Publications by authors named "Alexander Paarmann"

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Ultraconfined terahertz phonon polaritons in hafnium dichalcogenides.
Ryan A Kowalski, Niclas S Mueller, Gonzalo Álvarez-Pérez, Maximilian Obst, Katja Diaz-Granados, Alexander Paarmann

Nat Mater· November 2025

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Full Crystallographic Imaging of Hexagonal Boron Nitride Monolayers with Phonon-Enhanced Sum-Frequency Microscopy.
Niclas S Mueller, Alexander P Fellows, Ben John, Andrew E Naclerio, Christian Carbogno, Alexander Paarmann

Adv Mater· November 2025

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Roadmap for Photonics with 2D Materials.
F Javier García de Abajo, D N Basov, Frank H L Koppens, Lorenzo Orsini, Matteo Ceccanti, Alexander Paarmann

ACS Photonics· August 2025

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Visualization of topological shear polaritons in gypsum thin films.
Pablo Díaz-Núñez, Christian Lanza, Ziwei Wang, Vasyl G Kravets, Jiahua Duan, Alexander Paarmann

Sci Adv· July 2025

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Electro-optic cavities for in-situ measurement of cavity fields.
Michael S Spencer, Joanna M Urban, Maximilian Frenzel, Niclas S Mueller, Olga Minakova, Alexander Paarmann

Light Sci Appl· February 2025

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Spectroscopic and Interferometric Sum-Frequency Imaging of Strongly Coupled Phonon Polaritons in SiC Metasurfaces.
Richarda Niemann, Niclas S Mueller, Sören Wasserroth, Guanyu Lu, Martin Wolf, Alexander Paarmann

Adv Mater· August 2024

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Controlling the propagation asymmetry of hyperbolic shear polaritons in beta-gallium oxide.
Joseph Matson, Sören Wasserroth, Xiang Ni, Maximilian Obst, Katja Diaz-Granados, Alexander Paarmann

Nat Commun· August 2023

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Compact oblique-incidence nonlinear widefield microscopy with paired-pixel balanced imaging.
Tuhin Khan, Ben John, Richarda Niemann, Alexander Paarmann, Martin Wolf

Opt Express· August 2023

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Observation of directional leaky polaritons at anisotropic crystal interfaces.
Xiang Ni, Giulia Carini, Weiliang Ma, Enrico Maria Renzi, Emanuele Galiffi, Alexander Paarmann

Nat Commun· May 2023

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Real-space nanoimaging of hyperbolic shear polaritons in a monoclinic crystal.
Guangwei Hu, Weiliang Ma, Debo Hu, Jing Wu, Chunqi Zheng, Alexander Paarmann

Nat Nanotechnol· January 2023

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Hyperbolic shear polaritons in low-symmetry crystals.
Nikolai C Passler, Xiang Ni, Guangwei Hu, Joseph R Matson, Giulia Carini, Alexander Paarmann

Nature· February 2022

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Controlling the Infrared Dielectric Function through Atomic-Scale Heterostructures.
Daniel C Ratchford, Christopher J Winta, Ioannis Chatzakis, Chase T Ellis, Nikolai C Passler, Alexander Paarmann

ACS Nano· June 2019

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Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures.
Nikolai Christian Passler, Christopher R Gubbin, Thomas Graeme Folland, Ilya Razdolski, D Scott Katzer, Alexander Paarmann

Nano Lett· July 2018

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Dissecting spin-phonon equilibration in ferrimagnetic insulators by ultrafast lattice excitation.
Sebastian F Maehrlein, Ilie Radu, Pablo Maldonado, Alexander Paarmann, Michael Gensch

Sci Adv· July 2018

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Terahertz Sum-Frequency Excitation of a Raman-Active Phonon.
Sebastian Maehrlein, Alexander Paarmann, Martin Wolf, Tobias Kampfrath

Phys Rev Lett· September 2017

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Resonant Enhancement of Second-Harmonic Generation in the Mid-Infrared Using Localized Surface Phonon Polaritons in Subdiffractional Nanostructures.
Ilya Razdolski, Yiguo Chen, Alexander J Giles, Sandy Gewinner, Wieland Schöllkopf, Alexander Paarmann

Nano Lett· November 2016

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Femtosecond electrons probing currents and atomic structure in nanomaterials.
Melanie Müller, Alexander Paarmann, Ralph Ernstorfer

Nat Commun· October 2014

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Ultrafast evolution of the excited-state potential energy surface of TiO2 single crystals induced by carrier cooling.
Elisabeth M Bothschafter, Alexander Paarmann, Eeuwe S Zijlstra, Nicholas Karpowicz, Martin E Garcia

Phys Rev Lett· February 2013

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Excitonic effects in two-dimensional vibrational spectra of liquid formamide.
Alexander Paarmann, Manuela Lima, Riccardo Chelli, Victor V Volkov, Roberto Righini

Phys Chem Chem Phys· June 2011

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Diffractive optics based four-wave, six-wave, ..., nu-wave nonlinear spectroscopy.
R J Dwayne Miller, Alexander Paarmann, Valentyn I Prokhorenko

Acc Chem Res· September 2009

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