Results 41 to 50 of about 1,322 (144)

Planar Chiral Nanoantenna for Excitation‐Chirality‐Controlled Hot Spot Modulation and Emitter‐Coupled Circularly Polarized Emission

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
A planar chiral plasmonic nanoantenna is shown to translate the changing handedness of circularly polarized excitation into deterministic switching of a nanoscale hot spot with maximal dissymmetry and complete modulation depth. Coupling an achiral quantum emitter to the nanogap simultaneously enables circularly polarized emission of near‐maximal purity,
Abhik Chakraborty, Xiaofei Wu, Ankit Kumar Singh, Fabian Scheidler, Min Jiang, Jürgen Popp, Bert Hecht, Jer‐Shing Huang   +7 more
wiley   +1 more source

Demonstration of extrinsic chirality in self-assembled asymmetric plasmonic metasurfaces and nanohole arrays

Scientific Reports
Chirality, the lack of mirror symmetry, can be mimicked in nanophotonics and plasmonics by breaking the symmetry in light-nanostructure interaction. Here we report on versatile use of nanosphere lithography for the fabrication of low-cost metasurfaces ...
Emilija Petronijevic, T. Cesca, C. Scian, G. Mattei, R. Li Voti, C. Sibilia, A. Belardini   +6 more
doaj   +1 more source

Enhanced Enantioselective Optical Trapping Enabled by Longitudinal Mie Resonances in Silicon Nanodisks

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Longitudinal Mie resonances in silicon nanodisks, excited by an azimuthally–radially polarized beam, generate strong optical chirality gradients with minimal achiral background. Magnetic quadrupole modes enable selective enantiomer trapping, achieving predicted selectivities over 100 for |κ|≥0.03 $\vert \kappa \vert \ge 0.03$ and robust performance ...
Guillermo Serrera, Pablo Albella
wiley   +1 more source

Optical Chirality from Dark‐Field Illumination of Planar Plasmonic Nanostructures [PDF]

Laser & Photonics Reviews, 2017
AbstractDark‐field illumination is shown to make planar chiral nanoparticle arrangements exhibit circular dichroism in extinction, analogous to true chiral scatterers. Single oligomers, consisting rotationally symmetric arrangements of gold nanorods, are experimentally observed to exhibit circular dichrosim at their maximum scattering with strong ...
Hwang, Yongsop, Hopkins, Ben, Wang, Dapeng, Mitchell, Arnan, Davis, Timothy J., Lin, Jiao, Yuan, Xiao-Cong   +6 more
openaire   +3 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Enhanced Volume Optical Chirality in Electromagnetically Balanced Plasmonic Helices

Advanced Photonics Research, Volume 7, Issue 7, July 2026.
Electromagnetically balanced plasmonic helices enable enhanced optical chirality within their interior volume in the mid‐infrared. Tuning the helix geometry controls the balance between electric and magnetic dipole responses, producing strong chiral near fields and enabling chirality sign reversal without changing structural handedness.
Ihar Faniayeu, Ivan Fanyaev
wiley   +1 more source

Electrically Responsive Structural‐Color Materials

Aggregate, Volume 7, Issue 7, July 2026.
This review highlights electrically responsive structural‐color materials as next‐generation electrochromic platforms, summarizing key structural designs, modulation mechanisms, and performance metrics to enable continuous, low‐voltage, and tailorable color tuning for advanced display, camouflage, and security applications.
Qiming Wang, Dekun Ma, Cong Cao, Dongpeng Yang, Shaoming Huang   +4 more
wiley   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, Volume 5, Issue 7, July 2026.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Spectral properties of chiral electromagnetic near fields created by chiral plasmonic nanostructures

2018 Joint Symposia on Optics, 2018
Abstract The surface-enhanced chiral-optical spectroscopy is based on the interaction of chiral molecules with chiral electromagnetic near field localized on a chiral plasmonic nanostructure. It is of fundamental importance to reveal the spectral characteristics of chiral near fields for maximizing the chiral interaction.
S. Hashiyada, K. Endo, T. Narushima, Y. Togawa, H. Okamoto   +4 more
openaire   +1 more source

DNA Nanostructure-Assembled Metallic Nanoparticles for Biosensing Applications. [PDF]

Molecules
Ren S, He K, Cui C, Fan H, Peng H, Jiao K, Wang L.   +6 more
europepmc   +1 more source