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Sound-Light Manipulation in the Terahertz

Sound-Light Manipulation in the Terahertz

Obiettivo

The interaction of electromagnetic radiation with the mechanical vibrations of solids affects and determines many different physical phenomena. At the microscopic level, scattering of light with phonon excitations is a well known process exploited in semiconductor devices like Raman amplifiers and acousto-optic modulators. At the macroscopic scale, the interaction is mediated by the radiation pressure and is raising considerable interest as a way to excite and control mechanical oscillators, allowing, for instance, the refrigeration of a macroscopic object near the quantum limit.
This rich physics has been mostly developed in the visible or near-infrared spectral ranges. The progress of quantum cascade technologies now offers a new device platform where to explore concepts for the reciprocal manipulation of light and vibrations with unprecedented possibilities. The accessible THz spectrum is in fact particularly intriguing. The wavevector of the electromagnetic field can be tuned to that of the vibration, be it a phonon or the oscillating mode of a macroscopic object, enhancing selectivity and strength of the interaction. The low radiation frequency then makes it technically feasible to optically couple mechanical elements at distances much smaller than the wavelength, allowing, for instance, to exploit optical forces between surface plasmon modes atop metallic membranes. Lastly, it is foreseeable to include mechanical oscillators within the laser cavities, thereby creating new laser dynamics driven by the radiation pressure, and developing opto-mechanical effects in an active device where they can be studied, and eventually controlled, through the laser emission.
SouL Man aims at establishing the field of THz opto-mechanics, relying on quantum cascade lasers for investigating phenomena and concepts available in this spectral range and in optically active systems, as wells as at using this knowledge to implement innovative device functionalities and applications.
Leaflet | Map data © OpenStreetMap contributors, Credit: EC-GISCO, © EuroGeographics for the administrative boundaries

Ricercatore principale

Alessandro Tredicucci (Dr.)

Istituzione ospitante

UNIVERSITA DI PISA

Indirizzo

Lungarno Pacinotti 43/44
56126 Pisa

Italia

Tipo di attività

Higher or Secondary Education Establishments

Contributo UE

€ 288 594

Ricercatore principale

Alessandro Tredicucci (Dr.)

Contatto amministrativo

Sandra Masi (Dr.)

Beneficiari (3)

Classifica in ordine alfabetico

Classifica per Contributo UE

Espandi tutto

UNIVERSITA DI PISA

Italia

Contributo UE

€ 288 594

CONSIGLIO NAZIONALE DELLE RICERCHE

Italia

Contributo UE

€ 1 634 120

THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE

Regno Unito

Contributo UE

€ 257 592

Informazioni relative al progetto

ID dell’accordo di sovvenzione: 321122

Stato

Progetto concluso

  • Data di avvio

    1 Aprile 2013

  • Data di completamento

    31 Marzo 2018

Finanziato da:

FP7-IDEAS-ERC

  • Bilancio complessivo:

    € 2 180 306

  • Contributo UE

    € 2 180 306

Ospitato da:

UNIVERSITA DI PISA

Italia