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- Scuola Normale SuperioreIT710 papers
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4 papers · 2 filters
Transition from non-resonant to resonant random lasers by the geometrical confinement of disorder
N. Ghofraniha, I. Viola, A. Zacheo +3
We report on a novel kind of transition in random lasers induced by the geometrical confinement of the emitting material. Different dye doped paper devices with controlled geometry…
A self-stabilized coherent phonon source driven by optical forces
Daniel Navarro-Urrios, Nestor E. Capuj, Jordi Gomis-Bresco +5
Optical forces can set tiny objects into states of coherent mechanical oscillation, also known as mechanical or phonon lasing. We present a novel pumping mechanism in an opto-mecha…
Gate-tunable coherent perfect absorption of terahertz radiation in graphene
Fangli Liu, Y. D. Chong, Shaffique Adam +1
Perfect absorption of radiation in a graphene sheet may play a pivotal role in the realization of technologically relevant optoelectronic devices. In particular, perfect absorption…
Polarimetry-based analysis of dipolar transitions of single colloidal CdSe/CdS dot-in-rods
Clotilde Lethiec, Ferruccio Pisanello, Luigi Carbone +3
We prove experimentally, upon polarization analysis performed on a large statistic of single nanoemitters, that high quality core/shell CdSe/CdS dot-in-rods behave as linear dipole…