Prof. Graham A. Turnbull Profile

Prof. Graham A. Turnbull

Professor at Univ of St Andrews

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Author

Publications (18)

Proceedings Article | 30 September 2024 Presentation

Advances in organic polariton lasers

Mengjie Wei, Hamid Ohadi, Graham Turnbull, Ifor D. Samuel

Proceedings Volume PC13127, PC131270L (2024) https://doi.org/10.1117/12.3028517

KEYWORDS: Polaritons, Organic semiconductors, Excitons, Semiconductors, Polymers, Oscillators, Materials properties, Laser damage threshold, Fabrication

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Proceedings Article | 1 October 2023 Presentation

Approaches to electrically driven organic semiconductor lasers

Kou Yoshida, Junyi Gong, Graham Turnbull, Ifor D. Samuel

Proceedings Volume PC12659, PC126590D (2023) https://doi.org/10.1117/12.2681784

KEYWORDS: Semiconductor lasers, Organic semiconductors, Polarons, Optical pumping, Laser optics

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Proceedings Article | 30 May 2022 Poster

Thermal control of organic semiconductor films for explosives detection

Edward Ogugu, Ross Gillanders, Graham Turnbull

Proceedings Volume PC12149, PC121491D (2022) https://doi.org/10.1117/12.2621638

KEYWORDS: Sensors, Organic semiconductors, Explosives detection, Molecules, Improvised explosive devices, Explosives, Excitons, Polymers, Luminescence, Land mines

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Proceedings Article | 30 May 2022 Presentation

Low-threshold polariton lasing in fluorene-based oligomers

Graham Turnbull, Mengjie Wei, Arvydas Ruseckas, Van T. Mai, Atul Shukla, Ilene Allison, Shih-Chun Lo, Ebinazar Namdas, Ifor D. Samuel

Proceedings Volume PC12149, PC121490V (2022) https://doi.org/10.1117/12.2621585

KEYWORDS: Polaritons, Optical microcavities, Laser damage threshold, Photons, Excitons, Organic semiconductors, Superposition, Semiconductors, Semiconductor lasers, Quasiparticles

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Proceedings Article | 20 August 2020 Presentation

Ultrafast OLEDs enable visible light communication at a gigabit per second

Ifor D. Samuel, Kou Yoshida, Pavlos Manousiadis, Rui Bian, Zhe Chen, Caroline Murawski, Malte Gather, Harald Haas, Graham Turnbull

Proceedings Volume 11473, 114730P (2020) https://doi.org/10.1117/12.2569249

KEYWORDS: Organic light emitting diodes, Visible radiation, Ultrafast phenomena, Organic optoelectronics, Optoelectronic devices, Spectroscopes, Ranging, Data communications, Internet

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Proceedings Article | 21 April 2017 Presentation

Evanescently pumped optofluidic distributed feedback lasers with aqueous gain fluids (Conference Presentation)

Markus Karl, Guy Whitworth, Marcel Schubert, Christof Dietrich, Ifor Samuel, Graham Turnbull, Malte Gather

Proceedings Volume 10081, 1008108 (2017) https://doi.org/10.1117/12.2250297

KEYWORDS: Refractive index, Dispersion, Biosensing, Diagnostics, Laser development, Waveguides, Biological detection systems, Laser marking, Nanosensors, Current controlled current source

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Proceedings Article | 28 January 2017 Paper

A comparative study of optical concentrators for visible light communications

Rahmat Mulyawan, Ariel Gomez, Hyunchae Chun, Sujan Rajbhandari, Pavlos Manousiadis, Dimali Vithanage, Grahame Faulkner, Graham Turnbull, Ifor D. Samuel, Stephen Collins, Dominic O'Brien

Proceedings Volume 10128, 101280L (2017) https://doi.org/10.1117/12.2252355

KEYWORDS: Modulation, Solar concentrators, Receivers, Visible radiation, Wireless communications, Compound parabolic concentrators, Optical communications, Sensors, Transmitters, Eye

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Proceedings Article | 13 September 2012 Paper

Strongly modified angular dependence of emission from OLEDs

Shuyu Zhang, Graham Turnbull, Ifor Samuel

Proceedings Volume 8476, 847615 (2012) https://doi.org/10.1117/12.931576

KEYWORDS: Organic light emitting diodes, Europium, Surface plasmons, Optical microcavities, Nanoimprint lithography, External quantum efficiency, Electroluminescence, Light scattering, Scattering, Waveguide modes

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Proceedings Article | 13 September 2012 Paper

Nanoimprinted resonators for polymer lasers pumped by light-emitting diodes

Graham Turnbull, Georgios Tsiminis, Yue Wang, Alexander Kanibolotsky, Peter Skabara, Ifor Samuel

Proceedings Volume 8476, 847611 (2012) https://doi.org/10.1117/12.928494

KEYWORDS: Polymers, Resonators, Semiconductor lasers, Laser damage threshold, Light emitting diodes, Laser resonators, Nanolithography, Silicon, Photonic crystals, Nanostructuring

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Proceedings Article | 17 September 2011 Paper

Conjugated polymer sensors for explosive vapor detection

Yue Wang, Graham Turnbull, Ifor D. Samuel

Proceedings Volume 8118, 81180E (2011) https://doi.org/10.1117/12.894413

KEYWORDS: Luminescence, Explosives, Polymers, Sensors, Nitrogen, Explosives detection, Polymeric sensors, Quenching (fluorescence), Signal detection, Molecules

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Proceedings Article | 2 September 2008 Paper

Light-emitting diode pumped polymer lasers

G. Turnbull, Y. Yang, P. Shaw, A. Ruseckas, I. D. Samuel

Proceedings Volume 7051, 70511E (2008) https://doi.org/10.1117/12.795883

KEYWORDS: Polymers, Light emitting diodes, Semiconductor lasers, Organic light emitting diodes, Pulsed laser operation, Polymer thin films, Laser damage threshold, Semiconductors, Laser resonators, Indium gallium nitride

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Proceedings Article | 1 May 2008 Paper

An organic semiconductor laser on silicon

A. Vasdekis, S. Moore, A. Ruseckas, T. Krauss, I. Samuel, G. Turnbull

Proceedings Volume 6996, 699606 (2008) https://doi.org/10.1117/12.786541

KEYWORDS: Silicon, Semiconductor lasers, Polymers, Mirrors, Organic semiconductors, Resonators, Hybrid silicon lasers, Silica, Reflectivity, Laser damage threshold

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Proceedings Article | 16 October 2007 Paper

Diode-pumped polymer lasers

G. A. Turnbull, A. E. Vasdekis, G. Tsiminis, I. D. W. Samuel

Proceedings Volume 6655, 66550W (2007) https://doi.org/10.1117/12.735987

KEYWORDS: Polymers, Semiconductor lasers, Mirrors, Absorption, Laser damage threshold, Energy transfer, Diodes, Resonators, Polymer thin films, Luminescence

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Proceedings Article | 26 September 2007 Paper

Shrinking polymer lasers

I.D.W. Samuel, A. Vasdekis, G. Tsiminis, G. Turnbull, E. Taylor

Proceedings Volume 6713, 671304 (2007) https://doi.org/10.1117/12.735712

KEYWORDS: Polymers, Semiconductor lasers, Semiconductors, Mirrors, Absorption, Luminescence, Polymer thin films, Laser damage threshold, Energy transfer, Photonics

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Proceedings Article | 9 October 2005 Paper

Novel diffractive feedback structures for semiconducting polymer lasers

A. Vasdekis, G. Turnbull, I. D. Samuel, G. Town

Proceedings Volume 5937, 59371O (2005) https://doi.org/10.1117/12.616863

KEYWORDS: Polymers, Laser damage threshold, Semiconductors, Semiconductor lasers, Diffraction gratings, Diffraction, Modulation, Scattering, Resonators, Modes of laser operation

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Proceedings Article | 8 October 2005 Paper

Semiconducting polymer optical amplifiers

M. Goosens, G. Heliotis, G. Turnbull, A. Ruseckas, J. Lawrence, R. Xia, D. D. Bradley, Ifor D. Samuel

Proceedings Volume 5937, 593706 (2005) https://doi.org/10.1117/12.624672

KEYWORDS: Optical amplifiers, Polymers, Semiconductors, Solid state electronics, Organic semiconductors, Absorption, Luminescence, Laser beam diagnostics, Optical semiconductors, Optical fibers

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Proceedings Article | 27 August 2005 Paper

Holographic recording of sub-micron period gratings and photonic crystals in the photoresist SU8

Fiona Bain, Andreas Vasdekis, Graham Turnbull

Proceedings Volume 5931, 59311B (2005) https://doi.org/10.1117/12.616718

KEYWORDS: Diffraction gratings, Photonic crystals, Photoresist materials, Mirrors, Holography, Interferometers, Polymers, Ultraviolet radiation, Refractive index, Helium cadmium lasers

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Proceedings Article | 13 June 2002 Paper

Photonic band structure and emission characteristics of a metal-backed polymeric distributed feedback laser

Piers Andrew, Graham Turnbull, William Barnes, Ifor Samuel

Proceedings Volume 4642, (2002) https://doi.org/10.1117/12.470440

KEYWORDS: Polymers, Reflectivity, Luminescence, Silver, Metals, Scattering, Laser damage threshold, Waveguide modes, Organic light emitting diodes, Light emitting diodes

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Showing 5 of 18 publications

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