Results 121 to 130 of about 14,300 (240)
Efficient Color Filters Based on Fano-Like Guided-Mode Resonances in Photonic Crystal Slabs
IEEE Photonics Journal, 2018 We numerically report designs of color filters comprising of 2-D photonic crystal (2D-PhC) slabs of square lattice of air holes. The filter principle is based on excited Fano-like guided-mode resonances (GMRs) in the visible regime with high-quality ...
Van An Nguyen +2 more
doaj +1 more source
Anderson localization in disordered LN photonic crystal slab cavities
, 2018 We present a detailed theoretical study of the effects of structural disorder on LN photonic crystal slab cavities, ranging from short to long length scales, using a fully-3D Bloch mode expansion technique.
Hughes, Stephen, Vasco, J. P.
core +1 more source
Electrically Reconfigurable Nonvolatile Transmissive Metasurface in Visible
Advanced Optical Materials, Volume 14, Issue 11, 20 March 2026.An electrically reconfigurable, non‐volatile metasurface operating in the visible spectrum is demonstrated using just 20 nm thick wide‐bandgap phase change material Sb2S3. On integration with a custom ultrathin silicon micro‐heater, the device achieves reversible switching with a 16 nm resonance tuning range at 610 nm, a wavelength largely under ...
Virat Tara +7 more
wiley +1 more source
Triple‐Cation Engineering for Efficient and Stable Sky‐Blue Quasi‐2D Perovskite LEDs
Advanced Photonics Research, Volume 7, Issue 3, March 2026.Doping of the quasi‐2D film improves stability and enables higher photoluminescence quantum yield. Quasi‐2D metal‐halide perovskite LEDs (PeLEDs) are promising for displays but remain limited by trap‐mediated loss and short lifetimes, especially in the blue. Here, we report a triple‐cation A‐site doping strategy by co‐incorporating Rb+ and guanidinium (
C‐H. Angus Li +5 more
wiley +1 more source
, 2004 We show some new properties of the acoustic propagation in two-dimensional sonic crystals, formed by parallel rigid cylinders placed in air. The transmission through slabs of sonic crystals and the associated band structures are considered.
Chen, Liang-Shan +2 more
core +1 more source
Atomistic Understanding of 2D Monatomic Phase‐Change Material for Non‐Volatile Optical Applications
Advanced Science, Volume 13, Issue 16, 18 March 2026.Antimony is a promising monatomic phase‐change material. Scaling down the film thickness is necessary to prolong the amorphous‐state lifetime, but it alters the optical properties. The combined computational and experimental study shows that, as thickness decreases, the extinction coefficient and optical contrast are reduced in the near‐infrared ...
Hanyi Zhang +10 more
wiley +1 more source
Ultra high-Q photonic crystal nanocavity design: The effect of a low-epsilon slab material
, 2008 We analyze the influence of the dielectric constant of the slab on the quality factor (Q) in slab photonic crystal cavities with a minimized vertical losses model.
Bayn, Igal, Salzman, Joseph
core +1 more source
Photothermal Transport for Guiding Nanoparticles Through the Vitreous Humor
Advanced Science, Volume 13, Issue 16, 18 March 2026.Nanosecond laser irradiation of the clinically approved dye indocyanine green (ICG) enables light‐guided nanoparticle transport within the vitreous humor. The combined use of ICG and pulsed laser illumination induces localized convection and thermophoresis, directing particles toward illuminated regions.
Léa Guerassimoff +9 more
wiley +1 more source
Advanced Science, Volume 13, Issue 13, 3 March 2026.Few‐layer La2CoO4 nanosheets are produced via phonon‐resonance‐assisted cleavage of the rock‐salt layers in the Ruddlesden‐Popper structure under the 20 kHz resonance condition, enabling controlled exfoliation into ultrathin sheets. The nanosheets show improved gas‐sensing capability, delivering an 86.67% response to 1 ppm NO2 at room temperature ...
Yi Liang +13 more
wiley +1 more source
Parity-time symmetry from stacking purely dielectric and magnetic slabs
, 2015 We show that Parity-time symmetry in matching electric permittivity to magnetic permeability can be established by considering an effective Parity operator involving both mirror symmetry and coupling between electric and magnetic fields.
Chu, S. T. +4 more
core +2 more sources