Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Phillip D. Keathley"'
Autor:
Yudong Yang, Roland E. Mainz, Giulio Maria Rossi, Fabian Scheiba, Miguel A. Silva-Toledo, Phillip D. Keathley, Giovanni Cirmi, Franz X. Kärtner
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Attosecond pulse generation needs improvements both in terms of tunability and photon flux for next level attosecond experiments. Here the authors show how to control the HHG emission and its spectral-temporal characteristics by driving the IAP gener
Externí odkaz:
https://doaj.org/article/278e63619fe9482abf0a5111895a218a
Autor:
Yujia Yang, Marco Turchetti, Praful Vasireddy, William P. Putnam, Oliver Karnbach, Alberto Nardi, Franz X. Kärtner, Karl K. Berggren, Phillip D. Keathley
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
On-chip optical-field emission devices may be useful for fast electronics and signal processing. Here the authors show a compact on-chip light phase detector capable of monitoring photocurrents oscillating at optical frequencies using electrically co
Externí odkaz:
https://doaj.org/article/fc1a650f00334f95a67b44ac2a762c79
Autor:
Charles Roques-Carmes, Steven E. Kooi, Yi Yang, Aviram Massuda, Phillip D. Keathley, Aun Zaidi, Yujia Yang, John D. Joannopoulos, Karl K. Berggren, Ido Kaminer, Marin Soljačić
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Extracting light from silicon is a longstanding challenge. Here, the authors report an experimental demonstration of free-electron-driven light emission from silicon nanogratings and investigates the feasibility of a compact, all-silicon tunable ligh
Externí odkaz:
https://doaj.org/article/208cca50d5bf41bf829b6484f3c582a3
Autor:
Sergio Carbajo, Emilio A. Nanni, Liang Jie Wong, Gustavo Moriena, Phillip D. Keathley, Guillaume Laurent, R. J. Dwayne Miller, Franz X. Kärtner
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 2, p 021303 (2016)
Compact laser-driven accelerators are pursued heavily worldwide because they make novel methods and tools invented at national laboratories widely accessible in science, health, security, and technology [V. Malka et al., Principles and applications o
Externí odkaz:
https://doaj.org/article/8b9dd1837bbc46e1991e12fbb77a7f00
Autor:
Charles Roques-Carmes, Steven E. Kooi, Yi Yang, Nicholas Rivera, Phillip D. Keathley, John D. Joannopoulos, Steven G. Johnson, Ido Kaminer, Karl K. Berggren, Marin Soljačić
Publikováno v:
Applied Physics Reviews. 10:011303
When impinging on optical structures or passing in their vicinity, free electrons can spontaneously emit electromagnetic radiation, a phenomenon generally known as cathodoluminescence. Free-electron radiation comes in many guises: Cherenkov, transiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab627d8e29886a1c60df179e011adbd7
https://doi.org/10.1063/5.0118096
https://doi.org/10.1063/5.0118096
Autor:
Marco Turchetti, Yujia Yang, Mina Bionta, Alberto Nardi, Luca Daniel, Karl K. Berggren, Phillip D. Keathley
Recent advancements in nanofabrication have enabled the creation of vacuum electronic devices with nanoscale free space gaps. These nanoelectronic devices promise the benefits of cold-field emission and transport through free-space, such as high nonl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cd5c167bbc1cb2402c1870e4a938001
http://arxiv.org/abs/2201.04043
http://arxiv.org/abs/2201.04043
Autor:
Dario Cattozzo Mor, Yujia Yang, Felix Ritzkowsky, Franz X. Kartner, Karl K. Berggren, Neetesh Kumar Singh, Phillip D. Keathley
Carrier-envelope phase (CEP) detection of ultrashort optical pulses and low-energy waveform field sampling have recently been demonstrated using direct time-domain methods that exploit optical-field photoemission from plasmonic nanoantennas. These de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::234ef07eaf935205dc518a5b874cf85d
https://bib-pubdb1.desy.de/record/484465
https://bib-pubdb1.desy.de/record/484465
Autor:
Laura Cattaneo, Luca Pedrelli, Roger Y. Bello, Alicia Palacios, Phillip D. Keathley, Fernando Martín, Ursula Keller
Publikováno v:
Physical Review Letters, 128 (6)
Capturing electronic dynamics in real time has been the ultimate goal of attosecond science since its beginning. While for atomic targets the existing measurement techniques have been thoroughly validated, in molecules there are open questions due to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7cf235922e2eb2720b52cbdeea33208
https://pubmed.ncbi.nlm.nih.gov/35213184
https://pubmed.ncbi.nlm.nih.gov/35213184
Publikováno v:
The Review of scientific instruments. 92(7)
In this work, we report the use of commercial gallium nitride (GaN) power electronics to precisely switch complex distributed loads, such as electron lenses and deflectors. This was accomplished by taking advantage of the small form-factor, low-power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cc203764456fff2bce892157b340e23
https://pubmed.ncbi.nlm.nih.gov/34340436
https://pubmed.ncbi.nlm.nih.gov/34340436
Optical-field emission from nanostructured solids such as subwavelength nanoantennas can be leveraged to create sub-femtosecond, petahertz-scale electronics for optical-field detection. One application of particular interest is the detection of an in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e08607c5fc1712481766c2e8debf332
http://arxiv.org/abs/2103.08018
http://arxiv.org/abs/2103.08018