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- University College CorkIE88 papers
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5 papers · 1 filter
Wavelength switching dynamics of two-colour semiconductor lasers with optical injection and feedback
Simon Osborne, Patrycja Heinricht, Nicola Brandonisio +2
The wavelength switching dynamics of two-colour semiconductor lasers with optical injection and feedback are presented. These devices incorporate slotted regions etched into the la…
Semiconductor nanostructures engineering: Pyramidal quantum dots
E. Pelucchi, V. Dimastrodonato, L. O. Mereni +2
Pyramidal quantum dots (QDs) grown in inverted recesses have demonstrated over the years an extraordinary uniformity, high spectral purity and strong design versatility. We discuss…
Superspin Glass Mediated Giant Spontaneous Exchange Bias in a Nanocomposite of BiFeO-BiFeO
Tuhin Maity, Sudipta Goswami, Dipten Bhattacharya +1
We observe an enormous exchange bias (300-600 Oe) - measured in an unmagnetized state following zero-field cooling - in a nanocomposite of BiFeO ($…
Bistability and all-optical memory in dual-mode diode lasers with time-delayed optical feedback
N. Brandonisio, P. Heinricht, S. Osborne +2
A proposal for an all-optical memory based on a bistability of single-mode states in a dual-mode diode laser with time-delayed optical feedback is presented. The system is modeled…
Controllable selective exfoliation of high-quality graphene nanosheets and nanodots by ionic liquid assisted grinding
Nai Gui Shang, Pagona Papakonstantinou, Surbhi Sharma +6
Bulk quantities of graphene nanosheets and nanodots have been selectively fabricated by mechanical grinding exfoliation of natural graphite in a small quantity of ionic liquids. Th…