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pro vyhledávání: '"Sciamanna, Marc"'
We experimentally report on the detection of chaos from a free-running commercial broad-area VCSEL without the need for external perturbation such as optical feedback, injection or current modulation. The evolution of nonlinear dynamics leading to ch
Externí odkaz:
http://arxiv.org/abs/2410.20122
The dynamics of a single-mode semiconductor laser induced by the optical injection of a frequency comb are analyzed through the lens of complexity. In particular, the focus is dynamics outside the injection-locking region. Permutation entropy (P.E.)
Externí odkaz:
http://arxiv.org/abs/2408.06861
We numerically investigate a time-delayed reservoir computer architecture based on a single mode laser diode with optical injection and optical feedback. Through a high-resolution parametric analysis, we reveal unforeseen regions of high dynamical co
Externí odkaz:
http://arxiv.org/abs/2405.07756
Publikováno v:
Vol. 49, Issue 10, pp. 2613-2616 (2024)
We experimentally study the synchronization of chaos generated by semiconductor lasers in a cascade injection configuration, i.e., a tunable master laser is used to generate chaos by optical injection in a transmitter laser that injects light into a
Externí odkaz:
http://arxiv.org/abs/2403.07474
Autor:
Bittner, Stefan, Sciamanna, Marc
Publikováno v:
APL Phot. 7, 126108 (2022)
Lasers can exhibit nonlinear and chaotic dynamics driven by the interaction of multiple lasing modes, and investigating the different scenarios of mode competition and bifurcations of their dynamics is of great interest on a fundamental level as well
Externí odkaz:
http://arxiv.org/abs/2203.14736
Autor:
Yoo, Myoung-Woo, Rontani, Damien, Létang, Jérémy, Petit-Watelot, Sébastien, Devolder, Thibaut, Sciamanna, Marc, Bouzehouane, Karim, Cros, Vincent, Kim, Joo-Von
Harnessing chaos or intrinsic nonlinear behaviours from dynamical systems is a promising avenue for the development of unconventional information processing technologies. However, the exploitation of such features in spintronic devices has not been a
Externí odkaz:
http://arxiv.org/abs/1909.08587
Autor:
Devolder, Thibaut, Rontani, Damien, Petit-Watelot, Sébastien, Bouzehouane, Karim, Andrieu, Stéphane, Létang, Jérémy, Yoo, Myoung-Woo, Adam, Jean-Paul, Chappert, Claude, Girod, Stéphanie, Cros, Vincent, Sciamanna, Marc, Kim, Joo-Von
Publikováno v:
Phys. Rev. Lett. 123, 147701 (2019)
We present an experimental study of spin-torque driven vortex self-oscillations in magnetic nanocontacts. We find that above a certain threshold in applied currents, the vortex gyration around the nanocontact is modulated by relaxation oscillations,
Externí odkaz:
http://arxiv.org/abs/1903.00921
Akademický článek
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A theoretical study of delayed feedback in spin-torque nano-oscillators is presented. A macrospin geometry is considered, where self-sustained oscillations are made possible by spin transfer torques associated with spin currents flowing perpendicular
Externí odkaz:
http://arxiv.org/abs/1709.04310
Autor:
Sciamanna, Marc, Shore, K. Alan
Publikováno v:
Nature Photonics, vol. 9, pp 151-162 (2015)
An overview of chaos in laser diodes is provided which surveys experimental achievements in the area and explains the theory behind the phenomenon. The fundamental physics underpinning this behaviour and also the opportunities for harnessing laser di
Externí odkaz:
http://arxiv.org/abs/1507.08825