Publications of Alexander Paarmann

Kießling, R., Y. Tong, A.J. Giles, S. Gewinner, W. Schöllkopf, J.D. Caldwell, M. Wolf and A. Paarmann: Surface Phonon Polariton Resonance Imaging Using Long-Wave Infrared-Visible Sum-Frequency Generation Microscopy. ACS Photonics 6 (11), 3017–3023 (2019).

Paßler, N. and A. Paarmann: Generalized 4 × 4 matrix formalism for light propagation in anisotropic stratified media: study of surface phonon polaritons in polar dielectric heterostructures: erratum [J. Opt. Soc. Am. B 34, 2128 (2017)]. Journal of the Optical Society of America B 36 (11), 3246–3248 (2019).

Ratchford, D.C., C. Winta, I. Chatzakis, C.T. Ellis, N. Paßler, J. Winterstein, P. Dev, I. Razdolski, J.R. Matson, J.R. Nolen, J.G. Tischler, I. Vurgaftman, M.B. Katz, N. Nepal, M.T. Hardy, J.A. Hachtel, J.C. Idrobo, T.L. Reinecke, A.J. Giles, D.S. Katzer, N.D. Bassim, R.M. Stroud, M. Wolf, A. Paarmann and J.D. Caldwell: Controlling the Infrared Dielectric Function through Atomic-Scale Heterostructures. ACS Nano 13 (6), 6730–6741 (2019).

Paßler, N., I. Razdolski, D.S. Katzer, D.F. Storm, J.D. Caldwell, M. Wolf and A. Paarmann: Second Harmonic Generation from Phononic Epsilon-Near-Zero Berreman Modes in Ultrathin Polar Crystal Films. ACS Photonics 6 (6), 1365–1371 (2019).

Winta, C., M. Wolf and A. Paarmann: Low-temperature infrared dielectric function of hyperbolic α-quartz. Physical Review B 99 (14), 144308 (2019).

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

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

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

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

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

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

Paßler, N. and A. Paarmann: 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), 102128–102139 (2017).

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

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

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

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

Paarmann, A., I. Razdolski, A. Melnikov, S. Gewinner, W. Schöllkopf and M. Wolf: 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., A. Paarmann and R. Ernstorfer: Femtosecond electrons probing currents and atomic structure in nanomaterials. Nature Communications 5 (10), 5292 (2014).