Romain Guérout

Radiative heat transfer between two dielectric nanogratings in the scattering approach

We present a theoretical study of radiative heat transfer between dielectric nanogratings in the scattering approach. As a comparision with these exact results, we also evaluate the domain of validity of Derjaguins Proximity Approximation (PA). We consider a system of two corrugated silica plates with various grating geometries, separation distances, and lateral displacement of the plates with respect to one another. Numerical computations show that while the PA is a good approximation for aligned gratings, it cannot be used when the gratings are laterally displaced. We illustrate this by a thermal modulator device for nanosystems based on such a displacement.

Casimir force on a surface with shallow nanoscale corrugations: geometry and finite conductivity effects.

We measure the Casimir force between a gold sphere and a silicon plate with nanoscale, rectangular corrugations with a depth comparable to the separation between the surfaces. In the proximity force approximation (PFA), both the top and bottom surfaces of the corrugations contribute to the force, leading to a distance dependence that is distinct from a flat surface. The measured Casimir force is found to deviate from the PFA by up to 10%, in good agreement with calculations based on scattering theory that includes both geometry effects and the optical properties of the material.

Electronic structure of the magnesium hydride molecular ion

In this paper, using a standard quantum chemistry approach based on pseudopotentials for atomic core representation, Gaussian basis sets, and effective core polarization potentials, we investigate the electronic properties of the MgH

Structure of the alkali-metal-atom + strontium molecular ions: towards photoassociation and formation of cold molecular ions.

^+

Quantum reflection of antihydrogen from the Casimir potential above matter slabs

ion. We first determine potential energy curves for several states using different basis sets and discuss their predicted accuracy by comparing our values of the well depths and position with other available results. We then calculate permanent and transition dipole moments for several transitions. Finally for the first time, we calculate the static dipole polarizability of MgH

Thermal Casimir force between nanostructured surfaces

^+

Ground- and excited-state properties of the polar and paramagnetic RbSr molecule: A comparative study

as function of the interatomic distance. This study represents the first step towards the modeling of collisions between trapped cold Mg

Quasiresonant van der Waals Interaction between Nonidentical Atoms.

^+

Quantum reflection of antihydrogen from nanoporous media

ions and H

Negative Casimir entropies in nanoparticle interactions.

_2