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Items where Author is "Willitsch, Stefan "

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Number of items: 59.

2021

Damjanovic, Tomislav and Willitsch, Stefan and Vanhaecke, Nicolas and Haak, Henrik and Meijer, Gerard and Cromieres, Jean-Paul and Zhang, Dongdong. (2021) A new design for a traveling-wave Zeeman decelerator: I. Theory. New Journal of Physics, 23 (10). p. 105006.

Damjanovic, Tomislav and Willitsch, Stefan and Vanhaecke, Nicolas and Haak, Henrik and Meijer, Gerard and Cromieres, Jean Paul and Zhang, Dongdong. (2021) A new design for a traveling-wave Zeeman decelerator: II. Experiment. New Journal of Physics, 23 (10). p. 105007.

Ploenes, Ludger and Stranak, Patrik and Gao, Hong and Kuepper, J. and Willitsch, Stefan. (2021) A novel crossed-molecular-beam experiment for investigating reactions of state- and conformationally selected strong-field-seeking molecules. Molecular Physics, 119 (17-18). e1965234.

Kilaj, Ardita and Wang, Jia and Stranak, Patrik and Schwilk, Max and Rivero, Uxia and Xu, Lei and von Lilienfeld, O. Anatole and Kupper, Jochen and Willitsch, Stefan. (2021) Conformer-specific polar cycloaddition of dibromobutadiene with trapped propene ions. Nature Communications, 12 (1). p. 6047.

Stranak, Patrik and Ploenes, Ludger and Hofsaess, Simon and Dulitz, Katrin and Stienkemeier, Frank and Willitsch, Stefan. (2021) Development and characterization of high-repetition-rate sources for supersonic beams of fluorine radicals. Review of Scientific Instruments, 92 (10). p. 103203.

Willitsch, Stefan. (2021) Fundamental Research in Chemistry and the SCS: Past, Present, Future. Chimia, 75 (6). pp. 557-558.

Sinhal, Mudit and Meir, Ziv and Willitsch, Stefan. (2021) Non-destructive State Detection and Spectroscopy of Single Molecules. Chimia, 75 (4). pp. 291-295.

Rivero, Uxia and Turan, Haydar Taylan and Meuwly, Markus and Willitsch, Stefan. (2021) Reactive atomistic simulations of Diels-Alder-type reactions: conformational and dynamic effects in the polar cycloaddition of 2,3-dibromobutadiene radical ions with maleic anhydride. Molecular Physics, 119 (1-2). e1825852.

Husmann, Dominik and Bernier, Laurent-Guy and Bertrand, Mathieu and Calonico, Davide and Chaloulos, Konstantinos and Clausen, Gloria and Clivati, Cecilia and Faist, Jerome and Heiri, Ernst and Hollenstein, Urs and Johnson, Anatoly and Mauchle, Fabian and Meir, Ziv and Merkt, Frederic and Mura, Alberto and Scalari, Giacomo and Scheidegger, Simon and Schmutz, Hansjurg and Sinhal, Mudit and Willitsch, Stefan and Morel, Jacques. (2021) SI-traceable frequency dissemination at 1572.06 nm in a stabilized fiber network with ring topology. Optics express, 29 (16). pp. 24592-24605.

2020

Meir, Ziv and Sinhal, Mudit and Safronova, Marianna S. and Willitsch, Stefan. (2020) Combining experiments and relativistic theory for establishing accurate radiative quantities in atoms: The lifetime of the P-2(3/2) state in Ca-40(+). Physical Review A , 101 (1). 012509.

Najafian, Kaveh and Meir, Ziv and Willitsch, Stefan. (2020) From megahertz to terahertz qubits encoded in molecular ions: theoretical analysis of dipole-forbidden spectroscopic transitions in N-2(+). Physical Chemistry Chemical Physics, 22 (40). pp. 23083-23098.

Najafian, Kaveh and Meir, Ziv and Sinhal, Mudit and Willitsch, Stefan. (2020) Identification of molecular quantum states using phase-sensitive forces. Nature Communications, 11 (1). p. 4470.

Kilaj, Ardita and Gao, Hong and Tahchieva, Diana and Ramakrishnan, Raghunathan and Bachmann, Daniel and Gillingham, Dennis and von Lilienfeld, O. Anatole and Kuepper, Jochen and Willitsch, Stefan. (2020) Quantum-chemistry-aided identification, synthesis and experimental validation of model systems for conformationally controlled reaction studies: separation of the conformers of 2,3-dibromobuta-1,3-diene in the gas phase. Physical Chemistry Chemical Physics, 22 (24). pp. 13431-13439.

Sinhal, Mudit and Meir, Ziv and Najafian, Kaveh and Hegi, Gregor and Willitsch, Stefan. (2020) Quantum-nondemolition state detection and spectroscopy of single trapped molecules. Science, 367 (6483). pp. 1213-1218.

Wang, Jia and Kilaj, Ardita and He, Lanhai and Dlugolecki, Karol and Willitsch, Stefan and Kuepper, Jochen. (2020) Spatial Separation of the Conformers of Methyl Vinyl Ketone. The journal of physical chemistry. A, 124 (40). pp. 8341-8345.

2019

Dörfler, Alexander D. and Eberle, Pascal and Koner, Debasish and Tomza, Michał and Meuwly, Markus and Willitsch, Stefan. (2019) Long-range versus short-range effects in cold molecular ion-neutral collisions. Nature Communications, 10 (1). p. 5429.

Haas, Dominik and von Planta, Claudio and Kierspel, Thomas and Zhang, Dongdong and Willitsch, Stefan. (2019) Long-term trapping of Stark-decelerated molecules. Communications physics, 2. p. 101.

Rivero, Uxia and Unke, Oliver T. and Meuwly, Markus and Willitsch, Stefan. (2019) Reactive atomistic simulations of Diels-Alder reactions: The importance of molecular rotations. Journal of Chemical Physics, 151 (10). p. 104301.

Meir, Ziv and Hegi, Gregor and Najafian, Kaveh and Sinhal, Mudit and Willitsch, Stefan. (2019) State-selective coherent motional excitation as a new approach for the manipulation, spectroscopy and state-to-state chemistry of single molecular ions. Faraday Discussions, 217. pp. 561-583.

Rouse, Ian and Willitsch, Stefan. (2019) The energy distribution of an ion in a radiofrequency trap interacting with a nonuniform neutral buffer gas. Molecular Physics, 117 (21). pp. 3120-3131.

2018

Vander Auwera, Jean and Godefroid, Michel and Halonen, Lauri and Huet, Therese and Merkt, Frederic and De Natale, Paolo and Willitsch, Stefan. (2018) 25th Colloquium on High-Resolution Molecular Spectroscopy: special issue dedicated to Michel Herman. Molecular Physics, 116 (23-24). pp. 3447-3462.

Meir, Ziv and Zhang, Dongdong and Willitsch, Stefan. (2018) Cold molecules: techniques and applications. SPG Mitteilungen, 55. pp. 31-33.

Kilaj, Ardita and Gao, Hong and Rösch, Daniel and Rivero, Uxia and Küpper, Jochen and Willitsch, Stefan. (2018) Observation of different reactivities of para and ortho-water towards trapped diazenylium ions. Nature Communications, 9. p. 2096.

Willitsch, Stefan. (2018) Probes of ion-neutral chemical dynamics with cold and controlled molecules. Abstracts of papers of the American Chemical Society, 255. p. 230.

2017

Rivero, Uxia and Meuwly, Markus and Willitsch, Stefan. (2017) A computational study of the Diels-Alder reactions between 2,3-dibromo-1,3-butadiene and maleic anhydride. Chemical Physics Letters, 683. pp. 598-605.

Willitsch, Stefan. (2017) Chemistry with Controlled Ions. In: Advances in Chemical Physics, 162. Hoboken, pp. 307-340.

2016

Eberle, Pascal and Dörfler, Alexander D. and von Planta, Claudio and Ravi, Krishnamurthy and Willitsch, Stefan. (2016) A Dynamic Ion-Atom Hybrid Trap for High-Resolution Cold-Collision Studies. ChemPhysChem, 17 (22). pp. 3769-3775.

Ploenes, Ludger and Haas, Dominik and Zhang, Dongdong and van de Meerakker, Sebastiaan Y. T. and Willitsch, Stefan. (2016) Cold and intense OH radical beam sources. Review of Scientific Instruments, 87 (5). 053305.

Rösch, Daniel and Gao, Hong and Kilaj, Ardita and Willitsch, Stefan. (2016) Design and characterization of a linear quadrupole ion trap for high-resolution Coulomb-crystal time-of-flight mass spectrometry. EPJ Techniques and Instrumentation, 3. p. 5.

Germann, Matthias and Willitsch, Stefan. (2016) Fine- and hyperfine-structure effects in molecular photoionization. I. General theory and direct photoionization. Journal of Chemical Physics, 145 (4). 044314.

Germann, Matthias and Willitsch, Stefan. (2016) Fine- and hyperfine-structure effects in molecular photoionization. II. Resonance-enhanced multiphoton ionization and hyperfine-selective generation of molecular cations. Journal of Chemical Physics, 145 (4). 044315.

Germann, Matthias and Willitsch, Stefan. (2016) Line strengths for fine- and hyperfine-resolved electric-quadrupole rotation-vibration transitions in Hund’s case b molecules. Molecular Physics, 114 (6). pp. 769-773.

2015

Dulieu, Olivier and Willitsch, Stefan. (2015) Cristaux coulombiens: De la technologie quantique à la chimie proche du zéro absolu. Reflets de la physique, 44-45. pp. 91-94.

Germann, Matthias and Tonga, Xin and Willitsch, Stefan. (2015) Forbidden Vibrational Transitions in Cold Molecular Ions: Experimental Observation and Potential Applications. Chimia, 69 (4). pp. 213-216.

Eberle, Pascal and Dörfler, Alexander D. and von Planta, Claudio and Ravi, Krischnamurthy and Haas, Dominik and Zhang, Dong and Meeraker, Sebastiaan Y. T. and Willitsch, Stefan. (2015) Ion-Atom and Ion-Molecule Hybrid Systems: Ion-Neutral Chemistry at Ultralow Energies. Journal of Physics: Conference Series, 635 (1). 012012.

Willitsch, Stefan. (2015) Ion-atom hybrid systems. Proceedings of the International School of Physics "Enrico Fermi", 189. pp. 255-268.

Mokhberi, Athar and Willitsch, Stefan. (2015) Structural and energetic properties of molecular Coulomb crystals in a surface-electrode ion trap. New Journal of Physics, 17 (4). 045008.

Willitsch, Stefan and Rouse, Ian. (2015) Superstatistical velocity distributions of cold trapped ions in molecular dynamics simulations. Physical Review A , 92 (5). 053420.

2014

Rösch, Daniel and Willitsch, Stefan and Chang, Yuan-Pin and Küpper, Jochen. (2014) Chemical reactions of conformationally selected 3-aminophenol molecules in a beam with Coulomb-crystallized Ca+ ions. Journal of Chemical Physics, 140 (12). p. 124202.

Germann, Matthias and Tong, Xin and Willitsch, Stefan. (2014) Observation of electric-dipole-forbidden infrared transitions in cold molecular ions. Nature Physics, 10. pp. 820-824.

Mokhberi, Athar and Willitsch, Stefan. (2014) Sympathetic cooling of molecular ions in a surface-electrode ion trap. Physical Review A, 90 (2). 023402.

2013

Hall, Felix H. J. and Eberle, Pascal and Hegi, Gregor and Raoult, Maurice and Aymar, Mireille and Dulieu, Olivier and Willitsch, Stefan. (2013) Ion-neutral chemistry at ultralow energies: dynamics of reactive collisions between laser-cooled Ca+ ions and Rb atoms in an ion-atom hybrid trap. Molecular Physics, 111. p. 2020.

Hall, Felix H. J. and Aymar, Mireille and Raoult, Maurice and Dulieu, Olivier and Willitsch, Stefan . (2013) Light-assisted cold chemical reactions of barium ions with rubidium atoms. Molecular Physics, 111. pp. 1683-1690.

Willitsch, Stefan. (2013) Molecular physics: Ultracold ménage à trois. Nature Physics, 9. pp. 461-462.

Chang, Yuan-Pin and Długołęcki, Karol and Küpper, Jochen and Rösch, Daniel and Wild, Dieter and Willitsch, Stefan. (2013) Specific Chemical Reactivities of Spatially Separated 3-Aminophenol Conformers with Cold Ca+ Ions. Science, 342 (6154). pp. 98-101.

2012

Hall, Felix H. J. and Willitsch, Stefan. (2012) Millikelvin Reactive Collisions between Sympathetically Cooled Molecular Ions and Laser-Cooled Atoms in an Ion-Atom Hybrid Trap. Physical Review Letters, 109 (23). p. 233202.

2011

Tong, Xin and Wild, Dieter and Willitsch, Stefan. (2011) Collisional and radiative effects in the state-selective preparation of translationally cold molecular ions in ion traps. Physical Review A, 83 (2). 023415.

Willitsch, Stefan. (2011) Experimental Methods in Cation Spectroscopy. In: Handbook of High-Resolution Spectroscopies, 1. Chichester, p. 1691.

Merkt, Frédéric and Hollenstein, Urs and Willitsch, Stefan. (2011) High‐resolution Photoelectron Spectroscopy. In: Handbook of High-resolution Spectroscopies, 1. Chichester, p. 1617.

Hall, Felix H. J. and Aymar, Mireille and Bouloufa-Maafa, Nadia and Dulieu, Olivier and Willitsch, Stefan. (2011) Light-Assisted Ion-Neutral Reactive Processes in the Cold Regime: Radiative Molecule Formation versus Charge Exchange. Physical Review Letters, 107 (24). p. 243202.

Dulieu, Olivier and Krems, Roman and Weidemüller, Matthias and Willitsch, Stefan. (2011) Physics and Chemistry of Cold Molecules. Physical Chemistry Chemical Physics, 13 (42). pp. 18703-18704.

Georgescu, Iulia M. and Willitsch, Stefan. (2011) Theoretical characterization of laser- and sympathetically-cooled ions in surface-electrode ion traps. Physical Chemistry Chemical Physics, 13 (42). pp. 18852-18858.

2010

Willitsch, Stefan. (2010) Molecular physics: very cool molecular ions. Nature Physics, 6 (4). pp. 240-241.

Willitsch, Stefan. (2010) Nahe am Nullpunkt. Nachrichten aus der Chemie, 58 (9). pp. 872-875.

Maier, John P. and Willitsch, Stefan . (2010) Spectroscopy and Chemical Dynamics. Chimia, 64 (12). pp. 855-858.

Tong, Xin and Winney, Alexander H. and Willitsch, Stefan. (2010) Sympathetic Cooling of Molecular Ions in Selected Rotational and Vibrational States Produced by Threshold Photoionization. Physical Review Letters, 105 (14). p. 143001.

2009

Bell, Martin T. and Gingell, Alexander D. and Oldham, James M. and Softley, Timothy P. and Willitsch, Stefan. (2009) Ion-molecule chemistry at very low temperatures : cold chemical reactions between Coulomb-crystallized ions and velocity-selected neutral molecules. In: Faraday Discussions, 142. London, pp. 73-91.

Willitsch, Stefan. (2009) Molecules and Ions at Very Low Temperatures. Chimia, 63 (1/2). pp. 54-57.

2008

Willitsch, Stefan and Bell, Martin T. and Gingell, Alexander D. and Softley, Timothy P.. (2008) Chemical applications of laser- and sympathetically-cooled ions in ion traps. Physical Chemistry Chemical Physics, 10 (48). pp. 7200-7210.

This list was generated on Fri Oct 7 14:41:30 2022 CEST.