Results 201 to 210 of about 5,661,115 (334)

Spin‐Orbit Photonics with Potato Starch Lenses

open access: yesAdvanced Optical Materials, EarlyView.
Native potato starch spherulites are introduced as volumetric optical elements that modulate both dynamic and geometric phases of light. These spherulites focus light and generate optical vortices via spin‐orbit interaction, functioning as polarization‐sensitive microlenses. Their unique radial anisotropy enables applications in vortex beam generation,
Petr Bouchal   +4 more
wiley   +1 more source

Journal of Agricultural Science [PDF]

open access: yesThe Journal of Agricultural Science, 2009
P. Huhtanen, A. N. Hristov
openaire   +1 more source

Improvement of Cu Ablation Efficiency Using GHz‐Burst Femtosecond Laser at 515 nm Wavelength

open access: yesAdvanced Photonics Research, EarlyView.
The green‐wavelength gigahertz (GHz)‐burst mode significantly improves the Cu ablation efficiency due to the interaction of subsequent intra‐pulses in a GHz‐burst with molten Cu. The superiority of the green‐wavelength GHz‐burst mode over the infrared‐wavelength one for a higher performance of Cu ablation at a smaller number of intra‐pulses is ...
Ashkan Momeni   +3 more
wiley   +1 more source

High‐Numerical‐Aperture, 3D‐Printed All‐Dielectric Harmonic Diffraction Metalens in the Sub‐THz Frequency Range

open access: yesAdvanced Photonics Research, EarlyView.
Herein, a compact all‐dielectric metalens operating at dual sub‐THz frequencies is presented, addressing key challenges in terahertz device miniaturization. Utilizing commercial 3D printing, the metalens achieves high numerical aperture and broadband functionality.
Kobi Ben Atar   +2 more
wiley   +1 more source

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