An “in-fiber” Whispering-Gallery-Mode bi-sphere resonator, sensitive to nanometric displacements

An “in-fiber” Whispering-Gallery-Mode bi-sphere resonator, sensitive to nanometric displacements

A double-cavity, Whispering-Gallery-Mode (WGM) resonator, composed of two polystyrene microspheres, is formed inside the capillary of a microstructured optical fiber. The spectra are compared with the corresponding WGM patterns of the isolated microspheres. We collect scattering spectra from the con...

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Veröffentlicht in:Applied physics. B, Lasers and optics Lasers and optics, 2018, Vol.124 (1), p.1-8, Article 1
Hauptverfasser: Kosma, Kyriaki, Schuster, Kay, Kobelke, Jens, Pissadakis, Stavros
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Beads
Capillary optics
Cavity resonators
Engineering
Lasers
Microspheres
Optical design
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Polystyrene resins
Quantum Optics
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Beschreibung
Zusammenfassung:A double-cavity, Whispering-Gallery-Mode (WGM) resonator, composed of two polystyrene microspheres, is formed inside the capillary of a microstructured optical fiber. The spectra are compared with the corresponding WGM patterns of the isolated microspheres. We collect scattering spectra from the contact area between the two beads, as the spacing between them is varied, and the evolution of the modes with sphere separation is discussed. Potential applications of the presented optical design are also proposed.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-017-6866-9