We synthesized BaTiO3–epoxy nanocomposites (particle size< 100 nm) with volume
fractions up to 25 vol.%, whose high-frequency complex permittivity was characterized from …

We develop a theory of refractive index tuning for symmetry-protected optical bound states
(SP-BICs) in high-contrast gratings (HCGs). A compact analytical formula for tuning …

Optical sensors detect the presence of analytes and their concentration from the change in
optical response. There have been a wide variety of optical sensors developed for the …

A study is conducted on a GaAs-based high-contrast subwavelength chiral metasurface
(HCCM) designed for 1064 nm. The metasurface integrates a high-contrast subwavelength …

Fano resonance (FR) is extremely sensitive to extremely small changes in the surrounding
environment. We first propose an optical nano-refractive index sensor based on Fano …

Quantum well infrared photodetectors (QWIPs) are popular due to their following
advantages: low cost, maturity of manufacturing, high uniformity, ease of wavelength …

We propose a monolithic optical bandpass filter with a transmission bandwidth tunable by
the incident angle in a tri-mode high-contrast grating (HCG). We attribute this extraordinary …

Multiple Fano resonance optical sensors based on high-contrast metastructures (HCM) are
designed in this paper, combining the temporal coupled-mode theory (TCMT) with the …