Zobrazeno 1 - 10
of 18
pro vyhledávání: '"E D Le Boulbar"'
Publikováno v:
Optics express. 27(5)
Displacement Talbot lithography (DTL) is a new technique for patterning large areas with sub-micron periodic features with low cost. It has applications in fields that cannot justify the cost of deep-UV photolithography, such as plasmonics, photonic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5bfc51a9a0d464b7e4c39b3af13ce4a1
https://pubmed.ncbi.nlm.nih.gov/30876189
https://pubmed.ncbi.nlm.nih.gov/30876189
Autor:
Duncan W. E. Allsopp, Tao Wang, Martin J Cryan, Jonathan R. Pugh, Philip A. Shields, S. Jia, Krishna C. Balram, E. D. Le Boulbar
Publikováno v:
Frontiers in Optics / Laser Science.
GaN grating couplers and a distributed Bragg reflector cavity are fabricated using displacement Talbot lithography on GaN-on-sapphire. Cavity resonances are simulated and measured for two devices with Q factors of ~200.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd5cc835bda79cfb4044f85df606dc25
https://doi.org/10.1364/fio.2018.jtu3a.86
https://doi.org/10.1364/fio.2018.jtu3a.86
Autor:
Jon R Pugh, M. Athanasiou, Duncan W. E. Allsopp, E. D. Le Boulbar, Martin J Cryan, Gunnar Kusch, Robert W. Martin, Tao Wang, R. M. Smith, Andrei Sarua, Philip A. Shields, Pierre-Marie Coulon
Publikováno v:
Optics Express
Coulon, P M, Pugh, J R, Athanasiou, M, Kusch, G, Le Boulbar, E D, Sarua, A, Smith, R, Martin, R W, Wang, T, Cryan, M, Allsopp, D W E & Shields, P A 2017, ' Optical properties and resonant cavity modes in axial InGaN/GaN nanotube microcavities ', Optics Express, vol. 25, no. 23, pp. 28246-28257 . https://doi.org/10.1364/OE.25.028246
Coulon, P M, Pugh, J R, Athanasiou, M, Kusch, G, Le Boulbar, E D, Sarua, A, Smith, R, Martin, R W, Wang, T, Cryan, M, Allsopp, D W E & Shields, P A 2017, ' Optical properties and resonant cavity modes in axial InGaN/GaN nanotube microcavities ', Optics Express, vol. 25, no. 23, pp. 28246-28257 . https://doi.org/10.1364/OE.25.028246
Microcavities based on group-III nitride material offer a notable platform for the investigation of light-matter interactions as well as the development of devices such as high efficiency light emitting diodes (LEDs) and low-threshold nanolasers. Dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abc7c437c9a539d9daef520323355282
https://eprints.whiterose.ac.uk/123860/1/Optics-express-1.pdf
https://eprints.whiterose.ac.uk/123860/1/Optics-express-1.pdf
Publikováno v:
Le Boulbar, E, Lis, S, Chausse, P & Shields, P 2017, ' Displacement Talbot lithography: an alternative technique to fabricate nanostructured metamaterials ', Proceedings of SPIE-The International Society for Optical Engineering, vol. 10248, 102480Q . https://doi.org/10.1117/12.2265774
Nanostructured materials are essential for many recent electronic, magnetic and optical devices. Lithography is the most common step used to fabricate organized and well calibrated nanostructures. However, feature sizes less than 200 nm usually requi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fd77b15ab2be48e3298e50a9abf7bd5
https://doi.org/10.1117/12.2265774
https://doi.org/10.1117/12.2265774
Autor:
D.W.E. Allsopp, Philip A. Shields, Colin J. Humphreys, E. D. Le Boulbar, Christopher X. Ren, James T. Griffiths, P. M. Coulon, CG Bryce, Robert W. Martin, Ashley Howkins, Rachel A. Oliver, Ionut Girgel, Ian W. Boyd
Publikováno v:
Griffiths, J T, Ren, C X, Coulon, P M, Le Boulbar, E D, Bryce, C G, Girgel, I, Howkins, A, Boyd, I, Martin, R W, Allsopp, D W E, Shields, P A, Humphreys, C J & Oliver, R A 2017, ' Structural impact on the nanoscale optical properties of InGaN core-shell nanorods ', Applied Physics Letters, vol. 110, no. 17, 172105 . https://doi.org/10.1063/1.4982594
III-nitride core-shell nanorods are promising for the development of high efficiency light emitting diodes and novel optical devices. We reveal the nanoscale optical and structural properties of core-shell InGaN nanorods formed by combined top-down e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::064952fa974612a0fddaffec13b32fe1
Autor:
Jemima M. Tabeart, Marie-Laure Hicks, Duncan W. E. Allsopp, Michael Edwards, A C E Dent, Christopher R. Bowen, E. D. Le Boulbar
Publikováno v:
Integrated Ferroelectrics. 133:17-24
This paper aims to review the consistency of existing GaN stiffness data and measure the high temperature elastic moduli of free-standing (0001) GaN. Dynamic mechanical thermal analysis (DMTA) and impact excitation were used to determine the E33 elas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c17287f30166ac83b5f7a2f7422996a
https://doi.org/10.1080/10584587.2012.663309
https://doi.org/10.1080/10584587.2012.663309
Autor:
Christopher R. Bowen, E. D. Le Boulbar
Publikováno v:
2015 Joint IEEE International Symposium on the Applications of Ferroelectric (ISAF), International Symposium on Integrated Functionalities (ISIF), and Piezoelectric Force Microscopy Workshop (PFM).
In this study we report the energy harvesting via piezoelectric Y-cut LiNbO 3 (010) crystal under oscillated vibration at temperature from 200°C to 500°C. The aim of the study was to investigate to the potential of LiNbO 3 for high temperature appl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb62e8a348aa63dacf5a2199d3922531
https://doi.org/10.1109/isaf.2015.7172729
https://doi.org/10.1109/isaf.2015.7172729
Publikováno v:
Bowen, C, Taylor, J, Le Boulbar, E, Zabek, D A & Topolov, V Y 2015, ' A modified figure of merit for pyroelectric energy harvesting ', Materials Letters, vol. 138, pp. 243-246 . https://doi.org/10.1016/j.matlet.2014.10.004
This paper reports a new figure of merit for the selection of pyroelectric materials for thermal energy harvesting applications, for example, when the material is exposed to heat or radiation of a specified power density. The figure of merit put forw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab9c2ac18a86650ca37a3755c7db03d7
https://purehost.bath.ac.uk/ws/files/133701571/New_pyroelectric_figure_of_merit_Materials_Letters_Materials_Revised.pdf
https://purehost.bath.ac.uk/ws/files/133701571/New_pyroelectric_figure_of_merit_Materials_Letters_Materials_Revised.pdf
Autor:
E. D. Le Boulbar, Arantxa Vilalta-Clemente, Benjamin Hourahine, Ken Mingard, Angus J. Wilkinson, Val O'Shea, Colin J. Humphreys, Jochen Bruckbauer, Peter J. Parbrook, Rachel A. Oliver, N. Allehiani, A. P. Day, G. Naresh-Kumar, Gunnar Kusch, Robert W. Martin, David M. Thomson, Paul R. Edwards, S. Kraeusel, Dzmitry Maneuski, Menno J. Kappers, Aimo Winkelmann, Michelle A. Moram, S. Vespucci, Carol Trager-Cowan, Philip A. Shields, C. Mauder
Publikováno v:
Trager-Cowan, C, Naresh-Kumar, G, Allehiani, N, Kraeusel, S, Hourahine, B, Vespucci, S, Thomson, D, Bruckbauer, J, Kusch, G, Edwards, P R, Martin, R W, Mauder, C, Day, A P, Winkelmann, A, Vilalta-Clemente, A, Wilkinson, A J, Parbrook, P J, Kappers, M J, Moram, M A, Oliver, R A, Humphreys, C J, Shields, P, Le Boulbar, E D, Maneuski, D, O'Shea, V & Mingard, K P 2014, ' Electron channeling contrast imaging of defects in III-nitride semiconductors ', Microscopy and Microanalysis, vol. 20, no. 3, pp. 1024-1025 . https://doi.org/10.1017/S1431927614006849
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7da986e35c316f866e3db658824353d7
https://purehost.bath.ac.uk/ws/files/126389979/ECCI_Nitride_defects_M_M2014.pdf
https://purehost.bath.ac.uk/ws/files/126389979/ECCI_Nitride_defects_M_M2014.pdf
Autor:
Duncan W. E. Allsopp, Christopher J. Lewins, Alexander Satka, Robert W. Martin, Philip A. Shields, Paul R. Edwards, Ionut Girgel, E. D. Le Boulbar
Publikováno v:
Le Boulbar, E D, Girgel, I, Lewins, C J, Edwards, P R, Martin, R W, Šatka, A, Allsopp, D W E & Shields, P A 2013, ' Facet recovery and light emission from GaN/InGaN/GaN core-shell structures grown by metal organic vapour phase epitaxy on etched GaN nanorod arrays ', Journal of Applied Physics, vol. 114, no. 9, 094302 . https://doi.org/10.1063/1.4819440
Journal of Applied Physics
Journal of Applied Physics
The use of etched nanorods from a planar template as a growth scaffold for a highly regular GaN/InGaN/GaN core-shell structure is demonstrated. The recovery of m-plane non-polar facets from etched high-aspect-ratio GaN nanorods is studied with and wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9c68150f4a2d26012a7762d0a9f4375
https://purehost.bath.ac.uk/ws/files/15223699/JApplPhys_114_094302.pdf
https://purehost.bath.ac.uk/ws/files/15223699/JApplPhys_114_094302.pdf