Nanobump microresonator

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We introduce a whispering gallery-mode (WGM) nanobump microresonator (NBMR) and develop its theory. This microresonator is formed by an asymmetric nanoscale-high deformation of the translationally symmetric optical fiber surface, which is employed in fabrication of surface nanoscale axial photonics (SNAP) structures. It is shown that an NBMR causes strong localization of WGMs near a closed ray (geodesic) at the fiber surface, provided that this ray is stable. Our theory explains and describes the experimentally observed localization of WGMs by NBMRs and is useful for the design and fabrication of SNAP devices.

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Original languageEnglish
Pages (from-to)1430-1433
Number of pages4
JournalOptics Letters
Issue number7
Early online date25 Mar 2015
Publication statusPublished - 1 Apr 2015


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