Physics – Optics
Scientific paper
2004-01-22
Physics
Optics
Scientific paper
10.1364/OL.29.001500
Micron-scale optical cavities are produced using a combination of template sphere self-assembly and electrochemical growth. Transmission measurements of the tunable microcavities show sharp resonant modes with a Q-factor>300, and 25-fold local enhancement of light intensity. The presence of transverse optical modes confirms the lateral confinement of photons. Calculations show sub-micron mode volumes are feasible. The small mode volume of these microcavities promises to lead to a wide range of applications in microlasers, atom optics, quantum information, biophotonics and single molecule detection.
Abdelsalam M. E.
Bartlett P. N.
Baumberg Jeremy J.
Besombes Lucien
Kelf T.
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