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Michael J. Withford
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Journal Articles

Physical mechanisms of femtosecond laser induced refractive index change in direct-written mid-infrared fiber Bragg gratings

Open Access
T. Toney Fernandez, Luyi Xu, Simon Gross, Gayathri Bharathan, Martin Ams, Karen Privat, Michael J. Withford, Alex Fuerbach
Journal: APL Photonics
APL Photonics 9, 110802 (2024)
https://doi.org/10.1063/5.0224504
Published: November 2024
View articletitled, Physical mechanisms of femtosecond laser induced refractive index change in direct-written mid-infrared fiber Bragg gratings
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Journal Articles

High performing designer glass platform to host versatile photonic devices

Open Access
T. Toney Fernandez, Simon Gross, Alexander Arriola, Karen Privat, Michael J. Withford
Journal: APL Materials
APL Mater. 9, 121109 (2021)
https://doi.org/10.1063/5.0063788
Published: December 2021
View articletitled, High performing designer glass platform to host versatile photonic devices
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Journal Articles

Generation of heralded single photons beyond 1100 nm by spontaneous four-wave mixing in a side-stressed femtosecond laser-written waveguide

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Zhizhong Yan, Yuwen Duan, L. G. Helt, Martin Ams, Michael J. Withford, M. J. Steel
Journal: Applied Physics Letters
Appl. Phys. Lett. 107, 231106 (2015)
https://doi.org/10.1063/1.4937374
Published: December 2015
View articletitled, Generation of heralded single photons beyond 1100 nm by spontaneous four-wave mixing in a side-stressed femtosecond laser-written waveguide
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Journal Articles

Creating large second-order optical nonlinearity in optical waveguides written by femtosecond laser pulses in boro-aluminosilicate glass

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Hong-Lin An, Alexander Arriola, Simon Gross, Alexander Fuerbach, Michael J. Withford, Simon Fleming
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 021113 (2014)
https://doi.org/10.1063/1.4861903
Published: January 2014
View articletitled, Creating large second-order optical nonlinearity in optical waveguides written by femtosecond laser pulses in boro-aluminosilicate glass
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Journal Articles

Directly Written DFB Waveguide Lasers Using Femtosecond Laser Pulses

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Martin Ams, Peter Dekker, Graham D. Marshall, Douglas J. Little, Michael J. Withford
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1278, 438–445 (2010)
https://doi.org/10.1063/1.3507132
Published: October 2010
View articletitled, Directly Written DFB Waveguide Lasers Using Femtosecond Laser Pulses
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Journal Articles

Mechanism of femtosecond-laser induced refractive index change in phosphate glass under a low repetition-rate regime

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Douglas J. Little, Martin Ams, Peter Dekker, Graham D. Marshall, Michael J. Withford
Journal: Journal of Applied Physics
J. Appl. Phys. 108, 033110 (2010)
https://doi.org/10.1063/1.3468490
Published: August 2010
View articletitled, Mechanism of femtosecond-laser induced refractive index change in phosphate glass under a low repetition-rate regime
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Journal Articles

Investigation of femtosecond laser induced thermal ablation of polyethylene

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Andrew J. Lee, Judith M. Dawes, Michael J. Withford
Journal: Journal of Laser Applications
J. Laser Appl. 20, 154–159 (2008)
https://doi.org/10.2351/1.2955561
Published: July 2008
View articletitled, Investigation of femtosecond laser induced thermal ablation of polyethylene
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Journal Articles

Simple method enabling pulse on command from high power, high frequency lasers

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David J. Baer, Graham D. Marshall, David W. Coutts, Richard P. Mildren, Michael J. Withford
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 77, 093103 (2006)
https://doi.org/10.1063/1.2338284
Published: September 2006
View articletitled, Simple method enabling pulse on command from high power, high frequency lasers
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Proceedings Papers

Fabrication of periodic, resonant features in optical fibres using a CO2 laser micro-tapering system

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Douglas J. Little, Graham D. Marshall, Michael J. Withford
View Paper titled, Fabrication of periodic, resonant features in optical fibres using a CO2 laser micro-tapering system
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Proceedings Papers

Tilted fibre gratings for sideways light delivery

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Judith M. Dawes, Graham D. Marshall, Michael J. Withford
View Paper titled, Tilted fibre gratings for sideways light delivery
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Proceedings Papers

Point by point femtosecond laser inscription of fibre and waveguide Bragg gratings for photonic device fabrication

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Graham D. Marshall, Martin Ams, Michael J. Withford
View Paper titled, Point by point femtosecond laser inscription of fibre and waveguide Bragg gratings for photonic device fabrication
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Proceedings Papers

Active devices fabricated in bulk glass via femtosecond laser pulses

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Martin Ams, Graham D. Marshall, James A. Piper, Michael J. Withford
View Paper titled, Active devices fabricated in bulk glass via femtosecond laser pulses
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Proceedings Papers

Fabrication of c-band resonant structures in rib waveguides

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Andrew J. Lee, Michael J. Withford, Judith M. Dawes, Graham D. Marshall
View Paper titled, Fabrication of c-band resonant structures in rib waveguides
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Journal Articles

Dynamics of domain inversion in Li Nb O 3 poled using topographic electrode geometries

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Benjamin F. Johnston, Michael J. Withford
Journal: Applied Physics Letters
Appl. Phys. Lett. 86, 262901 (2005)
https://doi.org/10.1063/1.1952574
Published: June 2005
View articletitled, Dynamics of domain inversion in Li Nb O 3 poled using topographic electrode geometries
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Proceedings Papers

Laser based fabrication of micro and nano-structures using sacrificial layers

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Andrew. J. Lee, Michael. J. Withford, Judith. M. Dawes
View Paper titled, Laser based fabrication of micro and nano-structures using sacrificial layers
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Proceedings Papers

Active waveguides written in rare-earth doped materials with femtosecond laser pulses

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Martin Ams, Michael J. Withford, Judith M. Dawes, James A. Piper
View Paper titled, Active waveguides written in rare-earth doped materials with femtosecond laser pulses
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Proceedings Papers

Characterisation of waveguides written in bulk materials with femtosecond laser pulses

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Martin Ams, Michael J. Withford, Judith M. Dawes, James A. Piper
View Paper titled, Characterisation of waveguides written in bulk materials with femtosecond laser pulses
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Proceedings Papers

Photonic crystal based circuitry fabricated using laser-assisted processes

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Andrew J. Lee, Michael J. Withford, Judith M. Dawes
View Paper titled, Photonic crystal based circuitry fabricated using laser-assisted processes
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Proceedings Papers

Fabrication of tilted fibre gratings for medical applications

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Benjamin Kwok, Michael J. Withford, Judith M. Dawes
View Paper titled, Fabrication of tilted fibre gratings for medical applications
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Proceedings Papers

Direct-write microcutting and micropatterning of polymers using high prf UV copper lasers

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Elizabeth K. Illy, Daniel J. W. Brown, Michael J. Withford, James A. Piper
View Paper titled, Direct-write microcutting and micropatterning of polymers using high prf UV copper lasers
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