{"issue":"11","extern":"1","date_published":"2016-11-01T00:00:00Z","publication_status":"published","abstract":[{"text":"Monochromatization of high-harmonic sources has opened fascinating perspectives regarding time-resolved photoemission from all phases of matter. Such studies have invariably involved the use of spectral filters or spectrally dispersive optical components that are inherently lossy and technically complex. Here we present a new technique for the spectral selection of near-threshold harmonics and their spatial separation from the driving beams without any optical elements. We discover the existence of a narrow phase-matching gate resulting from the combination of the non-collinear generation geometry in an extended medium, atomic resonances and absorption. Our technique offers a filter contrast of up to 104 for the selected harmonics against the adjacent ones and offers multiple temporally synchronized beamlets in a single unified scheme. We demonstrate the selective generation of 133, 80 or 56 nm femtosecond pulses from a 400-nm driver, which is specific to the target gas. These results open new pathways towards phase-sensitive multi-pulse spectroscopy in the vacuum- and extreme-ultraviolet, and frequency-selective output coupling from enhancement cavities.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1038/lsa.2016.170"}],"day":"01","type":"journal_article","pmid":1,"date_updated":"2023-08-22T08:46:05Z","month":"11","article_processing_charge":"No","status":"public","quality_controlled":"1","title":"In situ frequency gating and beam splitting of vacuum- and extreme-ultraviolet pulses","date_created":"2023-08-10T06:37:25Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","oa":1,"scopus_import":"1","publisher":"Springer Nature","citation":{"mla":"Rajeev, Rajendran, et al. “In Situ Frequency Gating and Beam Splitting of Vacuum- and Extreme-Ultraviolet Pulses.” Light: Science & Applications, vol. 5, no. 11, Springer Nature, 2016, pp. e16170–e16170, doi:10.1038/lsa.2016.170.","ieee":"R. Rajeev et al., “In situ frequency gating and beam splitting of vacuum- and extreme-ultraviolet pulses,” Light: Science & Applications, vol. 5, no. 11. Springer Nature, pp. e16170–e16170, 2016.","ama":"Rajeev R, Hellwagner J, Schumacher A, et al. In situ frequency gating and beam splitting of vacuum- and extreme-ultraviolet pulses. Light: Science & Applications. 2016;5(11):e16170-e16170. doi:10.1038/lsa.2016.170","apa":"Rajeev, R., Hellwagner, J., Schumacher, A., Jordan, I., Huppert, M., Tehlar, A., … Wörner, H. J. (2016). In situ frequency gating and beam splitting of vacuum- and extreme-ultraviolet pulses. Light: Science & Applications. Springer Nature. https://doi.org/10.1038/lsa.2016.170","chicago":"Rajeev, Rajendran, Johannes Hellwagner, Anne Schumacher, Inga Jordan, Martin Huppert, Andres Tehlar, Bhargava Ram Niraghatam, et al. “In Situ Frequency Gating and Beam Splitting of Vacuum- and Extreme-Ultraviolet Pulses.” Light: Science & Applications. Springer Nature, 2016. https://doi.org/10.1038/lsa.2016.170.","ista":"Rajeev R, Hellwagner J, Schumacher A, Jordan I, Huppert M, Tehlar A, Niraghatam BR, Baykusheva DR, Lin N, von Conta A, Wörner HJ. 2016. In situ frequency gating and beam splitting of vacuum- and extreme-ultraviolet pulses. Light: Science & Applications. 5(11), e16170–e16170.","short":"R. Rajeev, J. Hellwagner, A. Schumacher, I. Jordan, M. Huppert, A. Tehlar, B.R. Niraghatam, D.R. Baykusheva, N. Lin, A. von Conta, H.J. Wörner, Light: Science & Applications 5 (2016) e16170–e16170."},"article_type":"original","_id":"14012","language":[{"iso":"eng"}],"publication":"Light: Science & Applications","author":[{"last_name":"Rajeev","first_name":"Rajendran","full_name":"Rajeev, Rajendran"},{"first_name":"Johannes","last_name":"Hellwagner","full_name":"Hellwagner, Johannes"},{"full_name":"Schumacher, Anne","last_name":"Schumacher","first_name":"Anne"},{"last_name":"Jordan","first_name":"Inga","full_name":"Jordan, Inga"},{"last_name":"Huppert","first_name":"Martin","full_name":"Huppert, Martin"},{"first_name":"Andres","last_name":"Tehlar","full_name":"Tehlar, Andres"},{"full_name":"Niraghatam, Bhargava Ram","first_name":"Bhargava Ram","last_name":"Niraghatam"},{"first_name":"Denitsa Rangelova","last_name":"Baykusheva","full_name":"Baykusheva, Denitsa Rangelova","id":"71b4d059-2a03-11ee-914d-dfa3beed6530"},{"full_name":"Lin, Nan","first_name":"Nan","last_name":"Lin"},{"first_name":"Aaron","last_name":"von Conta","full_name":"von Conta, Aaron"},{"full_name":"Wörner, Hans Jakob","last_name":"Wörner","first_name":"Hans Jakob"}],"page":"e16170-e16170","doi":"10.1038/lsa.2016.170","publication_identifier":{"eissn":["2047-7538"]},"external_id":{"pmid":["30167130"]},"keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"volume":5,"intvolume":" 5","year":"2016"}