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Optical Engineering

Whispering-gallery modes observed in elastic scattering from submerged high-refractive-index silica microspheres
Author(s): Hasan Yilmaz; Huzeyfe Yilmaz; Mehmet Selman Tamer; Oguzhan Gürlü; Mohammed Sharif Murib; Ali Serpengüzel
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Paper Abstract

The effect of the discrete values of the refractive index of the surrounding medium on the spectral behavior of the whispering-gallery modes (WGMs) in the elastic scattering spectra of high-refractive-index silica microspheres submerged in fluids, such as air, water, and glycerol, is studied. The elastic scattering spectral measurements, as well as the spectral autocorrelation analysis of these elastic scattering spectra show that the spectral-mode spacing, the spectral-mode density, and the spectral-mode definition of the WGMs decrease as the refractive index of the surrounding fluid increases. We believe that this work opens up the way for optofluidic applications of high-refractive-index silica microsphere-based guided wave optics.

Paper Details

Date Published: 27 December 2017
PDF: 6 pages
Opt. Eng. 56(12) 126110 doi: 10.1117/1.OE.56.12.126110
Published in: Optical Engineering Volume 56, Issue 12
Show Author Affiliations
Hasan Yilmaz, Koç Univ. (Turkey)
Huzeyfe Yilmaz, Koç Univ. (Turkey)
Mehmet Selman Tamer, Istanbul Technical Univ. (Turkey)
Oguzhan Gürlü, Istanbul Technical Univ. (Turkey)
Mohammed Sharif Murib, Koç Univ. (Turkey)
Ali Serpengüzel, Koç Univ. (Turkey)

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