The rapid development of optical technologies, such as optical manipulation, data
processing, sensing, microscopy, and communications, necessitates new degrees of …

In this paper, we theoretically propose a highly sensitive terahertz sensor based on a
graphene metamaterial absorber in the THz region. The numerical analysis of the proposed …

A tunable triple-band absorption-based refractive index (RI) sensor with a combined
graphene pattern in the terahertz (THz) band has been proposed in this paper. The …

A novel quad-band, fan-shaped split-ring metamaterial absorber and refractive index sensor
for THz spectrum is presented in this paper. The structure is based on periodic graphene …

In contrast to noble metals, graphene exhibits significantly lower loss, especially useful for
optical sensing applications that require ultrahigh Q factors, and offer wide range tunability …

The interaction of light with time-varying materials offers intriguing opportunities for
controlling light scattering and wavefront manipulation, thereby unlocking fascinating …

We propose a graphene-dielectric hybrid metamaterial (GDHM) that supports the quasi-
bound state in the continuum (BIC). By rotating one of the LiTaO 3 bars, the quasi-BIC …

Terahertz metamaterial absorber (TMMA) has broad prospects for sensing applications. To
achieve high sensitivities and low detection limits in practice, a TMMA should exhibit a high …

In this paper, we propose a tunable graphene metamaterial absorber (TGMA) as a
bifunctional terahertz sensor. The TGMA can excite one peak with a maximum absorption of …

Electric anapoles, arising from the destructive interference of primitive and toroidal electric
dipole moments, have recently emerged as a fundamental class of non-scattering sources …