Results 201 to 210 of about 3,811,787 (369)
Advanced Optical Materials, EarlyView.A novel scheme is introduced to achieve optical self‐tuning in ferroelectric lithium niobate (LN) metasurfaces equipped with a thin film of liquid crystals (LCs). The resonant optical field distributions inside the meta‐atoms can induce a photovoltaic (PV) field, which reorients the surrounding LCs.
Atefeh Habibpourmoghadam +2 more
wiley +1 more source
Cation‐Engineered Post‐Treatment for Blue Perovskite Light‐Emitting Diodes
Advanced Optical Materials, EarlyView.This work presents a cation‐engineered post‐treatment strategy for high‐performance mixed‐halide blue PeLEDs. By investigating the role of 4‐fluorophenylethylammonium (FPEA+) versus conventional phenylethylammonium (PEA+) organic cations in post‐treatment agents, it demonstrates that FPEA+ enables superior preservation of the 3D perovskite structure ...
Zheng Zhang +7 more
wiley +1 more source
Extreme Terahertz Nonlinearity of AlGaN/GaN‐Based Grating‐Gate Plasmonic Crystals
Advanced Optical Materials, EarlyView.Plasmonic crystals based on grating‐gated 2D electron gas in AlGaN/GaN heterostructures provide a platform for strong light‐matter interaction. Pump‐probe experiments revealed strong terahertz nonlinearity leading to 45% increase in transmission at a fluence below 350 nJ cm−2.
Pavlo Sai +14 more
wiley +1 more source
Advanced Optical Materials, EarlyView.A design principle is presented that maximizes absorption in ultrathin (tens of nanometers) Sn halide perovskite optoelectronic devices by aligning their intrinsic absorption wavelengths with Fabry–Pérot (FP) resonances. The ultrathin FASnI3 devices exhibit increases open‐circuit voltage, reduces dark current, and high photocurrent, yielding high ...
Donggyu Lim +6 more
wiley +1 more source
Terahertz Spoof Surface Plasmon Polariton Structure for High‐Precision Gas Sensor Technology
Advanced Photonics Research, EarlyView.This study presents a high‐sensitivity THz sensor based on spoof surface plasmon polaritons, optimized for gas sensing. The multilayer structure enables placement of the sample material in the densest region of the plasmonic surface waves, enhancing interaction with THz waves and significantly improving sensitivity to small refractive index variations ...
Vahid Najafy +2 more
wiley +1 more source
Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering
Advanced Photonics Research, Volume 6, Issue 5, May 2025.Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik +7 more
wiley +1 more source
Comparison of models for the relative static permittivity with the e-CPA equation of state
, 2022 Martin Due Olsen +3 more
openalex +1 more source
Advanced Photonics Research, EarlyView.A plasmonic reflective filter utilizing monolayer graphene is proposed and theoretically examined. The filter demonstrates dual‐band reflection and absorption characteristics at resonance wavelengths in the near infrared. The reflection dips is adjusted by manipulating the chemical potential of graphene.
Mohammad Sadegh Zare +3 more
wiley +1 more source
Advanced Photonics Research, EarlyView.The images (a) and (b) illustrate a composite metamaterial with anisotropic permittivity. When incident light, polarized in transverse magnetic or transverse electric modes, enters the structure, the reflectance spectra in (c) and (d) show low reflection and high absorption over a wide range of incidence angles. This behavior has potential applications
Muhammad Imran +6 more
wiley +1 more source