Electromagnetic metastructures stand for the artificial structures with a characteristic size
smaller than the wavelength, which may efficiently manipulate the states of light. However …

Nano-structure based metamaterial absorbers have been getting enormous interest owing
to their widespread applications in solar cells, thermal emitters and integrated photonic …

In this paper, the full solar spectrum coverage with an absorption efficiency above 96% is
attained by shell-shaped graphene-based hollow nano-pillars on top of the refractory metal …

Achieving broadband absorption has been a topic of intensive research over the last
decade. However, the costly and time consuming stage of lithography has always been a …

Perfect absorbers can be used in photodetectors, thermal imaging, microbolometers, and
thermal photovoltaic solar energy conversions. The spectrum of Mid-infrared (MIR) …

We numerically investigate the optical performance of a periodically patterned H-shaped
graphene array by the finite-difference time-domain (FDTD) in the mid-infrared region. The …

Broadband absorption of electromagnetic waves in different wavelength regions is desired
for applications ranging from highly efficient solar cells, waste heat harvesting, multi-color …

Infrared broadband absorbers are in great demand in various applications, such as
integration into uncooled infrared detectors and microbolometers. In this thesis, we …

This paper presents a new design of a fifth order bandpass waveguide filter with Chebyshev
response which operates in the X-band at 10 GHz center frequency. By using a …

In this article, a new structure for development of thin film solar cells is proposed in which
elements with fractal shapes are integrated inside the cell to enhance its performance in a …