Visible-light uniform and unidirectional grating-based antennas for integrated optical phased arrays
Year: 2024
Type: article
Abstract: Integrated optical phased arrays (OPAs) have emerged as a promising technology for various applications due to their ability to dynamically control free-space optical beams in a compact and non-mechanical manner. While integrated OPAs have traditionally focused on the infrared spectrum, advancements in visible-light integrated OPAs have been relatively limited despite their potential benefits for applications such as displays, 3D printing, trapped-ion quantum systems, underwater communications, and optogenetics. Moreover, integrated visible-light grating-based optical antennas, one of the crucial devices that forms a visible-light integrated OPA, have been relatively underexplored, especially for more advanced designs. In this paper, we address this gap by providing a thorough explanation of the design principles for integrated visible-light grating-based antennas and applying them to design and experimentally demonstrate five different antennas with varying advanced capabilities, including the first visible-light unidirectionally-emitting grating-based antennas for integrated OPAs. Specifically, we develop and experimentally demonstrate integrated visible-light exponentially-emitting single-layer, uniformly-emitting single-layer, exponentially-emitting dual-layer, uniformly-emitting dual-layer, and unidirectionally-emitting dual-layer grating-based antennas. This work aims to provide a thorough design guide for integrated visible-light grating-based antennas, facilitating future widespread use of integrated OPAs for new and emerging visible-light applications.
Source: Optics Express
DOI: 10.1364/oe.540886
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4404090039