Dynamical electrical tuning of a silicon microsphere: used for spectral mapping of the optical resonances

E. Yuce, O. Gurlu, Graham J. Thursby, Ali Serpengüzel

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2 Citations (Scopus)


In this work, electrical square pulses at various duty cycles are applied to a silicon microsphere resonator in order to continuously tune the refractive index of a silicon microsphere and to map the optical resonance in the time domain. A continuous-wave semiconductor diode laser operating in the L-band is used for the excitation of the silicon microsphere optical resonances. The 90° transverse magnetically polarized elastic scattering signal is used to monitor the silicon microsphere resonances. We show that at a constant input laser wavelength, up to five high-quality-factor optical resonances can be scanned by dynamical electrical tuning of the silicon microsphere cavity.
Original languageEnglish
Pages (from-to)6181-6184
Number of pages4
JournalApplied Optics
Issue number27
Publication statusPublished - 12 Sept 2014


  • IR-94928
  • METIS-305469

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