Polarization behavior of elastic scattering from a silicon microsphere coupled to an optical fiber

Murib M. S., Yuce E., Gürlü O., Serpenguzel A.

PHOTONICS RESEARCH, vol.2, no.2, pp.45-50, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2 Issue: 2
  • Publication Date: 2014
  • Doi Number: 10.1364/prj.2.000045
  • Journal Name: PHOTONICS RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.45-50
  • Middle East Technical University Affiliated: No

Abstract

The polarization behavior of elastic scattering at 1473 nm is analyzed from a silicon microsphere on an optical fiber half-coupler. The 0.27 nm angular mode spacing of the resonances correlates well with the optical size of the silicon sphere. The spectral linewidths of the resonances are on the order of 10(-3) nm, which corresponds to quality factors on the order of 10(6). The transverse magnetically polarized elastic scattering signal has higher resonance to modulation depth and background ratio than the transverse electrically polarized elastic scattering signal and is suitable for high-resolution optical filtering applications such as optical monitoring and sensing. (C) 2014 Chinese Laser Press