Results 191 to 200 of about 20,833 (309)

Near‐Infrared Polarimetric Imaging With Nonlinear Flat‐Optics

Laser &Photonics Reviews, EarlyView.
ABSTRACT A compact and broadband polarimetric imaging platform is presented, based on second‐harmonic generation (SHG) in nonlinear flat‐optics. The system employs periodic all‐dielectric AlGaAs gratings to induce polarization‐dependent SH emission, enabling pixel by pixel direct retrieval of the full Stokes vector from an input intensity distribution ...
Evgenii Menshikov, Marco A. López Sánchez, Paolo Franceschini, Andrea Tognazzi, Domenico de Ceglia, Kristina Frizyuk, Costantino De Angelis   +6 more
wiley   +1 more source

Reconfigurable chiroptical metasurface sensors enabled by bound states in the continuum. [PDF]

iScience
Liu J, Yu T, Hu H, Zhou H, Chen X, Zhan Q.   +5 more
europepmc   +1 more source

Responsive Phase Gradient Metasurface for Laser Stealth and Dynamic Thermal Camouflage

Laser &Photonics Reviews, EarlyView.
The graphical abstract depicts a phase‐gradient metasurface enabling directional scattering and emissivity‐controlled thermal radiation. The engineered phase profile redistributes the reflected optical momentum, suppressing specular reflection and generating non‐specular scattering.
Zhihao Yuan, Yanlei Liu, Kun Yu, Han Dai, Tianxu Jia, Zhiying Chen, Junsuk Rho, Yufang Liu   +7 more
wiley   +1 more source

Visible-wavelength vectorial holography based on an MIM metasurface. [PDF]

Discov Nano
Zhou Y, Miao R, Geng Z, Chen MK.
europepmc   +1 more source

Multispectral Concentric Grafted Perfect Vector Vortex Beam

Laser &Photonics Reviews, EarlyView.
Multispectral structured light offers powerful opportunities for increasing information capacity. A multispectral concentric grafted perfect vector vortex beam is proposed to engineer topological charges and polarization. A metasurface can graft different perfect vector vortex beams across concentric spatial regions and extend this concept to ...
Guanchao Wang, Hammad Ahmed, Chunmei Zhang, Yu Wang, Xiuyou Han, Li Li, Xianzhong Chen   +6 more
wiley   +1 more source

Phase Control Mechanisms in Metasurfaces: From Static Approaches to Active and Space-Time Modulation. [PDF]

Sensors (Basel)
Haroon M, Kim SW, Choi DY.
europepmc   +1 more source

Wavelength and Full‐Polarization Encrypted Orbital Angular Momentum Meta‐Holography

Laser &Photonics Reviews, EarlyView.
By multiplexing three independent degrees of freedom of light, a single‐layer geometric‐phase metasurface encrypts 24 distinct holographic images across 3 wavelengths, 12 pairs of orthogonal polarizations, and 4 OAM channels, taking advantage of axial chromatic dispersion to reconstruct the color images at the same plane. ABSTRACT Multiplexing multiple
Yue Han, Mingna Xun, Yuqing He, Sheng Ye, Weiping Wan, Yan Li   +5 more
wiley   +1 more source

Metasurface analogues of molecular diastereomers from hierarchical multiscale chiral interactions with biomolecules. [PDF]

Nat Commun
Koyroytsaltis-McQuire DJP, Chaubey SK, Kumar R, Lalaguna PL, Javorfi T, Siligardi G, Karimullah A, Lapthorn AJ, Tanaka YY, Hashiyada S, Gadegaard N, Kadodwala M.   +11 more
europepmc   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Reconfigurable, Temperature Resilient Phase-Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography. [PDF]

Adv Sci (Weinh)
de Ruiz de Galarreta C, Zhao Y, Mendoza-Carreño J, Caicedo JM, Santiso J, Wright CD, Alonso MI, Li J, Mihi A.   +8 more
europepmc   +1 more source