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pro vyhledávání: '"Geiger, Franz"'
Autor:
Ma, Emily, Kim, Jeongmin, Chang, HanByul, Ohno, Paul E., Jodts, Richard J., Miller III, Thomas F., Geiger, Franz M.
Second harmonic generation amplitude and phase measurements are acquired in real time from fused silica:water interfaces that are subjected to ionic strength transitions conducted at pH 5.8. In conjunction with atomistic modeling, we identify correla
Externí odkaz:
http://arxiv.org/abs/2106.02893
Autor:
Ma, Emily, Ohno, Paul E., Kim, Jeongmin, Liu, Yangdongling Dawning, Lozier, Emilie H., Miller III, Thomas F., Wang, Hong-Fei, Geiger, Franz M.
Publikováno v:
J. Phys. Chem. Letters (2021)
Non-resonant second harmonic generation phase and amplitude measurements obtained from the silica:water interface at varying pH and 0.5 M ionic strength point to the existence of a nonlinear susceptibility term, which we call chi(3)X, that is associa
Externí odkaz:
http://arxiv.org/abs/2104.02802
Autor:
Boamah, Mavis D., Lozier, Emilie H., Kim, Jeongmin, Ohno, Paul E., Walker, Catherine E., Miller III, Thomas F., Geiger, Franz M.
Publikováno v:
PNAS 2019
Current approaches for electric power generation from nanoscale conducting or semi-conducting layers in contact with moving aqueous droplets are promising as they show efficiencies of around 30 percent, yet, even the most successful ones pose challen
Externí odkaz:
http://arxiv.org/abs/1907.13170
Ion specific outcomes at aqueous interfaces remain among the most enigmatic phenomena in interfacial chemistry. Here, charged fused silica/water interfaces have been probed by homodyne- and heterodyne-detected (HD) second harmonic generation (SHG) sp
Externí odkaz:
http://arxiv.org/abs/1905.04148
Autor:
Ohno, Paul E., Chang, HanByul, Spencer, Austin P., Liu, Yangdongling, Boamah, Mavis D., Wang, Hong-fei, Geiger, Franz M.
We report ionic strength-dependent phase shifts in second harmonic generation (SHG) signals from charged interfaces that verify a recent model in which dispersion between the fundamental and second harmonic beams modulates observed signal intensities
Externí odkaz:
http://arxiv.org/abs/1903.05707
Akademický článek
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Akademický článek
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Autor:
Geiger, Franz-Xaver, Malavolta, Ivano
Mobile phones and tablets have become the most widely used computing devices, with a large predominance of the Android platform. As a natural evolution, the development of Android applications has surged and has become a major field of study, with re
Externí odkaz:
http://arxiv.org/abs/1809.10069
Atom probe tomography (APT) analysis of chemically pure nanofilms of zero-valent iron (Fe(0), or ZVI) and their thermal oxide nano-overlayers reveals the presence of dendritic iron oxide features that extend from the oxide nano-overlayer surface into
Externí odkaz:
http://arxiv.org/abs/1809.04909
Autor:
Dogangun, Merve, Ohno, Paul E., Liang, Dongyue, McGeachy, Alicia C., Be, Ariana Gray, Dalchand, Naomi, Li, Tianzhe, Cui, Qiang, Geiger, Franz M.
We report vibrational sum frequency generation spectra from supported lipid bilayers in which the OH and the CH stretching signals are probed at different salt concentrations. Atomistic simulations show a negligible impact of salt on the OH stretchin
Externí odkaz:
http://arxiv.org/abs/1803.01202