Prof. Dr. Luca Razzari
Professor Razzari is interested in investigating the fundamental aspects of radiation-matter interactions on unusual temporal and spatial scales, in view of creating novel tools for photonic applications.
To this end, he exploits the ultrafast (down to few femtoseconds) and ultra-broadband (from ultraviolet to terahertz) nature of nanoplasmonics, which studies the interaction of electromagnetic fields with metallic nanostructures. Nanoplasmonics is able to bring light down to the nanoscale, strongly enhancing the local electric field, and thus carries great promises for an effective miniaturization of photonic technologies and for the on-chip integration of linear and nonlinear optical functions with state-of-the-art electronic circuits.
Professor Razzari also employs ultrafast terahertz pulses (1 THz corresponds to 1 picosecond in time and 300 microns in wavelength) for spectroscopic applications. These studies aim at exploring the intriguing physics at the border between the quasi-static (classical) approximation for the terahertz field and its quantum counterpart, which considers the terahertz wave being composed of photons.
Terahertz radiation oscillates at frequencies that ideally bridge the gap between the operating regime of electronics and the realm of photonics.
Prof. Razzari’s main research interests include:
- Light-matter interactions
- Nanophotonics / Nanoplasmonics
- Nonlinear Optics
- Terahertz Science and technology
- Ultrafast Physics
Prof. Razzari’s laboratory has the following key software/measurement capabilities:
- advanced simulation software packages matched with 3 computational workstations for design and analysis of photonic devices
- an amplified femtosecond laser source coupled to systems for the generation of infrared and THz pulses
- equipment for frequency-domain infrared/THz spectroscopy as well as for time-domain THz studies
- general tools for the characterization of optical/optoelectronic components