Zobrazeno 1 - 10
of 150
pro vyhledávání: '"Ioachim Pupeza"'
Autor:
Syed A. Hussain, Christina Hofer, Maximilian Högner, Wolfgang Schweinberger, Theresa Buberl, Daniel Bausch, Marinus Huber, Ferenc Krausz, Ioachim Pupeza
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-7 (2024)
Abstract The generation of laser pulses with controlled optical waveforms, and their measurement, lie at the heart of both time-domain and frequency-domain precision metrology. Here, we obtain mid-infrared waves via intra-pulse difference-frequency g
Externí odkaz:
https://doaj.org/article/927001c88d5643c9927700f63b264303
Autor:
Martin T. Peschel, Maximilian Högner, Theresa Buberl, Daniel Keefer, Regina de Vivie-Riedle, Ioachim Pupeza
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Energy transfer between the electromagnetic field and atoms or molecules is fundamentally interesting. Here the authors demonstrate stepwise energy transfer between broadband mid-infrared optical pulses and vibrating methylsulfonylmethane molecules i
Externí odkaz:
https://doaj.org/article/b611b482a6b945039066636758f9691d
Autor:
Tobias Saule, Maximilian Högner, Nikolai Lilienfein, Oliver de Vries, Marco Plötner, Vladislav S. Yakovlev, Nicholas Karpowicz, Jens Limpert, Ioachim Pupeza
Publikováno v:
APL Photonics, Vol 3, Iss 10, Pp 101301-101301-8 (2018)
Modern ultrafast laser architectures enable high-order harmonic generation (HHG) in gases at (multi-) MHz repetition rates, where each atom interacts with multiple pulses before leaving the HHG volume. This raises the question of cumulative plasma ef
Externí odkaz:
https://doaj.org/article/26d11714eb2d4c1680d00704c070d1c0
Autor:
Philipp Sulzer, Maximilian Högner, Ann-Kathrin Raab, Lukas Fürst, Ernst Fill, Daniel Gerz, Christina Hofer, Liudmila Voronina, Ioachim Pupeza
Publikováno v:
Nature Photonics
Femtosecond enhancement cavities1 are key to applications including high-sensitivity linear2–4 and nonlinear5,6 gas spectroscopy, as well as efficient nonlinear optical frequency conversion7–10. Yet, to date, the broadest simultaneously enhanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0599435f124ca4e8bb864dc5f0bf9744
https://hdl.handle.net/21.11116/0000-000A-EE49-921.11116/0000-000A-EE47-B
https://hdl.handle.net/21.11116/0000-000A-EE49-921.11116/0000-000A-EE47-B
Publikováno v:
Nature Photonics. 15:175-186
Femtosecond mode-locked lasers producing visible/infrared frequency combs have steadily advanced our understanding of fundamental processes in nature. For example, optical clocks employ frequency-comb techniques for the most precise measurements of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6af6e8291c02e70aa901332e10c838b3
https://doi.org/10.1038/s41566-020-00741-3
https://doi.org/10.1038/s41566-020-00741-3
Autor:
Ioachim Pupeza, Christina Hofer, Daniel Gerz, Lukas Fürst, Maximilian Högner, Thomas Butler, Martin Gebhardt, Tobias Heuermann, Christian Gaida, Kiran Maiti, Marinus Huber, Ernst Fill, Jens Limpert, Ferenc Krausz
Electric-field oscillations are now experimentally accessible in the THz-to-PHz frequency range1–11. Their measurement delivers the most comprehensive information content attainable by optical spectroscopy – if performed with high sensitivity. Ye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df613515936b3d9b285b4ea86afba948
https://doi.org/10.21203/rs.3.rs-1622493/v1
https://doi.org/10.21203/rs.3.rs-1622493/v1
Autor:
Ioachim Pupeza, Christina Hofer, Syed Ali Hussain, Marinus Huber, Wolfgang Schweinberger, Michael K. Trubetskov
Publikováno v:
Analytical Chemistry
The strong absorption of liquid water in the infrared (IR) molecular fingerprint region constitutes a challenge for applications of vibrational spectroscopy in chemistry, biology, and medicine. While high-power IR laser sources enable the penetration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6faf5dfa37ef6e24da9839f4abb38a7
https://doi.org/10.1021/acs.analchem.9b05744
https://doi.org/10.1021/acs.analchem.9b05744
Autor:
Michael K. Trubetskov, Ferenc Krausz, Ioachim Pupeza, Markus Poetzlberger, Vladimir Pervak, Kilian Fritsch, Alexander Apolonski, Christina Hofer, Kosmas V. Kepesidis, Lenard Vamos, Oleg Pronin, Tatiana Amotchkina, Marinus Huber, Syed Ali Hussain, Wolfgang Schweinberger, Nicholas Karpowicz, Abdallah M. Azzeer, Mihaela Žigman, Frank Fleischmann, Ernst Fill
Publikováno v:
Nature. 577:52-59
The proper functioning of living systems and physiological phenotypes depends on molecular composition. Yet simultaneous quantitative detection of a wide variety of molecules remains a challenge1–8. Here we show how broadband optical coherence open
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faa20b66ee41981d24c1c0232e2082c0
https://doi.org/10.1038/s41586-019-1850-7
https://doi.org/10.1038/s41586-019-1850-7
Autor:
Tim Vogel, Alan Omar, Samira Mansourzadeh, Frank Wulf, Natalia Martín Sabanés, Melanie Müller, Tom Seifert, Alexander Weigel, Gerhard Jakob, Mathias Kläui, Ioachim Pupeza, Tobias Kampfrath, Clara J. Saraceno
Publikováno v:
Conference on Lasers and Electro-Optics.
We present THz generation in a back-cooled spintronic THz emitter in reflection geometry, excited with a high-average power Yb-laser providing up to 18.5 W at 400 kHz repetition rate. This allows us to increase the THz power.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aba7d3e5e16197f0fed3d08e845f8e10
https://doi.org/10.1364/cleo_si.2022.ss2c.7
https://doi.org/10.1364/cleo_si.2022.ss2c.7
Autor:
Tatiana Amochkina, Daniel Hahner, Michael Trubetskov, Hadil Kassab, Ioachim Pupeza, Ferenc Krausz, Vladimir Pervak
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
A novel ultra-broadband beamsplitter operating in the near-infrared range around 1030 nm and in the mid-infrared range 3-12 µm for bio-medical laser applications was designed and produced. Thin-film materials were ZnS and YbF3.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d280c907c8bbdd83920f48f97f9ac56
https://doi.org/10.1364/oic.2022.ta.11
https://doi.org/10.1364/oic.2022.ta.11