منابع مشابه
Low-Frequency Interlayer Breathing Modes in Few-Layer Black Phosphorus.
As a new two-dimensional layered material, black phosphorus (BP) is a very promising material for nanoelectronics and optoelectronics. We use Raman spectroscopy and first-principles theory to characterize and understand the low-frequency (LF) interlayer breathing modes (<100 cm(-1)) in few-layer BP for the first time. Using a laser polarization dependence study and group theory analysis, the br...
متن کاملInterlayer breathing and shear modes in few-layer black phosphorus.
The interlayer breathing and shear modes in few-layer black phosphorus are investigated for their symmetry and lattice dynamical properties. The symmetry groups for the even-layer and odd-layer few-layer black phosphorus are utilized to determine the irreducible representation and the infrared and Raman activity for the interlayer modes. The valence force field model is applied to calculate the...
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Various characterizations of distributions, in their generality, are presented in terms of the conditional expectations. Some special examples are given as well.
متن کاملExperimental demonstration of intermodal nonlinear effects between full vectorial modes in a few moded fiber.
We experimentally investigate intermodal nonlinear interactions, such as Raman scattering and four wave mixing. The fiber used is a specially designed few moded fiber, which splits the degeneracy of the first mode group, leading to stable propagation of the two full vectorial modes, TM01 and TE01. For the Raman experiments pumping occur in either the fundamental mode or the two full vectorial m...
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ژورنال
عنوان ژورنال: Genome Biology
سال: 2000
ISSN: 1465-6906
DOI: 10.1186/gb-spotlight-20000721-01