Results 191 to 200 of about 7,298 (262)

Cross‐Scale Synergistic Optimization for Miniature Meta‐Liquid Hybrid Zoom Imaging

open access: yesNanophotonics, Volume 15, Issue 13, 13 July 2026.
A physically constrained optimization framework links electrowetting liquid lenses and metasurface dispersion engineering to realize a compact visible‐band achromatic zoom imager. By co‐optimizing zoom actuation, meta‐atom manufacturability, and system aberrations, the design achieves 1.5x zoom in a 15.5 mm track and clarifies robustness against ...
Zhuoxuan Fan   +10 more
wiley   +1 more source

Nanophotonic Design of Germanium‐Silicon Single‐Photon Detectors for Integrated Quantum Photonic Circuits

open access: yesNanophotonics, Volume 15, Issue 13, 13 July 2026.
Nanophotonic Ge/Si single‐photon avalanche detectors (SPADs) employing photonic‐crystal‐enhanced optical confinement and a separate absorption–multiplication (SAM) architecture enable near‐unity internal quantum efficiency, low dark current, sub‐50 ps temporal response, and efficient telecom‐band single‐photon detection.
Kuldeep Singh   +4 more
wiley   +1 more source

Wavelength and Polarization Multiplexed Nonlocal Metasurface for Quantitative Phase Microscopy

open access: yesNanophotonics, Volume 15, Issue 13, 13 July 2026.
A nonlocal metasurface with wavelength and polarization multiplexed optical transfer functions is demonstrated for performing quantitative phase imaging. The metasurface uses the angular dispersion of optical routing guided mode resonances to extract phase gradient information along different directions for phase retrieval. ABSTRACT Imaging transparent
Haiwei Wang   +8 more
wiley   +1 more source

Photon Recycling–Driven Photodetection Enhancement in Ni(AcO)2–MAPbBr3 Nanocomposite Waveguides

open access: yesNanophotonics, Volume 15, Issue 13, 13 July 2026.
Photon recycling is demonstrated as an effective mechanism to enhance perovskite photodetector performance. A Ni(AcO)2/MAPbBr3 nanocomposite waveguide enables long‐range propagation and reabsorption of photoluminescence photons, increasing photocurrent by ∼60%. Under pulsed excitation, reabsorption of amplified spontaneous emission further enhances the
Sandra Soriano‐Díaz   +6 more
wiley   +1 more source

High‐Resolution Laser‐Induced Forward Transfer of Graphene and Graphene/hBN Heterostructures Onto SiN Photodetector Patterns

open access: yesphysica status solidi (a), Volume 223, Issue 13, 8 July 2026.
Laser‐Induced Forward Transfer enables the maskless, high‐resolution integration of graphene and graphene/hBN pixels onto SiN photodetector architectures. Optimized laser processing preserves graphene quality while allowing transfer down to the 15 μm scale and across complex topographies, establishing a selective, mask‐free route toward straightforward
Katerina Magoula   +7 more
wiley   +1 more source

Optical Fourier Surfaces for Integrated Photonics. [PDF]

open access: yesACS Nano
Petter D   +10 more
europepmc   +1 more source

Low‐Profile, High‐Gain GRIN RF Lenses via Multi‐Material Vat Photopolymerization

open access: yesAdvanced Functional Materials, Volume 36, Issue 53, 2 July 2026.
We investigate the opportunity of leveraging multi‐material vat photopolymerization printing to manufacture intricate lenses exhibiting permittivity gradients that can increase signal gain in transmitted radiofrequency signals in the X‐ and Ku‐bands. Lenses produced with more distinct low‐loss materials (up to 5) can deliver an 18 dB signal gain with a
Lawrence Romangsuriat   +3 more
wiley   +1 more source

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