activity
20032023
most citedObservation of Dirac plasmons in a topological insulator

405 citations · 1.4k across the 35 of their papers we have counts for

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6 papers · 1 filter

physics.optics2022★ 9 cited

Detection of strong light-matter interaction in a single nano-cavity with a thermal transducer

Mario Malerba, Simone Sotgiu, Andrea Schirato +11

Recently, the concept of strong light-matter coupling has been demonstrated in semiconductor structures, and it is poised to revolutionize the design and implementation of componen…

physics.optics2021

Second harmonic generation in germanium quantum wells for nonlinear silicon photonics

Jacopo Frigerio, Chiara Ciano, Joel Kuttruff +12

Second-harmonic generation (SHG) is a direct measure of the strength of second-order nonlinear optical effects, which also include frequency mixing and parametric oscillations. Nat…

physics.optics2021★ 22 cited

THz intersubband electroluminescence from n-type Ge/SiGe quantum cascade structures

David Stark, Muhammad Mirza, Luca Persichetti +15

We report electroluminescence originating from L-valley transitions in n-type Ge/SiGe quantum cascade structures centered at 3.4 and 4.9 THz with a line broadenin…

physics.optics2020★ 32 cited

Free electron nonlinearities in heavily doped semiconductors plasmonics

Federico De Luca, Michele Ortolani, Cristian Ciracì

Heavily doped semiconductors have emerged as tunable low-loss plasmonic materials at mid-infrared frequencies. In this article we investigate nonlinear optical phenomena associated…

physics.optics2009

Characterization of dipolar current-based metamaterials showing a single resonance in the terahertz spectrum

C. Rizza, E. Palange, P. Carelli +4

We will report on the electromagnetic response due to induced dipolar currents in metamaterials of 2-dimensional array of metallic elements. Used as frequency selectors, the metama…

physics.optics2009★ 1 cited

Substrateless metamaterials at mid-infrared frequencies

F. Mattioli, M. Ortolani, O. Limaj +2

We report on the fabrication and mid-infrared transmission properties of free-standing thin metal films, periodically patterned with holes at periods down to 2 microns and area of…