T
Tommaso Pregnolato
Researcher at University of Copenhagen
Publications - 26
Citations - 1526
Tommaso Pregnolato is an academic researcher from University of Copenhagen. The author has contributed to research in topics: Quantum dot & Photon. The author has an hindex of 13, co-authored 24 publications receiving 1188 citations. Previous affiliations of Tommaso Pregnolato include Ca' Foscari University of Venice.
Papers
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Journal ArticleDOI
Deterministic photon–emitter coupling in chiral photonic circuits
Immo Söllner,Sahand Mahmoodian,Sofie Lindskov Hansen,Leonardo Midolo,Alisa Javadi,Gabija Kiršanskė,Tommaso Pregnolato,Haitham A. R. El-Ella,Eunhye Lee,Jin Dong Song,Søren Stobbe,Peter Lodahl +11 more
TL;DR: It is shown that the helicity of the optical transition of a quantum emitter determines the direction of single-photon emission in a specially engineered photonic-crystal waveguide.
Journal ArticleDOI
Single-photon non-linear optics with a quantum dot in a waveguide.
Alisa Javadi,Immo Söllner,M. Arcari,S. Lindskov Hansen,Leonardo Midolo,Sahand Mahmoodian,Gabija Kiršanskė,Tommaso Pregnolato,Eun Ha Lee,Jin Dong Song,Søren Stobbe,Peter Lodahl +11 more
TL;DR: It is shown that a single quantum dot in a photonic-crystal waveguide can be used as a giant non-linearity sensitive at the single-photon level and paves the way to scalable waveguide-based photonic quantum-computing architectures.
Journal ArticleDOI
Indistinguishable and efficient single photons from a quantum dot in a planar nanobeam waveguide
Gabija Kiršanskė,Henri Thyrrestrup,Raphaël S. Daveau,Chris L. Dreeßen,Tommaso Pregnolato,Leonardo Midolo,Petru Tighineanu,Alisa Javadi,Søren Stobbe,Rüdiger Schott,Arne Ludwig,Andreas D. Wieck,Suk In Park,Jin D. Song,Andreas V. Kuhlmann,Immo Söllner,Matthias C. Löbl,Richard J. Warburton,Peter Lodahl +18 more
TL;DR: In this paper, the authors achieved 94% indistinguishability of photons emitted from a nanoscale photonic waveguide under $p$-shell excitation, using self-assembled quantum dots.
Journal ArticleDOI
Efficient fiber-coupled single-photon source based on quantum dots in a photonic-crystal waveguide
Raphaël S. Daveau,Krishna C. Balram,Tommaso Pregnolato,Jin Liu,Eun Ha Lee,Jin D. Song,Varun B. Verma,Richard P. Mirin,Sae Woo Nam,Leonardo Midolo,Søren Stobbe,Kartik Srinivasan,Peter Lodahl +12 more
TL;DR: In this article, a fiber-coupled photonic-crystal waveguide (PCWG) single-photon source relying on evanescent coupling of the light field from a tapered outcoupler to an optical fiber is presented.
Posted Content
Efficient fiber-coupled single-photon source based on quantum dots in a photonic-crystal waveguide
Raphaël S. Daveau,Krishna C. Balram,Tommaso Pregnolato,Jin Liu,Eun Ha Lee,Jin D. Song,Varun B. Verma,Richard P. Mirin,Sae Woo Nam,Leonardo Midolo,Søren Stobbe,Kartik Srinivasan,Peter Lodahl +12 more
TL;DR: The applied out-coupling method is robust, stable over time, and broadband over several tens of nanometers, which makes it a highly promising pathway to increase the efficiency and reliability of planar chip-based single-photon sources.