Mühendislik Bilimleri ve Tasarım Dergisi, cilt.8, sa.3, ss.931-942, 2020 (Hakemli Dergi)
Alternative plasmonics based fractal microlens are investigated. In this context,lensing performance of gallium-doped zinc oxide Sierpinski carpet-based fractalconstruction functionalized by conformal Talbot effect is analyzed forcommunication wavelength 1550 nm. Focusing via diffraction from these 2D finitesized and two-iterated fractal lattice system is computationally demonstrated. Inthis regard, focusing performance parameters are computationally examined on thebasis of geometrical parameter sweep and fractal generation via finite differencetime-domain numerical simulations. Focusing efficiency > 50%, absoluteefficiency > 18%, and focal depth larger than primary spot size are introduced by allcomputational samples. Moreover, a conformal Talbot effect is exhibited by thisnovel alternative plasmonics construction. A novel perspective based on alternativeplasmonics by a newly adapted fractal design to optics is proposed. Thus, this fractalmicrolens is presented as a new planarized focusing platform, acting a conformaltransformation optics device for light capturing tolerance and low-cost.