Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Pezzoli, Fabio"'
We design germanium-based higher-order topological cavities for terahertz applications by breaking the symmetry of a two-dimensional photonic crystal following the Su-Schrieffer-Heeger model. Calculations demonstrate the parity inversion of the elect
Externí odkaz:
http://arxiv.org/abs/2402.15622
Publikováno v:
In Materials Science in Semiconductor Processing September 2024 180
Autor:
Vitiello, Elisa, Rossi, Simone, Broderick, Christopher A., Gravina, Giorgio, Balocchi, Andrea, Marie, Xavier, O'Reilly, Eoin P., Myronov, Maksym, Pezzoli, Fabio
Publikováno v:
Phys. Rev. Applied 14, 064068 (2020)
We present a magneto-optical study of the carrier dynamics in compressively strained Ge(1-x)Sn(x) films having Sn compositions up to 10% epitaxially grown on blanket Ge on Si (001) virtual substrates. We leverage the Hanle effect under steady-state e
Externí odkaz:
http://arxiv.org/abs/2009.01087
Akademický článek
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Akademický článek
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Autor:
De Cesari, Sebastiano, Balocchi, Andrea, Vitiello, Elisa, Jahandar, Pedram, Grilli, Emanuele, Amand, Thierry, Marie, Xavier, Myronov, Maksym, Pezzoli, Fabio
Publikováno v:
Phys. Rev. B 99, 035202 (2019)
Germanium-Tin is emerging as a material exhibiting excellent photonic properties. Here we demonstrate optical initialization and readout of spins in this intriguing group IV semiconductor alloy and report on spin quantum beats between Zeeman-split le
Externí odkaz:
http://arxiv.org/abs/1710.05792
Autor:
De Cesari, Sebastiano, Bergamaschini, Roberto, Vitiello, Elisa, Giorgioni, Anna, Pezzoli, Fabio
Light polarization can conveniently encode information. Yet, the ability to steer polarized optical fields is notably demanding but crucial to develop practical methods for data encryption and to gather fundamental insights into light-matter interact
Externí odkaz:
http://arxiv.org/abs/1710.03166
Publikováno v:
ACS Photonics 3, 2004-2009 (2016)
GeSn epitaxial heterostructures are emerging as prominent candidates for the monolithic integration of light sources on Si substrates. Here we propose a judicious explanation for their temperature-dependent photoluminescence (PL) that is based upon t
Externí odkaz:
http://arxiv.org/abs/1609.00542
Autor:
Giorgioni, Anna, Paleari, Stefano, Cecchi, Stefano, Grilli, Emanuele, Isella, Giovanni, Jantsch, Wolfgang, Fanciulli, Marco, Pezzoli, Fabio
Publikováno v:
Nature Communications 7, 13886 (2016)
Control of electron spin coherence via external fields is fundamental in spintronics. Its implementation demands a host material that accommodates the highly desirable but contrasting requirements of spin robustness to relaxation mechanisms and sizea
Externí odkaz:
http://arxiv.org/abs/1603.08783
We have investigated optical orientation in the vicinity of the direct gap of bulk germanium. The electron spin polarization is studied via polarization-resolved photoluminescence excitation spectroscopy unfolding the interplay between doping and ult
Externí odkaz:
http://arxiv.org/abs/1504.07013