Results 141 to 150 of about 471 (187)

3D Meta‐Atoms for High Confinement of Mid‐IR Radiation

Advanced Optical Materials, EarlyView.
Mid‐infrared, three‐dimensional circuit‐like resonators with extreme field confinement are experimentally demonstrated. Combining simulations, measurements, and analytical modelling, a physical interpretation and prediction of the resonant modes supported by the structure, including their resonant frequency and radiative and non‐radiative losses, is ...
Francesco Pisani, Usama Iqbal, Laure Tailpied, Baptiste Fix, Isabelle Sagnes, Yanko Todorov   +5 more
wiley   +1 more source

Diamond-lattice photonic crystals assembled from DNA origami. [PDF]

Science
Posnjak G, Yin X, Butler P, Bienek O, Dass M, Lee S, Sharp ID, Liedl T.   +7 more
europepmc   +1 more source

Evolution of Collective, Radiative Plasmon Coupling in Confined, Soft Colloidal Films

Advanced Optical Materials, EarlyView.
Plasmon resonance coupling is continuously monitored during the uniaxial manipulation of a 2‐dimensional soft colloidal film containing hexagonally arranged spherical gold nanocrystals. This is realized by the in situ spectroscopic investigation of a monolayer of plasmonic core‐shell microgels confined at the air/water interface that is compressed in a
Déborah Feller, Jiakai Wang, Julian Kippenberger, Christian Washeim, Jan A. Meissner, Jan Meisner, Paul Mulvaney, Matthias Karg   +7 more
wiley   +1 more source

Advanced Emissivity Tuning Via Femtosecond Laser Surface Engineering

Advanced Optical Materials, EarlyView.
Femtosecond laser surface processing (FLSP) is employed to fabricate titanium‐based metamaterials with engineered micro/nano‐scale features that exhibit spectrally selective and omnidirectional thermal emissivity. By integrating advanced ellipsometry, electromagnetic modeling, and compositional analysis, the work reveals resonance‐driven emissivity ...
Zahra Kamali Khanghah, Andrew Butler, Andrew Reicks, Juveriya Parmar, Eva Schubert, Craig Zuhlke, Mathias Schubert, Ufuk Kilic, Mohammad Ghashami   +8 more
wiley   +1 more source

Spatial periodicity in grid cell firing is explained by a neural sequence code of 2-D trajectories. [PDF]

Elife
Rg R, Ascoli GA, Sutton NM, Dannenberg H.   +3 more
europepmc   +1 more source

State‐of‐the‐Art Solar Blind and X‐Ray Photodetectors Based on Gallium Oxide

Advanced Photonics Research, EarlyView.
State‐of‐the‐art Ga2O3‐based solar‐blind UV and X‐ray photodetectors (PDs) are reviewed. Benchmark plots compare responsivity versus specific detectivity for UV PDs (photoconductors, photovoltaic, Schottky, heterojunction, avalanche, and phototransistor types) and sensitivity versus response time for X‐ray detectors based on Ga2O3 bulk crystals, thin ...
Catherine Langpoklakpam, Siddharth Rana, Chi‐Hsiang Hsieh, Jitendra Pratap Singh, Po‐Tsung Lee, Ray‐Hua Horng, Chang‐Ching Tu, Hao‐Chung Kuo   +7 more
wiley   +1 more source

The Unbearable Indefiniteness of Spacetime. [PDF]

Found Phys
Cinti E, Mariani C, Sanchioni M.
europepmc   +1 more source

Towards a fundamental safe theory of composite Higgs and dark matter. [PDF]

Eur Phys J C Part Fields, 2020
Cacciapaglia G, Ma T, Vatani S, Wu Y.
europepmc   +1 more source

Advances in GaN‐on‐Glass for Optoelectronic Devices: Progress in Epitaxial Growth, Device Integration, and Applications

Advanced Photonics Research, EarlyView.
This review presents recent advances in GaN‐on‐glass technology, with a focus on epitaxial growth strategies, preorienting layers, and device integration. Innovations in material processing have been shown to enhance structural quality, orientation control, and scalability, highlighting their significance in light‐emitting diodes, photodetectors, and ...
Jungwook Min, Kwangwook Park
wiley   +1 more source

Strain‐Induced Optical and Molecular Transformations in Poly(Ethylene Terephthalate) Films for Organic Electronic Applications

Advanced Photonics Research, EarlyView.
This study explores how mechanical strain affects the optical and molecular properties of poly(ethylene terephthalate) (PET) films, crucial for flexible electronics. Using UV–Vis and Raman spectroscopy, it reveals strain‐induced changes in transparency and vibrational modes. Findings provide insights into optimizing PET‐based devices like organic solar
Mahya Ghorab, Ayush K. Ranga, Patrice Donfack, Arnulf Materny, Veit Wagner, Mojtaba Joodaki   +5 more
wiley   +1 more source