Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electron microscopy probing electron-photon interactions in SiC
  nanowires with ultra-wide energy and momentum match   Nanoscale materials usually can trap light and strongly interact with it
leading to many photonic device applications. The light-matter interactions are
commonly probed by optical spectroscopy, which, however, have some limitations
such as diffraction-limited spatial resolution, tiny momentum transfer and
non-continuous excitation/detection. In this work, using scanning transmission
electron microscopy-electron energy loss spectroscopy (STEM-EELS) with
ultra-wide energy and momentum match and sub-nanometer spatial resolution, we
study the optical microcavity resonant spectroscopy in a single SiC nanowire.
The longitudinal Fabry-Perot (FP) resonating modes and the transverse
whispering-gallery modes (WGMs) are simultaneously excited and detected, which
span from near-infrared (~ 1.2 {\mu}m) to ultraviolet (~ 0.2 {\mu}m) spectral
regime and the momentum transfer can be ranging up to 108 cm{^{-1}}. The size
effects on the resonant spectra of nanowires are also revealed. Moreover, the
nanoscale decay length of resonant EELS is revealed, which is contributed by
the strongly localized electron-photon interactions in the SiC nanowire. This
work provides a new alternative technique to investigate the optical resonating
spectroscopy of a single nanowire structure and to explore the light-matter
interactions in dielectric nanostructures, which is also promising for
modulating free electrons via photonic structures.

36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex