Gallium arsenide metasurfaces for multiple vortex beam deflections at visible

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-02-24 DOI:10.1016/j.optlastec.2025.112645

Meng-Hsin Chen, Cyun-Yu Lin

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引用次数: 0

Abstract

The development of metasurfaces capable of producing highly deflected beams is extremely desirable for applications requiring large numerical apertures (NAs) and wide fields of view (FOVs). Such performance demands the fabrication development of meta-structures composed of high-refractive-index, high-aspect-ratio dielectric materials. Furthermore, optical vortex beams (VBs), a fundamental aspect of structured light, have garnered significant attention for their diverse applications. In this work, high-aspect-ratio GaAs meta-structures have been successfully developed to realize multifunctional metasurfaces capable of generating vortex beams and Gaussian beams with deflection angles as high as 75° relative to the optical axis under a normal incidence wavelength of 650 nm, operating in reflective mode. In addition, the broadband characteristics of these multifunctional GaAs metasurfaces have also been demonstrated, pointing out their potential to enable sophisticated structured light generation at high deflection angles. These findings pave the way for future advancements in optical systems requiring compact, versatile, and high-performance metasurfaces.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems