Optical coupling between a self-assembled microsphere grating and a rib waveguide

Tai C., Unal B., Wilkinson J. S., Ghanem M. A., Bartlett P. N.

Applied Physics Letters, cilt.84, sa.18, ss.3513-3515, 2004 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 84 Sayı: 18
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1063/1.1739275
  • Dergi Adı: Applied Physics Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3513-3515
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

The fabrication of a linear array of self-assembled polystyrene microspheres side coupled to a rib waveguide was discussed. A side-coupled rib waveguide microsphere grating was demonstrated using a simple low-cost self-assembly process. It was shown that the optical coupling between the lateral evanescent field and the periodically perturbed effective refractive index alongside the waveguide results in a transmission stopband at the Bragg wavelength. It was predicted that with improved sphere diameter control and more uniform assembly, a deeper and narrower response will be achieved.