Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Roasting affects quality and safety of hazelnuts: acrylamide, HMF and computer vision image analysis for their monitoring

100%

Arlorio M. , Coisson J. D. , Travaglia F. , Rinaldi M. , Fiore A. , Ferracane R. , Fogliano V.

tom 61

nr Suppl.1

Nanophotonic technologies for single-photon devices

84%

Gerardino A. , Francardi M. , Gaggero A. , Mattioli F. , Leoni R. , Balet L. , Chauvin N. , Marsili F. , Fiore A.

tom Vol. 18, No. 4

352-365

The progress in nanofabrication has made possible the realization of optic nanodevices able to handle single photons and to exploit the quantum nature of single-photon states. In particular, quantum cryptography (or more precisely quantum key distribution, QKD) allows unconditionally secure exchange of cryptographic keys by the transmission of optical pulses each containing no more than one photon. Additionally, the coherent control of excitonic and photonic qubits is a major step forward in the field of solid-state cavity quantum electrodynamics, with potential applications in quantum computing. Here, we describe devices for realization of single photon generation and detection based on high resolution technologies and their physical properties. Particular attention will be devoted to the description of single-quantum dot sources based on photonic crystal microcavites optically and electrically driven: the electrically driven devices is an important result towards the realization of single photon source 'on demand'. A new class of single photon detectors, based on superconducting nanowires, the superconducting single-photon detectors (SSPDs) are also introduced: the fabrication techniques and the design proposed to obtain large area coverage and photon number-resolving capability are described.

Optical gain saturation effects in InAs/GaAs self-assembled quantum dots

67%

Wasiak M. , Bugajski M. , Machowska-Podsiadło E. , Ochalski T. , Kątcki J. , Sarzała R. P. , Maćkowiak P. , Czyszanowski T. , Nakwaski W. , Chen J. X. , Oesterle U. , Fiore A. , Ilegems M.

tom Vol. 32, nr 3

291-299

An attempt has been made to understand electronic structure and optical (lasing) properties of self-assembled InAs/GaAs quantum dots (QD) and to describe saturation effects in QD levels population. The new, improved rate equation model has been developed. The impact of carrier relaxation and level depopulation inside quantum dots on lasing properties, in particular on gain depressing, is discusse.