Zobrazeno 1 - 10
of 66
pro vyhledávání: '"George, D K"'
Autor:
Mukherjee, A., Seo, J., Arik, M. M., Zhang, H., Zhang, C., Kirzhner, T., George, D. K., Markelz, A. G., Armitage, N. P., Koren, G., Wei, J. Y. T., Cerne, J.
Publikováno v:
Phys. Rev. B 102, 054520 (2020)
By measuring the polarization changes in THz, infrared, and visible radiation over an extended energy range (3-2330 meV), we observe symmetry-breaking in cuprate high temperature superconductors over wide energy, doping, and temperature ranges. We me
Externí odkaz:
http://arxiv.org/abs/1907.08649
We examine changes in the picosecond structural dynamics with irreversible photobleaching of red fluorescent proteins mCherry, mOrange2 and TagRFP-T. Measurements of the protein dynamical transition using terahertz time-domain spectroscopy show in al
Externí odkaz:
http://arxiv.org/abs/1906.00893
Autor:
George, D. K., Hawkins, M., McLaren, M., Jiang, H. X., Lin, J. Y., Zavada, J. M., Vinh, N. Q.
We report direct evidence of two mechanisms responsible for the excitation of optically active Er3+ ions in GaN epilayers grown by metal-organic chemical vapor deposition. These mechanisms, resonant excitation via the higher-lying inner 4f shell tran
Externí odkaz:
http://arxiv.org/abs/1507.05119
Autor:
Vinh, N. Q., Sherwin, Mark S., Allen, S. James, George, D. K., Rahmani, A. J., Plaxco, Kevin. W.
Publikováno v:
Published in Journal of Chemical Physics, Vol 142, 164502 (2015)
Because it is sensitive to fluctuations occurring over femtoseconds to picoseconds, gigahertz-to-terahertz dielectric relaxation spectroscopy can provide a valuable window into water's most rapid intermolecular motions. In response, we have built a v
Externí odkaz:
http://arxiv.org/abs/1505.07100
We report the development of new terahertz techniques for rapidly measuring the complex Faraday angle in systems with broken time-reversal symmetry using the cyclotron resonance of a GaAs two-dimensional electron gas in a magnetic field as a system f
Externí odkaz:
http://arxiv.org/abs/1201.2701
We examine temperature dependent picosecond dynamics as a function of structure and function for lysozyme and cytochrome c using temperature dependent terahertz permittivity measurements. A double Arrhenius temperature dependence with activation ener
Externí odkaz:
http://arxiv.org/abs/1105.4425
Autor:
Aguilar, R. Valdés, Stier, A. V., Liu, W., Bilbro, L. S., George, D. K., Bansal, N., Wu, L., Cerne, J., Markelz, A. G., Oh, S., Armitage, N. P.
Publikováno v:
Phys. Rev. Lett. 108, 087403 (2012)
Ordered states of matter are typically categorized by their broken symmetries. With the ordering of spins in a ferromagnet or the freezing of a liquid into a solid, the loss of symmetry distinguishes the ordered state from the disordered one. In cont
Externí odkaz:
http://arxiv.org/abs/1105.0237
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This volume is dedicated to the ethical problems related to carcinogenesis. It discusses the karyogamic theory in a new light, using new arguments, and considers the prospects of cancer prevention and treatment. The current stage of scientific develo