Self-assembled sub-picoliter liquid periodic structures in a hollow optical fiber

In an experimental exploration, we successfully implemented a self-assembling methodology to construct a periodic liquid-air structure inside a hollow optical fiber (HOF). This fiber comprises a central air hole, a germanosilica ring core, and a silica cladding. A periodic structure of liquid drople...

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Bibliographic Details
Published in:Scientific reports 2024-10, Vol.14 (1), p.26210-9, Article 26210
Main Authors: An, Sohee, Jeong, Sunghoon, Hwang, Jihyun, Jung, Yongmin, Kim, Jongki, Oh, Kyunghwan
Format: Article
Language:English
Subjects:
639/624/1075/187
639/624/1111/1117
Air temperature
Band-rejection filter
Electric fields
Heat
Hollow optical fiber
Humanities and Social Sciences
Interdisciplinary aspects
Microscopic heat source
multidisciplinary
Optical properties
Periodic liquid-air structure
Periodicity
Phase transitions
Physics
Polymers
Science
Science (multidisciplinary)
Silica
Sub-picoliter
Viscosity
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Summary:In an experimental exploration, we successfully implemented a self-assembling methodology to construct a periodic liquid-air structure inside a hollow optical fiber (HOF). This fiber comprises a central air hole, a germanosilica ring core, and a silica cladding. A periodic structure of liquid droplets and air was obtained by the application of a microscopic heat source (MHS) traversing along the axial direction of the liquid-filled HOF. In the course of this study, we discerned three distinct zones within the structure. The first zone, referred to as Zone 1, demonstrated near-constant periodicity. The second zone, Zone 2, exhibited adaptable properties with regard to its periodicity, allowing it to be flexibly controlled. In the third zone, Zone 3, we noticed a chaotic response to external parameters, including temperature and the speed at which MHS was traversed. To regulate the liquid-air periodic structures, two different types of MHSs were utilized - a micro hydro-oxygen torch and a metal ring heater, each mounted on a translation stage. The study provides a detailed account of the parameters employed in utilizing these MHSs. Additionally, the optical properties of these liquid-air periodic structures were meticulously analyzed to explore the potential for developing new optofluidic applications.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-75961-6