Redshift gaps in one-dimensional photonic crystals containing hyperbolic metamaterials

Investigation of effective media applicability for ultrathin multilayer structures

“…Their main property is that they behave like metals in one direction and dielectric in the other direction in a broadband wavelength range of operation 1,2 . HMMs have shown various phenomena and applications in engineering photonic density of states 3 , enhanced spontaneous decay and recombination rates 4,5 , super lens beating diffraction limit [6][7][8] , extremely high biosensing sensitivity 9 , polarization selectivity 10 . They can be realized in the visible to mid-infrared wavelength region by a combination of metal and dielectric in the form of multilayers 11-13 , a [14][15][16] , nanorods 17 .…”

Photonic and Plasmonic Metasensors

“…years, several types of advanced and complex multilayer HMMs have been proposed based on graphene monolayer, [145,146] multilayer fishnet, [147,148] aligned carbon nanotube stacks, [149,150] hyperlens, [151,152] and photonic hypercrystals. [153][154][155] Examples of diverse shapes of the elucidated hyperbolic artificial media are diagrammatically shown in Figure 1c-h. [146,154,[156][157][158][159][160] Focusing on multilayer HMMs with varying permittivity values, extremely sensitive and high-throughput biological sensors have been devised in recent years. These architectures majorly operate based on the excitation of guided mode resonances and tight confinement of local fields.…”

“…[373,374] This facilitated the development of highly responsive, efficient, and advanced photonic and plasmonic metadevices based on toroidal excitations, including modulators, [97,375,376] photodetectors, [377,378] waveguides, [379] nonlinear light sources, [95] polarization manipulators, [382,383] and immunobiosensors. [24,84,85,[154][155][156][157][382][383][384][385][386] Other important principles that toroidal metasurfaces have been used and studied include plexciton dynamics [105] and optical Hall effect. [387,388] Figure 13 shows drawings of various forms of toroidal-resonant metastructures that have been engineered for next-generation nanophotonic and plasmonic applications.…”

Theory for optical activity in monolayer black phosphorus under external magnetic field

“…In the past several decades, uniaxial anisotropic materials have attracted researchers' great interest due to its versatile applications in polarization control [21,22], optical filtering [23][24][25], biosensing [26], and near-field radiative heat transfer [27,28]. For a long time, uniaxial anisotropic materials had not been considered to achieve optical activity since they do not possess intrinsic chirality.…”