Research output: Contribution to journal › Article › peer-review
Original language | English |
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Pages (from-to) | L21-L24 |
Number of pages | 4 |
Journal | Semiconductor science and technology |
Volume | 21 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2006 |
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 rim. Theoretical modelling gives a close agreement with the data for angular modes corresponding to l similar to 120. This work demonstrates the potential of narrow-bandgap II-VI semiconductor nanocrystals for use in a wide range of telecommunications-window photonics applications.
ID: 1513827