2026
A. P. Fellows, L. Lehmann, Á. Díaz Duque, M. Wolf, R. R. Netz, and M. Thämer
The Importance of Layer-Dependent Molecular Twisting for the Structural Anisotropy of Interfacial Water
Sci. Adv. (2026) 12(17); eadz5505
Á. Díaz Duque, V. Balos, M. Wolf, A. P. Fellows, and M. Thämer
Anisotropic Water Structure at Charged Interfaces Studied by Depth Resolved Vibrational SFG/DFG Spectroscopy
J. Am. Chem. Soc. (2026) 148(16); 16679–16689
L. Lehmann, M. R. Becker, L. Tepper, A. P. Fellows, Á. Díaz Duque, M. Thämer, and R. R. Netz
Beyond the Electric Dipole Approximation: Electric and Magnetic Multipole Contributions Reveal Biaxial Water Structure from SFG Spectra at the Air-Water Interface
Nat. Commun. (2026) In Press
N. Mirzajani, B. John, M. Wolf, M. Thämer, A. P. Fellows
Mapping In-plane Orientational Order and Correlation Lengths in Molecular Films using Azimuthal-Scanning Vibrational Sum-Frequency Generation Microscopy
Faraday Discuss. (2026) Advance Article
Á. Díaz Duque, S. Kaur, M. Wolf, A. P. Fellows, and M. Thämer
The Influence of Electrolyte Concentration on the Depth-Dependent Structural Anisotropy of Water at Charged Interfaces
Faraday Discuss. (2026) Advance Article
N. S. Mueller, A. P. Fellows, B. John, A. E. Naclerio, C. Carbogno, K. Gharagozloo-Hubmann, D. Baláž, R. A. Kowalski, H. H. Heenen, C. Scheurer, K. Reuter, J. D. Caldwell, M. Wolf, P. R. Kidambi, M. Thämer, A. Paarmann
Full Crystallographic Imaging of Hexagonal Boron Nitride Monolayers with Phonon-Enhanced Sum-Frequency Microscopy
Adv. Mater. (2026) 38(7); e10124
J. M. Urban, M. S. Spencer, M. Frenzel, G. Trippé-Allard, M. Cherasse, C. Berrezueta-Palacios, P. P. Joshi, A. P. Fellows, O. Minakova, E. B. Barros, L. Perfetti, S. Reich, M. Wolf, E. Deleporte, S. F. Maehrlein
THz-Driven Coherent Phonon Fingerprints of Hidden Symmetry Breaking in 2D Layered Hybrid Perovskites
Adv. Mater. (2026) 38(4); e02204
2025
Y. Behovits, A. L. Chekhov, A. Ruge, R. Rouzegar, B. Rosinus Serrano, A. P. Fellows, B. John, M. Thämer, S. Reimers, F. Renner, T. Dannegger, U. Nowak, T. S. Seifert, M. Kläui, M. Jourdan, T. Kampfrath
Terahertz switching of antiferromagnetic order by Néel spin-orbit torques
arXiv (2025) arXiv:2512.23397
B. John, S. Kaur, M. Wolf, M. Thämer, and A. P. Fellows
Using Vibrational Sum-Frequency Generation Microscopy to Probe the Impact of Headgroup Functionality on the Hierarchical Domain Structure in Lipid Membranes
Faraday Discuss. (2025) 259; 366-383
2024
A. P. Fellows, Á. Díaz Duque, V. Balos, L. Lehmann, R. R. Netz, M. Wolf, and M. Thämer
Sum-Frequency Generation Spectroscopy of Aqueous Interfaces: The Role of Depth and its Impact on Spectral Interpretation
J. Phys. Chem. C (2024) 128(49); 20733-20750
A. P. Fellows, B. John, M. Wolf, and M. Thämer
Extracting the Heterogeneous 3D Structure of Molecular Films using Higher Dimensional SFG Microscopy
J. Phys. Chem. Lett. (2024) 15; 10849-10857
A. P. Fellows, Á. Díaz Duque, V. Balos, L. Lehmann, R. R. Netz, M. Wolf, and M. Thämer
How Thick is the Air-Water Interface? – A Direct Experimental Measurement of the Decay Length of the Interfacial Structural Anisotropy
Langmuir (2024) 40(35); 18760-18772
A. P. Fellows, B. John, M. Wolf, and M. Thämer
Spiral Packing and Chiral Selectivity in Model Membranes Probed by Phase-Resolved Sum-Frequency Generation Microscopy
Nat. Commun. (2024) 15; 3161
2023
A. P. Fellows, V. Balos, B. John, Á. Díaz Duque, M. Wolf, and M. Thämer
Obtaining Extended Insight into Molecular Systems by Probing Multiple Pathways in Second-Order Nonlinear Spectroscopy
J. Chem. Phys. (2023) 159(16), 164201
A. P. Fellows, M. T. L. Casford, and P. B. Davies
In Situ Investigation of the Oxidation of a Phospholipid Monolayer by Reactive Oxygen Species (ROS)
Biophys. J. (2023) 122(11); 2007-2022
Before 2023
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Investigating Bénard-Marangoni Migration at the Air-Water Interface in the Time Domain using Sum Frequency Generation (SFG) Spectroscopy of Palmitic Acid Monolayers
J. Chem. Phys. (2022) 156(16); 164701
A. P. Fellows, D. Puhan, J. S. S. Wong, M. T. L. Casford, and P. B. Davies
Probing the Nanoscale Heterogeneous Mixing in a High-Performance Polymer Blend
Polymers (2022) 14(1); 192
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Chemically Characterising the Cortical Cell Nano-Structure of Human Hair using Atomic Force Microscopy integrated with Infrared Spectroscopy (AFM-IR)
Int. J. Cosmet. Sci. (2021) 44(1), 42-55
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Using Hybrid Atomic Force Microscopy and Infrared Spectroscopy (AFM-IR) to Identify Chemical Components of the Hair Medulla on the Nanoscale
J. Microsc. (2021) 284(3), 189-202
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Orientation Analysis of Sum Frequency Generation Spectra of Di-chain Phospholipids: Effect of the Second Acyl Chain
AIP Adv. (2021) 11(4), 045119
A. P. Fellows, M. T. L. Casford, P. B. Davies, J. S. Gibson, J. N. Brewin, and D. C. Rees
Nanoscale Adhesion Profiling and Membrane Characterisation in Sickle Cell Disease using Hybrid Atomic Force Microscopy-IR Spectroscopy
Colloids Surf. B (2021) 197, 111383
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Nanoscale Molecular Characterisation of Hair Cuticle Cells Using Integrated Atomic Force Microscopy-Infrared Laser Spectroscopy
Appl. Spectrosc. (2020) 74(12), 1540-1550
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Infrared Nanospectroscopy of Air-Sensitive Biological Substrates Protected by Thin Hydrogel Films
Biophys. J. (2020) 119(8), 1474-1480
A. P. Fellows, D. Puhan, M. T. L. Casford, and P. B. Davies
Understanding the Lubrication Mechanism of Polyvinyl Alcohol Hydrogels using Infrared Nanospectroscopy
J. Phys. Chem. C (2020) 124(33), 18091-18101
A. P. Fellows, M. T. L. Casford, and P. B. Davies
Spectral Analysis and Deconvolution of the Amide-I Band of Proteins Presenting with High-Frequency Noise and Baseline Shifts
Appl. Spectrosc. (2020) 74(5), 597-615
S. A. Goussous, A. P. Fellows, M. T. L. Casford, and P. B. Davies
A Time Domain Study of Surfactin Penetrating a Phospholipid Monolayer at the Air-Water Interface Investigated using Sum Frequency Generation Spectroscopy, Infrared Reflection Absorption Spectroscopy, and AFM-Nano Infrared Microscopy
BBA-Biomembranes (2019) 1861(9), 1568-1578