Dr. Sofia Pazzagli

Dr. Sofia Pazzagli forscht an integrierten Nanophotonik-Plattformen, insbesondere an Aluminium-Gallium-Nitrid (AlGaN) auf Aluminium-Nitrid (AlN) als neuem Materialsystem für nichtlineare optische Bauelemente auf dem Chip. Ihr aktueller Fokus liegt auf der Entwicklung und Charakterisierung von AlGaN-basierten photonischen Komponenten wie Ringreso­natoren und Kopplern, die sich durch breite spektrale Transparenz, starke Nichtlinearität und elektro-optische Modulierbarkeit auszeichnen. Diese Plattform ermöglicht die Realisierung von rekonfigurierbaren On-Chip-Systemen für Quantenoptik-Anwendungen und könnte für Telekommunikation, Quantentechnologien und Sensorik relevant werden. Parallel arbeitet sie an der europäischen Koordination zur Implementierung personalisierter Krebsmedizin, was auf eine Beteiligung an Wissenstransfer und Politikgestaltung hindeutet.

🔒 Das System hat 187 mögliche Industrie-Partner gefunden — Firmen, Scores und Begründungen sind nur für eingeloggte Nutzer:innen sichtbar. Anmelden

• GREENing the future of quantum optics and integrated nanoPHOtoNics (QO-IN), one lab at the time

  Quelle ↗

  Förderer: Volkswagen Stiftung Zeitraum: 11/2025 - 10/2028 Projektleitung: Prof. Dr. Arno Rauschenbeutel, Dr. Sofia Pazzagli

• Self-Assembled Nanocrystals of Polycyclic Aromatic Hydrocarbons Show Photostable Single-Photon Emission

  2018

  ACS Nano · DOI

  Quantum technologies could largely benefit from the control of quantum emitters in sub-micrometric size crystals. These are naturally prone to integration in hybrid devices, including heterostructures and complex photonic devices. Currently available quantum emitters in nanocrystals suffer from spectral instability, preventing their use as single-photon sources for most quantum optics operations. In this work we report on the performances of single-photon emission from organic nanocrystals (average size of hundreds of nm), made of anthracene (Ac) and doped with dibenzoterrylene (DBT) molecules. The source has hours-long photostability with respect to frequency and intensity, both at room and at cryogenic temperature. When cooled to 3 K, the 00-zero phonon line shows linewidth values (50 MHz) close to the lifetime limit. Such optical properties in a nanocrystalline environment recommend the proposed organic nanocrystals as single-photon sources for integrated photonic quantum technologies.

• Electrical Control of Lifetime-Limited Quantum Emitters Using 2D Materials

  2019

  Nano Letters · DOI

  Solid-state quantum emitters are a mainstay of quantum nanophotonics as integrated single-photon sources (SPS) and optical nanoprobes. Integrating such emitters with active nanophotonic elements is desirable in order to attain efficient control of their optical properties, but it typically degrades the photostability of the emitter itself. Here, we demonstrate a tunable hybrid device that integrates state of the art lifetime-limited single emitters (line width ∼40 MHz) and 2D materials at subwavelength separation without degradation of the emission properties. Our device's nanoscale dimensions enable ultrabroadband tuning (tuning range >400 GHz) and fast modulation (frequency ∼100 MHz) of the emission energy, which renders it an integrated, ultracompact tunable SPS. Conversely, this offers a novel approach to optical sensing of 2D material properties using a single emitter as a nanoprobe.