Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rayleigh scattering boosted multi-GHz displacement sensitivity in
  whispering gallery opto-mechanical resonators   Finite photon lifetimes for light fields in an opto-mechanical cavity impose
a bandwidth limit on displacement sensing at mechanical resonance frequencies
beyond the loaded cavity photon decay rate. Opto-mechanical modulation
efficiency can be enhanced via multi-GHz transduction techniques such as
piezo-opto-mechanics at the cost of on-chip integration. In this paper, we
present a novel high bandwidth displacement sense scheme employing Rayleigh
scattering in photonic resonators. Using this technique in conjunction with
on-chip electrostatic drive in silicon enables efficient modulation at
frequencies up to 9.1GHz. Being independent of the drive mechanism, this scheme
could readily be extended to piezo-opto-mechanical and all optical transduced
systems.

29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int