Now showing items 1-6 of 6

    • Applications of plasmon enhanced emission and absorption 

      Ayas, Sencer (Bilkent University, 2009)
      The term plasmon-polariton is used to describe coupled modes of electromagnetic waves with electronic plasma oscillations in conductors. Surface plasmon resonances have found profound interest over the last few decades ...
    • Coupled plasmonic structures for sensing, energy and spectroscopy applications 

      Ayas, Sencer (Bilkent University, 2015-08)
      Recent advances in nanofabrication and characterization methods have enabled the study of novel optical phenomena, thus boosting the research in nanophotonics and plasmonics. Metal nanostructures offer a route for the ...
    • Infrared absorption spectroscopy of monolayers with thin film interference coatings 

      Ayas, Sencer; Bakan, Gökhan; Ozgur, E.; Celebi, Kemal; Dana, Aykutlu (Optical Society of America, 2017)
      We report high performance Infrared spectroscopy platforms based on interference coatings on metal using CaF2 dielectric films and Ge2Sb2Te5 (GST) phase-change films. IR vibrational bands of proteins and organic monolayers ...
    • Interference coatings for infrared spectroscopy and colorimetric sensing 

      Bakan, Gökhan; Ayas, Sencer; Özgür, Erol; Çelebi, Kemal; Dana, Aykutlu (OSA, 2018)
      Constructive interference and strong interference surfaces are created to sense ultrathin probe materials such as monolayer protein molecules using enhanced infrared absorption spectroscopy and colorimetric detection, ...
    • Label-free nanometer-resolution imaging of biological architectures through surface enhanced raman scattering 

      Ayas, Sencer; Çınar, Göksu; Özkan, Alper Devrim; Soran, Zeliha; Ekiz, Oner; Kocaay, Deniz; Tomak, A.; Toren, Pelin; Kaya, Yasin; Tunc, I.; Zareie, H.; Tekinay, T.; Tekinay, Ayse Begum; Güler, Mustafa O.; Dana, Aykutlu (Nature Publishing Group, 2013)
      Label free imaging of the chemical environment of biological specimens would readily bridge the supramolecular and the cellular scales, if a chemical fingerprint technique such as Raman scattering can be coupled with super ...
    • Reversible decryption of covert nanometer-thick patterns in modular metamaterials 

      Bakan, Gökhan; Ayas, Sencer; Serhatlıoğlu, Murat; Dana, Aykutlu; Elbüken, Çağlar (OSA - The Optical Society, 2019)
      Continuous development of security features is mandatory for the fight against forgery of valuable documents and products, the most notable example being banknotes. Such features demonstrate specific properties under certain ...