Prof. John L. Holdsworth Profile

Prof. John L. Holdsworth

Honorary Associate Professor at Univ of Newcastle

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Author

Publications (13)

Proceedings Article | 30 December 2019 Paper

Polarized spatio-spectral mapping of supercontinua generated in microstructured optical fibre

John Holdsworth, Luke McCourt, Samuel Legge

Proceedings Volume 11200, 112001K (2019) https://doi.org/10.1117/12.2539906

KEYWORDS: Solitons, Structured optical fibers, Dispersion, Polarization, Near infrared, Raman spectroscopy, Phase matching, Supercontinuum generation, Light wave propagation, Visible radiation

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Proceedings Article | 28 July 2017 Paper

The volume scanner optical performance

Elham Vafa, John Holdsworth, Galiya Sharafutdinova, Stefan Andersson-Engels

Proceedings Volume 10412, 1041207 (2017) https://doi.org/10.1117/12.2285313

KEYWORDS: Diffuse optical imaging, Imaging systems, Mammography, 3D scanning

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Proceedings Article | 24 November 2016 Paper

A volume scanner for diffuse imaging

Elham Vafa, Nicolas Roberts, Galiya Sharafutdinova, John Holdsworth

Proceedings Volume 10013, 1001337 (2016) https://doi.org/10.1117/12.2242971

KEYWORDS: Scanners, Light scattering, Scattering, Tissue optics, Sensors, Breast, Mammography, Breast cancer, Tomography, Detector arrays

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Proceedings Article | 16 July 2015 Paper

A new volume scanner

Galiya Sharafutdinova, Levi Tegg, Ivan Lazarte, Elham Vafa, Stefan Andersson-Engels, John Holdsworth

Proceedings Volume 9538, 95381B (2015) https://doi.org/10.1117/12.2183734

KEYWORDS: Scattering, Scanners, Light scattering, Sensors, Tissues, Tissue optics, Reconstruction algorithms, Absorption, Light sources, Photons

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Proceedings Article | 19 March 2015 Paper

Optimization of near-field scanning optical lithography

Ben Routley, John Holdsworth, Andrew Fleming

Proceedings Volume 9423, 94230F (2015) https://doi.org/10.1117/12.2086073

KEYWORDS: Photoresist materials, Coating, Absorption, 3D modeling, Optical lithography, Near field scanning optical microscopy, Computer simulations, Near field optics, Lithography, Aluminum

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Proceedings Article | 31 January 2012 Paper

Michelson Interferometer characterisation of noise reduction in DFB fibre lasers

Albert Canagasabey, David Jones, David Mann, John Canning, Simon Fleming, John Holdsworth

Proceedings Volume 8351, 83511J (2012) https://doi.org/10.1117/12.915942

KEYWORDS: Fiber lasers, Packaging, Polarization, Michelson interferometers, Acoustics, Bragg cells, Denoising, Environmental sensing, Photonics, Sensors

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Proceedings Article | 3 November 2011 Paper

Supercontinuum generation in higher order modes of photonic crystal fibre

Samuel Legge, John Holdsworth, Benjamin Zwan

Proceedings Volume 8011, 801146 (2011) https://doi.org/10.1117/12.918305

KEYWORDS: Dispersion, Supercontinuum generation, Electromagnetism, Solitons, Photonic crystal fibers, Radio propagation, Mirrors, Femtosecond phenomena, Mode locking, Wave propagation

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Proceedings Article | 25 October 2011 Paper

Off-axis parabolic optical relays: almost perfect imaging

John Holdsworth, Galiya Sharafutdinova, Michael Sanderson, Dirk van Helden

Proceedings Volume 8011, 80112C (2011) https://doi.org/10.1117/12.903430

KEYWORDS: Relays, Mirrors, Adaptive optics, Reflectors, Imaging systems, Monochromatic aberrations, Point spread functions, Microscopy, Spherical lenses, Optical components

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Proceedings Article | 17 May 2011 Paper

Delayed self-heterodyne interferometry using Faraday mirrors in a Michelson configuration

Mattias Åslund, Albert Canagasabey, Andrew Michie, John Canning, John Holdsworth, Simon Fleming

Proceedings Volume 7753, 77531T (2011) https://doi.org/10.1117/12.885875

KEYWORDS: Mirrors, Interferometry, Fiber lasers, Polarization, Michelson interferometers, Bragg cells, Interferometers, Semiconductor lasers, Laser interferometry, Fiber couplers

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Proceedings Article | 20 May 2009 Paper

Bragg grating writing in photonic crystal fibres

Kevin Cook, John Canning, Alexandre A. Pohl, John Holdsworth, Michael Stevenson, Somnath Bandyopadhyay, Nathaniel Groothoff

Proceedings Volume 7357, 73570H (2009) https://doi.org/10.1117/12.820588

KEYWORDS: Cladding, Photonic crystal fibers, Absorption, Fiber Bragg gratings, Germanium, Scattering, Luminescence, Ferroelectric materials, Liquids, Hydrogen

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Proceedings Article | 16 May 2008 Paper

10 kHz linewidth distributed feedback photonic crystal fibre (DFB-PCF) laser

Jason De Iuliis, Nathaniel Groothoff, John Holdsworth, John Canning, Cicero Martelli, Andrew Michie, Stuart Jackson

Proceedings Volume 7004, 70042I (2008) https://doi.org/10.1117/12.785958

KEYWORDS: Photonic crystal fibers, Polarization, Optical amplifiers, Laser crystals, Fiber lasers, Signal to noise ratio, Birefringence, Erbium, Erbium lasers, Fiber amplifiers

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Proceedings Article | 16 May 2008 Paper

Rotational dependence of laser light accessing photonic crystal fibre cores from the side

John Holdsworth, John Canning, Chris Dewhurst

Proceedings Volume 7004, 70041L (2008) https://doi.org/10.1117/12.787047

KEYWORDS: Photonic crystal fibers, Structured optical fibers, Light scattering, Scattering, Luminescence, Collimation, Single photon, Semiconductor lasers, Diodes, Fiber Bragg gratings

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Proceedings Article | 13 February 2001 Paper

Characterization of urban atmosphere of Manila with lidar, filter sampling, and radiosonde

Susana Dorado, John Holdsworth, Nofel Lagrosas, Jose Villarin, Gemma Narisma, Jun Ellis, Rosa Perez

Proceedings Volume 4153, (2001) https://doi.org/10.1117/12.417097

KEYWORDS: LIDAR, Phase modulation, Clouds, Aerosols, Polarization, Observatories, Telescopes, Receivers, Pollution, Mass attenuation coefficient

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Showing 5 of 13 publications

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