Objective
Research objectives and content
Light is confined in 100 pim silica microspheres, by total internal reflection, in a wavelength-sized equatorial ring. Whispering-gallery modes (WGM) yield high-Q resonances (photon lifetime 1 ms). The electric field per photon is high and strong cavity effects are expected. This made it possible to realize low threshold microlaser with Nd-doped microspheres. Nd microlasers are now studied at low temperatures to achieve thresholdless regime with a few active ions. The quantum effects associated to the dynamics of these lasers will be studied in details. These experiments are expected to bring information on neodymium ions in silica. They are a step toward Cavity QED experiments with a few atoms coupled to a WGM.
At room temperature, up-conversion in erbium can provide green laser light with a pump diode laser at 800 nm. Laser action has not been demonstrated in silica fibers. Since microspheres are efficient laser cavities, Er-doped microspheres are tested for laser action.
Training content (objective, benefit and expected impact)
I will improve my knowledge on: - diode lasers, integrated optics, high efficiency detection, high resolution spectroscopy. - cryogenics. I also expect theoretical training in: - Quantum Optics - Cavity-QED in the optical domain
Links with industry/industrial relevance
- Patents on special microlasers (green microlasers) - Contacts with CNET-France Telecom.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology materials engineering fibers
- natural sciences physical sciences quantum physics quantum optics
- natural sciences physical sciences optics laser physics
- natural sciences physical sciences theoretical physics particle physics photons
- natural sciences physical sciences optics spectroscopy
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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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.
Coordinator
75231 PARIS
France
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.