Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonant intersubband polariton-LO phonon scattering in an optically
  pumped polaritonic device   We report experimental evidence of longitudinal optical (LO)
phonon-intersubband polariton scattering processes under resonant injection of
light. The scattering process is resonant with both the initial (upper
polariton) and final (lower polariton) states and is induced by the interaction
of confined electrons with longitudinal optical phonons. The system is
optically pumped with a mid-IR laser tuned between 1094 cm-1 and 1134 cm-1
(lambda=9.14 um and lambda=8.82 um). The demonstration is provided for both
GaAs/AlGaAs and InGaAs/AlInAs doped quantum well systems whose intersubband
plasmon lies at lambda=10 um wavelength. In addition to elucidating the
microscopic mechanism of the polariton-phonon scattering, that is found to
differ substantially from the standard single particle electron-LO phonon
scattering mechanism, this work constitutes the first step towards the
hopefully forthcoming demonstration of an intersubband polariton laser.

33
The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
3
The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
5
The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: econ