Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A simple method of measuring profiles of thin liquid films for
  microfluidics experiments by means of interference reflection microscopy   A simple method was developed to observe the interference patterns of the
light reflected by the interfaces of thin liquid films. Employing a fluorescent
microscope with epi-illumination, we collected the 2D patterns of interference
fringes containing information of the liquid film topography at microscale. To
demonstrate the utility of the proposed visualization method we developed a
framework for reconstructing the profiles of liquid films by analysing the
reflected interferograms numerically. Both the visualization and reconstruction
methods should be useful for variety of microfluidic applications involving the
flows with droplets and bubbles in which the knowledge of the topography of the
interfacial liquid film is critical.

37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat