Version 1
: Received: 8 July 2024 / Approved: 9 July 2024 / Online: 10 July 2024 (04:23:25 CEST)
How to cite:
Wang, C.; Yu, R.; Ye, Y.; Xiong, C.; Ahmed Khan Khushik, M. H.; Xiao, L. Hybrid Fibers with Subwavelength-Scale Liquid Core for Highly Sensitive Sensing and Enhanced Nonlinearity. Preprints2024, 2024070728. https://doi.org/10.20944/preprints202407.0728.v1
Wang, C.; Yu, R.; Ye, Y.; Xiong, C.; Ahmed Khan Khushik, M. H.; Xiao, L. Hybrid Fibers with Subwavelength-Scale Liquid Core for Highly Sensitive Sensing and Enhanced Nonlinearity. Preprints 2024, 2024070728. https://doi.org/10.20944/preprints202407.0728.v1
Wang, C.; Yu, R.; Ye, Y.; Xiong, C.; Ahmed Khan Khushik, M. H.; Xiao, L. Hybrid Fibers with Subwavelength-Scale Liquid Core for Highly Sensitive Sensing and Enhanced Nonlinearity. Preprints2024, 2024070728. https://doi.org/10.20944/preprints202407.0728.v1
APA Style
Wang, C., Yu, R., Ye, Y., Xiong, C., Ahmed Khan Khushik, M. H., & Xiao, L. (2024). Hybrid Fibers with Subwavelength-Scale Liquid Core for Highly Sensitive Sensing and Enhanced Nonlinearity. Preprints. https://doi.org/10.20944/preprints202407.0728.v1
Chicago/Turabian Style
Wang, C., Muhammad Hanif Ahmed Khan Khushik and Limin Xiao. 2024 "Hybrid Fibers with Subwavelength-Scale Liquid Core for Highly Sensitive Sensing and Enhanced Nonlinearity" Preprints. https://doi.org/10.20944/preprints202407.0728.v1
Abstract
Interest grows in designing silicon-on-insulator slot waveguides to trap optical fields in subwavelength-scale slots and developing their optofluidic devices. However, it is worth noting that the inherent limitations of the waveguide structures may result in high optical losses and short optical paths, which challenge the device performance in optofluidics. Incorporating the planar silicon-based slot waveguide concept into a silica-based hollow-core fiber can provide a perfect solution to realize an efficient optofluidic waveguide. Here we propose a subwavelength-scale liquid-core hybrid fiber (LCHF), where the core is filled with carbon disulfide and surrounded by a silicon ring in a silica background. The waveguide properties and the Stimulated Raman Scattering (SRS) effect in the LCHF are investigated. The fraction of power inside the core of 56.3% allows an improved sensitivity in optical sensing; while the modal Raman gain of 23.60 m-1·W-1 is 2 times larger than that generated around a nano fiber with the interaction between the evanescent optical field and the surrounding Raman media benzene-methanol, which enables a significant low-threshold SRS effect. Besides, this in-fiber structure features compactness, robustness, flexibility, ease of implementation in both trace sample consumption and reasonable liquid filling duration, as well as compatibility with optical fiber systems. The detailed analyses of the properties and utilizations of the LCHF suggest a promising in-fiber optofluidic platform, which provides a novel insight into optofluidic devices, optical sensing, nonlinear optics, etc.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
