Zobrazeno 1 - 10
of 41
pro vyhledávání: '"D. S. Jessop"'
Autor:
S. J. Kindness, D. S. Jessop, B. Wei, R. Wallis, V. S. Kamboj, L. Xiao, Y. Ren, P. Braeuninger-Weimer, A. I. Aria, S. Hofmann, H. E. Beere, D. A. Ritchie, R. Degl’Innocenti
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract Active control of the amplitude and frequency of terahertz sources is an essential prerequisite for exploiting a myriad of terahertz applications in imaging, spectroscopy, and communications. Here we present a optoelectronic, external modula
Externí odkaz:
https://doaj.org/article/a799a2f66a9f451d972f09126775f8cb
Autor:
Alexandra L. Martin, Stefan J. Marciniak, Paul Bresser, Frank McCaughan, S. Tomassetti, Charlotte Tyson, Amerjit Kang, Muriel Delvaux, Claire Harris, D. S. Jessop, Renaud Louis, Anna Julie Peired, Simona Pollini, Tony Cooke, Wesley H. V. Nix, Marc P. van der Schee, Paul H. M. Savelkoul, Nynke Dijkstra, Max Allsworth, Doriane Calmes, Alexandra de Saedeleer, Kirk L. Pappan, Benoit Ernst, Julien Guiot, Jacqui Galloway, Agnieszka Smolinska, Tom Dymond, Mike Morel, Viresh Jagesar, Martine P. Bos, Erik V. H. Beuken, Andries E. Budding, Matt Clancy
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports, 11(1):13476. Nature Publishing Group
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports, 11(1):13476. Nature Publishing Group
Face masks and personal respirators are used to curb the transmission of SARS-CoV-2 in respiratory droplets; filters embedded in some personal protective equipment could be used as a non-invasive sample source for applications, including at-home test
Autor:
Federica Bianco, Luca Masini, Yuqing Wu, Riccardo Degl'Innocenti, Harvey E. Beere, D. S. Jessop, Alessandro Tredicucci, Yash D. Shah, Yuan Ren, David A. Ritchie, A. Klimont, Andrea Ottomaniello
Publikováno v:
Journal of applied physics (online) 126 (2019). doi:10.1063/1.5120025
info:cnr-pdr/source/autori:Klimont A.; Ottomaniello A.; Degl'innocenti R.; Masini L.; Bianco F.; Wu Y.; Shah Y.D.; Ren Y.; Jessop D.S.; Tredicucci A.; Beere H.E.; Ritchie D.A./titolo:Line-defect photonic crystal terahertz quantum cascade laser/doi:10.1063%2F1.5120025/rivista:Journal of applied physics (online)/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:126
info:cnr-pdr/source/autori:Klimont A.; Ottomaniello A.; Degl'innocenti R.; Masini L.; Bianco F.; Wu Y.; Shah Y.D.; Ren Y.; Jessop D.S.; Tredicucci A.; Beere H.E.; Ritchie D.A./titolo:Line-defect photonic crystal terahertz quantum cascade laser/doi:10.1063%2F1.5120025/rivista:Journal of applied physics (online)/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:126
The terahertz (THz) quantum cascade laser (QCL) provides a versatile tool in a plethora of applications ranging from spectroscopy to astronomy and communications. In many of these fields, compactness, single mode frequency emission, and low threshold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff8b506c150514de2bc24c008b3f029
http://hdl.handle.net/11568/1019399
http://hdl.handle.net/11568/1019399
Autor:
Harvey E. Beere, Riccardo Dcgl'Innoccnti, David A. Ritchie, D. S. Jessop, Stephan Hofmann, Philipp Braeuninzer-Weimer, J. Axel Zeitler, Varun S. Kamboi, Hungyen Lin
Publikováno v:
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Graphene conductivity mapping was successfully demonstrated using terahertz time-domain spectroscopy (THz-TDS) operating in transmission geometry. In order to cater for a greater range of substrates and scenarios where transmission geometry becomes p
Autor:
R, Wallis, R Degl, Innocenti, D S, Jessop, O, Mitrofanov, C M, Bledt, J E, Melzer, J A, Harrington, H E, Beere, D A, Ritchie
Publikováno v:
Optics express. 24(26)
The field of terahertz (THz) waveguides continues to grow rapidly, with many being tailored to suit the specific demands of a particular final application. Here, we explore waveguides capable of enabling efficient and accurate power delivery within c
Autor:
Stephan Hofmann, R. Wallis, David A. Ritchie, Binbin Wei, R. Degl'lnnocenti, Long Xiao, Varun S. Kamboj, Stephen J. Kindness, Philipp Braeuninger-Weimer, D. S. Jessop, Yuan Ren, Harvey E. Beere
Publikováno v:
Conference on Lasers and Electro-Optics.
We present the optoelectronic frequency and amplitude modulation of a terahertz quantum cascade laser, achieved by implementing a graphene loaded split ring resonator array into an external cavity feedback set-up. Amplitude modulation depths as high
Autor:
Jeffrey E. Melzer, R. Wallis, Riccardo Degl'Innocenti, Oleg Mitrofanov, Carlos M. Bledt, James A. Harrington, D. S. Jessop, David A. Ritchie, Harvey E. Beere, Yuan Ren
Publikováno v:
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
We demonstrate a THz optical delivery system capable of supplying a low divergence HE 11 Gaussian beam at a distance of >500mm from the facet of a THz quantum cascade laser. This is achieved by optimising the optical coupling to an external hollow fl
Autor:
J. A. Zeitler, Stephen J. Kindness, David A. Ritchie, Christopher X. Ren, Hungyen Lin, Stephan Hofmann, Philipp Braeuninger-Weimer, Long Xiao, Riccardo Degl'Innocenti, D. S. Jessop, Harvey E. Beere, Yuan Ren
The terahertz (THz) region of the electromagnetic spectrum holds great potential in many fields of study, from spectroscopy to biomedical imaging, remote gas sensing, and high speed communication. To fully exploit this potential, fast optoelectronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d36b89ce93cb42a9c1ea2894f0350366
https://doi.org/10.1063/1.4947596
https://doi.org/10.1063/1.4947596
Autor:
Harvey E. Beere, Stephen J. Kindness, D. S. Jessop, Long Xiao, Yuan Ren, Christian Sol, J. Axel Zeitler, Varun S. Kamboj, J. Griffiths, Stephan Hofmann, David A. Ritchie, Riccardo Degl'Innocenti, Hungyen Lin, Philipp Braeuninger-Weimer
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX.
The growing interest in terahertz (THz) technologies in recent years has seen a wide range of demonstrated applications, spanning from security screening, non-destructive testing, gas sensing, to biomedical imaging and communication. Communication wi
Autor:
Harvey E. Beere, Stephan Hofmann, Juraj Sibik, David A. Ritchie, Angadjit Singh, Varun S. Kamboj, J. Axel Zeitler, Yuan Ren, Philipp Braeuninger-Weimer, Piran R. Kidambi, D. S. Jessop
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX.
We report the characterization of centimeter sized graphene field-effect transistors with ionic gating which enables active frequency and amplitude modulation of terahertz (THz) radiation. Chemical vapour deposited graphene with different grain sizes