Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controlling light in complex media beyond the acoustic diffraction-limit
  using the acousto-optic transmission matrix   Studying the internal structure of complex samples with light is an important
task, but a difficult challenge due to light scattering. While the complex
optical distortions induced by multiple scattering can be effectively undone
with the knowledge of the medium's scattering-matrix, this matrix is generally
unknown, and cannot be measured with high resolution without the presence of
fluorescent or absorbing probes at all points of interest. To overcome these
limitations, we introduce here the concept of the acousto-optic transmission
matrix (AOTM). Taking advantage of the near scattering-free propagation of
ultrasound in complex samples, we noninvasively measure an
ultrasonically-encoded, spatially-resolved, optical scattering-matrix. We
demonstrate that a singular value decomposition analysis of the AOTM, acquired
using a single or multiple ultrasonic beams, allows controlled optical focusing
beyond the acoustic diffraction limit in scattering media. Our approach
provides a generalized framework for analyzing acousto-optical experiments, and
for noninvasive, high-resolution study of complex media.

13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex