Engineering, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 1, 2024
Language: Английский
Photonics Insights, Journal Year: 2024, Volume and Issue: 3(2), P. R04 - R04
Published: Jan. 1, 2024
Language: Английский
Citations
16
Photonics Insights, Journal Year: 2024, Volume and Issue: 3(3), P. R07 - R07
Published: Jan. 1, 2024
Citations
16
Nanophotonics, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 24, 2025
Abstract The burgeoning demand for high-performance computing, robust data processing, and rapid growth of big necessitates the emergence novel optical devices to efficiently execute demanding computational processes. field meta-devices, such as metamaterial or metasurface, has experienced unprecedented over past two decades. By manipulating amplitude, phase, polarization, dispersion light wavefronts in spatial, spectral, temporal domains, viable solutions implementation all-optical analog computation information processing have been provided. In this review, we summarize latest developments emerging trends meta-devices innovative platforms spatial differentiators processing. Based on general concepts Fourier transform Green’s function, analyze physical mechanisms application amplitude differentiation, phase differentiation their applications image edge detection, enhancement, beam shaping. Finally, explore current challenges potential provide perspectives future research directions possible developments.
Language: Английский
Citations
0
The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown
Published: March 28, 2025
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 17, 2025
Abstract Directly performing optical analog computations and image processing in space, such as differential operations edge detection, is a burgeoning area. To avoid the bulkiness low efficiency of traditional 4 f filtering systems, one can utilize Green's function metasurfaces for advanced wavefront control. However, some metasurface differentiators be hindered by issues like polarization sensitivity, restricted bandwidth, resolution, need additional devices or digital post‐processing, potentially degrading their performance operation efficiency. In this work, dual‐polarization Laplace differentiator engineered to address these based on nonlocal hollow metasurface. The transfer (OTF) required obtained exciting different quasi‐bound states continuum (Q‐BIC) modes with distinct angular dispersion capabilities under p ‐ s ‐polarized illumination, respectively. This not only directly realizes 2D second‐order detection channel but also features numerical aperture (NA) an upper limit close 0.42 broadband range reaching 165 nm. Such efficient, high‐quality bandwidth approach offers powerful imaging techniques applications machine vision, microscopic imaging, processing.
Language: Английский
Citations
0
Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 188, P. 112989 - 112989
Published: April 19, 2025
Language: Английский
Citations
0
Proceedings of the IEEE, Journal Year: 2024, Volume and Issue: 112(8), P. 1000 - 1032
Published: May 2, 2024
Language: Английский
Citations
3
Journal of the Optical Society of America B, Journal Year: 2024, Volume and Issue: 41(11), P. D1 - D1
Published: June 17, 2024
Abrupt autofocusing (AAF) beams, known for their non-diffractive properties, extended focal depth, and self-healing capabilities, are advantageous over conventional Gaussian beams in the biomedical field. Compared to previous method that can only generate a passive AAF beam, we introduce metasurfaces achieve dynamically steered beam at incident wavelength of 532 nm. By rotating two opposite directions an angle θ , both generated position direction be altered. Our theoretical analysis full-wave simulation results confirmed deflection finely adjusted from 11° without significantly affecting length or focusing efficiency. This capability allows precision operation applications, including enhanced laser surgery, optical tweezing, optimized photodynamic therapy.
Language: Английский
Citations
2
Optics Express, Journal Year: 2024, Volume and Issue: 32(12), P. 21293 - 21293
Published: May 14, 2024
Metasurfaces made of subwavelength silicon nanopillars provide unparalleled capacity to manipulate light, and have emerged as one the leading platforms for developing integrated photonic devices. In this study, we report on a compact, passive approach based planar metasurface optics generate large optical trap arrays. The unique configuration is achieved with meta-hologram convert single incident laser beam into an array individual beams, followed up metalens form multiple foci rubidium atom trapping. We experimentally demonstrate two-dimensional arrays 5 × 25 at wavelength 830 nm, validating capability scalability our design. Beam waists ∼1.5 µm, spacings (about 15 µm), low depth variations (8%) relevance quantum control atomic are in robust efficient fashion. presented work highlights stable, scalable platform well-suitable Rydberg-state mediated gate operations, which will further facilitate advances neutral computing.
Language: Английский
Citations
1
Optics Letters, Journal Year: 2024, Volume and Issue: 49(21), P. 6001 - 6001
Published: Sept. 16, 2024
Patterns fabricated with Au nanoparticles (Au NPs) exhibit significant potential in fields such as micro-optics and bioelectronics. However, the current manufacturing methods still suffer from complex processes low efficiency. In this work, we propose a high-speed method for micro-/nanostructures based on spatiotemporal focusing maskless lithography, achieving throughput of 0.5 mm
Language: Английский
Citations
1