Browsing by Author "Kara, Semih"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemOpen Access
    Doppler effect on nanopatterning with nonlinear laser lithography
    (OSA, 2017) Yavuz, Özgün; Kara, Semih; Tokel, Onur; Pavlov, Ihor; İlday, Fatih Ömer
    Summary form only given. Just five years after invention of the laser, laser induced periodic structures (LIPSS) had been reported. However, the structure period is not very uniform in LIPSS. Recently, with nonlinear laser lithography (NLL), long range ordered periodic surface structures had been maintained by exploiting various feedback mechanisms and nonlinearities. Albeit, fine tuning of structure period remains challenging. Here, we present an analogy between Doppler effect and structure period of the NLL which adds a capability of changing the structure period.
  • Thumbnail Image
    ItemRestricted
    Türkiye’de dağcılık tarihi
    (Bilkent University, 2015) Oğuz, Ahmet Ozan; Kara, Semih; Tulunay, Gökçe; Oral, Özgü; Şimşek, Serkut