11 بهمن 1401
آرزو رشيدي

آرزو رشیدی

مرتبه علمی: استادیار
نشانی: دانشگاه مازندران
تحصیلات: دکترای تخصصی / فیزیک اتمی و مولکولی (فیزیک لیزر)
تلفن: 011-35302401
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Tunable multispectral near-infrared absorption with a phase transition of VO2 nanoparticles hybridized with 1D photonic crystals
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
absorber, Vanadium dioxide nanoparticles, One-dimensional photonic crystal mirrors, Phase transition, Thermo-optical effect
مجله NANOTECHNOLOGY
شناسه DOI 10.1088/1361-6528/ab8e76
پژوهشگران آرزو رشیدی (نفر اول) ، صمد روشن انتطار (نفر دوم) ، علی هاتف (نفر سوم)

چکیده

We theoretically demonstrate a switchable multichannel near-infrared absorber in a composite structure based on vanadium dioxide nanoparticles embedded between two and one-dimensional photonic crystal mirrors. A switching of absorption behavior is induced through the reversible semiconductor-to-metal phase transition of vanadium dioxide nanoparticles via its temperature-dependent permittivity—thermo-optical effect. This behavior leads to a multi-wavelength reconfigurable optical response of the proposed structure from poorly absorbing to highly absorbing. For example, there is the possibility of enhancement of absorption from ∼0.14 to ∼0.75 at normal incidence of light by increasing the temperature beyond the critical value of ∼341 K when the vanadium dioxide nanoparticles transform from a semiconducting state into a metallic one. These properties make the considered structure applicable for use in multiband absorbers, light detectors, and optical switching devices.