Publications of Alexander Paarmann

Carini, G.; Niemann, R.; Müller, N. S.; Wolf, M.; Paarmann, A.: Surface Phonon Polariton Ellipsometry. ACS Photonics 12 (2), pp. 792 - 800 (2025)

Álvarez-Cuervo, J.; Obst, M.; Dixit, S.; Carini, G.; Tresguerres-Mata, A. I. F.; Lanza, C.; Terán-García, E.; Álvarez-Pérez, G.; Álvarez-Tomillo, L. F.; Diaz-Granados, K. et al.; Kowalski, R.; Senerath, A. S.; Müller, N. S.; Herrer, L.; De Teresa, J. M.; Wasserroth, S.; Klopf, J. M.; Beechem, T.; Wolf, M.; Eng, L. M.; Folland, T. G.; Tarazaga Martín-Luengo, A.; Martín-Sánchez, J.; Kehr, S. C.; Nikitin, A. Y.; Caldwell, J. D.; Alonso-González, P.; Paarmann, A.: Unidirectional ray polaritons in twisted asymmetric stacks. Nature Communications 15, 9042 (2024)

Mader, D.; Niemann, R.; Wolf, M.; Maehrlein, S. F.; Paarmann, A.: Sum-frequency generation spectro-microscopy in the reststrahlen band of wurtzite-type aluminum nitride. The Journal of Chemical Physics 161 (9), 094706 (2024)

Niemann, R.; Müller, N. S.; Wasserroth, S.; Lu, G.; Wolf, M.; Caldwell, J. D.; Paarmann, A.: Spectroscopic and Interferometric Sum-Frequency Imaging of Strongly Coupled Phonon Polaritons in SiC Metasurfaces. Advanced Materials 36 (33), 2312507 (2024)

Spencer, M. S.; Urban, J.; Frenzel, M.; Müller, N. S.; Minakova, O.; Wolf, M.; Paarmann, A.; Maehrlein, S. F.: Electro-optic cavities for in-situ measurement of cavity fields. Light: Science & Applications 14, 69 (2024)

Galiffi, E.; Carini, G.; Ni, X.; Álvarez-Pérez, G.; Yves, S.; Renzi, E. M.; Nolen, R.; Wasserroth, S.; Wolf, M.; Alonso-Gonzales, P. et al.; Paarmann, A.; Alù, A.: Extreme light confinement and control in low-symmetry phonon-polaritonic crystals. Nature Reviews Materials 9, 9-28 (2024)

Kießling, R.; Wolf, M.; Paarmann, A.: Spectral narrowing of a phonon resonance in time-domain sum-frequency spectroscopy. Physical Review Research 6 (1), 013066 (2024)

Raschke, M. B.; Schubert, M.; Narang, P.; Paarmann, A.: Publisher's Note: “Optical nanoprobe imaging and spectroscopy” [Appl. Phys. Lett. 123, 230401 (2023)]. Applied Physics Letters 124 (1), 019901 (2024)

Khan, T.; John, B.; Niemann, R.; Paarmann, A.; Wolf, M.; Thämer, M.: Compact oblique-incidence nonlinear widefield microscopy with paired-pixel balanced imaging. Optics Express 31 (18), pp. 28792 - 28804 (2023)

Matson, J.; Waßerroth, S.; Ni, X.; Obst, M.; Diaz-Granados, K.; Carini, G.; Renzi, E.; Galiffi, E.; Folland, T. G.; Eng, L. et al.; Klopf, J.; Mastel, S.; Armster, S.; Gambin, V.; Wolf, M.; Kehr, S. C.; Alu, A.; Paarmann, A.; Caldwell, J.: Controlling the propagation asymmetry of hyperbolic shear polaritons in beta-gallium oxide. Nature Communications 14, 5240 (2023)

Paßler, N.; Ni, X.; Carini, G.; Chigrin, D. N.; Alù, A.; Paarmann, A.: Layer-resolved resonance intensity of evanescent polariton modes in anisotropic multilayers. Physical Review B 107 (23), 235426 (2023)

Ni, X.; Carini, G.; Ma, W.; Renzi, E. M.; Galiffi, E.; Wasserroth, S.; Wolf, M.; Li, P.; Paarmann, A.; Alù, A.: Observation of directional leaky polaritons at anisotropic crystal interfaces. Nature Communications 14, 2845 (2023)

Hu, G.; Ma, W.; Hu, D.; Wu, J.; Zheng, C.; Liu, K.; Zhang, X.; Ni, X.; Chen, J.; Zhang, X. et al.; Dai, Q.; Caldwell, J. D.; Paarmann, A.; Alù, A.; Li, P.; Qiu, C.-W.: Real-space nanoimaging of hyperbolic shear polaritons in a monoclinic crystal. Nature Nanotechnology 18 (1), pp. 64 - 70 (2023)

Kohlmann, M.; Denker, C.; Paßler, N.; Kredl, J.; Wolf, M.; Münzenberg, M.; Paarmann, A.: Second harmonic generation from grating-coupled hybrid plasmon–phonon polaritons. Applied Physics Letters 121 (19), 191105 (2022)

Yue, Y.; Melani, G.; Kirsch, H.; Paarmann, A.; Saalfrank, P.; Campen, R. K.; Tong, Y.: 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), pp. 13467 - 13476 (2022)

He, M.; Folland, T. G.; Duan, J.; Alonso-González, P.; Liberato, S. D.; Paarmann, A.; Caldwell, J. D.: Anisotropy and Modal Hybridization in Infrared Nanophotonics Using Low-Symmetry Materials. ACS Photonics 9 (4), pp. 1078 - 1095 (2022)

Niemann, R.; Waßerroth, S.; Lu, G.; Gewinner, S.; De Pas, M.; Schöllkopf, W.; Caldwell, J. D.; Wolf, M.; Paarmann, A.: Long-wave infrared super-resolution wide-field microscopy using sum-frequency generation. Applied Physics Letters 120 (13), 131102 (2022)

Paßler, N.; Ni, X.; Hu, G.; Matson, J. R.; Carini, G.; Wolf, M.; Schubert, M.; Alù, A.; Caldwell, J. D.; Folland, T. G. et al.; Paarmann, A.: Hyperbolic shear polaritons in low-symmetry crystals. Nature 602 (7898), pp. 595 - 600 (2022)

Paßler, N.; Jeannin, M.; Paarmann, A.: Layer-resolved absorption of light in arbitrarily anisotropic heterostructures. Physical Review B 101 (16), 165425 (2020)

Paßler, N.; Heßler, A.; Wuttig, M.; Taubner, T.; Paarmann, A.: Surface Polariton-Like s-Polarized Waveguide Modes in Switchable Dielectric Thin-Films on Polar Crystals. Advanced Optical Materials 8 (5), 1901056 (2020)