Publications of Alexander Paarmann

Journal Article (41)

Journal Article
E. Galiffi, G. Carini, X. Ni, G. Álvarez-Pérez, S. Yves, E.M. Renzi, R. Nolen, S. Wasserroth, M. Wolf, P. Alonso-Gonzales, A. Paarmann and A. Alù: Extreme light confinement and control in low-symmetry phonon-polaritonic crystals. Nature Reviews Materials 9, 9-28 (2024).
Journal Article
R. Kießling, M. Wolf and A. Paarmann: Spectral narrowing of a phonon resonance in time-domain sum-frequency spectroscopy. Physical Review Research 6 (1), 013066 (2024).
Journal Article
M.B. Raschke, M. Schubert, P. Narang and A. Paarmann: Publisher's Note: “Optical nanoprobe imaging and spectroscopy” [Appl. Phys. Lett. 123, 230401 (2023)]. Applied Physics Letters 124 (1), 019901 (2024).
Journal Article
T. Khan, B. John, R. Niemann, A. Paarmann, M. Wolf and M. Thämer: Compact oblique-incidence nonlinear widefield microscopy with paired-pixel balanced imaging. Optics Express 31 (18), 28792–28804 (2023).
Journal Article
J. Matson, S. Waßerroth, X. Ni, M. Obst, K. Diaz-Granados, G. Carini, E. Renzi, E. Galiffi, T.G. Folland, L. Eng, J. Klopf, S. Mastel, S. Armster, V. Gambin, M. Wolf, S.C. Kehr, A. Alu, A. Paarmann and J. Caldwell: Controlling the propagation asymmetry of hyperbolic shear polaritons in beta-gallium oxide. Nature Communications 14, 5240 (2023).
Journal Article
N. Paßler, X. Ni, G. Carini, D.N. Chigrin, A. Alù and A. Paarmann: Layer-resolved resonance intensity of evanescent polariton modes in anisotropic multilayers. Physical Review B 107 (23), 235426 (2023).
Journal Article
X. Ni, G. Carini, W. Ma, E.M. Renzi, E. Galiffi, S. Wasserroth, M. Wolf, P. Li, A. Paarmann and A. Alù: Observation of directional leaky polaritons at anisotropic crystal interfaces. Nature Communications 14, 2845 (2023).
Journal Article
G. Hu, W. Ma, D. Hu, J. Wu, C. Zheng, K. Liu, X. Zhang, X. Ni, J. Chen, X. Zhang, Q. Dai, J.D. Caldwell, A. Paarmann, A. Alù, P. Li and C.-W. Qiu: Real-space nanoimaging of hyperbolic shear polaritons in a monoclinic crystal. Nature Nanotechnology 18 (1), 64–70 (2023).
Journal Article
M. Kohlmann, C. Denker, N. Paßler, J. Kredl, M. Wolf, M. Münzenberg and A. Paarmann: Second harmonic generation from grating-coupled hybrid plasmon–phonon polaritons. Applied Physics Letters 121 (19), 191105 (2022).
Journal Article
Y. Yue, G. Melani, H. Kirsch, A. Paarmann, P. Saalfrank, R.K. Campen and Y. Tong: Structure and Reactivity of α-Al2O3(0001) Surfaces: How Do Al-I and Gibbsite-like Terminations Interconvert? The Journal of Physical Chemistry C 126 (31), 13467–13476 (2022).
Journal Article
M. He, T.G. Folland, J. Duan, P. Alonso-González, S.D. Liberato, A. Paarmann and J.D. Caldwell: Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials. ACS Photonics 9 (4), 1078–1095 (2022).
Journal Article
R. Niemann, S. Waßerroth, G. Lu, S. Gewinner, M. De Pas, W. Schöllkopf, J.D. Caldwell, M. Wolf and A. Paarmann: Long-wave infrared super-resolution wide-field microscopy using sum-frequency generation. Applied Physics Letters 120 (13), 131102 (2022).
Journal Article
N. Paßler, X. Ni, G. Hu, J.R. Matson, G. Carini, M. Wolf, M. Schubert, A. Alù, J.D. Caldwell, T.G. Folland and A. Paarmann: Hyperbolic shear polaritons in low-symmetry crystals. Nature 602 (7898), 595–600 (2022).
Journal Article
N. Paßler, M. Jeannin and A. Paarmann: Layer-resolved absorption of light in arbitrarily anisotropic heterostructures. Physical Review B 101 (16), 165425 (2020).
Journal Article
N. Paßler, A. Heßler, M. Wuttig, T. Taubner and A. Paarmann: Surface Polariton-Like s-Polarized Waveguide Modes in Switchable Dielectric Thin-Films on Polar Crystals. Advanced Optical Materials 8 (5), 1901056 (2020).
Journal Article
R. Kießling, 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).
Journal Article
N. Paßler 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).
Journal Article
D.C. Ratchford, 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).
Journal Article
N. Paßler, 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).
Journal Article
C. Winta, M. Wolf and A. Paarmann: Low-temperature infrared dielectric function of hyperbolic α-quartz. Physical Review B 99 (14), 144308 (2019).
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