Convocazioni seminari Dr.ssa Leonetta Baldassarre, Dr. Angelo Esposito
venerdì 11 marzo si terranno i seguenti seminari cui si potrà assistere collegandosi al link zoom:
https://uniroma1.zoom.us/j/81713438539?pwd=a25Hck53d2Q1cDlXbXhEcm42UTNtdz09
ID riunione: 817 1343 8539
Passcode: 754061
Ore 15.00
Dr.ssa Leonetta Baldassarre
Vincitrice procedura valutativa ex. art. 24 c. 5 L.240/10 FIS/03 02/B1
Title: Infrared spectroscopy beyond diffraction limit: from plasmonics to semiconductor heterostructures and 2D materials
Abstract: The confinement of electromagnetic radiation in deeply subwavelength regions can result in an increase of the associated electric field strength, which in turn can lead to enhanced light-matter interaction and therefore in enhanced emission and absorption probabilities. Several photonic and plasmonic approaches can be developed to confine electromagnetic field either to measure few molecules in a sensing experiment or to probe intersubband transitions in SiGe quantum wells.
In the first part of the seminar, I will focus on the study and development of plasmonic nanostructures or photonic crystals for molecular sensing in the mid-infrared.
I will then move to the study of intersubband transitions in semiconductor heterostructures placed in waveguides. I will discuss progresses we have obtained towards the development of a Si-compatible THz emitter, before discussing latest experiments on van der Waals materials
Ore 15.30
Dr. Angelo Esposito
Vincitore procedura selettiva per RTDB FIS02 02A2
Title: Phenomenology between high and low energy physics
Abstract: I will give a general description of my main research interests, in particular discussing phenomenological problems that lie in between high and low energy physics. Specifically, I will discuss three topics that a related to systems at very different scales: the nature of exotic hadrons in low energy QCD, the effective field theory description of phases of matter, and the study of the non-gaussianities of the primordial Universe.
