Terahertz angle-independent photonic bandgap in a one-dimensional photonic crystal containing InSb-based hyperbolic metamaterials

F Wu, X Yu, A Panda, D Liu - Applied Optics, 2022 - opg.optica.org
According to the Bragg scattering theory, terahertz (THz) photonic bandgaps (PBGs) in all-
dielectric one-dimensional (1-D) photonic crystals (PhCs) are strongly dependent on the …

Dispersion-enabled control of photonic density of states in photonic hypercrystals

B Janaszek, A Tyszka-Zawadzka, P Szczepański - Optics Express, 2023 - opg.optica.org
In this work, we investigate possibility of engineering photonic density of states (PDOS) in
photonic hypercrystals (PHCs). In the course of our analysis, we have demonstrated that it is …

Ultrasensitive gas detection enabled by topological states at the interface between graphene and photonic hypercrystal

B Janaszek, A Tyszka-Zawadzka, P Szczepanski - 2024 - preprints.opticaopen.org
Within this paper, we propose a novel gas sensor enabling detection of NO2 concentration
at the level below 1 ppb. The physical mechanism for detection is based on the change of …