Skip to main content
Przejdź do strony domowej Komisji Europejskiej (odnośnik otworzy się w nowym oknie)
polski pl
CORDIS - Wyniki badań wspieranych przez UE
CORDIS
Zawartość zarchiwizowana w dniu 2024-04-30

Quantum optics with high-q microsphere resonators

Cel



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.

Dziedzina nauki (EuroSciVoc)

Program(-y)

Temat(-y)

Zaproszenie do składania wniosków

Brak dostępnych danych

System finansowania

RGI - Research grants (individual fellowships)

Koordynator

ECOLE NORMALE SUPERIEURE
Wkład UE
Brak danych
Adres
24,Rue Lhomond 24
75231 PARIS
Francja
Koszt całkowity
Brak danych

Uczestnicy (1)