Vibrational Fingerprints of Lithium Niobate on Insulator and Technological Aspects for Domain Inversion in ion-sliced LiNbO3

P. Mackwitz, J. Brockmeier, M. Rsing, M. Zhai, H. Hu, G. Berth and A. Zrenner

IFAAP 2018, Hiroshima (2018)

http://hiroshima2018.com/meeting-web/technical_program.html

Vibrational fingerprints of lithium niobate on insulator and technological aspects for domain inversion in z-cut LiNbO3 thin films

P. Mackwitz, M. Rüsing, K. Spychala, M. Zhai, H. Hu, G. Berth, A. Zrenner

DPG Spring Meeting, Berlin (2018)

https://www.dpg-verhandlungen.de/year/2018/conference/berlin/part/kfm/session/7/contribution/3

Local properties of PPKTP waveguide structures probed by Raman spectroscopy

J. Brockmeier, M. Rüsing, C. Eigner, L. Padberg, P. Mackwitz, C. Silberhorn, G. Berth, A. Zrenner

DPG Spring Meeting, Berlin (2018)

https://www.dpg-verhandlungen.de/year/2018/conference/berlin/part/kfm/session/3/contribution/5

Vibrational Signatures of Ti and Fe Doped Lithium Niobate

P. Mackwitz, M. Rüsing, G. Berth, A. Zrenner

IEEE Joint ISAF - IWATMD - PFM meeting, Atlanta (2017)

https://isaf-iwatmd-pfm2017.weebly.com/uploads/1/2/3/4/12340133/final-program-compact.pdf

Exemplarily analysis of crystal composition and vibrational properties with the aid of angular dependent µ-Raman spectroscopy on KTP

P. Mackwitz, M. Rüsing, G. Berth, A. Zrenner

EMN-3CG 2016, Donostia - San Sebastián, Spain (2016)

http://emn3cg.org/2016/wp-content/uploads/2016/08/EMN-3CG-2016-Program-1.pdf

Fabrication of periodically patterned domain structures in x-cut thin film LiNbO3

P. Mackwitz, M. Rüsing, G. Berth, A. Zrenner

DPG Spring Meeting, Regensburg (2016)

http://www.dpg-verhandlungen.de/year/2016/conference/regensburg/part/df/session/13/contribution/1

Raman spectroscopy for the characterization of ferroelectric materials: An overview

P. Mackwitz, M. Rüsing, S. Neufeld, S. Sanna, W.G. Schmidt, G. Berth and A. Zrenner

SFB TRR 142 Internal Workshop, Dortmund (2015)

Visualization of ferroelectric domain structures in KTP by confocal Raman imaging

P. Mackwitz, M. Rüsing, G. Berth, A. Zrenner

DPG Spring Meeting, Berlin (2015)

http://www.dpg-verhandlungen.de/year/2015/conference/berlin/part/df/session/9/contribution/6

Vibrational fingerprints of Potassium Titanyl Phosphate: Analysis and visualization of ferroelectric domain structures

M. Rüsing, P. Mackwitz, G. Berth and A. Zrenner

IEEE Joint ISAF - IWATMD - PFM meeting, State College (2014)

Angular dispersion of phonon modes in Potassium Titanyl Phosphate from Raman scattering

P. Mackwitz, M. Rüsing, G. Berth and A. Zrenner

IEEE Joint ISAF - IWATMD - PFM meeting, State College (2014)

Vibrational properties and directional dispersion in KTP

P. Mackwitz, M. Rüsing, G. Berth and A. Zrenner

DPG Spring Meeting, Dresden (2014)

http://www.dpg-verhandlungen.de/year/2014/conference/dresden/part/df/session/2/contribution/6

Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging
J. Brockmeier, P. Mackwitz, M. Rüsing, C. Eigner, L. Padberg, M. Santandrea, C. Silberhorn, A. Zrenner and G. Berth
Crystals, 11(9), 1086 (2021)
DOI: https://doi.org/10.3390/cryst11091086

Nonlinear focal mapping of ferroelectric domain walls in LiNbO3: Analysis of the SHG microscopy contrast mechanism
K. J. Spychala, P. Mackwitz, M. Rüsing, A. Widhalm, G. Berth, C. Silberhorn and A. Zrenner
J. Appl. Phys 128, 234102, (2020)
DOI: https://doi.org/10.1063/5.0025284

Characterisation of width-dependent diffusion dynamics in rubidium-exchanged KTP waveguides
L. Padberg, M. Santandrea, M. Rüsing, J. Brockmeier, P. Mackwitz, G. Berth, A. Zrenner, C. Eigner, and C. Silberhorn
Optics Express Vol. 28, Issue 17, pp. 24353-24362 (2020)
DOI: https://doi.org/10.1364/OE.397074

Spatially resolved light field analysis of the second-harmonic signal of X^(2)-materials in the tight focusing regime
K.J. Spychala, P. Mackwitz, A. Widhalm, G. Berth and A. Zrenner
J. Appl. Phys. 127 (4), 023103 (2020)
DOI: https://doi.org/10.1063/1.5133476

Imaging of 180° ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism
M. Rüsing, S. Neufeld, J. Brockmeier, C. Eigner, P. Mackwitz, K. Spychala, C. Silberhorn, W. G. Schmidt, G. Berth, A. Zrenner, and S. Sanna
Phys. Rev. Materials 2, 103801 (2018)
DOI: https://doi.org/10.1103/PhysRevMaterials.2.103801

Periodic domain inversion in x-cut single-crystal lithium niobate thin film
P. Mackwitz, M. Rüsing, A. Widhalm, K. Müller, G. Berth and A. Zrenner
Applied Physics Letters 108, 152902 (2016)
DOI: http://dx.doi.org/10.1063/1.4946010

Identification of ferroelectric domain structure sensitive phonon modes in potassium titanyl phosphate: A fundamental study
M. Rüsing, C. Eigner, P. Mackwitz, G. Berth, C. Silberhorn and A. Zrenner
J. Appl. Phys. 119 (4), S. 44103
DOI: 10.1063/1.4940964.

Nonlinear analysis of periodically poled waveguides in KTP: A fundamental study
Master Thesis
University of Paderborn (2017)

Spectroscopic analysis of domain inversion in ferroelectrics
Bachelor Thesis
University of Paderborn (2015)