters. ...

Wiley-V C H Verlag Gmbh2016

Enhanced third-order nonlinearity in semiconductors giving rise to 1 THz radiation

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Strongly Coupled Coherent Phonons in Single-Layer MoS2

Differential steric effects in the inelastic scattering of NO(X) plus Ar: spin-orbit changing transitions

Integrated Gallium Phosphide Photonics

Soft-phonon driven hexagonal-orthorhombic phase transition in BaVS3

Photonic Damascene process for integrated high Q microresonator based nonlinear photonic devices

Vibrationally and Rotationally Inelastic Scattering of Methane from Ni(111)

New Insights into the Verwey Transition in Magnetite

Solvent fluctuations and nuclear quantum effects modulate the molecular hyperpolarizability of water

Surface origin and control of resonance Raman scattering and surface band gap in indium nitride

Non-centrosymmetric plasmonic crystals for second-harmonic generation with controlled anisotropy and enhancement

Differential steric effects in the inelastic scattering of NO(X) plus Ar: spin-orbit changing transitions

Vibrationally and Rotationally Inelastic Scattering of Methane from Ni(111)

Integrated Gallium Phosphide Photonics

Soft-phonon driven hexagonal-orthorhombic phase transition in BaVS3

New Insights into the Verwey Transition in Magnetite

Strongly Coupled Coherent Phonons in Single-Layer MoS2

Surface origin and control of resonance Raman scattering and surface band gap in indium nitride

Photonic Damascene process for integrated high Q microresonator based nonlinear photonic devices

Non-centrosymmetric plasmonic crystals for second-harmonic generation with controlled anisotropy and enhancement

Solvent fluctuations and nuclear quantum effects modulate the molecular hyperpolarizability of water