Design and Analysis of Nanoantenna Arrays for Imaging and Sensing Applications at Optical Frequencies

Isiklar G., Cetin I. C., Algun M., ERGÜL Ö. S.

ADVANCED ELECTROMAGNETICS, cilt.8, sa.2, ss.18-27, 2019 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8 Sayı: 2
  • Basım Tarihi: 2019
  • Doi Numarası: 10.7716/aem.v8i2.1010
  • Dergi Adı: ADVANCED ELECTROMAGNETICS
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.18-27
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We present computational analysis of nanoantenna arrays for imaging and sensing applications at optical frequencies. Arrays of metallic nanoantennas are considered in an accurate simulation environment based on surface integral equations and the multilevel fast multipole algorithm developed for plasmonic structures. Near-zone responses of the designed arrays to nearby nanoparticles are investigated in detail to demonstrate the feasibility of detection. We show that both metallic and dielectric nanoparticles, even with subwavelength dimensions, can be detected.