Unusual keynote talk at an international scientific conference
NCCR MUST at Scientifica 2021
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Kick-Off dynaMENT Mentoring for Women in Natural Sciences
Four new scientific highlights
WakeUp! Women in Switzerland in 50 portraits
Scientists are trying to control lightning with a giant laser
Women Leaders Panel Video and Booklet
Photon Science Roadmap
Proof of concept ERC Grant for Ursula Keller
Majed Chergui -
Ruth Signorell -
Farewell and Welcome!
SY-GAIA expedition 
8photonics wins Ypsomed Innovations PrizeResearch publications 2020 L - Z
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Longetti, L., Randulová, M., Ojeda, J., Mewes, L., Miseikis, L., Grilj, J., Sanchez-Gonzalez, A., Witting, T., Siegel, T., Diveki, Z., van Mourik, F., Chapman, R., Cacho, C., Yap, S., Tisch, J.W.G., Springate, E., Marangos, J.P., Slavíček, P., Arrell, C.A., and Chergui, M. (2020). Photoemission from non-polar aromatic molecules in the gas and liquid phase. Phys Chem Chem Phys 22, 3965-3974. (http://dx.doi.org/10.1039/C9CP06799J)
Lu, H., Liu, Y., Ahlawat, P., Mishra, A., Tress, W.R., Eickemeyer, F.T., Yang, Y., Fu, F., Wang, Z., Avalos, C.E., Carlsen, B.I., Agarwalla, A., Zhang, X., Li, X., Zhan, Y., Zakeeruddin, S.M., Emsley, L., Rothlisberger, U., Zheng, L., Hagfeldt, A., and Grätzel, M. (2020). Vapor-assisted deposition of highly efficient, stable black-phase FAPbI<sub>3</sub> perovskite solar cells. Science 370, eabb8985. (http://science.sciencemag.org/content/370/6512/eabb8985.abstract)
Lucchini, M., Sato, S.A., Schlaepfer, F., Yabana, K., Gallmann, L., Rubio, A., and Keller, U. (2020). Attosecond timing of the dynamical Franz–Keldysh effect. J Phys Photon 2, 025001. (http://dx.doi.org/10.1088/2515-7647/ab70cb)
Madan, I., Vanacore, G.M., Gargiulo, S., LaGrange, T., and Carbone, F. (2020). The quantum future of microscopy: Wave function engineering of electrons, ions, and nuclei. Appl Phys Lett 116, 230502. (https://doi.org/10.1063/1.5143008)
Mewes, L., Wang, M., Ingle, R.A., Börjesson, K., and Chergui, M. (2020). Energy relaxation pathways between light-matter states revealed by coherent two-dimensional spectroscopy. Commun Phys 3, 157. (https://doi.org/10.1038/s42005-020-00424-z)
Palmieri, T., Baldini, E., Steinhoff, A., Akrap, A., Kollár, M., Horváth, E., Forró, L., Jahnke, F., and Chergui, M. (2020). Mahan excitons in room-temperature methylammonium lead bromide perovskites. Nature Commun 11, 850. (https://doi.org/10.1038/s41467-020-14683-5)
Parchenko, S., Paris, E., McNally, D., Abreu, E., Dantz, M., Bothschafter, E.M., Reid, A.H., Schlotter, W.F., Lin, M.-F., Wandel, S.F., Coslovich, G., Zohar, S., Dakovski, G.L., Turner, J.J., Moeller, S., Tseng, Y., Radovic, M., Saathe, C., Agaaker, M., Nordgren, J.E., Johnson, S.L., Schmitt, T., and Staub, U. (2020). Orbital dynamics during an ultrafast insulator to metal transition. Phys Rev Research 2, 023110. (https://link.aps.org/doi/10.1103/PhysRevResearch.2.023110)
Pedrelli, L., Keathley, P.D., Cattaneo, L., Kärtner, F.X., and Keller, U. (2020). Complete phase retrieval of photoelectron wavepackets. arXiv, 2002.12611. (https://arxiv.org/abs/2002.12611)
Perry, C.F., Zhang, P., Nunes, F.B., Jordan, I., von Conta, A., and Wörner, H.J. (2020). Ionization Energy of Liquid Water Revisited. J Phys Chem Lett 11, 1789-1794. (https://doi.org/10.1021/acs.jpclett.9b03391)
Porer, M., Rettig, L., Bothschafter, E.M., Esposito, V., Versteeg, R.B., van Loosdrecht, P.H.M., Savoini, M., Rittmann, J., Kubli, M., Lantz, G., Schumann, O.J., Nugroho, A.A., Braden, M., Ingold, G., Johnson, S.L., Beaud, P., and Staub, U. (2020). Correlations between electronic order and structural distortions and their ultrafast dynamics in the single-layer manganite Pr0.5Ca1.5MnO4. Phys Rev B 101, 075119. (https://doi.org/10.1103/PhysRevB.101.075119)
Prlj, A., Begusic, T., Zhang, Z.T., Fish, G.C., Wehrle, M., Zimmermann, T., Choi, S., Roulet, J., Moser, J.-E., and Vaníček, J. (2020). Semiclassical Approach to Photophysics Beyond Kasha's Rule and Vibronic Spectroscopy Beyond the Condon Approximation. The Case of Azulene. J Chem Theory Comput. (https://doi.org/10.1021/acs.jctc.0c00079)
Pupeikis, J., Chevreuil, P.A., Bigler, N., Gallmann, L., Phillips, C.R., and Keller, U. (2020). Water window soft x-ray source enabled by a 25 W few-cycle 2.2 µm OPCPA at 100 kHz. Optica 7, 168-171. (http://www.osapublishing.org/optica/abstract.cfm?URI=optica-7-2-168)
Rossi, T.C., Grolimund, D., Cannelli, O., Mancini, G.F., Bacellar, C., Kinschel, D., Rouxel, J.R., Ohannessian, N., Pergolesi, D., and Chergui, M. (2020). X-ray absorption linear dichroism at the Ti K-edge of rutile (001) TiO2 single crystal. J Synchrotron Rad 27, 425-435. (https://doi.org/10.1107/S160057752000051X)
Runeson, J.E., and Richardson, J.O. (2020). Generalized spin mapping for quantum-classical dynamics. J Chem Phys 152, 084110. (https://doi.org/10.1063/1.5143412)
Saller, M.A.C., Kelly, A., and Richardson, J.O. (2020). Improved population operators for multi-state nonadiabatic dynamics with the mixed quantum-classical mapping approach. Faraday Disc 221, 150-167. (https://doi.org/10.1039/C9FD00050J)
San Vicente Veliz, J.C., Koner, D., Schwilk, M., Bemish, R.J., and Meuwly, M. (2020). The N(4S) + O2(X3Σ−g) ↔ O(3P) + NO(X2Π) reaction: thermal and vibrational relaxation rates for the 2A′, 4A′ and 2A′′ states. Phys Chem Chem Phys 22, 3927-3939. (http://dx.doi.org/10.1039/C9CP06085E)
Schild, A., Peper, M., Perry, C., Rattenbacher, D., and Wörner, H.J. (2020). Alternative Approach for the Determination of Mean Free Paths of Electron Scattering in Liquid Water Based on Experimental Data. J Phys Chem Lett 11, 1128-1134. (https://doi.org/10.1021/acs.jpclett.9b02910)
Shi, L., Johnson, S.L., and Reiche, S. (2020). Compact and powerful THz source investigation on laser plasma wakefield injector and dielectric lined structure. Phys Rev Accel & Beams 23, 014071. (https://doi.org/10.1103/PhysRevAccelBeams.23.014701)
Signorell, R. (2020a). Can Current Experimental Data Exclude Non-Gaussian Genuine Band Shapes in Ultraviolet Photoelectron Spectra of the Hydrated Electron? J Phys Chem Lett 11, 1516-1519. (https://doi.org/10.1021/acs.jpclett.0c00238)
Signorell, R. (2020b). Electron Scattering in Liquid Water and Amorphous Ice: A Striking Resemblance. Phys Rev Lett 124, 205501. (https://link.aps.org/doi/10.1103/PhysRevLett.124.205501)
Skopintsev, P., Ehrenberg, D., Weinert, T., James, D., Kar, R.K., Johnson, P.J.M., Ozerov, D., Furrer, A., Martiel, I., Dworkowski, F., Nass, K., Knopp, G., Cirelli, C., Arrell, C., Gashi, D., Mous, S., Wranik, M., Gruhl, T., Kekilli, D., Brünle, S., Deupi, X., Schertler, G.F.X., Benoit, R.M., Panneels, V., Nogly, P., Schapiro, I., Milne, C., Heberle, J., and Standfuss, J. (2020). Femtosecond-to-millisecond structural changes in a light-driven sodium pump. Nature. (https://doi.org/10.1038/s41586-020-2307-8)
Smith, A.D., Balčiu̅nas, T., Chang, Y.-P., Schmidt, C., Zinchenko, K., Nunes, F.B., Rossi, E., Svoboda, V., Yin, Z., Wolf, J.-P., and Wörner, H.J. (2020). Femtosecond Soft-X-ray Absorption Spectroscopy of Liquids with a Water-Window High-Harmonic Source. J Phys Chem Lett 11, 1981-1988. (https://doi.org/10.1021/acs.jpclett.9b03559)
Smolentsev, G., Milne, C.J., Guda, A., Haldrup, K., Szlachetko, J., Azzaroli, N., Cirelli, C., Knopp, G., Bohinc, R., Menzi, S., Pamfilidis, G., Gashi, D., Beck, M., Mozzanica, A., James, D., Bacellar, C., Mancini, G.F., Tereshchenko, A., Shapovalov, V., Kwiatek, W.M., Czapla-Masztafiak, J., Cannizzo, A., Gazzetto, M., Sander, M., Levantino, M., Kabanova, V., Rychagova, E., Ketkov, S., Olaru, M., Beckmann, J., and Vogt, M. (2020). Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays. Nature Communications 11, 2131. (https://doi.org/10.1038/s41467-020-15998-z)
Spangenberg, D.M., Rohwer, E., Brugmann, M.H., and Feurer, T. (2020). Extending time-domain ptychography to generalized phase-only transfer functions. Opt Lett 45, 300-303. (https://doi.org/10.1364/OL.45.000300)
Svoboda, V., Michiels, R., LaForge, A.C., Med, J., Stienkemeier, F., Slavicek, P., and Wörner, H.J. (2020). Real-time observation of water radiolysis and hydrated electron formation induced by extreme-ultraviolet pulses. Sci Adv 6. (https://advances.sciencemag.org/content/6/3/eaaz0385)
Tzschaschel, C., Satoh, T., and Fiebig, M. (2020). Efficient spin excitation via ultrafast damping-like torques in antiferromagnets. Nature Commun 11, 6142. (https://doi.org/10.1038/s41467-020-19749-y)
Vale, B.R.C., Socie, E., Burgos-Caminal, A., Bettini, J., Schiavon, M.A., and Moser, J.E. (2020). Exciton, Biexciton, and Hot Exciton Dynamics in CsPbBr3 Colloidal Nanoplatelets. J Phys Chem Lett 11, 387-394. (https://doi.org/10.1021/acs.jpclett.9b03282)
Zhong, Y., Causa, M., Moore, G.J., Krauspe, P., Xiao, B., Günther, F., Kublitski, J., Shivhare, R., Benduhn, J., BarOr, E., Mukherjee, S., Yallum, K.M., Réhault, J., Mannsfeld, S.C.B., Neher, D., Richter, L.J., DeLongchamp, D.M., Ortmann, F., Vandewal, K., Zhou, E., and Banerji, N. (2020). Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers. Nature Commun 11, 833. (https://doi.org/10.1038/s41467-020-14549-w)
Longetti, L., Randulová, M., Ojeda, J., Mewes, L., Miseikis, L., Grilj, J., Sanchez-Gonzalez, A., Witting, T., Siegel, T., Diveki, Z., van Mourik, F., Chapman, R., Cacho, C., Yap, S., Tisch, J.W.G., Springate, E., Marangos, J.P., Slavíček, P., Arrell, C.A., and Chergui, M. (2020). Photoemission from non-polar aromatic molecules in the gas and liquid phase. Phys Chem Chem Phys 22, 3965-3974. (http://dx.doi.org/10.1039/C9CP06799J)
Lu, H., Liu, Y., Ahlawat, P., Mishra, A., Tress, W.R., Eickemeyer, F.T., Yang, Y., Fu, F., Wang, Z., Avalos, C.E., Carlsen, B.I., Agarwalla, A., Zhang, X., Li, X., Zhan, Y., Zakeeruddin, S.M., Emsley, L., Rothlisberger, U., Zheng, L., Hagfeldt, A., and Grätzel, M. (2020). Vapor-assisted deposition of highly efficient, stable black-phase FAPbI<sub>3</sub> perovskite solar cells. Science 370, eabb8985. (http://science.sciencemag.org/content/370/6512/eabb8985.abstract)
Lucchini, M., Sato, S.A., Schlaepfer, F., Yabana, K., Gallmann, L., Rubio, A., and Keller, U. (2020). Attosecond timing of the dynamical Franz–Keldysh effect. J Phys Photon 2, 025001. (http://dx.doi.org/10.1088/2515-7647/ab70cb)
Madan, I., Vanacore, G.M., Gargiulo, S., LaGrange, T., and Carbone, F. (2020). The quantum future of microscopy: Wave function engineering of electrons, ions, and nuclei. Appl Phys Lett 116, 230502. (https://doi.org/10.1063/1.5143008)
Mewes, L., Wang, M., Ingle, R.A., Börjesson, K., and Chergui, M. (2020). Energy relaxation pathways between light-matter states revealed by coherent two-dimensional spectroscopy. Commun Phys 3, 157. (https://doi.org/10.1038/s42005-020-00424-z)
Palmieri, T., Baldini, E., Steinhoff, A., Akrap, A., Kollár, M., Horváth, E., Forró, L., Jahnke, F., and Chergui, M. (2020). Mahan excitons in room-temperature methylammonium lead bromide perovskites. Nature Commun 11, 850. (https://doi.org/10.1038/s41467-020-14683-5)
Parchenko, S., Paris, E., McNally, D., Abreu, E., Dantz, M., Bothschafter, E.M., Reid, A.H., Schlotter, W.F., Lin, M.-F., Wandel, S.F., Coslovich, G., Zohar, S., Dakovski, G.L., Turner, J.J., Moeller, S., Tseng, Y., Radovic, M., Saathe, C., Agaaker, M., Nordgren, J.E., Johnson, S.L., Schmitt, T., and Staub, U. (2020). Orbital dynamics during an ultrafast insulator to metal transition. Phys Rev Research 2, 023110. (https://link.aps.org/doi/10.1103/PhysRevResearch.2.023110)
Pedrelli, L., Keathley, P.D., Cattaneo, L., Kärtner, F.X., and Keller, U. (2020). Complete phase retrieval of photoelectron wavepackets. arXiv, 2002.12611. (https://arxiv.org/abs/2002.12611)
Perry, C.F., Zhang, P., Nunes, F.B., Jordan, I., von Conta, A., and Wörner, H.J. (2020). Ionization Energy of Liquid Water Revisited. J Phys Chem Lett 11, 1789-1794. (https://doi.org/10.1021/acs.jpclett.9b03391)
Porer, M., Rettig, L., Bothschafter, E.M., Esposito, V., Versteeg, R.B., van Loosdrecht, P.H.M., Savoini, M., Rittmann, J., Kubli, M., Lantz, G., Schumann, O.J., Nugroho, A.A., Braden, M., Ingold, G., Johnson, S.L., Beaud, P., and Staub, U. (2020). Correlations between electronic order and structural distortions and their ultrafast dynamics in the single-layer manganite Pr0.5Ca1.5MnO4. Phys Rev B 101, 075119. (https://doi.org/10.1103/PhysRevB.101.075119)
Prlj, A., Begusic, T., Zhang, Z.T., Fish, G.C., Wehrle, M., Zimmermann, T., Choi, S., Roulet, J., Moser, J.-E., and Vaníček, J. (2020). Semiclassical Approach to Photophysics Beyond Kasha's Rule and Vibronic Spectroscopy Beyond the Condon Approximation. The Case of Azulene. J Chem Theory Comput. (https://doi.org/10.1021/acs.jctc.0c00079)
Pupeikis, J., Chevreuil, P.A., Bigler, N., Gallmann, L., Phillips, C.R., and Keller, U. (2020). Water window soft x-ray source enabled by a 25 W few-cycle 2.2 µm OPCPA at 100 kHz. Optica 7, 168-171. (http://www.osapublishing.org/optica/abstract.cfm?URI=optica-7-2-168)
Rossi, T.C., Grolimund, D., Cannelli, O., Mancini, G.F., Bacellar, C., Kinschel, D., Rouxel, J.R., Ohannessian, N., Pergolesi, D., and Chergui, M. (2020). X-ray absorption linear dichroism at the Ti K-edge of rutile (001) TiO2 single crystal. J Synchrotron Rad 27, 425-435. (https://doi.org/10.1107/S160057752000051X)
Runeson, J.E., and Richardson, J.O. (2020). Generalized spin mapping for quantum-classical dynamics. J Chem Phys 152, 084110. (https://doi.org/10.1063/1.5143412)
Saller, M.A.C., Kelly, A., and Richardson, J.O. (2020). Improved population operators for multi-state nonadiabatic dynamics with the mixed quantum-classical mapping approach. Faraday Disc 221, 150-167. (https://doi.org/10.1039/C9FD00050J)
San Vicente Veliz, J.C., Koner, D., Schwilk, M., Bemish, R.J., and Meuwly, M. (2020). The N(4S) + O2(X3Σ−g) ↔ O(3P) + NO(X2Π) reaction: thermal and vibrational relaxation rates for the 2A′, 4A′ and 2A′′ states. Phys Chem Chem Phys 22, 3927-3939. (http://dx.doi.org/10.1039/C9CP06085E)
Schild, A., Peper, M., Perry, C., Rattenbacher, D., and Wörner, H.J. (2020). Alternative Approach for the Determination of Mean Free Paths of Electron Scattering in Liquid Water Based on Experimental Data. J Phys Chem Lett 11, 1128-1134. (https://doi.org/10.1021/acs.jpclett.9b02910)
Shi, L., Johnson, S.L., and Reiche, S. (2020). Compact and powerful THz source investigation on laser plasma wakefield injector and dielectric lined structure. Phys Rev Accel & Beams 23, 014071. (https://doi.org/10.1103/PhysRevAccelBeams.23.014701)
Signorell, R. (2020a). Can Current Experimental Data Exclude Non-Gaussian Genuine Band Shapes in Ultraviolet Photoelectron Spectra of the Hydrated Electron? J Phys Chem Lett 11, 1516-1519. (https://doi.org/10.1021/acs.jpclett.0c00238)
Signorell, R. (2020b). Electron Scattering in Liquid Water and Amorphous Ice: A Striking Resemblance. Phys Rev Lett 124, 205501. (https://link.aps.org/doi/10.1103/PhysRevLett.124.205501)
Skopintsev, P., Ehrenberg, D., Weinert, T., James, D., Kar, R.K., Johnson, P.J.M., Ozerov, D., Furrer, A., Martiel, I., Dworkowski, F., Nass, K., Knopp, G., Cirelli, C., Arrell, C., Gashi, D., Mous, S., Wranik, M., Gruhl, T., Kekilli, D., Brünle, S., Deupi, X., Schertler, G.F.X., Benoit, R.M., Panneels, V., Nogly, P., Schapiro, I., Milne, C., Heberle, J., and Standfuss, J. (2020). Femtosecond-to-millisecond structural changes in a light-driven sodium pump. Nature. (https://doi.org/10.1038/s41586-020-2307-8)
Smith, A.D., Balčiu̅nas, T., Chang, Y.-P., Schmidt, C., Zinchenko, K., Nunes, F.B., Rossi, E., Svoboda, V., Yin, Z., Wolf, J.-P., and Wörner, H.J. (2020). Femtosecond Soft-X-ray Absorption Spectroscopy of Liquids with a Water-Window High-Harmonic Source. J Phys Chem Lett 11, 1981-1988. (https://doi.org/10.1021/acs.jpclett.9b03559)
Smolentsev, G., Milne, C.J., Guda, A., Haldrup, K., Szlachetko, J., Azzaroli, N., Cirelli, C., Knopp, G., Bohinc, R., Menzi, S., Pamfilidis, G., Gashi, D., Beck, M., Mozzanica, A., James, D., Bacellar, C., Mancini, G.F., Tereshchenko, A., Shapovalov, V., Kwiatek, W.M., Czapla-Masztafiak, J., Cannizzo, A., Gazzetto, M., Sander, M., Levantino, M., Kabanova, V., Rychagova, E., Ketkov, S., Olaru, M., Beckmann, J., and Vogt, M. (2020). Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays. Nature Communications 11, 2131. (https://doi.org/10.1038/s41467-020-15998-z)
Spangenberg, D.M., Rohwer, E., Brugmann, M.H., and Feurer, T. (2020). Extending time-domain ptychography to generalized phase-only transfer functions. Opt Lett 45, 300-303. (https://doi.org/10.1364/OL.45.000300)
Svoboda, V., Michiels, R., LaForge, A.C., Med, J., Stienkemeier, F., Slavicek, P., and Wörner, H.J. (2020). Real-time observation of water radiolysis and hydrated electron formation induced by extreme-ultraviolet pulses. Sci Adv 6. (https://advances.sciencemag.org/content/6/3/eaaz0385)
Tzschaschel, C., Satoh, T., and Fiebig, M. (2020). Efficient spin excitation via ultrafast damping-like torques in antiferromagnets. Nature Commun 11, 6142. (https://doi.org/10.1038/s41467-020-19749-y)
Vale, B.R.C., Socie, E., Burgos-Caminal, A., Bettini, J., Schiavon, M.A., and Moser, J.E. (2020). Exciton, Biexciton, and Hot Exciton Dynamics in CsPbBr3 Colloidal Nanoplatelets. J Phys Chem Lett 11, 387-394. (https://doi.org/10.1021/acs.jpclett.9b03282)
Zhong, Y., Causa, M., Moore, G.J., Krauspe, P., Xiao, B., Günther, F., Kublitski, J., Shivhare, R., Benduhn, J., BarOr, E., Mukherjee, S., Yallum, K.M., Réhault, J., Mannsfeld, S.C.B., Neher, D., Richter, L.J., DeLongchamp, D.M., Ortmann, F., Vandewal, K., Zhou, E., and Banerji, N. (2020). Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers. Nature Commun 11, 833. (https://doi.org/10.1038/s41467-020-14549-w)
