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Content archived on 2024-06-18

Polaritonic TeraHertz Devices

Objective

THz band remains the last region of electromagnetic spectrum which does not have wide application in modern technology due to lack of solid state source of THz radiation: compact, reliable and scalable. Fundamental objection preventing creation of such source is small rate of spontaneous emission of the THz photons: according to the Fermi Golden rule this rate is about tens of inverse milliseconds, while lifetime of the charge carrier in the solid typically lies in picoseconds range due to the efficient interaction with phonons. The rate of spontaneous emission of THz photons can be increased by application Purcell effect, but even in this
case cryogenic temperature is required for the operation of solid state THz devices. Further increase of emission rate can be achieved via bosonic stimulation, when THz radiative transition occurs into the quantum state, in which condensate of bosons is formed. Such situation can be realized for transition between upper and lower polariton state in semiconductor
microcavity in polariton lasing regime, in the case when parity excitonic parts of upper and lower polariton states is made different. In this case emission of THz radiation characterized by substantial quantum efficiency can be achieved even at room temperature. Further, pronounced non-linear properties of polaritonic systems lead to various non-linear effects in
coupled system of polaritons and THz photons, what open the way for development of novel class of solid state devices, like compact THz short pulse generators, THz switch, and THz detectors.

Fields of science (EuroSciVoc)

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Topic(s)

Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

FP7-PEOPLE-2011-IRSES
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Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

MC-IRSES - International research staff exchange scheme (IRSES)

Coordinator

UNIVERSITY OF DURHAM
EU contribution
€ 152 000,00
Address
STOCKTON ROAD THE PALATINE CENTRE
DH1 3LE DURHAM
United Kingdom

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Region
North East (England) Tees Valley and Durham Durham CC
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

No data

Participants (5)

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