Juan Deng , Kaili Wu , Rao Fu , Zhendong Huang , Chenchen Yang , Fan Gao , Bo Yan
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引用次数: 0
Abstract
As a novel optical element, metalens possess immense potential in the field of optical imaging. However, the development of full-space metalens, particularly those capable of manipulating normal and oblique incidence waves, remains challenging. By embedding 1D photonic crystal into a bilayer nanostructure, we proposed a full-space and wide field-of-view (FOV) metalens, which can independently manipulate reflected and transmitted waves in near-infrared (NIR) band. Simulation results demonstrate that our metalens can achieve good focusing effects in both the reflective and transmissive spaces at two different wavelengths under normal incidence. In addition, the metalens can still operate and maintain a good focusing effect at a wavelength of 1245 nm with an oblique incidence angle of −40° to 40°, at a wavelength of 1515 nm with an oblique incidence angle of −30° to 30°. Our work broadens the degree of freedom, establishes a connection between metasurfaces and photonic crystal, and provides an effective method for designing multifunctional meta-device, thereby demonstrating a huge applications potential in virtual reality (VR), augmented reality (AR) and other related fields.
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