Optical levitation of a microdroplet containing a single quantum dot

Optical levitation of a microdroplet containing a single quantum dot

We demonstrate the optical levitation or trapping in helium gas of a single quantum dot (QD) within a liquid droplet. Bright single photon emission from the levitated QD in the droplet was observed for more than 200 s. The observed photon count rates are consistent with the value theoretically estim...

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Veröffentlicht in:Optics letters 2015-03, Vol.40 (6), p.906-909
Hauptverfasser: Minowa, Yosuke, Kawai, Ryoichi, Ashida, Masaaki
Format: Artikel
Sprache:eng
Schlagworte:
Counting
Cross sections
Droplets
Lasers
Levitation
Liquids
Optical Tweezers
Photon emission
Photons
Quantum Dots
Scattering, Radiation
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Zusammenfassung:We demonstrate the optical levitation or trapping in helium gas of a single quantum dot (QD) within a liquid droplet. Bright single photon emission from the levitated QD in the droplet was observed for more than 200 s. The observed photon count rates are consistent with the value theoretically estimated from the two-photon-action cross section. This Letter presents the realization of an optically levitated solid-state quantum emitter.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.000906