Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers

Kerrianne Harrington; Robbie Mears; Jim M. Stone; William K. Wadsworth; Jonathan C. Knight; Tim A. Birks

doi:10.1364/OE.537473

Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers

Kerrianne Harrington, Robbie Mears, Jim M. Stone, William K. Wadsworth, Jonathan C. Knight, Tim A. Birks

Research output: Contribution to journal › Article › peer-review

Abstract

We have observed unexpected spectral attenuation of ultraviolet light in freshly drawn hollow core optical fibers. When the fiber ends are left open to atmosphere, this loss feature dissipates over time. The loss matches the absorption spectrum of gaseous (molecular) chlorine and, given enough time, the transmission spectrum of the fiber recovers to that expected from the morphological structure of the fiber. Our measurements indicate an initial chlorine concentration of 0.45 µmol/cm3 in the hollow core, equivalent to 1.1 mol% Cl2 at atmospheric pressure.

Original language	English
Pages (from-to)	38072-38076
Number of pages	5
Journal	Optics Express
Volume	32
Issue number	22
Early online date	7 Oct 2024
DOIs	https://doi.org/10.1364/OE.537473
Publication status	Published - 21 Oct 2024

Data Availability Statement

The relevant data is available from [12].

12. K. Harrington, R. Mears, J. Stone, et al., “Dataset for ‘Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibres’,” University of Bath Research Data Archive (2024), https://doi.org/10.15125/BATH-01423.

Funding

Engineering and Physical Sciences Research Council - EP/T020903/1

Funders	Funder number
Engineering and Physical Sciences Research Council	EP/T020903/1
Engineering and Physical Sciences Research Council

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10.1364/OE.537473Licence: CC BY

Cite this

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title = "Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers",

abstract = "We have observed unexpected spectral attenuation of ultraviolet light in freshly drawn hollow core optical fibers. When the fiber ends are left open to atmosphere, this loss feature dissipates over time. The loss matches the absorption spectrum of gaseous (molecular) chlorine and, given enough time, the transmission spectrum of the fiber recovers to that expected from the morphological structure of the fiber. Our measurements indicate an initial chlorine concentration of 0.45 µmol/cm3 in the hollow core, equivalent to 1.1 mol% Cl2 at atmospheric pressure.",

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AU - Harrington, Kerrianne

AU - Mears, Robbie

AU - Stone, Jim M.

AU - Wadsworth, William K.

AU - Knight, Jonathan C.

AU - Birks, Tim A.

PY - 2024/10/21

Y1 - 2024/10/21

N2 - We have observed unexpected spectral attenuation of ultraviolet light in freshly drawn hollow core optical fibers. When the fiber ends are left open to atmosphere, this loss feature dissipates over time. The loss matches the absorption spectrum of gaseous (molecular) chlorine and, given enough time, the transmission spectrum of the fiber recovers to that expected from the morphological structure of the fiber. Our measurements indicate an initial chlorine concentration of 0.45 µmol/cm3 in the hollow core, equivalent to 1.1 mol% Cl2 at atmospheric pressure.

AB - We have observed unexpected spectral attenuation of ultraviolet light in freshly drawn hollow core optical fibers. When the fiber ends are left open to atmosphere, this loss feature dissipates over time. The loss matches the absorption spectrum of gaseous (molecular) chlorine and, given enough time, the transmission spectrum of the fiber recovers to that expected from the morphological structure of the fiber. Our measurements indicate an initial chlorine concentration of 0.45 µmol/cm3 in the hollow core, equivalent to 1.1 mol% Cl2 at atmospheric pressure.

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U2 - 10.1364/OE.537473

DO - 10.1364/OE.537473

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EP - 38076

JO - Optics Express

JF - Optics Express

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ER -

Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers

Abstract

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Dataset for "Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibres"

Cite this

Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers

Abstract

Data Availability Statement

Funding

Access to Document

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Fingerprint

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Dataset for "Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibres"

Cite this