Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffraction-limited axial scanning in thick biological tissue employing
  an aberration correcting adaptive lens   Diffraction-limited focusing deep into biological tissue is challenging due
to spherical aberrations that lead to a broadening of the focal spot
particularly in axial direction. While the diffraction-limit can be restored
employing aberration correction with a deformable mirror or spatial light
modulator, a bulky optical setup results due to the required beam-folding. We
propose a bi actor adaptive lens, that enables axial scanning and at the same
time correction of specimen induced spherical aberrations while offering a
compact setup. Using the bi-actor lens in a confocal microscope, we show
diffraction limited axial scanning up to \SI{340}{\micro m} deep inside a
phantom specimen. Applying this technique for in-vivo measurements of zebrafish
embryos with reporter gene-driven fluorescence in the thyroid gland reveals
substructures of thyroid follicles.

26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph