Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Timm Rohwer"'
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Currently, it is difficult to reach high momenta with narrow energy resolution via laser-based angle-resolved photoemission spectroscopy (ARPES). Here, Sie et al. develop a time-resolved XUV based ARPES setup which can access the first Brillouin zone
Externí odkaz:
https://doaj.org/article/c604706736b24396afae0b9d3aa58b5e
Autor:
Dongfang Zhang, Tobias Kroh, Felix Ritzkowsky, Timm Rohwer, Moein Fakhari, Huseyin Cankaya, Anne-Laure Calendron, Nicholas H. Matlis, Franz X. Kärtner
Publikováno v:
Ultrafast Science, Vol 2021 (2021)
Terahertz- (THz-) based electron manipulation has recently been shown to hold tremendous promise as a technology for manipulating and driving the next generation of compact ultrafast electron sources. Here, we demonstrate an ultrafast electron diffra
Externí odkaz:
https://doaj.org/article/3dc943c7496c46ec9f2bbcc827b2da39
Publikováno v:
New Journal of Physics, Vol 17, Iss 1, p 013051 (2015)
We propose an all-optical, three-dimensional electron pulse compression scheme in which Hermite–Gaussian optical modes are used to fashion a three-dimensional optical trap in the electron pulse’s rest frame. We show that the correct choices of op
Externí odkaz:
https://doaj.org/article/1a405fb8c4f14a4d9061e990acf1c8d1
Autor:
Tobias, Kroh, Timm, Rohwer, Dongfang, Zhang, Umit, Demirbas, Huseyin, Cankaya, Michael, Hemmer, Yi, Hua, Luis E, Zapata, Mikhail, Pergament, Franz X, Kärtner, Nicholas H, Matlis
Publikováno v:
Optics express. 30(14)
Despite the popularity and ubiquity of the tilted-pulse-front technique for single-cycle terahertz (THz) pulse generation, there is a deficit of experimental studies comprehensively mapping out the dependence of the performance on key setup parameter
Autor:
Tobias Kroh, Timm Rohwer, Umit Demirbas, Huseyin Çankaya, Michael Hemmer, Yi Hua, Mikhail Pergament, Nicholas H. Matlis, Franz X. Kärtner
Publikováno v:
Piscataway, NJ : Optica Publishing Group Washington, D.C. 2 pp. (2022). doi:10.1364/CLEO_SI.2022.STh2N.5
Conference on Lasers and Electro-Optics : Proceedings-Optica Publishing Group
Conference on Lasers and Electro-Optics : Proceedings-Optica Publishing GroupConference on Lasers and Electro-Optics, CLEO, San Jose, California, USA, 2022-05-15-2022-05-20
Conference on Lasers and Electro-Optics : Proceedings-Optica Publishing Group
Conference on Lasers and Electro-Optics : Proceedings-Optica Publishing GroupConference on Lasers and Electro-Optics, CLEO, San Jose, California, USA, 2022-05-15-2022-05-20
We map out the impact of the interaction lengths on the efficiency and terahertz spatial profile in tilted-pulse-front setups via systematically scanning the 5D-parameter space spanned by fluence, pulse-front tilt, crystal-position, and beam size.
Autor:
Moein Fakhari, Felix Ritzkowsky, Tobias Kroh, Franz X. Kärtner, Nicholas H. Matlis, Timm Rohwer, Anne-Laure Calendron, Dongfang Zhang, Huseyin Cankaya
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Ultrafast electron sources have emerged as a powerful tool for revealing structural dynamics in molecules and materials at the atomic scale [1] . Over the past years, there has been great interest in achieving sub-100 femtosecond (fs) time resolution
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Nature Communications
Nature Communications
High harmonic generation of ultrafast laser pulses can be used to perform angle-resolved photoemission spectroscopy (ARPES) to map the electronic band structure of materials with femtosecond time resolution. However, currently it is difficult to reac
Autor:
Nicholas H. Matlis, Franz X. Kärtner, Dongfang Zhang, Moein Fakhari, Timm Rohwer, Tobias Kroh, Felix Ritzkowsky, Anne-Laure Calendron, Huseyin Cankaya
Publikováno v:
Conference on Lasers and Electro-Optics.
Terahertz (THz)-based electron manipulation has recently been shown to hold tremendous promise as a technology for manipulating and driving the next-generation of compact ultrafast electron sources. Here, we demonstrate an ultrafast electron diffract
Autor:
Umit Demirbas, Mikhail Pergament, Hannes Dinter, Timm Rohwer, Max Kellermeier, Ralph Aßmann, Michael Hemmer, Moein Fakhari, Tobias Kroh, Huseyin Cankaya, Franz X. Kärtner, Nicholas H. Matlis
Publikováno v:
[Washington, D.C., USA] : Optica Publishing Group Washington, D.C., OSA technical digest 2 pp. (2021). doi:10.1364/CLEO_SI.2021.SW2K.3
Conference on Lasers and Electro-Optics : Proceedings
Conference on Lasers and Electro-Optics : ProceedingsCLEO: Science and Innovations 2021, CLEO 2021, San Jose, California, 2021-05-09-2021-05-14
Conference on Lasers and Electro-Optics : Proceedings
Conference on Lasers and Electro-Optics : ProceedingsCLEO: Science and Innovations 2021, CLEO 2021, San Jose, California, 2021-05-09-2021-05-14
A compact terahertz (THz) powered photogun reaching electron energies up to ~ 3keV is presented. First experiments testing the performance of the device as well as challenges in future development are summarized and discussed.
Autor:
Anne-Laure Calendron, Moein Fakhari, Felix Ritzkowsky, Dongfang Zhang, Nicholas H. Matlis, Tobias Kroh, Timm Rohwer, Franz X. Kärtner, Huseyin Cankaya
Publikováno v:
Ultrafast Science, Vol 2021 (2021)
Ultrafast science 2021, 9848526 (2021). doi:10.34133/2021/9848526
Ultrafast science 2021, 9848526 (2021). doi:10.34133/2021/9848526
Ultrafast science 2021, 9848526 (2021). doi:10.34133/2021/9848526
Terahertz- (THz-) based electron manipulation has recently been shown to hold tremendous promise as a technology formanipulating and driving the next generation of compact ultrafa
Terahertz- (THz-) based electron manipulation has recently been shown to hold tremendous promise as a technology formanipulating and driving the next generation of compact ultrafa