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Journal Article

Quantum dot microdrop laser

MPS-Authors
/persons/resource/persons201177

Schaefer,  J.
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201132

Mondia,  J. P.
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201194

Sharma,  R.
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons60677

Lu,  Z. H.
Max Planck Fellow Group, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201228

Wang,  L. J.
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Schaefer, J., Mondia, J. P., Sharma, R., Lu, Z. H., Susha, A. S., Rogach, A. L., et al. (2008). Quantum dot microdrop laser. NANO LETTERS, 8(6), 1709-1712. doi:10.1021/nl080661a.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6C9C-B
Abstract
We report single-mode and multimode lasing from isolated spherical liquid microcavities containing CdSe/ZnS nanocrystal quantum dots. Lasing is observed at densities more than 2 orders of magnitude lower than previously demonstrated or theoretically predicted, assuming a uniform nanocrystal quantum dot distribution. Charged droplets, between 10 and 40 mu m in size, are electrodynamically levitated and optically pumped. Substantial laser signals at low thresholds are measured from the directional emission normal to the pump beam, owing to the high Q cavity modes.