Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Anthony J. Kent"'
Autor:
Iaroslav A. Mogunov, Sergiy Lysenko, Anatolii E. Fedianin, Félix E. Fernández, Armando Rúa, Anthony J. Kent, Andrey V. Akimov, Alexandra M. Kalashnikova
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Ultrafast driving of vanadium dioxide can induce a large structural phase transition, which can be used to generate picosecond strain pulses. Here the authors show that the photo-induced phase transition can contribute 0.45% strain without causing un
Externí odkaz:
https://doaj.org/article/794bef80937043c8953e1e6ef2b1cfc8
Autor:
Anthony J. Kent, A. V. Akimov, Iaroslav A. Mogunov, Anatolii E. Fedianin, Félix E. Fernández, Alexandra M. Kalashnikova, Sergiy Lysenko, Armando Rúa
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Picosecond strain pulses are a versatile tool for investigation of mechanical properties of meso- and nano-scale objects with high temporal and spatial resolutions. Generation of such pulses is traditionally realized via ultrafast laser excitation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec85fab1a759e22d4ae089f1dad989d2
https://doaj.org/article/794bef80937043c8953e1e6ef2b1cfc8
https://doaj.org/article/794bef80937043c8953e1e6ef2b1cfc8
Autor:
Norzaini Zainal, Muhamad Ikram Md Taib, Anthony J. Kent, Wan Maryam Wan Ahmad Kamil, Takashi Egawa, Ahmad Shuhaimi Abu Bakar, Ezzah Azimah Alias
A crack-free indium gallium nitride (InGaN) based light emitting diode (LED) grown on silicon (Si) substrate was successfully demonstrated by introducing aluminium nitride/gallium nitride (AlN/GaN) superlattice structure (SLS) in the growth of the LE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20ac17d82a89a097073b1d5d1b23f675
Publikováno v:
Novel In-Plane Semiconductor Lasers XX.
The fast modulation of lasers is a fundamental requirement for applications in optical communications, high-resolution spectroscopy and metrology. Here, we report a new mechanism to modulate the emission from a terahertz frequency quantum cascade las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3deb326de4856c15a76f464889d06406
https://doi.org/10.1117/12.2577555
https://doi.org/10.1117/12.2577555
A circular mesa (400 μm diameter) GaAs p+-i-n+ photodiode with a 30 μm thick i layer was characterized for its performance as a detector in photon counting x-ray spectroscopy at 20 °C. The detector was fabricated from material grown by molecular b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7530130fbe150801f6110d247445fefc
http://sro.sussex.ac.uk/id/eprint/97496/1/Lioliou_2021_Mater._Res._Express_8_025909.pdf
http://sro.sussex.ac.uk/id/eprint/97496/1/Lioliou_2021_Mater._Res._Express_8_025909.pdf
Autor:
Anthony J. Kent, Amalia Patanè, Joseph A. Page, Mark Greenaway, Wenjing Yan, Alexander G. Balanov, A. V. Akimov
Publikováno v:
Advanced Functional Materials
The interplay between the strong intralayer covalent-ionic bonds and the weak interlayer van der Waals (vdW) forces between the neighboring layers of vdW crystals gives rise to unique physical and chemical properties. Here, the intralayer and interla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff39579a32a3b6c8d40138680142c493
Autor:
A. V. Akimov, Ia. A. Mogunov, S. Lysenko, Anthony J. Kent, Félix E. Fernández, Armando Rúa, A. V. Muratov, Alexandra M. Kalashnikova
Publikováno v:
Physical Review Materials. 4
We use a picosecond ultrasonic technique to evaluate the photoelastic parameters at the wavelength of 1028 nm in epitaxial vanadium dioxide $({\mathrm{VO}}_{2})$ nanolayers grown on c-cut sapphire substrates. In the experiments, we monitor the picose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::250aaa82c52729f2c14a83a5f78b0f46
https://doi.org/10.1103/physrevmaterials.4.125201
https://doi.org/10.1103/physrevmaterials.4.125201
We observe coherent acoustic phonon superoscillations at sub-terahertz frequencies. The superoscillations result from the interference of optically excited coherent longitudinal acoustic phonon modes in a GaAs/AlGaAs superlattice. The superoscillatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dab571ceb8c2ad780c859b6956e53c27
Autor:
Anthony J. Kent, R. P. Campion, T. M. Fromhold, Alexander G. Balanov, Caroline L. Poyser, Feiran Wang, Mark Greenaway, A. V. Akimov
We investigate the effect of hypersonic (> 1 GHz) acoustic phonon wavepackets on electron transport in a semiconductor superlattice. Our quantum mechanical simulations demonstrate that a GHz train of picosecond deformation strain pulses propagating t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0bc005d717bde0bdb11a165d8cbcdfb
http://arxiv.org/abs/2003.11969
http://arxiv.org/abs/2003.11969
Autor:
Alexander Valavanis, Iman Kundu, John Cunningham, Aniela Dunn, Edmund H. Linfield, Paul Dean, Lianhe Li, Aleksandar Demić, Dragan Indjin, M. Salih, Anthony J. Kent, Caroline L. Poyser, A. V. Akimov, Alexander Giles Davies
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Nature Communications
Nature Communications
The fast modulation of lasers is a fundamental requirement for applications in optical communications, high-resolution spectroscopy and metrology. In the terahertz-frequency range, the quantum-cascade laser (QCL) is a high-power source with the poten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdf44baa916c4885dd4b033134e0d709
https://eprints.whiterose.ac.uk/155418/14/s41467-020-14662-w.pdf
https://eprints.whiterose.ac.uk/155418/14/s41467-020-14662-w.pdf