Overview

Gregory is from Dundee, Scotland, where he lived until moving to Glasgow in 2012 to undertake an MSci in physics at the University of Glasgow. Afterwards he moved to Imperial College London where he obtained a PhD in applied mathematics under Prof. Richard Craster, winning the Yael Dowker Prize for best mathematics PhD thesis for his research into wave propagation effects in structured materials. He continued at Imperial as a doctoral prize research fellow before being awarded a Research Fellowship from the Royal Commission for the Exhibition of 1851 at the University of Exeter in 2021. 

His research interests include manipulating wave propagation using structured materials and metamaterials, across a variety of wave regimes from electromagnetism to elasticity, with a focus on applications in energy harvesting and vibration control.

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Publications

_{Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.}

| 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2016 |

2024

• Moore D, Starkey T, Chaplain G. (2024) Acoustic metasurfaces with Frieze symmetries, The Journal of the Acoustical Society of America, volume 115, no. 1, pages 568-574, DOI:10.1121/10.0024359. [PDF]
• Moore D, Starkey T, Chaplain G. (2024) Acoustic Metasurfaces with Frieze Symmetries (dataset).

2023

• Chaplain GJ, Moore D, Hooper I, Hibbins A, Sambles J, Starkey T. (2023) Beyond-nearest-neighbour metamaterials, The Journal of the Acoustical Society of America, volume 154, no. 4_supplement, pages a156-a156, DOI:10.1121/10.0023108.
• Davies B, Chaplain GJ, Starkey TA, Craster RV. (2023) Graded Quasiperiodic Metamaterials Perform Fractal Rainbow Trapping, Physical Review Letters, volume 131, no. 17, article no. 177001, DOI:10.1103/physrevlett.131.177001. [PDF]
• Chaplain GJ, Gliozzi AS, Davies B, Urban D, Descrovi E, Bosia F, Craster RV. (2023) Tunable topological edge modes in Su–Schrieffer–Heeger arrays, Applied Physics Letters, volume 122, no. 22, DOI:10.1063/5.0152172. [PDF]
• Davies B, Chaplain G, Starkey T, Craster RV. (2023) Graded quasiperiodic metamaterials perform fractal rainbow trapping, DOI:10.48550/arXiv.2305.10520. [PDF]
• Chaplain GJ, Hooper IR, Hibbins AP, Starkey TA. (2023) Reconfigurable Elastic Metamaterials: Engineering Dispersion with Beyond Nearest Neighbors, Physical Review Applied, volume 19, no. 4, article no. 044061, DOI:10.1103/physrevapplied.19.044061. [PDF]
• De Ponti JM, Iorio L, Chaplain GJ, Corigliano A, Craster RV, Ardito R. (2023) Tailored Topological Edge Waves via Chiral Hierarchical Metamaterials, Physical Review Applied, volume 19, no. 3, article no. 034079, DOI:10.1103/physrevapplied.19.034079. [PDF]
• Chaplain G, Hooper I, Starkey T, Hibbins A. (2023) Reconfigurable elastic metamaterials: Engineering dispersion with beyond nearest neighbors (dataset).
• Moore D, Sambles J, Hibbins A, Starkey T, Chaplain G. (2023) Acoustic surface modes on metasurfaces with embedded next-nearest neighbor coupling (dataset).
• Moore D, Sambles JR, Hibbins AP, Starkey TA, Chaplain GJ. (2023) Acoustic surface modes on metasurfaces with embedded next-nearest-neighbor coupling, Physical review B, volume 107, DOI:10.1103/PhysRevB.107.144110. [PDF]

2022

• Moore D, Sambles J, Hibbins A, Starkey T, Chaplain G. (2022) Acoustic surface modes on metasurfaces with embedded next-nearest neighbor coupling, DOI:10.48550/arXiv.2212.06583.
• Chaplain GJ, De Ponti JM, Starkey TA. (2022) Elastic orbital angular momentum transfer from an elastic pipe to a fluid, Communications Physics, volume 5, no. 1, article no. 279, DOI:10.1038/s42005-022-01057-0. [PDF]
• Chaplain G, Starkey T, De Ponti JM. (2022) ExperimentalData.mat.zip.
• Chaplain G, Hooper I, Hibbins A, Starkey T. (2022) Reconfigurable Elastic Metamaterials: Engineering Dispersion with Meccano™, DOI:10.48550/arXiv.2206.10487.
• Chaplain G, Hooper I, Starkey T. (2022) Multi-scale Bullseye Antennas, Philosophical Transactions A, DOI:10.1098/rsta.2021.0402.
• Chaplain GJ, Ponti JMD, Starkey TA. (2022) Observation of Elastic Orbital Angular Momentum Transfer: Coupling Flexural Waves in Partially Submerged Pipes to Acoustic Waves in Fluids. [PDF]
• Chaplain GJ, De Ponti JM, Craster RV. (2022) Elastic Orbital Angular Momentum, Physical Review Letters, volume 128, no. 6, article no. 064301, DOI:10.1103/physrevlett.128.064301. [PDF]
• Chaplain GJ, De Ponti JM. (2022) The elastic spiral phase pipe, Journal of Sound and Vibration, volume 523, DOI:10.1016/j.jsv.2021.116718.

2021

• Chaplain GJ, Craster RV, Cole N, Hibbins AP, Starkey TA. (2021) Underwater Focusing of Sound by Umklapp Diffraction, Physical Review Applied, volume 16, no. 6, article no. 064029, DOI:10.1103/physrevapplied.16.064029. [PDF]
• Chaplain GJ, Ponti JMD, Craster RV. (2021) Elastic Orbital Angular Momentum, Phys. Rev. Lett, volume 128. [PDF]
• Chaplain GJ, Ponti JMD. (2021) The Elastic Spiral Phase Pipe, Journal of Sound and Vibration, volume 523. [PDF]
• Chaplain GJ, Craster RV, Cole N, Hibbins AP, Starkey TA. (2021) Underwater Focussing of Sound by Umklapp Diffraction. [PDF]
• Putley HJ, Chaplain GJ, Rakotoarimanga-Andrianjaka H, Maling B, Craster RV. (2021) Whispering-Bloch elastic circuits, Wave Motion, volume 105, pages 102755-102755, article no. 102755, DOI:10.1016/j.wavemoti.2021.102755. [PDF]
• Chaplain GJ, Craster RV. (2021) Surface corrugated laminates as elastic grating couplers: Splitting of SV- and P-waves by selective diffraction, Journal of Applied Physics, volume 129, no. 4, DOI:10.1063/5.0037804. [PDF]

2020

• Chaplain GJ, Pajer D, Ponti JMD, Craster RV. (2020) Rainbow reflection and trapping for energy harvesting. [PDF]
• Chaplain GJ, Pajer D, De Ponti JM, Craster RV. (2020) Delineating rainbow reflection and trapping with applications for energy harvesting, New Journal of Physics, volume 22, no. 6, pages 063024-063024, DOI:10.1088/1367-2630/ab8cae. [PDF]
• Chaplain GJ, De Ponti JM, Aguzzi G, Colombi A, Craster RV. (2020) Topological Rainbow Trapping for Elastic Energy Harvesting in Graded Su-Schrieffer-Heeger Systems, Physical Review Applied, volume 14, no. 5, article no. 054035, DOI:10.1103/physrevapplied.14.054035. [PDF]
• Chaplain GJ, De Ponti JM, Colombi A, Fuentes-Dominguez R, Dryburg P, Pieris D, Smith RJ, Clare A, Clark M, Craster RV. (2020) Tailored elastic surface to body wave Umklapp conversion, Nature Communications, volume 11, no. 1, article no. 3267, DOI:10.1038/s41467-020-17021-x. [PDF]
• Chaplain GJ, Craster RV. (2020) Ultrathin entirely flat Umklapp lenses, Physical Review B, volume 101, no. 15, article no. 155430, DOI:10.1103/physrevb.101.155430. [PDF]
• Georgantzis Garcia D, Chaplain GJ, Bělín J, Tyc T, Englert C, Courtial J. (2020) Optical triangulations of curved spaces, Optica, volume 7, no. 2, pages 142-142, DOI:10.1364/optica.378357. [PDF]

2019

• Makwana MP, Chaplain GJ. (2019) Tunable three-way valley Hall energy-splitter: venturing beyond graphene-like structures, Phys. Rev. Applied, volume 15. [PDF]
• Chaplain GJ, Craster RV. (2019) Flat lensing by graded line meta-arrays, Physical Review B, volume 99, no. 22, article no. 220102, DOI:10.1103/physrevb.99.220102. [PDF]
• Makwana MP, Chaplain G. (2019) Tunable three-way topological energy-splitter, Scientific Reports, volume 9, no. 1, article no. 18939, DOI:10.1038/s41598-019-55485-0. [PDF]
• Chaplain GJ, Makwana MP, Craster RV. (2019) Rayleigh–Bloch, topological edge and interface waves for structured elastic plates, Wave Motion, volume 86, pages 162-174, DOI:10.1016/j.wavemoti.2019.01.008. [PDF]

2016

• Tyc T, Oxburgh S, Cowie EN, Chaplain GJ, Macauley G, White CD, Courtial J. (2016) Omnidirectional transformation-optics cloak made from lenses and glenses, Journal of the Optical Society of America A, volume 33, no. 6, pages 1032-1032, DOI:10.1364/josaa.33.001032. [PDF]
• Chaplain GJ, Macauley G, Bělín J, Tyc T, Cowie EN, Courtial J. (2016) Ray optics of generalized lenses, Journal of the Optical Society of America A, volume 33, no. 5, pages 962-962, DOI:10.1364/josaa.33.000962. [PDF]
• Courtial J, Oxburgh S, Cowie EN, Chaplain G, Belin J, Macauley G, White CD, Tyc T. (2016) Progress towards omnidirectional transformation optics with lenses, SPIE Nanoscience + Engineering, Metamaterials, Metadevices, and Metasystems 2016, DOI:10.1117/12.2237843. [PDF]

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