Publications of Alexander Paarmann

Pufahl, K.; Paßler, N.; Grosse, N. B.; Wolf, M.; Woggon, U.; Paarmann, A.: Controlling nanoscale air-gaps for critically coupled surface polaritons by means of non-invasive white-light interferometry. Applied Physics Letters 113 (16), 161103 (2018)

Razdolski, I.; Paßler, N.; Gubbin, C. R.; Winta, C.; Cernansky, R.; Martini, F.; Politi, A.; Maier, S. A.; Wolf, M.; Paarmann, A. et al.; De Liberato, S.: Second harmonic generation from strongly coupled localized and propagating phonon-polariton modes. Physical Review B 98 (12), 125425 (2018)

Kießling, R.; Colson, W. B.; Gewinner, S.; Schöllkopf, W.; Wolf, M.; Paarmann, A.: Femtosecond single-shot timing and direct observation of subpulse formation in an infrared free-electron laser. Physical Review Accelerators and Beams 21 (08), 080702 (2018)

Porer, M.; Fechner, M.; Bothschafter, E. M.; Rettig, L.; Savoini, M.; Esposito, V.; Rittmann, J.; Kubli, M.; Neugebauer, M. J.; Abreu, E. et al.; Kubacka, T.; Huber, T.; Lantz, G.; Parchenko, S.; Grübel, S.; Paarmann, A.; Noack, J.; Beaud, P.; Ingold, G.; Aschauer, U.; Johnson, S. L.; Staub, U.: Ultrafast Relaxation Dynamics of the Antiferrodistortive Phase in Ca Doped SrTiO₃. Physical Review Letters 121 (05), 055701 (2018)

Paßler, N.; Gubbin, C. R.; Folland, T. G.; Razdolski, I.; Katzer, D. S.; Storm, D. F.; Wolf, M.; Liberato, S. D.; Caldwell, J. D.; Paarmann, A.: Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures. Nano Letters 18 (7), pp. 4285 - 4292 (2018)

Maehrlein, S. F.; Radu, I.; Maldonado, P.; Paarmann, A.; Gensch, M.; Kalashnikova, A. M.; Pisarev, R. V.; Wolf, M.; Oppeneer, P. M.; Barker, J. et al.; Kampfrath, T.: Dissecting spin-phonon equilibration in ferrimagnetic insulators by ultrafast lattice excitation. Science Advances 4 (7), eaar5164 (2018)

Winta, C.; Gewinner, S.; Schöllkopf, W.; Wolf, M.; Paarmann, A.: Second-harmonic phonon spectroscopy of α-quartz. Physical Review B 97 (9), 094108 (2018)

Maehrlein, S. F.; Paarmann, A.; Wolf, M.; Kampfrath, T.: Terahertz Sum-Frequency Excitation of a Raman-Active Phonon. Physical Review Letters 119 (12), 127402 (2017)

Paßler, N.; Paarmann, A.: Generalized 4 × 4 matrix formalism for light propagation in anisotropic stratified media: study of surface phonon polaritons in polar dielectric heterostructures. Journal of the Optical Society of America B 34 (10), pp. 102128 - 102139 (2017)

Passler, N.; Razdolski, I.; Gewinner, S.; Schöllkopf, W.; Wolf, M.; Paarmann, A.: Second-Harmonic Generation from Critically Coupled Surface Phonon Polaritons. ACS Photonics 4 (5), pp. 1048 - 1053 (2017)

Razdolski, I.; Chen, Y.; Giles, A. J.; Gewinner, S.; Schöllkopf, W.; Hong, M.; Wolf, M.; Giannini, V.; Caldwell, J. D.; Maier, S. A. et al.; Paarmann, A.: Resonant Enhancement of Second-Harmonic Generation in the Mid-Infrared Using Localized Surface Phonon Polaritons in Subdiffractional Nanostructures. Nano Letters 16 (11), pp. 6954 - 6959 (2016)

Paarmann, A.; Razdolski, I.; Gewinner, S.; Schöllkopf, W.; Wolf, M.: Effects of crystal anisotropy on optical phonon resonances in midinfrared second harmonic response of SiC. Physical Review B 94 (13), 134312 (2016)

Müller, M.; Kravtsov, V.; Paarmann, A.; Raschke, M. B.; Ernstorfer, R.: Nanofocused Plasmon-Driven Sub-10 fs Electron Point Source. ACS Photonics 3 (4), pp. 611 - 619 (2016)

Paarmann, A.; Razdolski, I.; Melnikov, A.; Gewinner, S.; Schöllkopf, W.; Wolf, M.: Second harmonic generation spectroscopy in the Reststrahl band of SiC using an infrared free-electron laser. Applied Physics Letters 107 (8), 081101 (2015)

Müller, M.; Paarmann, A.; Ernstorfer, R.: Femtosecond electrons probing currents and atomic structure in nanomaterials. Nature Communications 5 (10), 5292 (2014)

Lüneburg, S.; Müller, M.; Paarmann, A.; Ernstorfer, R.: Microelectrode for energy and current control of nanotip field electron emitters. Applied Physics Letters 103 (21), 213506 (2013)

Bothschafter, E.; Paarmann, A.; Karpowicz, N.; Zijlstra, E.S.; Garcia, M.E.; Krausz, F.; Kienberger, R.; Ernstorfer, R.: Interband excitation and carrier relaxation as displacive driving force for coherent phonons. EPJ Web of Conferences 41, 04021 (2013)

Müller, M.; Paarmann, A.; Xu, C.; Ernstorfer, R.: Coherent Electron Source for Ultrafast Electron Diffraction and Imaging. EPJ Web of Conferences 41, 10007 (2013)

Bothschafter, E. M.; Paarmann, A.; Zijlstra, E. S.; Karpowicz, N.; Garcia, M. E.; Kienberger, R.; Ernstorfer, R.: Ultrafast Evolution of the Excited-State Potential Energy Surface of TiO₂ Single Crystals Induced by Carrier Cooling. Physical Review Letters 110 (6), 067402 (2013)

Paarmann, A.; Gulde , M.; Müller, M.; Schäfer , S.; Schweda , S.; Maiti, M.; Xu, C.; Hohage, T.; Schenk , F.; Ropers, C. et al.; Ernstorfer, R.: Coherent femtosecond low-energy single-electron pulses for time-resolved diffraction and imaging: A numerical study. Journal of Applied Physcis 112 (11), 113109 (2012)