1,085 research outputs found
Changing polar regions : 25th International Congress on Polar Research ; March 17-22, 2013, Hamburg, Germany
Get PDFHewlett-Packard\u27s Spy Games and the Duty of Caremark : How Inconsistent Standards Governing a Director\u27s Duty of Care Disgraced a Company
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Airborne Platforms Help Answer Questions in Polar Geosciences
Get PDFThe polar regions, with their continental ice sheets and partly ice covered oceans, play a crucial role in the Earth system. They are critical to understanding and predicting climate evolution and global sea level change. Airborne platforms offer the most amenable and powerful means of surveying these regions
Geowissenschaftliche Observatorien in den Polargebieten: Das Projekt POLENET (Polar Earth Observing Network) (Geowissenschaftliche Observatorien in den Polargebieten: Das Projekt POLENET (Das Internationale Polarjahr 2007/08, Folge 18)
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Nonlinear optics of graphene in a strong magnetic field
Full text linkGraphene placed in a magnetic field possesses an extremely high
mid/far-infrared optical nonlinearity originating from its unusual band
structure and selection rules for the optical transitions near the Dirac point.
Here we study the linear and nonlinear optical response of graphene in strong
magnetic and optical fields using quantum- mechanical density-matrix formalism.
We calculate the power of coherent terahertz radiation generated as a result of
four-wave mixing in graphene. We show that even one monolayer of graphene gives
rise to appreciable nonlinear frequency conversion efficiency and Raman gain
for modest intensities of incident infrared radiation.Comment: 16 pages, 6 figure
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