Top-down approach to fiber-top cantilevers

Gavan, Khashayar Babaei; Rector, J.H.; Heeck, K.; Chavan, D.C.; Gruca, Grzegorz; Oosterkamp, Tjerk H.; Iannuzzi, Davide

doi:10.1364/ol.36.002898

Cited by 25 publications

(18 citation statements)

References 15 publications

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“…After the identification and assessment of the initial fabrication routes, research attention focused on devices with new functionalities and unparalleled performance. Successful integrations onto the optical fibers of plasmonic nanostructures [ 36 , 37 ], photonic crystals [ 38 ], ring resonators [ 39 ], optomechanical microcavities [ 40 ], metallodielectric nanoarchitectures [ 41 , 42 , 43 ], and dielectric block surface-wave resonators [ 44 ] were recently reported. These first proofs of concept provide the basis for the development of multifunctional LOF platforms, such as plasmonic label-free optical fiber nanosensors [ 43 , 45 , 46 ], SERS nanoprobes [ 33 , 47 ], advanced photonic nanoresonators [ 39 , 44 ], ultrahigh-sensitivity acoustic transducers [ 48 ], optical fiber tweezers [ 49 , 50 ], and optical fiber metatips [ 51 ].…”

Section: Lab-on-fiber Concept: a Technological Roadmapmentioning

confidence: 99%

Lab-On-Fiber Technology: A Roadmap toward Multifunctional Plug and Play Platforms

Pisco

Cusano

2020

Sensors

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This review presents an overview of the “lab-on-fiber technology” vision and the main milestones set in the technological roadmap to achieve the ultimate objective of developing flexible, multifunctional plug and play fiber-optic platforms designed for specific applications. The main achievements, obtained with nanofabrication strategies for unconventional substrates, such as optical fibers, are discussed here. The perspectives and challenges that lie ahead are highlighted with a special focus on full spatial control at the nanoscale and high-throughput production scenarios. The rapid progress in the fabrication stage has opened new avenues toward the development of multifunctional plug and play platforms, discussed here with particular emphasis on new functionalities and unparalleled figures of merit, to demonstrate the potential of this powerful technology in many strategic application scenarios. The paper also analyses the benefits obtained from merging lab-on-fiber (LOF) technology objectives with the emerging field of optomechanics, especially at the microscale and the nanoscale. We illustrate the main advances at the fabrication level, describe the main achievements in terms of functionalities and performance, and highlight future directions and related milestones. All achievements reviewed and discussed clearly suggest that LOF technology is much more than a simple vision and could play a central role not only in scenarios related to diagnostics and monitoring but also in the Information and Communication Technology (ICT) field, where optical fibers have already yielded remarkable results.

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Section: Lab-on-fiber Concept: a Technological Roadmapmentioning

confidence: 99%

Lab-On-Fiber Technology: A Roadmap toward Multifunctional Plug and Play Platforms

Pisco

Cusano

2020

Sensors

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“…Subsequently, the same group proposed the use of a borosilicate glass ferrule to fabricate a cantilever suspended on the OF tip using a ps-laser ablation tool 26 , 27 . In addition, a top-down approach via align-and-shine photolithography 28 was proposed to fabricate low-mass gold fibre-top cantilevers. Following these technological improvements, a wide variety of sensors has been demonstrated 29 – 33 .…”

Section: Introductionmentioning

confidence: 99%

Opto-mechanical lab-on-fibre seismic sensors detected the Norcia earthquake

Pisco

Bruno

Galluzzo

et al. 2018

Sci Rep

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We have designed and developed lab-on-fibre seismic sensors containing a micro-opto-mechanical cavity on the fibre tip. The mechanical cavity is designed as a double cantilever suspended on the fibre end facet and connected to a proof mass to tune its response. Ground acceleration leads to displacement of the cavity length, which in turn can be remotely detected using an interferometric interrogation technique. After the sensors characterization, an experimental validation was conducted at the Italian National Institute of Geophysics and Volcanology (INGV), which is responsible for seismic surveillance over the Italian country. The fabricated sensors have been continuously used for long periods to demonstrate their effectiveness as seismic accelerometer sensors. During the tests, fibre optic seismic accelerometers clearly detected the seismic sequence that culminated in the severe Mw6.5 Norcia earthquake that struck central Italy on October 30, 2016. The seismic data provided by the optical sensors were analysed by specialists at the INGV. The wave traces were compared with state-of-the-art traditional sensors typically incorporated into the INGV seismic networks. The comparison verifies the high fidelity of the optical sensors in seismic wave detection, indicating their suitability for a novel class of seismic sensors to be employed in practical scenarios.

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“…However, in some fabrication methodologies finesse can be enhanced through use of additional coatings. The physical fabrication approaches reported thus far have included picosecond-laser machining [4], focused ion beam [9], wire-cut micromachining [6] and photolithography [10].…”

Section: Introductionmentioning

confidence: 99%

Integrated Optical Fiber-Tip Cantilevers

et al. 2017

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A microcantilever at the end face of an integrated optical fiber is reported, fabrication is uniquely achieved using a precision dicing saw. The methodology is a single-step rapid process, capable of achieving trenches with high aspect ratio (>10:1). The platform on which fabrication is made is a monolithic, integrated optical fiber. This integrally fuses optical fiber to a planar substrate using flame hydrolysis deposition (FHD) and high temperature consolidation (>1000 o C). This paper is the first report of a fiber-tip cantilever using the technique and this integrated platform. As an approach to quantify the optical response of such a multicavity arrangement, a method using Mason's rule is presented. This is used to infer the spectral responses of individual cavities formed and through physical actuation, an estimation of the cantilever's spring constant is made.

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Top-down approach to fiber-top cantilevers

Cited by 25 publications

References 15 publications

Lab-On-Fiber Technology: A Roadmap toward Multifunctional Plug and Play Platforms

Lab-On-Fiber Technology: A Roadmap toward Multifunctional Plug and Play Platforms

Opto-mechanical lab-on-fibre seismic sensors detected the Norcia earthquake

Integrated Optical Fiber-Tip Cantilevers

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