Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High frequency optomechanical disk resonators in III-V ternary
  semiconductors   Optomechanical systems based on nanophotonics are advancing the field of
precision motion measurement, quantum control and nanomechanical sensing. In
this context III-V semiconductors offer original assets like the
heteroepitaxial growth of optimized metamaterials for photon/phonon
interactions. GaAs has already demonstrated high performances in optomechanics
but suffers from two photon absorption (TPA) at the telecom wavelength, which
can limit the cooperativity. Here, we investigate TPA-free III-V semiconductor
materials for optomechanics applications: GaAs lattice-matched In0:5Ga0:5P and
Al0:4Ga0:6As. We report on the fabrication and optical characterization of high
frequency (500-700 MHz) optomechanical disks made out of these two materials,
demonstrating high optical and mechanical Q in ambient conditions. Finally we
achieve operating these new devices as laser-sustained optomechanical
self-oscillators, and draw a first comparative study with existing GaAs
systems.

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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: cs
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph