Whispering gallery mode emission at telecommunications-window wavelengths using PbSe nanocrystals attached to photonic beads

C. E. Finlayson; P. J.A. Sazio; R. Sanchez-Martin; M. Bradley; T. A. Kelf; Jeremy J. Baumberg

doi:10.1088/0268-1242/21/3/L01

Whispering gallery mode emission at telecommunications-window wavelengths using PbSe nanocrystals attached to photonic beads

C. E. Finlayson^*, P. J.A. Sazio, R. Sanchez-Martin, M. Bradley, T. A. Kelf, Jeremy J. Baumberg

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We report the selective chemical attachment of infrared emitting PbSe nanocrystal quantum dots onto micron-scale glass photonic beads. Upon optical excitation, photoluminescence from the shell of nanocrystals is seen to couple into the high-Q 'whispering gallery' modes of the bead via the evanescent optical field, resulting in a series of sharp peaks being observed at wavelengths of around 1550 nm. Theoretical modelling gives a close agreement with the data for angular modes corresponding to l ∼ 120. This work demonstrates the potential of narrow-bandgap II-VI semiconductor nanocrystals for use in a wide range of telecommunications-window photonics applications.

Original language	English
Pages (from-to)	L21-L24
Journal	Semiconductor Science and Technology
Volume	21
Issue number	3
DOIs	https://doi.org/10.1088/0268-1242/21/3/L01
Publication status	Published - 01 Mar 2006

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title = "Whispering gallery mode emission at telecommunications-window wavelengths using PbSe nanocrystals attached to photonic beads",

abstract = "We report the selective chemical attachment of infrared emitting PbSe nanocrystal quantum dots onto micron-scale glass photonic beads. Upon optical excitation, photoluminescence from the shell of nanocrystals is seen to couple into the high-Q 'whispering gallery' modes of the bead via the evanescent optical field, resulting in a series of sharp peaks being observed at wavelengths of around 1550 nm. Theoretical modelling gives a close agreement with the data for angular modes corresponding to l ∼ 120. This work demonstrates the potential of narrow-bandgap II-VI semiconductor nanocrystals for use in a wide range of telecommunications-window photonics applications.",

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AU - Finlayson, C. E.

AU - Sazio, P. J.A.

AU - Sanchez-Martin, R.

AU - Bradley, M.

AU - Kelf, T. A.

AU - Baumberg, Jeremy J.

PY - 2006/3/1

Y1 - 2006/3/1

N2 - We report the selective chemical attachment of infrared emitting PbSe nanocrystal quantum dots onto micron-scale glass photonic beads. Upon optical excitation, photoluminescence from the shell of nanocrystals is seen to couple into the high-Q 'whispering gallery' modes of the bead via the evanescent optical field, resulting in a series of sharp peaks being observed at wavelengths of around 1550 nm. Theoretical modelling gives a close agreement with the data for angular modes corresponding to l ∼ 120. This work demonstrates the potential of narrow-bandgap II-VI semiconductor nanocrystals for use in a wide range of telecommunications-window photonics applications.

AB - We report the selective chemical attachment of infrared emitting PbSe nanocrystal quantum dots onto micron-scale glass photonic beads. Upon optical excitation, photoluminescence from the shell of nanocrystals is seen to couple into the high-Q 'whispering gallery' modes of the bead via the evanescent optical field, resulting in a series of sharp peaks being observed at wavelengths of around 1550 nm. Theoretical modelling gives a close agreement with the data for angular modes corresponding to l ∼ 120. This work demonstrates the potential of narrow-bandgap II-VI semiconductor nanocrystals for use in a wide range of telecommunications-window photonics applications.

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SN - 0268-1242

VL - 21

SP - L21-L24

JO - Semiconductor Science and Technology

JF - Semiconductor Science and Technology

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ER -

Whispering gallery mode emission at telecommunications-window wavelengths using PbSe nanocrystals attached to photonic beads

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