Meno rifiuti nel 2020 causa covid ma Tari in aumento, il paradosso

Incentivi auto, arriva l'ok dal Senato: ecco i modelli che si possono acquistareConfindustria annuncia: nessuna ripresa economica prima di giugnoIstat, il carrello della spesa di aprile ancora in calo del meno 0,4%

Reddito di emergenza da giugno a settembre 2021: come e quando presentare domandaI chip fotonici che insegnano alla luce ad evitare gli ostacoli di Askanews   07-12-2023 - 12:35 Link copiato Loading... 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background-color: #fff; border-radius: 0.5rem; box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12); font-family: sans-serif; content: 'Loading...'; display: flex !important; font-size: 13px; font-weight: bold; line-height: 1; justify-content: center; min-height: 50px; text-transform: uppercase;}#speakup-player:empty{ display: block;} Milano, 7 dic. (askanews) - Chip fotonici in grado di calcolare, e generare, la forma migliore dei fasci di luce per attraversare un ambiente ostile, variabile o non conosciuto. Sono stati realizzati dal Politecnico di Milano, grazie a uno studio condotto insieme con la Scuola Superiore Sant'Anna di Pisa, all'Università di Glasgow e all'Università di Stanford, e pubblicato dalla prestigiosa rivista Nature Photonics. Ma perché calcolare la forma della luce è così fondamentale e rende questi chip tanto innovativi? Francesco Morichetti, responsabile del Photonoic devices Lab del Polimi."Viviamo in un mondo wireless, tutti i dispositivi sono senza fili e vorremmo che scambiassero la maggior quantità di dati, il wireless ottico è in grado di supportare una quantità di dati 100, 1000 volte maggiore del wirelss ordinario, la luce è molto più sensibile a condizioni ambientali quindi se vogliamo avere collegamenti wireless ottici a banda larghissima dobbiamo essere in grado di modificare e adattare al meglio la forma e le caratteristiche della luce". Queste tecnologie permettono di manipolare in modo estremamente efficiente una enorme quantità di dati, fondamentale in moltissime applicazioni: telecomunicazioni, intelligenza artificiale e localizzazione, ad esempio per guida autonoma, droni, sistemi che richiedono grandi capacità di calcolo come i computer quantistici.Ma cosa aspettarsi in futuro dai dispositivi fotonici? Andrea Melloni, direttore di Polifab, centro di micro e nanotecnologie del Politecnico."Continueranno in questa direzione, ma stanno penetrando in tutte le altre applicazioni: oggi troviamo dispositivi fotonici per biomedicale, sensoristica, finanza, agricoltura e molti altri settori: si ha un vantaggio in termini di potenza di calcolo, capacità di trasmettere informazioni ad altissima banda, e la possibiltià di farlo consumando poca energia elettrica, che oggi è fondamentale".La progettazione di questi chip, possibile grazie a finanziamenti di aziende, Ue e Pnrr, è fatta internamente. I chip in tecnologia di silicio standard vengono fabbricati in una fonderia e poi tutta la parte di assemblaggio viene fatta su misura nella camera bianca del Politecnico di Milano. di Askanews   07-12-2023 - 12:35 Link copiato Commenti Leggi la Netiquette

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