Natalie V. Wheeler
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View article: Raman gas sensing technology: A new horizon?
Raman gas sensing technology: A new horizon? Open
The question in the title alludes to the importance of comprehending the relevance and manner of operation in the field of gas sensors, which is undeniably one of the most important scientific and economic interests. Despite being superior…
View article: Reduced loss and bend sensitivity in hermetically-sealed hollow-core fiber gas cells using gas-induced differential refractive index
Reduced loss and bend sensitivity in hermetically-sealed hollow-core fiber gas cells using gas-induced differential refractive index Open
Hollow-core optical fiber (HCF) gas cells are an attractive option for many applications including metrology and non-linear optics due to the enhanced gas-light interaction length in a compact and lightweight format. Here, we report the fi…
View article: Microlens Hollow-Core Fiber Probes for Operando Raman Spectroscopy
Microlens Hollow-Core Fiber Probes for Operando Raman Spectroscopy Open
We introduce a flexible microscale all-fibre-optic Raman probe which can be embedded into devices to enable operando in-situ spectroscopy. The facile-constructed probe is composed of a nested anti-resonant nodeless hollow-core fibre combin…
View article: Transient gas-induced differential refractive index effects in as-drawn hollow core optical fibers
Transient gas-induced differential refractive index effects in as-drawn hollow core optical fibers Open
When a hollow core fiber is drawn, the core and cladding holes within the internal cane geometry are pressurized with an inert gas to enable precise control over the internal microstructure of the fiber and counteract surface tension force…
View article: Double-Clad Antiresonant Hollow-Core Fiber and Its Comparison with Other Fibers for Multiphoton Micro-Endoscopy
Double-Clad Antiresonant Hollow-Core Fiber and Its Comparison with Other Fibers for Multiphoton Micro-Endoscopy Open
Label-free and multiphoton micro-endoscopy can transform clinical histopathology by providing an in situ tool for diagnostic imaging and surgical treatment in diseases such as cancer. Key to a multiphoton imaging-based micro-endoscopic dev…
View article: Hollow‐Core Fiber: Breaking the Nonlinearity Limits of Silica Fiber in Long‐Distance Green Laser Pulse Delivery
Hollow‐Core Fiber: Breaking the Nonlinearity Limits of Silica Fiber in Long‐Distance Green Laser Pulse Delivery Open
Hollow‐core fiber (HCF), in which >99.99% of the light is guided in a central air (or vacuum) filled core, is a radically new fiber technology offering the potential to overcome the nonlinear limits associated with the delivery of high‐bri…
View article: Double Clad Antiresonant Hollow Core Fiber and Its Comparison with other Fibres for Multiphoton Micro-Endoscopy
Double Clad Antiresonant Hollow Core Fiber and Its Comparison with other Fibres for Multiphoton Micro-Endoscopy Open
In this work, we study a new hollow-core (air-filled) double-clad anti-resonant fiber (DC-ARF) as a potent candidate for multiphoton micro-endoscopy. We compare the fiber characteristics with a single-clad anti-resonant fiber (SC-ARF) and …
View article: Fiber-delivered heterodyne spectroscopy with a mid-infrared frequency comb
Fiber-delivered heterodyne spectroscopy with a mid-infrared frequency comb Open
By exploiting the excellent short-term phase stability between consecutive pulses from a free-running optical parametric oscillator frequency comb, we report the first example of hollow-core fiber-delivered heterodyne spectroscopy in the 3…
View article: All-fiber hollow-core fiber gas cell
All-fiber hollow-core fiber gas cell Open
We present a hollow-core fiber (HCF) gas cell with light launched and collected via standard solid-glass core single-mode fibers (SMFs). Gas delivery is realized via a 100μm gap between the SMF and HCF with light low-loss coupling optimize…
View article: Sub-ppm gas phase Raman spectroscopy in an anti-resonant hollow core fiber
Sub-ppm gas phase Raman spectroscopy in an anti-resonant hollow core fiber Open
We demonstrate recent progress in the development of a Raman gas sensor using a single cladding ring anti-resonant hollow core micro-structured optical fiber (HC-ARF) and a low power pump source. The HC-ARF was designed specifically for lo…
View article: Hundred-meter-scale, kilowatt peak-power, near-diffraction-limited, mid-infrared pulse delivery via the low-loss hollow-core fiber
Hundred-meter-scale, kilowatt peak-power, near-diffraction-limited, mid-infrared pulse delivery via the low-loss hollow-core fiber Open
We report a high-power single-mode mid-infrared (MIR) pulse delivery system via anti-resonant hollow-core fiber (HCF) with a record delivery distance of 108 m. Near-diffraction-limited MIR light was transmitted by HCFs at wavelengths of 3.…
View article: Transient differential pressure-induced loss variation in as-drawn hollow core optical fibres
Transient differential pressure-induced loss variation in as-drawn hollow core optical fibres Open
We demonstrate transient changes in the optical properties, specifically the loss, of antiresonant hollow core fibres (HCFs) due to a combination of the sub-atmospheric gas pressure inside the fibre holes post-fabrication and the subsequen…
View article: Data accompanying "Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands"
Data accompanying "Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands" Open
This dataset contains measurement data and processing scripts (Matlab) for the results presented in "Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands". The …
View article: Data accompanying "Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands"
Data accompanying "Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands" Open
This dataset contains measurement data and processing scripts (Matlab) for the results presented in "Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands". The …
View article: Internal Gas Composition and Pressure in As-drawn Hollow Core Optical Fibers
Internal Gas Composition and Pressure in As-drawn Hollow Core Optical Fibers Open
We present a study into the gas pressure and composition within a hollow core optical fiber immediately after fabrication. Results from three different experimental techniques indicate that the initial absolute pressure inside of the hollo…
View article: Hollow-core fiber delivery of broadband mid-infrared light for remote spectroscopy
Hollow-core fiber delivery of broadband mid-infrared light for remote spectroscopy Open
High-resolution multi-species spectroscopy is achieved by delivering broadband 3–4-μm mid-infrared light through a 4.5-meter-long silica-based hollow-core optical fiber. Absorptions from H 37 Cl, H 35 Cl, H 2 O and CH 4 present in the gas …
View article: Activating Unconventional Wavelength Bands for Coherent Optical Communication by On-chip Continuous Spectral Translation
Activating Unconventional Wavelength Bands for Coherent Optical Communication by On-chip Continuous Spectral Translation Open
Despite being perceived historically to provide "unlimited" bandwidth, today’s optical communication systems are fast approaching their capacity limits in the conventional telecom bands. To satisfy the ever-increasing capacity demand, open…
View article: Development of a gas‐phase Raman instrument using a hollow core anti‐resonant tubular fibre
Development of a gas‐phase Raman instrument using a hollow core anti‐resonant tubular fibre Open
Versatile and flexible gas analysis for compositional identification and quantification is a demand found in a variety of diverse sectors. As such, a compact, deployable instrument exhibiting both high specificity and sensitivity is a high…
View article: Gas-induced differential refractive index enhanced guidance in hollow-core optical fibers
Gas-induced differential refractive index enhanced guidance in hollow-core optical fibers Open
Hollow-core fibers (HCFs) are a potentially transformative fiber technology, where light is confined within a hollow core surrounded by a cladding composed of air holes defined by glass membranes. Dramatic reductions in the minimum losses …
View article: Optical Fibers: Materials and Applications
Optical Fibers: Materials and Applications Open
This is an introduction to the feature issue of Optical Materials Express on Optical Fibers: Materials and Applications .
View article: Optical Fibers: Materials and Applications
Optical Fibers: Materials and Applications Open
This is an introduction to the feature issue of Optical Materials Express on Optical Fibers: Materials and Applications.
View article: Supplementary document for Gas-induced differential refractive index guidance in hollow-core optical fibers - 5237028.pdf
Supplementary document for Gas-induced differential refractive index guidance in hollow-core optical fibers - 5237028.pdf Open
Revised supplementary document
View article: Extruded Antiresonant Hollow Core Fibers for Mid-IR Laser Delivery
Extruded Antiresonant Hollow Core Fibers for Mid-IR Laser Delivery Open
We report an overview of our recent progress in the design and fabrication of soft-glass based antiresonant hollow core fibers (AR-HCFs) for laser delivery in the mid-IR (5-11 μm). The fibers are fabricated by extrusion and subsequent draw…
View article: Dataset for: Extruded Tellurite Antiresonant Hollow Core Fiber for Mid-IR Operation
Dataset for: Extruded Tellurite Antiresonant Hollow Core Fiber for Mid-IR Operation Open
This dataset supports the publication: Ventura, Andrea et al (2020). Extruded tellurite antiresonant hollow core fiber for Mid-IR operation. Optics Express. https://doi.org/10.1364/OE.390517
View article: Extruded tellurite antiresonant hollow core fiber for Mid-IR operation
Extruded tellurite antiresonant hollow core fiber for Mid-IR operation Open
We report the first extruded tellurite antiresonant hollow core fibers (HC-ARFs) aimed at the delivery of mid-infrared (Mid-IR) laser radiation. The preform extrusion fabrication process allowed us to obtain preforms with non-touching capi…
View article: Recent breakthroughs in hollow core fiber technology
Recent breakthroughs in hollow core fiber technology Open
Flexible dielectric optical fibers guiding light in a hollow core were conceptually imagined at the end of the 19th century, but first demonstrated in practice about 2 decades ago. Since then, many geometric variants have been described an…
View article: Anti-Resonant, Mid-Infrared Silica Hollow-Core Fiber
Anti-Resonant, Mid-Infrared Silica Hollow-Core Fiber Open
In this paper we report the fabrication and characterization of a silica anti-resonant hollow-core fiber which shows guidance to 5.9µm and record low loss between 4.3 and 5.2µm despite a low glass jacket thickness.
View article: Dataset for Tubular anti-resonant hollow core fiber for visible Raman spectroscopy
Dataset for Tubular anti-resonant hollow core fiber for visible Raman spectroscopy Open
This dataset supports the publication: AUTHORS:Ian A. Davidson, Matthew Partridge, John R. Hayes, Yong Chen, Thomas D. Bradley, Hesham Sakr, Shuichiro Rikimi, Gregory T. Jasion, Eric Numkam Fokoua, Marco Petrovich, Francesco Poletti, David…
View article: Dataset for: Interband Short Reach Data Transmission in Ultrawide Bandwidth Hollow Core Fiber
Dataset for: Interband Short Reach Data Transmission in Ultrawide Bandwidth Hollow Core Fiber Open
This dataset supports the publication: Sakr, H. et a. (2019). Interband Short Reach Data Transmission in Ultrawide Bandwidth Hollow Core Fiber. Journal of Lightwave Technology.We report a Nested Antiresonant Nodeless hollow-core Fiber (NAN…