3 papers
cond-mat.mtrl-sci2021
Covering a surface with pre-stressed ribbons : from theory to nano-structures fabrication
Alexandre Danescu, Philippe Regreny, Pierre Cremillieu +2
The paper deals with the fabrication of nano-shells from pre-stressed nano-plates release. Due to geometrical and technological restrictions we have to cover a given surface with t…
physics.optics2018
Directional lasing at high oblique angle from metasurface exhibiting multivalley dispersion
Hai Son Nguyen, Florian Dubois, Thierry Deschamps +5
We report on a metasurface laser emitting at the valley extremum of a multivalley energy-momentum dispersion. Such peculiar dispersion shape is obtained by hybridizing high quality…
physics.optics2017
Symmetry Breaking in Photonic Crystals: On-Demand Dispersion from Flatband to Dirac Cones
Hai Son Nguyen, Florian Dubois, Thierry Deschamps +6
We demonstrate that symmetry breaking opens a new degree of freedom to tailor the energy-momentum dispersion in photonic crystals. Using a general theoretical framework in two illu…