Spontaneous emission from semiconductor nanocrystals in coupled spherical microcavities | Zendy

Rakovich Yu. P. | Zendy; Gerlach M. | Zendy; Bradley A. L. | Zendy; Donegan J.F. | Zendy; Boland J. | Zendy; Connolly T. | Zendy; Przyjalgowski M. | Zendy; Ryder A. | Zendy; Gaponik N. | Zendy; Rogach A. L. | Zendy

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Spontaneous emission from semiconductor nanocrystals in coupled spherical microcavities

Author(s) -

Rakovich Yu. P.,

Gerlach M.,

Bradley A. L.,

Donegan J.F.,

Boland J.,

Connolly T.,

Przyjalgowski M.,

Ryder A.,

Gaponik N.,

Rogach A. L.

Publication year - 2005

Publication title -

physica status solidi (c)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.21

H-Index - 46

eISSN - 1610-1642

pISSN - 1610-1634

DOI - 10.1002/pssc.200460351

Subject(s) - whispering gallery wave , nanocrystal , materials science , spontaneous emission , photonics , molecule , semiconductor , excitation , coupling (piping) , optoelectronics , laser , molecular physics , nanotechnology , chemistry , optics , physics , resonator , organic chemistry , quantum mechanics , metallurgy

We report on the coherent coupling of whispering gallery modes (WGM) in a photonic molecule formed from two melamine‐formaldehyde spherical microcavities coated with a thin shell of light‐emitting CdTe nanocrystals (NCs). Utilizing different excitation conditions the splitting of the WGM resonances originating from bonding and anti‐bonding branches of the photonic states is observed and fine structure consisting of very sharp peaks resulting from lifting of the WGM degeneracy has been detected. Time‐resolved measurements showed a slight increase in the spontaneous emission rate of NCs in a photonic molecule when compared to the spontaneous emission rate for NCs coating a single microsphere. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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