Results 71 to 80 of about 4,173 (275)

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud   +31 more
wiley   +1 more source

Deep learning-empowered wavefront shaping in scattering media

open access: yes, 2021
Wavefront shaping is a widely accepted approach to focus light within or through scattering media, however, so far, most implementations to pre-compensate the optical wavefronts have only operated with static media due to the requirements of iterative ...
Luo, Yunqi
core   +1 more source

Deep Learning Inverse Design of Phase‐Change Reconfigurable Terahertz Metadevices for Multidimensional Secure Communication

open access: yesAdvanced Materials, EarlyView.
A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong   +11 more
wiley   +1 more source

Simultaneous polarization filtering and wavefront shaping enabled by localized polarization-selective interference

open access: yesScientific Reports, 2020
The ability of simultaneous polarization filter and wavefront shaping is very important for many applications, especially for polarization imaging. However, traditional methods rely on complex combinations of bulky optical components, which not only ...
Jixiang Cai   +4 more
doaj   +1 more source

Imaging Applications of Time-Domain Wavefront Shaping

open access: yesFrontiers in Optics / Laser Science, 2020
We demonstrate grid scanning of an ultrashort pulse at the output of a multi-mode fiber by temporally shaping the input pulse in a single spatial mode. Our method has applications in nonlinear endoscopic imaging.
M.C. Velsink (Matthias)   +2 more
openaire   +2 more sources

Full Vectorial Field Sensing Using Liquid Crystal Droplet Arrays

open access: yesAdvanced Materials, EarlyView.
An inkjet‐printed liquid crystal droplet array enables compact, low‐cost, single‐shot sensing of the full vectorial light field. Within a single platform, it simultaneously retrieves intensity, polarization, and phase, while dual‐wavelength operation highlights its capability for multi‐wavelength optical field characterization. ABSTRACT Determining the
Xuke Qiu   +10 more
wiley   +1 more source

Focusing light into scattering media with ultrasound-induced field perturbation

open access: yesLight: Science & Applications, 2021
A wavefront shaping technique with ultrasound-induced optical field perturbation is demonstrated, which provides an efficient and flexible mechanism to implement noninvasive and addressable optical focusing into scattering media.
Zhongtao Cheng, Lihong V. Wang
doaj   +1 more source

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

open access: yesAdvanced Materials Technologies, EarlyView.
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   +8 more
wiley   +1 more source

Free-standing bilayer metasurfaces in the visible

open access: yesNature Communications
Multi-layered meta-optics have enabled complex wavefront shaping beyond their single layer counterpart owing to the additional design variables afforded by each plane.
Ahmed H. Dorrah   +3 more
doaj   +1 more source

Additively Manufactured Polarization Insensitive Broadband Transmissive Metasurfaces for Arbitrary Polarization Conversion and Wavefront Shaping [PDF]

open access: yes, 2023
Arbitrarily manipulating the polarization and wavefront of electromagnetic waves using ultrathin and highly efficient devices is desirable for many systems.
Lai, J, Yang, Y, Zhu, J, Nulman, J
core   +1 more source

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