Prof. John F. Donegan Profile

Prof. John F. Donegan

Director of Semiconductor Photonics Group at Trinity College Dublin

SPIE Involvement:

Author

Publications (34)

Proceedings Article | 5 October 2023 Presentation

Control of nonlinear thermoelectric transport in near-field plasmonic resonators

Frank Bello, Daniel Clarke, Illya Tarasenko, John Donegan, Ortwin Hess

Proceedings Volume PC12648, PC1264802 (2023) https://doi.org/10.1117/12.2678957

KEYWORDS: Nonlinear control, Quantum plasmonics, Near field, Resonators, Thin films, Quantum technology applications, Quantum light, Quantum entanglement, Quantum emitters, Quantum devices

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Proceedings Article | 25 February 2020 Paper

Athermal chirp-compensated directly modulated PIC for uncooled DWDM

Gaurav Jain, Prince Anandarajah, Robert McKenna, Deseada Gutierrez-Pascual, Frank Smyth, Jules Braddell, John Donegan

Proceedings Volume 11283, 112831X (2020) https://doi.org/10.1117/12.2543878

KEYWORDS: Photonic integrated circuits, Modulation, Temperature metrology, Dense wavelength division multiplexing, Reflectors, Transmitters, Laser optics, Integrated optics, Eye, Semiconductor lasers

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Proceedings Article | 29 November 2012 Paper

Single facet slotted Fabry-Perot laser and its application in photonic integrated circuits

Hua Yang, Padraic Morrissey, Qiao Lu, William Cotter, Chris Daunt, James O’Callaghan, Wei Guo, Wei Han, John Donegan, Brian Corbett, Frank Peters

Proceedings Volume 8552, 85520C (2012) https://doi.org/10.1117/12.2001069

KEYWORDS: Photonic integrated circuits, Waveguides, Brain-machine interfaces, Mirrors, Etching, Semiconductor lasers, Laser development, Integrated circuit design, Fabry–Perot interferometers, Integrated circuits

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Proceedings Article | 10 October 2012 Paper

Extension of the spectral range of bacteriorhodopsin functional activity by energy transfer from quantum dots

Vladimir Oleinikov, Nicolas Bouchonville, Alyona Sukhanova, Michael Molinari, Svetlana Sizova, Konstantin Mochalov, Anton Chistyakov, Evgeniy Lukashev, Aliaksandra Rakovich, John Donegan, Igor Nabiev

Proceedings Volume 8464, 84640Z (2012) https://doi.org/10.1117/12.929764

KEYWORDS: Fluorescence resonance energy transfer, Promethium, Phase modulation, Quantum dots, Energy transfer, Solar energy, Nanocrystals, Molecules, Luminescence, Absorption

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Proceedings Article | 16 November 2011 Paper

Optimization of parameters of photonic nanojet generated by dielectric microsphere for laser nanojet SNOM

Jing Jing Wang, David McCloskey, John Donegan

Proceedings Volume 8321, 83213Z (2011) https://doi.org/10.1117/12.905769

KEYWORDS: Photonic nanostructures, Near field scanning optical microscopy, Dielectrics, Spatial resolution, Silicon, Finite element methods, Near field optics, Raman spectroscopy, Numerical simulations, Laser energy

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Proceedings Article | 9 September 2011 Paper

An optical trap based on conical refraction of light

David O'Dwyer, Ciaran Phelan, Kyle Ballantine, Y. Rakovich, James Lunney, John Donegan

Proceedings Volume 8097, 80971I (2011) https://doi.org/10.1117/12.892416

KEYWORDS: Particles, Crystals, Polarization, Optical tweezers, Laser crystals, Refraction, Diffraction, Gaussian beams, Blood, Refractive index

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Proceedings Article | 20 May 2009 Paper

Energy transfer processes in semiconductor quantum dots: bacteriorhodopsin hybrid system

Aliaksandra Rakovich, Alyona Sukhanova, Nicolas Bouchonville, Michael Molinari, Michel Troyon, Jacques H. Cohen, Yury Rakovich, John Donegan, Igor Nabiev

Proceedings Volume 7366, 736620 (2009) https://doi.org/10.1117/12.821731

KEYWORDS: Luminescence, Nanocrystals, Proteins, Absorption, Energy transfer, Semiconductors, Quantum dots, Solar energy, Absorbance, Fluorescence correlation spectroscopy

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Proceedings Article | 17 September 2008 Paper

Polarisation distribution for internal conical diffraction and the superposition of zero and first order Bessel beams

D. O'Dwyer, C. Phelan, Y. Rakovich, T. Cizmar, K. Dholakia, J. Donegan, J. Lunney

Proceedings Volume 7062, 70620W (2008) https://doi.org/10.1117/12.804258

KEYWORDS: Polarization, Bessel beams, Geometrical optics, Crystals, Diffraction, Superposition, Refraction, Laser crystals, Beam propagation method, Gaussian beams

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Proceedings Article | 5 March 2008 Paper

Photonic molecule modes in coupled spherical microcavities with CdTe nanocrystals

Konstantin Rusakou, Anatoly Gladyshchuk, Sergey Chugunov, Yury Rakovich, John Donegan, Andrey Rogach, Nikolay Gaponik

Proceedings Volume 7009, 70090H (2008) https://doi.org/10.1117/12.793330

KEYWORDS: Phase modulation, Optical spheres, Spherical lenses, Optical microcavities, Molecular photonics, Nanocrystals, Molecules, Picosecond phenomena, Chemical species, Mie scattering

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Proceedings Article | 7 February 2008 Paper

Symmetric photonic molecules formed from coupled microspheres

John Donegan, Matthias Gerlach, Yury Rakovich

Proceedings Volume 6872, 68720I (2008) https://doi.org/10.1117/12.775751

KEYWORDS: Molecular photonics, Molecules, Optical spheres, Phase modulation, Charged particle optics, Optical microcavities, Photonic nanostructures, Molecular lasers, Photonic microstructures, Promethium

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SPIE Journal Paper | 1 February 2008

Mode referencing of an external cavity diode laser for continuous frequency stabilization

David McInerney, Michael Lynch, John Donegan, Vincent Weldon

OE, Vol. 47, Issue 02, 024301, (February 2008) https://doi.org/10.1117/12.10.1117/1.2844700

KEYWORDS: Laser stabilization, Semiconductor lasers, Ferroelectric materials, Absorption, Modulation, Wavelength tuning, Temperature metrology, Signal detection, Control systems, Photodiodes

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Proceedings Article | 7 November 2007 Paper

New optical cylindrical microresonators

Yurii Gun'ko, Sivakumar Balakrishnan, Joseph McCarthy, Yuri Rakovich, John Donegan, Tatiana Perova, Vasily Melnikov

Proceedings Volume 6739, 67391F (2007) https://doi.org/10.1117/12.737362

KEYWORDS: Silicon, Glasses, Luminescence, Scanning electron microscopy, Optical microcavities, Composites, Microresonators, Polarization, Spectroscopy, Microscopes

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Proceedings Article | 31 July 2007 Paper

Photonic molecules modes in resonantly coupled spherical microcavities with semiconductor nanocrystals

Y. Rakovich, M. Gerlach, A. Bradley, J. Donegan, T. Connolly, J. Boland, N. Gaponik, A. Rogach

Proceedings Volume 6728, 67282Q (2007) https://doi.org/10.1117/12.752387

KEYWORDS: Phase modulation, Optical spheres, Spherical lenses, Optical microcavities, Molecular photonics, Molecules, Picosecond phenomena, Nanocrystals, Chemical species, Semiconductors

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Proceedings Article | 12 June 2007 Paper

Amplified spontaneous emission from a microtube cavity with whispering gallery modes

Y. Rakovich, S. Balakrishnan, Y. Gun’ko, T. Perova, A. Moore, J. Donegan

Proceedings Volume 6593, 65932G (2007) https://doi.org/10.1117/12.717730

KEYWORDS: Optical microcavities, Glasses, Fluorescence lifetime imaging, Scanning electron microscopy, Photonics, Luminescence, Microresonators, Polarization, Polarizers, Dielectric polarization

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Proceedings Article | 14 February 2007 Paper

Confined modes in photonic microtube structures

John Donegan, Yury Rakovich, Yurii Gun'ko, Tania Perova, R. Alan Moore

Proceedings Volume 6452, 64520Y (2007) https://doi.org/10.1117/12.714362

KEYWORDS: Optical microcavities, Glasses, Scanning electron microscopy, Luminescence, Photonic microstructures, Microresonators, Fluorescence lifetime imaging, Polarizers, Microscopes, Polarization

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Proceedings Article | 28 September 2005 Paper

Interaction of surface plasmons with CdTe quantum dot excitons

K. Vamsi, Yu. Rakovich, A. Bradley, J. Donegan, B. Doggett, T. Donnelly, J. Lunney, N. Gaponik, A. Susha

Proceedings Volume 5955, 59550L (2005) https://doi.org/10.1117/12.622601

KEYWORDS: Gold, Metals, Surface plasmons, Silver, Luminescence, Polymers, Excitons, Nanostructuring, Nanoparticles, Absorption

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Proceedings Article | 7 July 2005 Paper

Coupled cavity modes in photonic molecules with semiconductor nanocrystals

Y. Rakovich, N. Gaponik, A. Rogach, M. Gerlach, A. Bradley, T. Connolly, J. Boland, J. Donegan

Proceedings Volume 5840, (2005) https://doi.org/10.1117/12.607354

KEYWORDS: Phase modulation, Optical spheres, Spherical lenses, Molecular photonics, Optical microcavities, Molecules, Picosecond phenomena, Nanocrystals, Chemical species, Semiconductors

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Proceedings Article | 8 June 2005 Paper

Three dimensional confocal microscopy of fluorescent microspheres: imaging and size determination

Y. Rakovich, L. Yang, C. Taylor, L. Dunbar, Aaron Mac Raighne, J. Donegan, Eithne McCabe

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.604380

KEYWORDS: Optical spheres, Confocal microscopy, Microscopes, 3D image processing, Spherical lenses, Nanocrystals, Optical microcavities, Luminescence, Objectives, Polarization

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