Confocal microscopy and spectroscopy of nanocrystals on a high-Q microsphere 
resonator

Götzinger, Stephan; Menezes, L. de S.; Benson, O.; Talapin, D.V.; Gaponik, N.; Weller, H.; Rogach, A.L.; Sandoghdar, Vahid

doi:10.1088/1464-4266/6/2/005

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Confocal microscopy and spectroscopy of nanocrystals on a high-Q microsphere resonator

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Götzinger, S., Menezes, L. d. S., Benson, O., Talapin, D., Gaponik, N., Weller, H., et al. (2004). Confocal microscopy and spectroscopy of nanocrystals on a high-Q microsphere resonator. Journal of Optics B: Quantum and Semiclassical Optics, 6, 154-158. doi:10.1088/1464-4266/6/2/005.

Cite as: https://hdl.handle.net/21.11116/0000-0002-9BA6-4

Abstract

We report on experiments where we used a home-made confocal microscope to excite single nanocrystals on a high-Q microsphere resonator. In that way spectra of an individual quantum emitter could be recorded. The Q factor of the microspheres coated with nanocrystals was still up to 10(9). We also demonstrate the use of a prism coupler as a well-defined output port to collect the fluorescence of an ensemble of nanocrystals coupled to whispering-gallery modes.