Prof. John M. Girkin Profile

Prof. John M. Girkin

Professor at Durham Univ

SPIE Involvement:

Conference Program Committee | Author

Publications (58)

Proceedings Article | 12 March 2024 Presentation

Structured illumination for super resolution terahertz imaging

James Fleming, Lucy Downes, John Girkin, Kevin Weatherill

Proceedings Volume PC12885, PC1288505 (2024) https://doi.org/10.1117/12.3000156

KEYWORDS: Terahertz radiation, Millimeter wave imaging, Super resolution, Light sources and illumination, Imaging systems, Diffraction limit, Visualization, Spatial resolution, Spatial light modulators, Signal attenuation

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SPIE Journal Paper | 14 December 2023 Open Access

Monte Carlo simulations and phantom modeling for spatial frequency domain imaging of surgical wound monitoring

Lai Zhang, Alistair Bounds, John Girkin

JBO, Vol. 28, Issue 12, 126003, (December 2023) https://doi.org/10.1117/12.10.1117/1.JBO.28.12.126003

KEYWORDS: Scattering, Monte Carlo methods, Tissues, Skin, Wound healing, Spatial frequencies, Modeling, Absorption, Photon transport, Optical properties

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Proceedings Article | 3 March 2022 Presentation + Paper

Monitoring of surgical wound healing using spatial frequency domain imaging

Lai Zhang, Alistair Bounds, James Fleming, John Girkin

Proceedings Volume 11974, 1197407 (2022) https://doi.org/10.1117/12.2608558

KEYWORDS: Scattering, Monte Carlo methods, Skin, Spatial frequencies, Wound healing, Optical properties

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Proceedings Article | 4 March 2019 Presentation

Spotlight: supporting healthcare photonics SMEs through industry-academic partnerships (Conference Presentation)

Alistair Bounds, John Girkin, Jayakrishnan Chandrappan, Thomas Beale, Tom Harvey

Proceedings Volume 10870, 108700J (2019) https://doi.org/10.1117/12.2508398

KEYWORDS: Photonics, Medicine, Samarium, Biomedical optics, Manufacturing, Research facilities, Prototyping, Manufacturing equipment, Modeling

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Proceedings Article | 4 March 2019 Paper

High speed spectral fluorescence lifetime imaging for life science applications

Elvira Williams, Gareth O. Williams, Ahmet Erdogan, Neil Finlayson, Robert Henderson, John Girkin

Proceedings Volume 10889, 108890P (2019) https://doi.org/10.1117/12.2509466

KEYWORDS: Luminescence, Sensors, Fluorescence lifetime imaging, Imaging systems, CMOS sensors, Video

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Proceedings Article | 4 March 2019 Presentation

Optical instrumentation for imaging inside tubular organs (Conference Presentation)

Penelope Lawton, Chris Saunter, John Girkin, John McCarron, Calum Wilson

Proceedings Volume 10881, 1088102 (2019) https://doi.org/10.1117/12.2506993

KEYWORDS: Optical instrument design, Optical imaging, GRIN lenses, Imaging systems, Arteries, Calcium, Ions, Medical research, Heart, Microscopes

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Proceedings Article | 27 February 2019 Paper

Towards a portable laser speckle based device to evaluate the level of atrophy in tissue

Amrit Lotay, John Girkin

Proceedings Volume 10870, 108700H (2019) https://doi.org/10.1117/12.2507845

KEYWORDS: Skin, Speckle, Tissue optics, Semiconductor lasers, Mirrors, Prototyping, Light emitting diodes

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Proceedings Article | 15 March 2018 Presentation

Active beam shaping to optimize in vivo opto-genetic cell ablation (Conference Presentation)

John Girkin, Charlotte Buckley, Mariana Carvalho, Laura Young, Sebastien Rider, John Mullins

Proceedings Volume 10502, 1050208 (2018) https://doi.org/10.1117/12.2288682

KEYWORDS: Adaptive optics, Microscopy, Optical microscopy, Beam shaping, In vivo imaging, Microscopes, Light scattering, Bessel beams, Proteins, Kidney

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Proceedings Article | 15 March 2018 Presentation

Widefield micro-optical probe and computer simulation enables new insights into vascular pressure sensing and signaling (Conference Presentation)

John Girkin, Christopher Saunter, Calum Wilson, John McCarron

Proceedings Volume 10504, 1050404 (2018) https://doi.org/10.1117/12.2288680

KEYWORDS: Signal processing, Computer simulations, Biomedical optics, Confocal microscopy, Image processing, Microscopes, Vascular imaging, Blood vessels, Blood circulation, Blood

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Proceedings Article | 8 March 2018 Paper

A new concept of imaging system: telescope windows

Cyril Bourgenot, Euan Cowie, Laura Young, Gordon Love, John Girkin, Johannes Courtial

Proceedings Volume 10474, 104741Z (2018) https://doi.org/10.1117/12.2289657

KEYWORDS: Telescopes, Prototyping, Diffraction, Imaging systems, Lenses, Wavefronts, Polymethylmethacrylate, Manufacturing, Geometrical optics, Microlens array

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Proceedings Article | 24 August 2017 Presentation + Paper

Design, manufacture, and evaluation of prototype telescope windows for use in low-vision aids

Cyril Bourgenot, Johannes Courtial, Euan Cowie, John Girkin, Gordon Love, David Robertson, Laura Young

Proceedings Volume 10376, 103760I (2017) https://doi.org/10.1117/12.2272992

KEYWORDS: Telescopes, Optics manufacturing, Optical instrument design, Prototyping, Design for manufacturability, Optical components, Eyewear, Micro optics, Geometrical optics, Imaging systems

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Proceedings Article | 28 April 2017 Presentation

Using spectroscopy and microscopy to aid in the development and production of fast-moving consumer goods (Conference Presentation)

Penelope Lawton, John Girkin

Proceedings Volume 10110, 101100N (2017) https://doi.org/10.1117/12.2252423

KEYWORDS: Spectroscopy, Raman spectroscopy, Spectroscopes, Photonic devices, Confocal microscopy, Luminescence, Microscopy, Fiber optics, Industrial chemicals, Image resolution

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SPIE Journal Paper | 27 April 2016 Open Access

Two-color widefield fluorescence microendoscopy enables multiplexed molecular imaging in the alveolar space of human lung tissue

Nikola Krstajić, Ahsan Akram, Tushar Choudhary, Neil McDonald, Michael Tanner, Ettore Pedretti, Paul Dalgarno, Emma Scholefield, John Girkin, Anne Moore, Mark Bradley, Kevin Dhaliwal

JBO, Vol. 21, Issue 04, 046009, (April 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.4.046009

KEYWORDS: Luminescence, Lung, Tissues, Cameras, Bacteria, Video, Imaging systems, Light emitting diodes, Optical filters, Multiplexing

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Proceedings Article | 7 March 2016 Paper

Random laser illumination: an ideal source for biomedical polarization imaging?

Mariana Carvalho, Amrit Lotay, Fiona Kenny, John Girkin, Anderson S. Gomes

Proceedings Volume 9701, 97010Q (2016) https://doi.org/10.1117/12.2209623

KEYWORDS: Imaging systems, Polarization imaging, Random lasers, Biomedical optics, Polarization, Light sources, Spatial coherence, Light emitting diodes, Tissue optics, Coherence imaging

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Proceedings Article | 29 February 2016 Presentation + Paper

Measurement of diffusion of fluorescent compounds and autofluorescence in skin in vivo using a confocal instrument

K. Buttenschoen, E. Sutton, D. Daly, J. Girkin

Proceedings Volume 9689, 968912 (2016) https://doi.org/10.1117/12.2210858

KEYWORDS: Skin, Diffusion, Confocal microscopy, In vivo imaging, Confocal fluorescent microscopy, Absorption, Real time imaging, Laser sintering, Raman spectroscopy, In vitro testing, Multiphoton microscopy, Distance measurement

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Proceedings Article | 31 March 2015 Paper

Realtime wavefront sensing in a SPIM microscope, and active aberration tracking

Jonathan Taylor, Christopher Saunter, Cyril Bourgenot, John Girkin, Gordon Love

Proceedings Volume 9335, 93350A (2015) https://doi.org/10.1117/12.2080061

KEYWORDS: Wavefront sensors, Adaptive optics, Wavefronts, Stars, Heart, Imaging systems, Microscopes, Cameras, Tissues, Monochromatic aberrations

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Proceedings Article | 10 March 2015 Paper

Adaptive optimisation of illumination beam profiles in fluorescence microscopy

T. Mitchell, C. Saunter, W. O'Nions, J. Girkin, Gordon Love

Proceedings Volume 9335, 93350B (2015) https://doi.org/10.1117/12.2080310

KEYWORDS: Microscopes, Prototyping, Microscopy, Beam shaping, Objectives, Spatial light modulators, Sensors, Luminescence, 3D metrology, Adaptive optics

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Proceedings Article | 10 March 2015 Paper

Using SPIM to track the development of the focal power of the zebrafish lens

Laura Young, Miguel Jarrin, Christopher Saunter, Roy Quinlan, John Girkin

Proceedings Volume 9334, 933408 (2015) https://doi.org/10.1117/12.2079887

KEYWORDS: Refractive index, Eye, Retina, Water, Objectives, Proteins, Ray tracing, In vivo imaging, Collimation, Optical tracking

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Proceedings Article | 26 February 2015 Paper

Quantification of skin quality through speckle analysis

Amrit Lotay, Kim-Kristin Buttenschoen, J. Girkin

Proceedings Volume 9303, 93030Q (2015) https://doi.org/10.1117/12.2077616

KEYWORDS: Skin, Speckle, Speckle pattern, Surface roughness, Natural surfaces, Image processing, Tissue optics, Speckle analysis, Diagnostics, In vivo imaging

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Proceedings Article | 8 May 2014 Paper

Measurement and quantification of fluorescent changes in ocular tissue using a novel confocal instrument

Kim Buttenschoen, John Girkin, Daniel Daly

Proceedings Volume 9129, 91291R (2014) https://doi.org/10.1117/12.2051800

KEYWORDS: Luminescence, Eye, Diffusion, Tissues, Cornea, Confocal microscopy, In vivo imaging, Crystals, In vitro testing, Ultraviolet radiation

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Proceedings Article | 6 March 2014 Paper

Combining optical trapping in a microfluidic channel with simultaneous micro-Raman spectroscopy and motion detection

Penelope Lawton, Christopher Saunter, John Girkin

Proceedings Volume 8976, 89760V (2014) https://doi.org/10.1117/12.2037022

KEYWORDS: Raman spectroscopy, Crystals, Carbonates, Calcium, Optical tweezers, Polymethylmethacrylate, Particles, Spectroscopy, Micro raman spectroscopy, Motion detection

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Proceedings Article | 26 March 2013 Paper

High-resolution time-resolved 3D optical microscopy inside the beating zebrafish heart using prospective optical gating

J. Taylor, C. Saunter, G. Love, J. Girkin

Proceedings Volume 8593, 859302 (2013) https://doi.org/10.1117/12.2005886

KEYWORDS: Heart, Laser ablation, Cameras, 3D acquisition, Imaging systems, Luminescence, 3D image processing, Computing systems, Optical microscopy, Reticles

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Proceedings Article | 22 February 2013 Paper

Light sheet adaptive optics microscope for 3D live imaging

C. Bourgenot, J. Taylor, C. Saunter, J. Girkin, G. Love

Proceedings Volume 8589, 85890W (2013) https://doi.org/10.1117/12.2002057

KEYWORDS: Adaptive optics, Heart, Microscopes, Monochromatic aberrations, Sensors, Wavefronts, Microscopy, Refractive index, 3D image processing, Statistical modeling

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Proceedings Article | 22 February 2012 Paper

Tracking ophthalmic drugs in the eye using confocal fluorescence microscopy

K. Buttenschön, J. Girkin, D. Daly

Proceedings Volume 8214, 821403 (2012) https://doi.org/10.1117/12.906135

KEYWORDS: Eye, Confocal microscopy, Luminescence, Diffusion, Calibration, Cornea, Beam splitters, Microscopy, Signal attenuation, Temporal resolution

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Proceedings Article | 16 February 2012 Paper

Closed loop adaptive optics with a laser guide star for biological light microscopy

Christopher Saunter, Cyril Bourgenot, John Girkin, Gordon Love

Proceedings Volume 8253, 82530J (2012) https://doi.org/10.1117/12.909927

KEYWORDS: Adaptive optics, Wavefronts, Microscopes, Light scattering, Microscopy, Laser guide stars, Laser scattering, Objectives, Laser beam diagnostics, Confocal microscopy

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Proceedings Article | 3 February 2012 Paper

Prospective gating for 3D imaging of the beating zebrafish heart in embryonic development studies

J. Taylor, C. Saunter, G. Love, J. Girkin

Proceedings Volume 8227, 822716 (2012) https://doi.org/10.1117/12.908164

KEYWORDS: Heart, Luminescence, 3D image processing, Cameras, 3D acquisition, Stereoscopy, Objectives, Microscopes, Image acquisition, Video

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SPIE Journal Paper | 1 November 2011 Open Access

Real-time optical gating for three-dimensional beating heart imaging

Jonathan Taylor, Christopher Saunter, Gordon Love, John Girkin, Deborah Henderson, Bill Chaudhry

JBO, Vol. 16, Issue 11, 116021, (November 2011) https://doi.org/10.1117/12.10.1117/1.3652892

KEYWORDS: Heart, Luminescence, Cameras, 3D image processing, Imaging systems, Biomedical optics, Image processing, Video, Image analysis, 3D acquisition

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Proceedings Article | 9 September 2011 Paper

The viscoelastic properties of the vitreous humour measured using an optically trapped local probe

Fiona Watts, Lay Ean Tan, Manlio Tassieri, Niall McAlinden, Clive Wilson, John Girkin, Amanda Wright

Proceedings Volume 8097, 80970H (2011) https://doi.org/10.1117/12.895192

KEYWORDS: Vitreous, Eye, Optical tweezers, Microscopes, Particles, Retina, Objectives, Optical testing, Optical filters, CCD cameras

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Proceedings Article | 9 September 2011 Paper

Investigating the interaction forces between T cells and antigen-presenting cells using an optical trapping system

Amanda Wright, Robert Benson, Richard Bowman, Graham Gibson, Miles Padgett, John Girkin, James Brewer, Paul Garside

Proceedings Volume 8097, 80970I (2011) https://doi.org/10.1117/12.895113

KEYWORDS: Optical tweezers, Particles, Spatial light modulators, Microscopes, Cameras, Detection and tracking algorithms, Dendrites, Gaussian beams, Pathogens, Optical tracking

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Proceedings Article | 23 February 2011 Paper

Adaptive optics for wide-field microscopy

C. Bourgenot, C. Saunter, J. Girkin, G. Love

Proceedings Volume 7904, 790414 (2011) https://doi.org/10.1117/12.873857

KEYWORDS: Adaptive optics, Mirrors, Microscopy, Sensors, Wavefronts, Laser guide stars, Optimization (mathematics), Wavefront sensors, Optical microscopy, Cameras

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Proceedings Article | 15 February 2011 Paper

Process analysis in micro-reactors: challenges and solutions with Raman spectrometry

Sergey Mozharov, Alison Nordon, John Girkin, David Littlejohn

Proceedings Volume 7929, 79290U (2011) https://doi.org/10.1117/12.874227

KEYWORDS: Raman spectroscopy, Microfluidics, Chemical analysis, Spectroscopy, Process control, Sensors, Glasses, Integrated optics, Luminescence, Mass spectrometry

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Proceedings Article | 14 February 2011 Paper

Implementation of adaptive optics in beam scanning and wide-field optical microscopy

J. Girkin

Proceedings Volume 7931, 79310E (2011) https://doi.org/10.1117/12.872719

KEYWORDS: Mirrors, Adaptive optics, Optical microscopy, Microscopy, Microscopes, Astronomy, Image quality, Telescopes, Optimization (mathematics), Optical components

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Proceedings Article | 11 February 2011 Paper

Heart synchronization for SPIM microscopy of living zebra fish

J. Taylor, C. Saunter, B. Chaudhry, D. Henderson, G. Love, J. Girkin

Proceedings Volume 7904, 79040B (2011) https://doi.org/10.1117/12.874773

KEYWORDS: Heart, Imaging systems, Microscopy, Video, Cameras, Genetics, Microscopes, Adaptive optics, Optical microscopy, Tissues

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Proceedings Article | 3 March 2010 Paper

Measurement of the tear film and anterior chamber by confocal microscopy

Kim Buttenschön, John Girkin, Clive Wilson, Daniel Daly

Proceedings Volume 7550, 755028 (2010) https://doi.org/10.1117/12.842187

KEYWORDS: Eye, Cornea, Confocal microscopy, Beam splitters, Reflection, Sensors, Wave plates, Polarization, Roads, Inflammation

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Proceedings Article | 5 June 2009 Open Access

Introducing biophotonics to undergraduates across the disciplines

John Girkin, Brian Culshaw, Iain Mauchline, Doug Walsh

Proceedings Volume 9666, 96660P (2009) https://doi.org/10.1117/12.2207970

KEYWORDS: Image enhancement, Biomedical optics, Spatial filters, Image processing, Microscopes, Image filtering, Biology, Imaging systems, Microscopy, Optical microscopy

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Proceedings Article | 21 February 2009 Paper

A confocal micro-imaging system incorporating a thermally actuated two axis MEMS scanner

Simon Poland, Lijie Li, Deepak Uttamchandani, John Girkin

Proceedings Volume 7172, 717203 (2009) https://doi.org/10.1117/12.807745

KEYWORDS: Microelectromechanical systems, Confocal microscopy, Scanners, Imaging systems, Mirrors, In vivo imaging, Tissues, Single mode fibers, Image resolution, Aspheric lenses

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Proceedings Article | 15 February 2008 Paper

Adaptive optics applied to coherent anti-Stokes Raman scattering microscopy

John Girkin, Simon Poland, Amanda Wright, Christian Freudiger, Conor Evans, X. Sunney Xie

Proceedings Volume 6860, 68600T (2008) https://doi.org/10.1117/12.764445

KEYWORDS: Adaptive optics, Microscopy, Aberration correction, Microscopes, Tissue optics, Actuators, Mirrors, Genetic algorithms, CARS tomography, Image enhancement

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SPIE Journal Paper | 1 November 2007 Open Access

Characterization of natural carious lesions by fluorescence spectroscopy at 405-nm excitation wavelength

Denise Zezell, Adriana Ribeiro, Luciano Bachmann, Anderson Gomes, Christel Rousseau, John Girkin

JBO, Vol. 12, Issue 06, 064013, (November 2007) https://doi.org/10.1117/12.10.1117/1.2821192

KEYWORDS: Luminescence, Fluorescence spectroscopy, Dental caries, Tissues, Statistical analysis, Semiconductor lasers, Teeth, Natural surfaces, Tissue optics, Spectroscopy

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Proceedings Article | 5 September 2007 Paper

Parametric excitation of optically trapped aerosols

R. Di Leonardo, G. Ruocco, J. Leach, M. Padgett, A. Wright, J. Girkin, D. Burnham, D. McGloin

Proceedings Volume 6644, 66441J (2007) https://doi.org/10.1117/12.736448

KEYWORDS: Modulation, Oscillators, Particles, Aerosols, Optical tweezers, Atmospheric particles, Physics, Liquids, Stochastic processes, Solids

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Proceedings Article | 31 August 2007 Paper

The lateral displacement of a moving image on transmission through a stationary glass window

Miles Padgett, Jonathan Leach, Sonja Franke-Arnold, Jörg Götte, L. Allen, Amanda Wright, John Girkin, Stephen Barnett

Proceedings Volume 6664, 66640D (2007) https://doi.org/10.1117/12.735556

KEYWORDS: Glasses, Polarization, Image transmission, Refraction, Interfaces, Dielectrics, Virtual colonoscopy, Modulators, Physics, Statistical analysis

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Proceedings Article | 14 February 2007 Paper

Microscopy using micropixellated light emitting diodes

V. Poher, G. Kennedy, D. Elson, P. French, M. Neil, H. Z. Zhang, E. Gu, Z. Gong, C. Griffin, J. Girkin, M. Dawson

Proceedings Volume 6443, 644313 (2007) https://doi.org/10.1117/12.700811

KEYWORDS: Light emitting diodes, Microscopy, Confocal microscopy, Microscopes, Light sources, Line scan image sensors, Luminescence, Solid state electronics, CCD cameras, Cameras

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Proceedings Article | 10 February 2007 Paper

Adaptive optics in confocal and two-photon microscopy of rat brain: a single correction per optical section

John Girkin, J. Vijverberg, M. Orazio, S. Poland, A. Wright

Proceedings Volume 6442, 64420T (2007) https://doi.org/10.1117/12.696761

KEYWORDS: Point spread functions, Brain, Adaptive optics, Mirrors, Tissues, Aberration correction, Confocal microscopy, Optical calibration, Optical components, Neuroimaging

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Proceedings Article | 10 February 2007 Paper

Real time on-line intracavity detection of chemicals in solution

Untzizu Elejalde, John Girkin

Proceedings Volume 6444, 644407 (2007) https://doi.org/10.1117/12.696558

KEYWORDS: Semiconductor lasers, Mirrors, Absorption, Sensors, Spectrometers, Reflectivity, Industrial chemicals, Absorbance, Microfluidics, Liquids

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Proceedings Article | 27 October 2006 Paper

Confocal and multiphoton microscopy for imaging at depth in living tissue

J. Girkin, A. Wright, S. Poland, B. Patterson, G. Gibson, M. Padgett

Proceedings Volume 6047, 60472P (2006) https://doi.org/10.1117/12.710985

KEYWORDS: Point spread functions, Mirrors, Confocal microscopy, Deformable mirrors, Objectives, Image resolution, Microscopes, Spatial light modulators, Remote sensing, Autoregressive models

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Proceedings Article | 27 October 2006 Paper

Beyond monochromatic light: three-dimensional confocal laser scanning microscopy using a supercontinuum source

G. McConnell, J. Girkin, S. Poland

Proceedings Volume 6047, 60472Q (2006) https://doi.org/10.1117/12.710991

KEYWORDS: Digital micromirror devices, Mirrors, Supercontinuum sources, Luminescence, Confocal laser scanning microscopy, Optical fibers, Confocal microscopy, Switching, Laser sources, Sapphire lasers

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Proceedings Article | 21 July 2006 Paper

Multiphoton microscopy: in depth in vivo sub cellular resolution imaging

John Girkin

Proceedings Volume 6163, 61630T (2006) https://doi.org/10.1117/12.697070

KEYWORDS: Point spread functions, Image resolution, Multiphoton microscopy, Mirrors, Microscopes, In vivo imaging, Imaging systems, Objectives, Confocal microscopy, Microscopy

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Proceedings Article | 8 June 2006 Paper

Use of optimization algorithmic techniques with active optics for aberration correction in optical sectioning microscopy

S. Poland, D. Burns, W. Lubeigt, B. Patterson, G. Valentine, A. Wright, J. Girkin

Proceedings Volume 6018, 60181H (2006) https://doi.org/10.1117/12.669388

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Proceedings Article | 14 April 2006 Paper

Active locking of adaptive optics for improved microscopy

Amanda Wright, Graham Gibson, Simon Poland, Brett Patterson, Miles Padgett, John Girkin

Proceedings Volume 6191, 61910F (2006) https://doi.org/10.1117/12.662555

KEYWORDS: Spatial light modulators, Microscopes, Mirrors, Adaptive optics, Objectives, Deformable mirrors, Feedback loops, Point spread functions, Aberration correction, Actuators

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SPIE Journal Paper | 1 November 2005 Open Access

Evaluation of enamel dental restoration interface by optical coherence tomography

L. de Melo, Renato de Araujo, Anderson Freitas, Denise Zezell, Nilson Vieira, John Girkin, Andrew Hall, Mariana Carvalho, Anderson Gomes

JBO, Vol. 10, Issue 06, 064027, (November 2005) https://doi.org/10.1117/12.10.1117/1.2141617

KEYWORDS: Optical coherence tomography, Teeth, X-ray imaging, Interfaces, X-rays, X-ray microscopy, Optical microscopy, Microscopes, Image resolution, Tissues

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Proceedings Article | 21 June 2004 Paper

Use of adaptive optics for improved multiphoton imaging

John Girkin, Paul Marsh

Proceedings Volume 5323, (2004) https://doi.org/10.1117/12.525659

KEYWORDS: Mirrors, Adaptive optics, Imaging systems, Objectives, Water, Image quality, Point spread functions, Microscopes, Control systems, Optical components

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Proceedings Article | 28 May 2004 Paper

Blue-laser-diode-excited fluorescence spectroscopy of natural carious lesions

John Girkin, Christel Rousseau, Andrew Hall, Ronnie Strang, C. John Whitters, Steve Creanor, Adriana Cribeiro

Proceedings Volume 5313, (2004) https://doi.org/10.1117/12.525663

KEYWORDS: Teeth, Luminescence, Dental caries, Spectroscopy, Fluorescence spectroscopy, Semiconductor lasers, Light scattering, Tissue optics, Scattering, Optical inspection

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Proceedings Article | 14 November 2003 Paper

Micromachining of gallium nitride, sapphire, and silicon carbide with ultrashort pulses

Graeme Rice, D. Jones, K. Kim, John Girkin, D. Jarozynski, Martin Dawson

Proceedings Volume 5147, (2003) https://doi.org/10.1117/12.543662

KEYWORDS: Gallium nitride, Femtosecond phenomena, Sapphire, Laser ablation, Silicon carbide, Pulsed laser operation, Electrons, Micromachining, Laser damage threshold, Gallium

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Proceedings Article | 6 October 2003 Paper

Automatic transverse mode optimization of an all-solid-state laser using an intracavity adaptive-optic mirror

Walter Lubeigt, Gareth Valentine, John Girkin, Erwin Bente, David Burns

Proceedings Volume 5137, (2003) https://doi.org/10.1117/12.517953

KEYWORDS: Mirrors, Optimization (mathematics), Deformable mirrors, Transducers, Actuators, Adaptive optics, Neodymium lasers, High power lasers, Laser resonators, Solid state lasers

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Proceedings Article | 3 June 2002 Paper

Application of a novel confocal imaging technique for early the detection of dental decay

Christel Rousseau, John Girkin, Shilpa Vaidya, Andrew Hall, C. Whitters, Steve Creanor

Proceedings Volume 4610, (2002) https://doi.org/10.1117/12.469308

KEYWORDS: Confocal microscopy, Fiber optics, Teeth, Microscopes, Dental caries, Signal detection, Minerals, Luminescence, Optical fibers, Sensors

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Proceedings Article | 10 May 2001 Paper

Confocal microscopy using a InGaN laser diode at 406 nm

John Girkin, Allister Ferguson, David Wokosin, A. Gurney

Proceedings Volume 4260, (2001) https://doi.org/10.1117/12.426782

KEYWORDS: Semiconductor lasers, Confocal microscopy, Objectives, Argon ion lasers, Head, Ultraviolet radiation, Imaging systems, Prisms, Microscopes, Image resolution

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Proceedings Article | 24 April 2001 Paper

Full systems considerations for multiphoton microscopy

David Wokosin, John Girkin

Proceedings Volume 4262, (2001) https://doi.org/10.1117/12.424558

KEYWORDS: Signal detection, Lenses, Imaging systems, Objectives, Confocal microscopy, Multiphoton microscopy, Luminescence, Near infrared, Microscopy, Sensors

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Proceedings Article | 24 April 2001 Paper

Novel compact sources for multiphoton microscopy

John Girkin, David Wokosin

Proceedings Volume 4262, (2001) https://doi.org/10.1117/12.424553

KEYWORDS: Multiphoton microscopy, Laser sources, Semiconductor lasers, Imaging systems, Absorption, Pulsed laser operation, Mirrors, Femtosecond phenomena, Sapphire lasers, Computing systems

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