Johannes Niskanen
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johannes.niskanen@utu.fi
+358 29 450 4160
+358 50 577 8622
Vesilinnantie 5
Turku
: 340
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X-ray; spectroscopy; molecule; liquids; statistical simulation; machine learning
X-rays are a unique probe of systems with a wide variation of atomistic structures: liquids and amorphous matter. I investigate the structural information content of these spectra.
- Room Temperature Dehydrogenation of Gaseous Methanol over Polycrystalline Gold Triggered and Traced by Oxygen K-edge X-rays (2025)
- Journal of Physical Chemistry C
Pietzsch, Annette; Niskanen, Johannes; Vaz da Cruz, Vinicius; Eckert, Sebastian; Fondell, Mattis; Jay, Raphael M.; Lu, Xingye; McNally, Daniel; Schmitt, Thorsten; Föhlisch, Alexander
- Structural Sensitivity of N 1s Excitations in N-Methylacetamide Solutions (2025)
- Journal of Physical Chemistry Letters
Eronen, E. A.; Vladyka, A.; Sahle, Ch. J.; Niskanen, J.
- Distinguishing the XUV-induced Coulomb explosion dynamics of iodobenzene using covariance analysis (2024)
- Journal of Physics B: Atomic, Molecular and Optical Physics
Walmsley, Tiffany; Allum, Felix; Harries, James R; Kumagai, Yoshiaki; Lim, Suzanne; McManus, Joseph; Nagaya, Kiyonobu; Britton, Mathew; Brouard, Mark; Bucksbaum, Philip; Fushitani, Mizuho; Gabalski, Ian; Gejo, Tatsuo; Hockett, Paul; Howard, Andrew J; Iwayama, Hiroshi; Kukk, Edwin; Lam, Chow-shing; Minns, Russell S; Niozu, Akinobu; Nishimuro, Sekito; Niskanen, Johannes; Owada, Shigeki; Razmus, Weronika O; Rolles, Daniel; Somper, James; Ueda, Kiyoshi; Unwin, James; Wada, Shin-ichi; Woodhouse, Joanne L; Forbes, Ruaridh; Burt, Michael; Warne, Emily M
- Encoder–decoder neural networks in interpretation of X-ray spectra (2024)
- Journal of Electron Spectroscopy and Related Phenomena
Passilahti, Jalmari; Vladyka, Anton; Niskanen, Johannes
- Generating interstitial water within the persisting tetrahedral H-bond network explains density increase upon compressing liquid water (2024)
- Proceedings of the National Academy of Sciences of the United States of America
Förster, Mirko; Ukoji, Nnanna; Sahle, Christoph J.; Niskanen, Johannes; Sakrowski, Robin; Surmeier, Göran; Weis, Christopher; Irifune, Tetsuo; Imoto, Sho; Yavas, Hasan; Huotari, Simo; Marx, Dominik; Sternemann, Christian; Tse, John S.
- Implementation of the emulator-based component analysis (2024)
- Journal of Computational Science
Vladyka, Anton; Eronen, Eemeli A.; Niskanen, Johannes
- Information bottleneck in peptide conformation determination by x-ray absorption spectroscopy (2024)
- Journal of Physics Communications
Eronen Eemeli A., Vladyka Anton, Gerbon Florent, Sahle Christoph J., Niskanen Johannes
- Orientational anisotropy due to molecular field splitting in sulfur 2p photoemission from CS2 and SF6 - theoretical treatment and application to photoelectron recoil (2024)
- Physical Chemistry Chemical Physics
Kukk, Edwin; Niskanen, Johannes; Travnikova, Oksana; Berholts, Marta; Kooser, Kuno; Peng, Dawei; Ismail, Iyas; Piancastelli, Maria Novella; Püttner, Ralph; Hergerhahn, Uwe; Simon, Marc
- Structural descriptors and information extraction from X-ray emission spectra: aqueous sulfuric acid (2024)
- Physical Chemistry Chemical Physics
Eronen, E. A.; Vladyka, A.; Sahle, Ch. J.; Niskanen, J.
- Structural Descriptors and Information Extraction from X-ray Spectra of Liquids (2024) Eronen E. A., Vladyka A., Sahle Ch. J., Niskanen J.
- Techno-Economic Analysis of Residential PV-Battery Energy System in Nordics (2024) Proceedings of the 41st European Photovoltaic Solar Energy Conference and Exhibition in Vienna, Austria Karttunen, Lauri; Jouttijärvi, Sami; Niskanen, Johannes; Jasielec, Jerzy J.; Huerta, Hugo; Ranta, Samuli; Miettunen, Kati
- Techno-Economic Analysis of Residential PV-Battery Energy System in Nordics (2024)
- Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition
Proceedings of the 41st European Photovoltaic Solar Energy Conference and Exhibition in Vienna, Austria Karttunen, Lauri; Jouttijärvi, Sami; Niskanen, Johannes; Jasielec, Jerzy J.; Huerta, Hugo; Ranta, Samuli; Miettunen, Kati
- The Role of Momentum Partitioning in Covariance Ion Imaging Analysis (2024)
- Journal of Physical Chemistry A
Walmsley Tiffany, McManus Joseph W., Kumagai Yoshiaki, Nagaya Kiyonobu, Harries James, Iwayama Hiroshi, Ashfold Michael N. R., Britton Mathew, Bucksbaum Philip H., Downes-Ward Briony, Driver Taran, Heathcote David, Hockett Paul, Howard Andrew J., Lee Jason W. L., Liu Yuson, Kukk Edwin, Milesevic Dennis, Minns Russell S., Niozu Akinobu, Niskanen Johannes, Orr-Ewing Andrew J., Owada Shigeki, Robertson Patrick A., Rolles Daniel, Rudenko Artem, Ueda Kiyoshi, Unwin James, Vallance Claire, Brouard Mark, Burt Michael, Allum Felix, Forbes Ruaridh
- Time-Resolved Probing of the Iodobenzene C-Band Using XUV-Induced Electron Transfer Dynamics (2024)
- ACS Physical Chemistry Au
Unwin, James; Razmus, Weronika O.; Allum, Felix; Harries, James R.; Kumagai, Yoshiaki; Nagaya, Kiyonobu; Britton, Mathew; Brouard, Mark; Bucksbaum, Philip; Fushitani, Mizuho; Gabalski, Ian; Gejo, Tatsuo; Hockett, Paul; Howard, Andrew J.; Iwayama, Hiroshi; Kukk, Edwin; Lam, Chow-shing; McManus, Joseph; Minns, Russell S.; Niozu, Akinobu; Nishimuro, Sekito; Niskanen, Johannes; Owada, Shigeki; Pickering, James D.; Rolles, Daniel; Somper, James; Ueda, Kiyoshi; Wada, Shin-ichi; Walmsley, Tiffany; Woodhouse, Joanne L.; Forbes, Ruaridh; Burt, Michael; Warne, Emily M.
- Direct momentum imaging of charge transfer following site-selective ionization (2023) Allum F., Kumagai Y., Nagaya K., Harries J., Iwayama H., Britton M., Bucksbaum P.H., Burt M., Brouard M., Downes-Ward B., Driver T., Heathcote D., Hockett P., Howard A.J., Lee J.W.L., Liu Y., Kukk E., Mcmanus J.W., Milsesevic D., Niozu A., Niskanen J., Orr-Ewing A.J., Owada S., Robertson P.A., Rudenko A., Ueda K., Unwin J., Vallance C., Walmsley T., Minns R.S., Rolles D., Ashfold M.N.R., Forbes R.
- Implementation of the Emulator-based Component Analysis (2023) Vladyka Anton, Eronen Eemeli A., Niskanen Johannes
- Information Bottleneck in Peptide Conformation Determination by X-ray Absorption Spectroscopy (2023) Eronen Eemeli A., Vladyka Anton, Gerbon Florent, Sahle Christoph J., Niskanen Johannes
- Isotope effects in dynamics of water isotopologues induced by core ionization at an x-ray free-electron laser (2023) Guillemin R., Inhester L., Ilchen M., Mazza T., Boll R., Weber Th., Eckart S., Grychtol P., Rennhack N., Marchenko T., Velasquez N., Travnikova O., Ismail I., Niskanen J., Kukk E., Trinter F., Gisselbrecht M., Feifel R., Sansone G., Rolles D., Martins M., Meyer M., Simon M., Santra R., Pfeifer T., Jahnke T., Piancastelli M. N.
- Photodissociation of bromine-substituted nitroimidazole radiosensitizers (2023)
- Physical Chemistry Chemical Physics
Pihlava Lassi, Berholts Marta, Niskanen Johannes, Vladyka Anton, Kooser Kuno, Stråhlman Christian, Eng-Johnsson Per, Kivimäki Antti, Kukk Edwin
- Sensitivity of the Kβ″ X ray Emission Line to Coordination Changes in GeO2 and TiO2 (2023)
- Journal of Physical Chemistry Letters
Spiekermann G., Sahle Ch. J., Niskanen J., Gilmore K., Petitgirard S., Sternemann C., Tse J. S., Murakami M.
