Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Gerhard Berth"'
Autor:
Sergej Neufeld, Uwe Gerstmann, Laura Padberg, Christof Eigner, Gerhard Berth, Christine Silberhorn, Lukas M. Eng, Wolf Gero Schmidt, Michael Ruesing
Publikováno v:
Crystals, Vol 13, Iss 10, p 1423 (2023)
The crystal family of potassium titanyl phosphate (KTiOPO4) is a promising material group for applications in quantum and nonlinear optics. The fabrication of low-loss optical waveguides, as well as high-grade periodically poled ferroelectric domain
Externí odkaz:
https://doaj.org/article/c36298a10c2a436c9f120465279b50b1
Autor:
Julian Brockmeier, Peter Walter Martin Mackwitz, Michael Rüsing, Christof Eigner, Laura Padberg, Matteo Santandrea, Christine Silberhorn, Artur Zrenner, Gerhard Berth
Publikováno v:
Crystals, Vol 11, Iss 9, p 1086 (2021)
Potassium titanyl phosphate (KTP) is a nonlinear optical material with applications in high-power frequency conversion or quasi-phase matching in submicron period domain grids. A prerequisite for these applications is a precise control and understand
Externí odkaz:
https://doaj.org/article/d5baa1fe6c404f7080c3afc6bdd1bdc4
Autor:
Christine Silberhorn, P. Mackwitz, Gerhard Berth, Michael Rüsing, Christof Eigner, Laura Padberg, Julian Brockmeier, Artur Zrenner, Matteo Santandrea
Publikováno v:
Crystals, Vol 11, Iss 1086, p 1086 (2021)
Crystals; Volume 11; Issue 9; Pages: 1086
Crystals; Volume 11; Issue 9; Pages: 1086
Potassium titanyl phosphate (KTP) is a nonlinear optical material with applications in high-power frequency conversion or quasi-phase matching in submicron period domain grids. A prerequisite for these applications is a precise control and understand
Autor:
Christine Silberhorn, P. Mackwitz, Michael Rüsing, Gerhard Berth, Laura Padberg, Matteo Santandrea, Christof Eigner, Artur Zrenner, Julian Brockmeier
Publikováno v:
Optics express. 28(17)
Integrated χ(2) devices are a widespread tool for the generation and manipulation of light fields, since they exhibit high efficiency, a small footprint and the ability to interface them with fibre networks. Surprisingly, some commonly used material
Autor:
Simone Sanna, Wolf Gero Schmidt, Christof Eigner, Gerhard Berth, Michael Rüsing, Julian Brockmeier, K. J. Spychala, Sergej Neufeld, P. Mackwitz, Christine Silberhorn, Artur Zrenner
Publikováno v:
Physical Review Materials. 2
In recent years, Raman spectroscopy has been used to visualize and analyze ferroelectric domain structures. The technique makes use of the fact that the intensity or frequency of certain phonons is strongly influenced by the presence of domain walls.
Autor:
Alex Widhalm, Gerhard Berth, Artur Zrenner, Michael Rüsing, P. Mackwitz, K. J. Spychala, Christine Silberhorn
Publikováno v:
Journal of Applied Physics. 128:234102
Second-harmonic (SH) microscopy is a widely used tool for the study of ferroelectric domains, domain walls, and their substructure. Yet, the contrast mechanism, particularly for the commonly used large numerical aperture, is not fully understood. In
Publikováno v:
physica status solidi (b). 253:778-782
Cubic gallium nitride (GaN) films are analyzed with highresolution X-ray diffraction (HRXRD) and Raman spectroscopy. Several cubic GaN layers were grown on 3C-SiC (001) substrate by radio-frequency plasma-assisted molecular beam epitaxy. The layer th
Publikováno v:
Journal of Applied Physics. 127:023103
In this work, the second-harmonic (SH) signal generated by nonlinear optical crystals is studied in the tightly focused regime. The experimental approach is based on an adapted focal imaging technique, which allows the mapping of the SH intensity dis
Autor:
Kai J, Spychala, Gerhard, Berth, Alex, Widhalm, Michael, Rüsing, Lei, Wang, Simone, Sanna, Artur, Zrenner
Publikováno v:
Optics express. 25(18)
In this work we study the impact of ion implantation on the nonlinear optical properties in MgO:LiNbO
Autor:
Artur Zrenner, Wolf Gero Schmidt, Sergej Neufeld, Gerhard Berth, Michael Rüsing, Simone Sanna, A. Riefer, Alex Widhalm
Publikováno v:
Ferroelectrics. 447:63-68
Atomistic simulations in the framework of the density functional theory have been used to model morphologic and vibrational properties of lithium niobate–lithium tantalate mixed crystals as a function of the [Nb]/[Ta] ratio. Structural parameters s