Results 171 to 180 of about 5,311 (260)
Topological Photonic Crystal Ring Resonator Pressure Sensor in the Optical Communication Range. [PDF]
Wu M, Yang Z, Fei H, Lin H.
europepmc +1 more source
Tunable Plasmon‐Enhanced Wide‐Angle Terahertz Perfect Absorption via Lorentz Media
A planar graphene‐Lorentz‐DBR structure realizes wide‐angle terahertz perfect absorption through a composite phase‐amplitude matching mechanism. The Lorentz dielectric provides dispersive phase compensation and controlled loss, whereas graphene supports dissipative coupling, enabling high absorption up to 80° incidence and multichannel spectral ...
Yuxuan Zhou
wiley +1 more source
Recent Progress in on-Demand Transfer-Enabled Integration of Wavelength-Scale Light Sources. [PDF]
Kim H +7 more
europepmc +1 more source
An all‐dielectric asymmetric gammadion metasurface exhibits visible circular dichroism governed by helicity‐selective multipolar excitations. Quadrupole‐dominated and weaker mixed‐mode resonances are identified, and their distinct near‐field optical chirality and angular responses are revealed, establishing a direct link between structural asymmetry ...
Chien‐Feng Chien +4 more
wiley +1 more source
A high efficiency slot array antenna with single layered gap waveguide feeding system for long-range wireless systems. [PDF]
Mohammadpour M, Mohajeri F, Parizi SAR.
europepmc +1 more source
High‐Energy Topological Edge States and Strain‐Induced Multiple Flat Bands in a Honeycomb Lattice
This work proposes a novel anti‐twig edge in the honeycomb lattice that supports two symmetric high‐energy edge states. Moreover, the suppression or enhancement of the high‐energy edge state is observed, and strain‐induced multiple flat bands are produced.
Xiaoqin Bai +4 more
wiley +1 more source
Reconfigurable spatial-mode generation and multiplexing on a scalable photonic chip. [PDF]
Xiao X +5 more
europepmc +1 more source
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff +11 more
wiley +1 more source
Terahertz MEMS actuators and applications. [PDF]
Wang Z +13 more
europepmc +1 more source
Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha +14 more
wiley +1 more source

