Results 81 to 90 of about 13,853 (310)
Dynamic Phase‐Change Metawaveplates for Advanced Wavefront Shaping
Advanced Photonics Research, 2022 Metasurfaces have recently gained increasing attention and shown great potential in replacing bulk optics with ultracompact flat metadevices, owing to their unprecedented capabilities of molding optical fields with surface‐confined configurations and ...
Ziru Cai +4 more
doaj +1 more source
Beam Formation and Vernier Steering Off of a Rough Surface
Micromachines, 2021 Wavefront shaping can refocus light after it reflects from an optically rough surface. One proposed use case of this effect is in indirect imaging; if any rough surface could be turned into an illumination source, objects out of the direct line of sight ...
Eric K. Nagamine +2 more
doaj +1 more source
Single-photon entanglement generation by wavefront shaping in a multiple-scattering medium
, 2014 We demonstrate the control of entanglement of a single photon between several spatial modes propagating through a strongly scattering medium. Measurement of the scattering matrix allows the wavefront of the photon to be shaped to compensate the ...
Barbieri, Marco +6 more
core +3 more sources
Focused and defocused retinal images with Bessel and axicon pupil functions. [PDF]
, 2020 Retinal image light distributions in a standard optical model of a diffraction-limited eye with round pupils are presented for several patterns of amplitude and phase modulation of the light admitted into the eye.
Westheimer, Gerald
core
Advanced Materials Technologies, EarlyView.A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik +6 more
wiley +1 more source
Quasi-Freeform Metasurfaces for Wide-Angle Beam Deflecting and Splitting
Nanomaterials, 2023 Metasurfaces attracted extensive interests due to their outstanding ability to manipulate the wavefront at a subwavelength scale. In this study, we demonstrated quasi-freeform metasurfaces in which the radius, location, and height of the nanocylinder ...
Qiuyu Zhang +7 more
doaj +1 more source
Adaptive Quantum Optics with Spatially Entangled Photon Pairs
, 2018 Light shaping facilitates the preparation and detection of optical states and underlies many applications in communications, computing, and imaging. In this Letter, we generalize light shaping to the quantum domain.
Defienne, Hugo +2 more
core +1 more source
Advanced Optical Materials, EarlyView.A dual‐domain PSLC architecture enables direct comparison of alignment‐dependent laser damage within a single device. Crack‐like and seal‐like morphologies emerge under different damage conditions, and their evolution is interpreted through quantitative image analysis and heat‐driven simulations.
Dengcheng Chen +4 more
wiley +1 more source
Acoustic reflected wavefront modulation based on Helmholtz resonator array
AIP Advances, 2022 In this work, a Helmholtz resonator (HR) with a subwavelength scale is proposed to modulate the acoustic wavefront in multiple manners. The phase response of the reflection wave can be continuously adjusted by altering the height of the cavity.
Rui Wang, Fengbao Yang
doaj +1 more source
Exploiting disorder for perfect focusing
, 2009 We demonstrate experimentally that disordered scattering can be used to improve, rather than deteriorate, the focusing resolution of a lens. By using wavefront shaping to compensate for scattering, light was focused to a spot as small as one tenth of the
A Derode +20 more
core +2 more sources