Publications of Alexander Paarmann
All genres
Journal Article (46)
2025
Journal Article
G. Carini, R. Niemann, N.S. Müller, M. Wolf and A. Paarmann: Surface Phonon Polariton Ellipsometry. ACS Photonics 12 (2), 792–800 (2025).
2024
Journal Article
, , , G. Carini, , , , G. Álvarez-Pérez, , , , , N.S. Müller, , , S. Wasserroth, , , M. Wolf, , , , , , , , and A. Paarmann: Unidirectional ray polaritons in twisted asymmetric stacks. Nature Communications 15, 9042 (2024).
Journal Article
D. Mader, R. Niemann, M. Wolf, S.F. Maehrlein and A. Paarmann: Sum-frequency generation spectro-microscopy in the reststrahlen band of wurtzite-type aluminum nitride. The Journal of Chemical Physics 161 (9), 094706 (2024).
Journal Article
R. Niemann, N.S. Müller, S. Wasserroth, , M. Wolf, and A. Paarmann: Spectroscopic and Interferometric Sum-Frequency Imaging of Strongly Coupled Phonon Polaritons in SiC Metasurfaces. Advanced Materials 36 (33), 2312507 (2024).
Journal Article
M.S. Spencer, J. Urban, M. Frenzel, N.S. Müller, O. Minakova, M. Wolf, A. Paarmann and S.F. Maehrlein: Electro-optic cavities for in-situ measurement of cavity fields. Light: Science & Applications 14, 69 (2024).
Journal Article
, G. Carini, , G. Álvarez-Pérez, , , , S. Wasserroth, M. Wolf, , A. Paarmann and : 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
, , and A. Paarmann: Publisher's Note: “Optical nanoprobe imaging and spectroscopy” [Appl. Phys. Lett. 123, 230401 (2023)]. Applied Physics Letters 124 (1), 019901 (2024).
2023
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
, S. Waßerroth, , , , G. Carini, , , , , , , , , M. Wolf, , , A. Paarmann and : Controlling the propagation asymmetry of hyperbolic shear polaritons in beta-gallium oxide. Nature Communications 14, 5240 (2023).
Journal Article
N. Paßler, , G. Carini, , and A. Paarmann: Layer-resolved resonance intensity of evanescent polariton modes in anisotropic multilayers. Physical Review B 107 (23), 235426 (2023).
Journal Article
, , , , , S. Wasserroth, M. Wolf, , A. Paarmann and : Observation of directional leaky polaritons at anisotropic crystal interfaces. Nature Communications 14, 2845 (2023).
Journal Article
, , , , , , , , , , , , A. Paarmann, , and : Real-space nanoimaging of hyperbolic shear polaritons in a monoclinic crystal. Nature Nanotechnology 18 (1), 64–70 (2023).
2022
Journal Article
M. Kohlmann, , N. Paßler, , M. Wolf, and A. Paarmann: Second harmonic generation from grating-coupled hybrid plasmon–phonon polaritons. Applied Physics Letters 121 (19), 191105 (2022).
Journal Article
Y. Yue, , H. Kirsch, A. Paarmann, , 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
, , , , , A. Paarmann and : Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials. ACS Photonics 9 (4), 1078–1095 (2022).
Journal Article
R. Niemann, S. Waßerroth, , S. Gewinner, M. De Pas, W. Schöllkopf, , 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, , , , G. Carini, M. Wolf, , , , and A. Paarmann: Hyperbolic shear polaritons in low-symmetry crystals. Nature 602 (7898), 595–600 (2022).
2020
Journal Article
N. Paßler, and A. Paarmann: Layer-resolved absorption of light in arbitrarily anisotropic heterostructures. Physical Review B 101 (16), 165425 (2020).
Journal Article
N. Paßler, , , 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).