A tunable flat terahertz lens using Dirac semimetals: a simulation study

P Panahianfar, B Rezaei, A Darafsheh - Scientific Reports, 2024 - nature.com
We propose and design a flat and tunable terahertz lens achieved through a two-
dimensional photonic crystal composed of an array of rods made of a Dirac semimetal …

Non-mechanical multidirectional optical beam steering using fringing fields in liquid crystals

R Panchal, A Sinha - JOSA B, 2023 - opg.optica.org
Non-mechanical multidirectional and wide-angle beam-steering devices are of high interest
in advanced laser scanning applications. We present a non-mechanical multidirectional …

Electrically controlled continuous laser beam steering in a liquid crystal based electro-optic waveguide

R Panchal, A Sinha - Optics & Laser Technology, 2023 - Elsevier
Non-mechanical and continuous beam steering devices are highly desirable in recent laser
scanning applications and telecommunication advancements. We report a liquid crystal (LC) …

Tuning light focusing with liquid crystal infiltrated graded index photonic crystals

B Rezaei, IH Giden, H Kurt - Optics Communications, 2017 - Elsevier
We perform numerical analyses of tunable graded index photonic crystals based on liquid
crystals. Light manipulation with such a photonic medium is explored and a new approach …

Active beam steering and afocal zooming by nematic liquid crystal-infiltrated graded index photonic structures

C Babayigit, H Kurt, M Turduev - Journal of Physics D: Applied …, 2019 - iopscience.iop.org
This study presents active beam steering and afocal zooming of light by incorporating liquid
crystals (LCs) with graded index photonic crystals (GRIN PCs). The GRIN PC structures are …

Two-Dimensional Hybrid Photonic Crystal with graded low-index using a nonuniform voltage

B Rezaei, IH Giden, MS Zakerhamidi… - … für Naturforschung A, 2019 - degruyter.com
We proposed a new method for designing graded index lens using liquid crystal infiltration
into annular photonic crystals. Applying an external nonuniform voltage in the transverse …

Derecelendirilmiş ve dalgalı çok katmanlı fotonik yapılarda ışığın etkin kontrolü

C Babayiğit - 2020 - gcris.etu.edu.tr
Fotonik, fotonik kristallerin periyodik olarak düzenlenmesi ile oluşturulan yapıların optik
özelliklerini analiz ve kontrol etmemizi sağlayan, ışık akışını manipüle etmeye dayalı bir bilim …