Valerio Torrelli

Valerio Torrelli's picture

Ph.D. in Ingegneria Elettrica, Elettronica E Delle Comunicazioni , 37th cycle (2021-2024)

Ph.D. obtained in 2025

Dissertation:

Vertical-cavity surface-emitting lasers: computer-aided modal and polarization engineering

Tutors:

Francesco Bertazzi Pierluigi Debernardi Michele Goano

Research presentation:

Video presentation

Profile

Research topic

Multi-physics simulations of vertical-cavity surface-emitting lasers (VCSELs)

Research interests

Electronic devices: modeling and characterization
Micro- and nanotechnologies, devices, systems and applications
Modeling, simulation and CAD
Photonic devices and solar cells

Biography

I deal with multi-physics simulations of semiconductor-based opto-electronic devices using in-house TCAD (technology computer aided design) tools developed by our research group. Specifically, I deal with a specific type of laser called VCSEL (vertical-cavity surface-emitting laser), useful in many applications ranging from datacenters to gas sensing to face recognition.

To properly simulate such devices it is required to analyse them from the optical standpoint, from the electronic transport standpoint (drift-diffusion of electrons and holes) and from the thermal standpoint self-consistently. Furthermore, as technology advances, the tendency is to go towards lasers that are more and more nanostructured, thus non-negligible quantum effects can play a key role, to be included in the simulations and hardly treatable within commercial tools in a simple way.

All of these aspects, based on different physical mechanisms and on different spatial scales, represent a challenging task from the simulating point of view, which is one of the goals of our research group.

Teaching

Teachings

Bachelor of Science

  • Electronic Circuits. A.A. 2024/25, ELECTRONIC AND COMMUNICATIONS ENGINEERING (INGEGNERIA ELETTRONICA E DELLE COMUNICAZIONI). Collaboratore del corso
  • Dispositivi elettronici. A.A. 2024/25, INGEGNERIA FISICA. Collaboratore del corso

Publications

Works published during the Ph.D. View all publications in Porto@Iris

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