Results 141 to 150 of about 728 (215)
Misaligning Cascaded Liquid Crystal Elements for Continuously Tunable Axial Spin‐Dependent Splitting
Nanophotonics, Volume 15, Issue 17, 11 September 2026.Continuously tunable axial spin splitting is achieved by controlling the lateral misalignment of cascaded Pancharatnam‐Berry phase liquid crystal elements. The displacement generates a spin‐dependent quadratic phase, enabling linear, sign‐reversible focal adjustment and dynamic focus interchange for orthogonal circular polarizations.
Yougang Ke +7 more
wiley +1 more source
Dynamic Control of Phase Matching in Nonlinear Metasurfaces Using Pancharatnam–Berry Phase
Nanophotonics, Volume 15, Issue 17, 11 September 2026.Can mechanical rotation of a metasurface control the phase of a nonlinear optical signal? In a dual‐metasurface multipass cell, a circularly polarized pump interacts repeatedly with two plasmonic metasurfaces between two mirrors. By exploiting the geometric phase, rotating one metasurface shifts the phase‐matching condition of the second‐harmonic ...
Madona Mekhael +4 more
wiley +1 more source
Advanced Functional Materials, Volume 36, Issue 74, 14 September 2026.Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou +6 more
wiley +1 more source
Advanced Functional Materials, Volume 36, Issue 75, 17 September 2026.A CMOS‐compatible, all‐dielectric Silicon‐on‐Glass reflective metasurface enables low–loss terahertz wavefront control for future 6G wireless communication. Mie‐resonant silicon pillars provide full phase coverage near 500 GHz, achieving experimentally validated single‐, dual‐, and five‐beam steering with sub‐1.5° angular error and less than 3 dB ...
Rithwik Premanand +6 more
wiley +1 more source
Advanced Materials Technologies, Volume 11, Issue 18, 18 September 2026.Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma +5 more
wiley +1 more source
Enhancement of Circular Dichroism in Chiral Dielectric Metasurfaces by Ion Beam Irradiation
Advanced Optical Materials, Volume 14, Issue 35, 18 September 2026.Ion beam irradiation enables post fabrication tuning of dissipative losses in chiral dielectric metasurfaces composed of C4 symmetric silicon nanostructures. By tailoring the absorption toward critical coupling condition, circular dichroism is enhanced from 0.70 to 0.85, demonstrating a versatile route for maximizing optical chirality and polarization ...
Anna Fitriana +6 more
wiley +1 more source
Scalable Design and Optimization of Reconfigurable Sb2S3 Metasurfaces
Advanced Optical Materials, Volume 14, Issue 36, 25 September 2026.Scalable optimization methodologies are developed for reconfigurable Sb2S3 Huygens metasurfaces by combining localized phase‐match and overlap‐integral cost functions that account for inter‐element coupling. The framework enables computationally efficient design of large‐area, dual‐state flat optical devices with arbitrary wavefront transformations ...
Siddharth Padmanabha +2 more
wiley +1 more source
Unraveling the Thermal Response From Individual Multipole Resonances in Magnetodielectric Spheres
Advanced Photonics Research, Volume 7, Issue 9, September 2026.A semi‐analytical framework resolves electromagnetic heating into individual multipolar contributions and an inter‐order coupling correction, linking internal modal fields to local dissipation, temperature evolution, and heat flux. Applied to dual‐symmetric magnetodielectric spheres, it reveals balanced polarization and magnetization losses and ...
Jhon James Hernández‐Sarria +3 more
wiley +1 more source
Optical Windows for Transcranial Brain Imaging in Living Mice: Skull Thinning, Clearing, and Beyond
Advanced Science, Volume 13, Issue 52, 18 September 2026.Longitudinal, noninvasive in vivo imaging is crucial for studying brain physiology. Advances in transcranial optical windows and multiphoton microscopy have improved imaging depth, but their performance often deteriorates over time. This work investigated various transcranial window approaches and found that skull regrowth limits image quality.
Yiming Fu +5 more
wiley +1 more source
Advanced Intelligent Systems, Volume 8, Issue 9, September 2026.The phase discontinuity problem—where the cyclic nature of phase angles causes catastrophic errors near the ±π boundary—is a fundamental obstacle in learning‐based reconfigurable intelligent surface (RIS) optimization. A phase‐aware hybrid CNN–LSTM framework resolves this by decomposing phase predictions into sine–cosine components, mapping circular ...
Seda Savaşçı Şen +3 more
wiley +1 more source