Fabrication of Tapered Tip Fibers With a Controllable Cone Angle Using Dynamical Etching

Nikbakht, Hamed; Latifi, Hamid; Oraie, Mohammadreza; Amini, Tahereh

doi:10.1109/jlt.2015.2453365

Cited by 16 publications

(7 citation statements)

References 23 publications

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“…In experiment, the dynamic chemical etching method has been used for fabricating dielectric fiber tip with predetermined cone angles. [ 42 ] The diameter, length, and cone angle of the fiber tip can be controlled by changing the flow rate of the acid injection or withdrawal. As far as we know, the glancing angle deposition is used to coat different nanoscale metal films on the surface.…”

Section: Resultsmentioning

confidence: 99%

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Minin

Liu²,

Tuchin

et al. 2020

Journal of Biophotonics

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Structured light have made deep impacts on modern biotechnology and clinical practice, with numerous optical systems and lasers currently being used in medicine to treat disease. We demonstrate a new concept of fiber‐based optical hook scalpel. The subwavelength photonic hook is obtained in the vicinity of a shaped fiber tip with asymmetric radiation. A 1550 nm continuous‐wave source, commonly used for medical imaging, has been required. Photonic hook with a lateral feature size less than the half‐wavelength is achieved using a hemispherical shaped fiber tip with metallic mask. This breakthrough is carried out in ambient air by using a 4‐μm‐diameter fiber with a shaped tip. A good correlation is observed between the computed intensity distribution of photonic hook and the tip sizes. Photonic hook generated with a shaped fiber tip, easier to manipulate, shows far‐reaching benefits for potential applications such as ophthalmic laser surgery, super‐resolution microscopy, photolithography and material processing.

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Section: Resultsmentioning

confidence: 99%

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Minin

Liu²,

Tuchin

et al. 2020

Journal of Biophotonics

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“…The ONFT has been fabricated using HF acid and protective silicone oil. 23,24 A syringe pump regulated the meniscus height on the etchant's surface, resulting in the desired cone angle. Dynamic selective etching was used to demonstrate a parabolic shape optical nanofiber probe, and the fiber tip showed an improved transmission.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, a few modifications have been demonstrated in the chemical etching technique. The ONFT has been fabricated using HF acid and protective silicone oil 23 , 24 . A syringe pump regulated the meniscus height on the etchant’s surface, resulting in the desired cone angle.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of optical nanofiber tips

Bashaiah,

Yalla

2024

J. Nanophoton.

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“…Although extrinsic interaction of the light with the surrounding media is possible, the use of the evanescent portion of the guided wave offers some advantages. Exposure of the optical wave to the surrounding media in specific sections of the optical fibers is usually done by two alternatives [1][2][3][4][5]: removing the cladding material, or upon tapering a section of the optical fiber. The latter is the preferred approach to expose the evanescent wave since it involves a simple and reproducible process yielding low-loss devices.…”

Section: Introductionmentioning

confidence: 99%

Functional Tapered Fiber Devices Using Polymeric Coatings

González-Cortez¹,

Carrillo-Betancourt²,

Hernández‐Cordero³

et al. 2021

Fiber Optics - Technology and Applications

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A wide variety of fiber devices can be created by adding special coatings on tapered sections of optical fibers. In this work we present the fundamentals for the fabrication of tapered optical fibers coated with functional polymers. The required aspects of light propagation in tapered sections of optical fibers are introduced and the relevant parameters enabling light interaction with external media are discussed. A special case of interest is the addition of polymeric coatings with prescribed thicknesses in the tapered sections allowing for adjusting the light propagation features. We assess the use of liquid polymer coatings with varying thicknesses along the taper profile that can be tailored for tuning the transmission features of the devices. Hence, we introduce a methodology for obtaining coatings with predefined geometries whose optical properties will depend on the polymer functionality. As demonstrated with numerical simulations, the use of functional polymer coatings in tapered optical fibers allows for obtaining a wide variety of functionalities. Thus, controlled polymer coating deposition may provide a simple means to fabricate fiber devices with adjustable transmission characteristics.

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Fabrication of Tapered Tip Fibers With a Controllable Cone Angle Using Dynamical Etching

Cited by 16 publications

References 23 publications

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Fabrication and characterization of optical nanofiber tips

Functional Tapered Fiber Devices Using Polymeric Coatings

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