Prof. James S. Wilkinson Profile

Prof. James S. Wilkinson

at Univ of Southampton

SPIE Involvement:

Author

Publications (39)

Proceedings Article | 12 March 2024 Presentation + Paper

Ultralow loss chalcogenide waveguide platform for mid-IR on-chip spectrometer

Vasileios Mourgelas, Sirawit Boonsit, James Wilkinson, Ganapathy Senthil Murugan

Proceedings Volume 12889, 128890H (2024) https://doi.org/10.1117/12.3001161

KEYWORDS: Waveguides, Silicon, Etching, Chalcogenides, Mid infrared, Spectroscopy, Thermal optics, Fabrication, Wet etching, Biomedical applications

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Proceedings Article | 17 March 2023 Poster + Paper

Amorphous germanium waveguides for medical diagnostics using mid-infrared spectroscopy

Eleanor Osborne, Aneesh Vincent Veluthandath, Waseem Ahmed, Sirawit Boonsit, Vasileios Mourgelas, James Wilkinson, Ganapathy Senthil Murugan

Proceedings Volume 12424, 1242411 (2023) https://doi.org/10.1117/12.2648868

KEYWORDS: Waveguides, Germanium, Plasma enhanced chemical vapor deposition, Silicon, Mid-IR, Spectroscopy, Sputter deposition, Refractive index, Silicon films, Fabrication

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Proceedings Article | 17 March 2023 Presentation

Membrane external-cavity surface-emitting laser emitting in bi-frequency operation through micromachining of cavity mirror

Jake Daykin, Jonathan R. Woods, Daniel Heath, Roman Bek, James Wilkinson, Ben Mills, Michael Jetter, Peter Michler, Vasilis Apostolopoulos

Proceedings Volume 12404, 1240403 (2023) https://doi.org/10.1117/12.2647363

KEYWORDS: Mirrors, Micromachining, Terahertz spectroscopy, Laser ablation, Continuous wave operation, Spectroscopes, Reticles, Reflectivity, Optical sensing, Optical pumping

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Proceedings Article | 17 March 2023 Presentation

Semiconductor quantum well membranes for tunable coherent waveguide laser arrays

Jake Daykin, Nicholas Klokkou, Stephen Richardson, Jonathan R. Woods, Roman Bek, Jon Gorecki, James Wilkinson, Michael Jetter, Peter Michler, Vasilis Apostolopoulos

Proceedings Volume 12404, 1240404 (2023) https://doi.org/10.1117/12.2655948

KEYWORDS: Waveguide lasers, Semiconductors, Quantum wells, Tunable lasers, Laser resonators, Waveguides, Silicon carbide, Semiconductor lasers, Space operations, Silicon photonics

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Proceedings Article | 13 March 2023 Presentation + Paper

Improving tuberculosis treatment using mid-infrared spectroscopy for bedside therapeutic drug monitoring

David Rowe, Daniel Owens, Milos Nedeljkovic, Callum Stirling, Katrina Cathie, Suzanne Parker, Saul Faust, Goran Mashanovich, James Wilkinson

Proceedings Volume 12426, 124260G (2023) https://doi.org/10.1117/12.2649135

KEYWORDS: Whole blood, Waveguides, Biological samples, Spectroscopy, Relative intensity noise, FT-IR spectroscopy, Absorption, Absorbance, Waveguide sensors, Blood

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Proceedings Article | 11 January 2023 Presentation

Artificial neural networks for terahertz time-domain spectroscopy parameter extraction

Nicholas Klokkou, Jon Gorecki, James Wilkinson, Vasilis Apostolopoulos

Proceedings Volume 12333, 1233309 (2023) https://doi.org/10.1117/12.2647614

KEYWORDS: Terahertz spectroscopy, Spectroscopy, Data modeling, Artificial neural networks, Refractive index, Data acquisition, Signal to noise ratio, Nondestructive evaluation, Neural networks, Material characterization

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Proceedings Article | 11 January 2023 Presentation

III-V compound semiconductor membrane quantum well waveguide lasers emitting at 1 μm

Stephen Richardson, Jonathan Woods, Jake Daykin, Jon Gorecki, Roman Bek, Nicholas Klokkou, James Wilkinson, Michael Jetter, Vasileios Apostolopoulos

Proceedings Volume PC12334, PC123340H (2023) https://doi.org/10.1117/12.2647572

KEYWORDS: Quantum wells, Waveguide lasers, Compound semiconductors, Waveguides, Silicon carbide, Laser development, Semiconductors, Semiconductor lasers, Resonators, Prototyping

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Proceedings Article | 11 January 2023 Presentation

Tantalum pentoxide micro-resonators for Kerr micro-comb generation

Jake Daykin, Jonathan R. Woods, Stephen Richardson, Oliver Trojak, Jonathan Silver, Folly Eli Ayi-Yovo, Nicholas Klokkou, Amy S. Tong, Patrick Gill, Alberto Politi, Peter Horak, James Wilkinson, Vasilis Apostolopoulos

Proceedings Volume PC12334, PC123340J (2023) https://doi.org/10.1117/12.2647237

KEYWORDS: Microresonators, Waveguides, Tantalum, Frequency combs, Wave propagation, Resonators, Sputter deposition, Silica, Plasma enhanced chemical vapor deposition, Optical sensing

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Proceedings Article | 9 March 2022 Presentation

Semiconductor in-plane membrane quantum-well lasers

Jonathan R. Woods, Jon Gorecki, Jake Daykin, Stephen Richardson, Michael Jetter, Roman Bek, Emelia Branagan-Harris, Grace Hooper, James Wilkinson, Anne Tropper, Vasilis Apostolopoulos

Proceedings Volume PC12021, PC1202105 (2022) https://doi.org/10.1117/12.2613328

KEYWORDS: Semiconductor lasers, Quantum wells, Semiconductors, Waveguides, Silicon photonics, Silicon carbide, Semiconducting wafers, Resonators, Planar waveguides, Optical simulations

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Proceedings Article | 5 March 2021 Presentation + Paper

ATR based infrared spectroscopy for the diagnosis of neonatal respiratory distress syndrome

Waseem Ahmed, Aneesh Vincent Veluthandath, Jens Madsen, Howard Clark, Antony Postle, James Wilkinson, Ganapathy Senthil Murugan

Proceedings Volume 11651, 1165104 (2021) https://doi.org/10.1117/12.2578818

KEYWORDS: Infrared spectroscopy, Attenuated total reflectance, Spectroscopy, Quantum cascade lasers, FT-IR spectroscopy, Diagnostics, Optical spectroscopy, Laser spectroscopy, Infrared radiation

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Proceedings Article | 9 March 2020 Presentation

Tantalum pentoxide waveguides for spectral broadening of vertical external cavity surface emitting lasers (Conference Presentation)

Jonathan R. Woods, Jake Daykin, Amy Tong, Cosimo Lacava, Periklis Petropoulos, Anne Tropper, Peter Horak, James Wilkinson, Vasilis Apostolopoulos

Proceedings Volume 11263, 1126308 (2020) https://doi.org/10.1117/12.2546574

KEYWORDS: Waveguides, Tantalum, Vertical external cavity surface emitting lasers, Mode locking, Silicon, Silica, Ions, Refractive index, Custom fabrication, Dispersion

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Proceedings Article | 13 May 2019 Presentation

Mid-infrared waveguides for biosensing (Conference Presentation)

James Wilkinson

Proceedings Volume 11031, 110310B (2019) https://doi.org/10.1117/12.2524269

KEYWORDS: Biosensing, Waveguides, Mid-IR, Biological research, Safety, Information security, Medicine, Point-of-care devices, Diagnostics, Chemical analysis

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Proceedings Article | 5 March 2019 Presentation

Mid-infrared waveguide evanescent wave sensing (Conference Presentation)

Ganapathy Senthil Murugan, Vinita Mittal, Marek Vlk, Jana Jagerska, James Wilkinson

Proceedings Volume 10914, 109140E (2019) https://doi.org/10.1117/12.2508591

KEYWORDS: Mid-IR, Waveguides, Wave sensors, Spectroscopy, Wafer-level optics, Environmental monitoring, Safety, Point-of-care devices, Diagnostics, Molecular spectroscopy

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Proceedings Article | 4 March 2019 Paper

Integration of mid-infrared SOI photonics with microfluidics

Yanli Qi, David Rowe, Vinita Mittal, Mehdi Banakar, Yangbo Wu, Milos Nedeljkovic, James Wilkinson, Goran Mashanovich

Proceedings Volume 10923, 109230I (2019) https://doi.org/10.1117/12.2507815

KEYWORDS: Waveguides, Microfluidics, Absorption, Semiconducting wafers, 3D modeling, Liquids, Silicon, Mid-IR, Cladding, Silicon photonics

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Proceedings Article | 23 February 2018 Paper

Group IV mid-infrared devices and circuits

G. Mashanovich, J. Soler Penadés, W. Cao, Z. Qu, A. Osman, Y. Wu, A. Khokhar, C. Littlejohns, S. Stankovic, S. Reynolds, V. Mittal, G. Murugan, J. Wilkinson, Y. Qi, F. Gardes, D. Thomson, M. Nedeljkovic

Proceedings Volume 10535, 1053512 (2018) https://doi.org/10.1117/12.2289531

KEYWORDS: Silicon, Waveguides, Germanium, Mid-IR, Modulators, Sensors, Absorption, Silicon photonics, Wave propagation, Light wave propagation

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Proceedings Article | 15 February 2018 Presentation + Paper

Tantalum pentoxide waveguides and microresonators for VECSEL based frequency combs

T. Chen Sverre, J. R. Woods, E. Shaw, Ping Hua, V. Apostolopoulos, J. Wilkinson, A. Tropper

Proceedings Volume 10515, 105150V (2018) https://doi.org/10.1117/12.2289773

KEYWORDS: Waveguides, Tantalum, Microresonators, Frequency combs, Silicon, Mode locking, Wave propagation, Resonators, Pulsed laser operation, Spectroscopy

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Proceedings Article | 14 March 2016 Paper

A low-cost technique for adding microlasers to a silicon photonic platform

Joan Juvert, Iain Eddie, Colin Mitchell, Graham Reed, James Wilkinson, Anthony Kelly, Steven Neale

Proceedings Volume 9752, 97520Y (2016) https://doi.org/10.1117/12.2209357

KEYWORDS: Optoelectronics, Dielectrophoresis, Silicon photonics, Optical tweezers, Semiconductor lasers, Standards development, Telecommunications, Liquids, Particles, Optical lithography, Light sources, Electrodes, Silicon, Projection systems, Microscopes

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Proceedings Article | 28 August 2015 Paper

Mid-infrared GeTe4 waveguides on silicon with a ZnSe isolation layer

Vinita Mittal, Chris Craig, Neil Sessions, Daniel Hewak, James Wilkinson, Ganapathy Murugan

Proceedings Volume 9609, 96090P (2015) https://doi.org/10.1117/12.2196663

KEYWORDS: Waveguides, Silicon, Silicon films, Mid-IR, Refractive index, Chalcogenides, Scanning electron microscopy, Photoresist materials, Thin films, Thin film deposition

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Proceedings Article | 27 February 2015 Paper

Group IV mid-infrared photonics

G. Mashanovich, M. Nedeljkovic, J. Soler Penades, C. Mitchell, A. Khokhar, C. Littlejohns, S. Stankovic, B. Troia, Y. Wang, S. Reynolds, V. M. Passaro, L. Shen, N. Healy, A. Peacock, C. Alonso-Ramos, A. Ortega-Monux, G. Wanguemert-Perez, I. Molina-Fernandez, D. Rowe, J. Wilkinson, P. Cheben, J. Ackert, A. Knights, D. Thomson, F. Gardes

Proceedings Volume 9367, 93670Q (2015) https://doi.org/10.1117/12.2176219

KEYWORDS: Waveguides, Silicon, Mid-IR, Germanium, Modulation, Photonics, Sensors, Resonators, Brain-machine interfaces, Photodetectors

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Proceedings Article | 15 October 2014 Paper

Optical deformation of red blood cells trapped on a narrow waveguide

Balpreet Ahluwalia, Peter McCourt, James Wilkinson, Thomas Huser, Olav Hellesø

Proceedings Volume 9164, 916424 (2014) https://doi.org/10.1117/12.2062590

KEYWORDS: Waveguides, Blood, Optical tweezers, Particles, Refractive index, Geometrical optics, Tantalum, Objectives, Physics, Light wave propagation

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Proceedings Article | 8 March 2014 Paper

High-contrast GeTe4 waveguides for mid-infrared biomedical sensing applications

Vinita Mittal, James Wilkinson, Ganapathy Murugan

Proceedings Volume 8988, 89881A (2014) https://doi.org/10.1117/12.2036972

KEYWORDS: Waveguides, Mid-IR, Sputter deposition, Biosensing, Etching, Ferroelectric materials, Reactive ion etching, Ellipsometry, Refractive index, Surface roughness

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Proceedings Article | 4 March 2011 Paper

Properties of rare earth doped thin film dielectric layers for upconversion laser waveguides

S. Pearce, M. Charlton, G. Parker, J. Wilkinson

Proceedings Volume 7912, 79122H (2011) https://doi.org/10.1117/12.883187

KEYWORDS: Waveguides, Thin films, Erbium, Luminescence, Tantalum, Plasma, Upconversion lasers, Oxygen, Annealing, Upconversion

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Proceedings Article | 23 February 2011 Paper

Structural and optical properties of different dielectric thin films for planar waveguiding applications

S. Pearce, M. D. Charlton, G. Parker, J. Wilkinson

Proceedings Volume 7934, 79341N (2011) https://doi.org/10.1117/12.883224

KEYWORDS: Thin films, Crystals, Oxygen, Yttrium, Oxides, Dielectrics, Refractive index, Waveguides, Scanning electron microscopy, Visible radiation

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Proceedings Article | 15 February 2011 Paper

Optical propulsion of mammalian eukaryotic cells on an integrated channel waveguide

M. Mohamad Shahimin, N. M. B. Perney, S. Brooks, N. Hanley, K. Wright, J. Wilkinson, T. Melvin

Proceedings Volume 7929, 792909 (2011) https://doi.org/10.1117/12.874019

KEYWORDS: Particles, Waveguides, Polymethylmethacrylate, Refractive index, Channel waveguides, Channel projecting optics, Integrated optics, Cesium, Optical tweezers, Polarization

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Proceedings Article | 26 February 2010 Paper

Novel fiber bottle microresonator add-drop filters

Ganapathy Senthil Murugan, James Wilkinson, Michalis Zervas

Proceedings Volume 7598, 75980K (2010) https://doi.org/10.1117/12.841798

KEYWORDS: Microresonators, Resonators, Optical filters, Neck, Fusion splicing, Standards development, Optical fibers, Fabrication, Sensors, Telecommunications

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Proceedings Article | 12 February 2010 Paper

Fabrication and optimization of Tantalum pentoxide waveguides for optical micro-propulsion

Balpreet Singh Ahluwalia, Olav Gaute Hellesø, Ananth Subramanian, Nicolas M. Perney, Neil Sessions, James Wilkinson

Proceedings Volume 7604, 76040W (2010) https://doi.org/10.1117/12.840393

KEYWORDS: Waveguides, Tantalum, Refractive index, Wave propagation, Particles, Absorption, Silicon, Annealing, Oxygen, Ion beams

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Proceedings Article | 8 February 2010 Paper

Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting

Balpreet Singh Ahluwalia, Olav Gaute Hellesø, Ananth Subramanian, James Wilkinson, Jie Chen, Xuyuan Chen

Proceedings Volume 7613, 76130R (2010) https://doi.org/10.1117/12.840632

KEYWORDS: Waveguides, Particles, Blood, Optical tweezers, Refractive index, Distortion, Tantalum, Silicon, Water, Optical sorting

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Proceedings Article | 3 April 2008 Paper

Q-factor and waveguide-sphere separation effects in waveguide-coupled microsphere resonators

Y. Panitchob, G. Senthil Murugan, M. Zervas, J. Wilkinson

Proceedings Volume 6793, 67930E (2008) https://doi.org/10.1117/12.799260

KEYWORDS: Waveguides, Optical spheres, Resonators, Data modeling, Waveguide modes, Potassium, Integrated optics, CCD cameras, Scattering, Wave propagation

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Proceedings Article | 24 February 2006 Paper

Manipulation of microparticles with integrated optics

Olav Gaute Helles, Katarina Grujic, J. Patrick Hole, Hitesh Jaising, James Wilkinson

Proceedings Volume 6123, 61230M (2006) https://doi.org/10.1117/12.647325

KEYWORDS: Particles, Waveguides, Integrated optics, Refractive index, Optical tweezers, Yeast, Water, Gold, Lab on a chip, Glasses

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Proceedings Article | 22 February 2006 Paper

Whispering gallery mode excitation in borosilicate glass microspheres by K⁺ ion-exchanged channel waveguide coupler

Katarina Grujic, J. Patrick Hole, Olav Gaute Hellesø, James Wilkinson

Proceedings Volume 6101, 61010L (2006) https://doi.org/10.1117/12.669565

KEYWORDS: Waveguides, Glasses, Particles, Channel waveguides, Resonators, Integrated optics, Light scattering, Borosilicate glass, Microscopes, Near field optics

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Proceedings Article | 1 July 2005 Paper

PCR device with integrated thermal cycling and fluorescence detection elements

M. Bahrami, T. Melvin, J. S. Wilkinson, A. G. R. Evans

Proceedings Volume 5836, (2005) https://doi.org/10.1117/12.608646

KEYWORDS: Photodiodes, Cadmium sulfide, Fluorescence spectroscopy, Luminescence, Semiconducting wafers, Optical filters, Silicon, Temperature sensors, Thin films, Chemical elements

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Proceedings Article | 21 March 2005 Paper

Generalized ultrafast dispersion scans of continuum generation induced by sub-50fs chirped pulses in highly nonlinear tapered planar waveguides

Matthew Praeger, William Brocklesby, Ana de Paula, Jeremy Frey, Jeremy Baumberg, Caterina Netti, Majd Zoorob, Nicolas Perney, Martin Charlton, Stephen Roberts, James Wilkinson, Greg Parker, John Lincoln

Proceedings Volume 5714, (2005) https://doi.org/10.1117/12.589346

KEYWORDS: Dispersion, Waveguides, Neodymium, Crystals, Acoustics, Planar waveguides, Modulation, Tantalum, Silicon, Pulsed laser operation

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Proceedings Article | 8 September 2004 Paper

Photopatterning of DNA oligonucleotides on silicon surfaces with micron-scale dimensions

Huabing Yin, Tom Brown, Robert Greef, Sakellaris Mailis, Rob Eason, James Wilkinson, Tracy Melvin

Proceedings Volume 5461, (2004) https://doi.org/10.1117/12.545736

KEYWORDS: Silicon, Gold, Scanning electron microscopy, Sodium, Ultraviolet radiation, Molecules, Glasses, Semiconducting wafers, Chemistry, Optical lithography

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Proceedings Article | 9 June 2004 Paper

Integrated optical immunofluorescence multisensor for river pollution

P. Hua, J. Hole, James Wilkinson, G. Proll, J. Tschmelak, Guenter Gauglitz, M. Jackson, R. Nudd, R. Abuknesha, J. Kaiser, Peter Kraemmer

Proceedings Volume 5502, (2004) https://doi.org/10.1117/12.566560

KEYWORDS: Sensors, Waveguides, Integrated optics, Luminescence, Computing systems, Calibration, Pollution, Statistical analysis, Fluorescence spectroscopy, Biosensors

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Proceedings Article | 9 June 2004 Paper

Simultaneous SPR and electrochemical sensing of an alkane-thiol self-assembled monolayer (SAM): toward an optical biosensor

A. Sheridan, P. Ngamukot, Philip Bartlett, James Wilkinson

Proceedings Volume 5502, (2004) https://doi.org/10.1117/12.566559

KEYWORDS: Gold, Electrodes, Waveguides, Sensors, Refractive index, Surface plasmons, Biosensors, Optical testing, Optical biosensors, Oxidation

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Proceedings Article | 15 December 1999 Paper

Integrated optical chemical and biochemical sensors

James Wilkinson

Proceedings Volume 3858, (1999) https://doi.org/10.1117/12.372928

KEYWORDS: Sensors, Waveguides, Thin films, Absorption, Gold, Integrated optics, Refractive index, Luminescence, Silica, Water

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Proceedings Article | 26 March 1999 Paper

Sensitivity enhancement of transducers for total internal reflection fluorescence

Albrecht Klotz, C. Barzen, Andreas Brecht, Richard Harris, G. Quigley, James Wilkinson, Guenter Gauglitz

Proceedings Volume 3620, (1999) https://doi.org/10.1117/12.343754

KEYWORDS: Waveguides, Luminescence, Transducers, Integrated optics, Sensors, Refractive index, Interfaces, Signal to noise ratio, Reflection, Thin films

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Proceedings Article | 18 December 1998 Paper

Integrated optical sensor system for beverage analysis

B. Luff, K. Kawaguchi, James Wilkinson

Proceedings Volume 3539, (1998) https://doi.org/10.1117/12.333741

KEYWORDS: Sensors, Integrated optics, Refractive index, Charge-coupled devices, Waveguides, Light emitting diodes, Signal detection, Transducers, CCD image sensors, Absorption

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