Planar photonic crystals biosensor applications of TiO2

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Erdiven U., Karaaslan M., Unal E., KARADAĞ F.

Acta Physica Polonica A, cilt.122, sa.4, ss.732-736, 2012 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 122 Sayı: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.12693/aphyspola.122.732
  • Dergi Adı: Acta Physica Polonica A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.732-736
  • Hatay Mustafa Kemal Üniversitesi Adresli: Evet

Özet

We examine quality factor and sensitivity change depending on the resonant wavelength changing re- fractive index of surrounding liquid for TiO2 photonic crystal slab structure. Photonic crystal slab structure is used widely for biological materials such as proteins, antigens, DNA, cells, virus particles and bacteria. Mentioned photonic crystal slabs are usable with large-area biosensor designs. They permit direct access to externally incident optical beams in a microfluidic device. Model calculations are based on two-dimensional periodic crystal structure. Photonic crystal slab consists of a square lattice of air holes in a finite-thickness dielec- tric slab. The time domain simulations were implemented by software MIT Electromagnetic Equation Propagation.