Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High refractive index immersion liquid for super-resolution 3D imaging
  using sapphire-based aNAIL optics   Optically-transparent immersion liquids with refractive index (n ~ 1.77) to
match sapphire-based aplanatic numerical aperture increasing lens (aNAIL) are
necessary for achieving deep 3D imaging with high spatial resolution. We report
that antimony tribromide (SbBr$_{3}$) salt dissolved in liquid diiodomethane
(CH$_{2}$I$_{2}$) provides a new high refractive index immersion liquid for
optics applications. The refractive index is tunable from n = 1.74 (pure) to n
= 1.873 (saturated), by adjusting either salt concentration or temperature;
this allows it to match (or even exceed) the refractive index of sapphire.
Importantly, the solution gives excellent light transmittance in the
ultraviolet to near-infrared range, an improvement over commercially-available
immersion liquids. This refractive index matched immersion liquid formulation
has enabled us to develop a sapphire-based aNAIL objective that has both high
numerical aperture (NA = 1.17) and long working distance (WD = 12 mm). This
opens up new possibilities for deep 3D imaging with high spatial resolution.

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The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin