Results 111 to 120 of about 3,788 (213)
Advanced Photonics Research, Volume 7, Issue 8, August 2026.The luminescence from Si‐nanocrystals embedded in a waveguide layer is strongly modified by a shallow photo resist grating on top, which is fabricated by large area laser interference lithography. Guided mode resonances and quasi bound states in the continuum lead to increased upward coupling of radiation, which are also used to experimentally map the ...
Krishna Koundinya Upadhyayula +7 more
wiley +1 more source
Tunable wavelength selectivity of photonic metamaterials-based thermal devices. [PDF]
J Photonics Energy, 2019 Tian Y +4 more
europepmc +1 more source
UV‐Enhanced Scanning Electron Microscope: Toward Orientation and Electron Work Function Imaging
Advanced Photonics Research, Volume 7, Issue 8, August 2026.A complementary deep‐UV illumination system for scanning electron microscope (SEM) is developed at a robust instrument level with precise mechanical control of the focused beam's position and tilt. New SEM imaging modalities are discussed, and future prospects of introducing polarised UV irradiation are outlined by numerical simulations of electron ...
Maciej Kretkowski +8 more
wiley +1 more source
Direct observation of topological surface-state arcs in photonic metamaterials. [PDF]
Nat Commun, 2017 Yang B +10 more
europepmc +1 more source
Cellulose as a Platform for Biodegradable Metasurfaces: THz Characterization and Fabrication
Advanced Sustainable Systems, Volume 10, Issue 8, August 2026.The demand for sustainable THz technologies has motivated the development of biodegradable, flexible devices based on ethyl cellulose. Metal‐backed EC metasurfaces were analytically designed and fabricated to achieve near‐perfect THz absorption. Reflection‐mode THz spectroscopy confirmed resonant absorption at 0.576 and 0.411 THz, demonstrating the ...
Edoardo Negri +7 more
wiley +1 more source
Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces
Laser &Photonics Reviews, Volume 20, Issue 16, 21 August 2026.Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley +1 more source
A 0.7 to 30 GHz Coplanar Vivaldi Antenna
Microwave and Optical Technology Letters, Volume 68, Issue 8, August 2026.ABSTRACT In the literature there are multiple Vivaldi antenna designs that have a wide impedance bandwidth; however, the usable bandwidth is often limited by pattern degradation at the higher frequencies of the band. This paper presents the design and implementation of a coplanar Vivaldi antenna with a 42.9:1 usable bandwidth ratio (0.7–30 GHz).
Jessica Mundell +3 more
wiley +1 more source
Nano Select, Volume 7, Issue 8, August 2026.The evaluation of the physical properties of novel KHgF3 and FrHgF3 perovskites is explored. Both compounds are thermodynamically stable and mechanically ductile. Featuring narrow band gaps around 0.53–0.60 eV, these materials show strong potential for use in flexible infrared‐to‐visible optoelectronics and energy conversion devices.
Md. Imtiaz Hossain Chowdhury +6 more
wiley +1 more source
Metamaterial Photonics and Integration [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2018 +4 more sources
Small, Volume 22, Issue 46, 18 August 2026.ABSTRACT Generating pre‐designed vectorial beams via on‐chip devices can yield many fascinating applications, but traditional diffraction‐based devices are bulky and inefficient. While plasmonic metasurfaces exhibit ultra‐compact sizes and deep‐subwavelength resolutions, their working efficiencies are limited by metallic losses.
Yu He +8 more
wiley +1 more source