Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/90884
Title: | Endless single-mode photonics crystal fiber metalens for broadband and efficient focusing in near-infrared range | Authors: | Zhao, Q Qu, J Peng, GD Yu, C |
Issue Date: | Feb-2021 | Source: | Micromachines, Feb. 2021, v. 12, no. 2, 219 | Abstract: | The advent of the lab-on-fiber concept has boosted the prosperity of optical fiber-based platforms integrated with nanostructured metasurface technology which are capable of controlling the light at the nanoscale for multifunctional applications. Here, we propose an endless single-mode large-mode-area photonic crystal fiber (LMA-PCF) integrated metalens for broadband and efficient focusing from 800 to 1550 nm. In the present work, the optical properties of the substrate LMA-PCF were investigated, and the metalens, consisting of dielectric TiO2 nanorods with varying radii, was elaborately designed in the fiber core region with a diameter of 48 μm to cover the required phase profile for efficient focusing with a high transmission. The focusing characteristics of the designed metalens were also investigated in detail over a wide wavelength range. It is shown that the in-fiber metalens is capable of converging the incident beams into the bright, symmetric, and legible focal spots with a large focal length of 315-380 μm depending on the operating wavelength. A high and average focusing efficiency of 70% was also obtained with varying wavelengths. It is believed the proposed fiber metalens may show great potential in applications including fiber laser configuration, machining, and fiber communication. | Keywords: | Broadband Fiber-integrated device Focusing efficiency Metalens Optical fiber |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Micromachines | EISSN: | 2072-666X | DOI: | 10.3390/mi12020219 | Rights: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). The following publication Zhao, Q.; Qu, J.; Peng, G.; Yu, C. Endless Single-Mode Photonics Crystal Fiber Metalens for Broadband and Efficient Focusing in NearInfrared Range. Micromachines 2021, 12, 219 is available at https://doi.org/10.3390/mi12020219 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
micromachines-12-00219-v2.pdf | 3.23 MB | Adobe PDF | View/Open |
Page views
55
Last Week
0
0
Last month
Citations as of May 5, 2024
Downloads
23
Citations as of May 5, 2024
SCOPUSTM
Citations
9
Citations as of Apr 26, 2024
WEB OF SCIENCETM
Citations
6
Citations as of May 2, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.