Toroidal dipole (TD) with weak coupling to the electromagnetic fields offers tremendous
potential for advanced design of photonic devices. However, the excitation of high quality …

A novel metallic toroidal dipole (TD) metasurface driven by Friedrich-Wintgen bound states
in the continuum (FW-BIC) is theoretically proposed for terahertz (THz) sensing. By tuning …

Symmetry-protected and accidental bound states in the continuum (BICs) are generated by
various triggering mechanisms, and it is challenging to use them together for sensing. This …

In recent years, the concept of bound states in the continuum (BICs) in metasurfaces has
become a research focus, providing an important physical mechanism for engineering high …

Terahertz (THz) photoconductive devices are used for generation, detection, and modulation
of THz waves, and they rely on the ability to switch electrical conductivity on a …

Sensing technologies based on terahertz waves have immense potential due to their non-
destructive, transparent, and fingerprint spectral response of several materials that are …

High quality factor resonances are extremely promising for designing ultra-sensitive
refractive index label-free sensors, since it allows intense interaction between …

Terahertz (THz) waves, which fall between microwaves and infrared bands, possess
intriguing electromagnetic properties of non-ionizing radiation, low photon energy, being …

Electrical dipole resonances typically have low Q factor and broad resonant linewidth
caused by strong free-space coupling with high radiative loss. Here, we present a strategy …

Strong interaction between terahertz (THz) and matter is a topic of paramount importance,
considering continuously enhanced interest in THz photonics as well as condensed matter …