Emission spectrum and spectral diffusion of a single CdSe/ZnS nanocrystal probed by photon-correlation Fourier spectroscopy (PCFS)

Author

Coolen, Laurent ; Spinicelli, Piernicola ; Hermier, Jean-Pierre

Author_Institution

Inst. des Nanosci. de Paris, Univ. Pierre et Marie Curie, Paris, France

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

Colloidal nanocrystals are very bright stable fluorophores obtained by chemical synthesis. By use of a confocal microscope, they can be studied at the single-emitter level. This reveals some properties which were hidden in ensemble measurements such as homogeneous emission linewidth. However, as nanocrystal emission exhibits strong fast spectral diffusion, the emission measured on a nanocrystal is still broadened by time averaging over the duration of one measurement (typically 100 ms) and the measured linewidths are typically a few

Keywords

Fourier transform spectroscopy; II-VI semiconductors; cadmium compounds; colloidal crystals; diffusion; nanostructured materials; optical correlation; zinc compounds; CdSe-ZnS; colloidal nanocrystals; confocal microscope; emission spectrum; photon-correlation Fourier spectroscopy; single-emitter level; spectral diffusion; Chemicals; Fluctuations; Microscopy; Nanocrystals; Optimized production technology; Phonons; Photonics; Spectroscopy; Time measurement; Zinc compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5196289

Filename

5196289