Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fresnel diffraction in an interferometer: application to MATISSE   While doing optical study in an instrument similar to the interferometers
dedicated to the Very Large Telescope (VLT), we have to take care of the pupil
and focus conjugations. Modules with artificial sources are designed to
simulate the stellar beams, in terms of collimation and pupil location. They
constitute alignment and calibration tools. In this paper, we present such a
module in which the pupil mask is not located in a collimated beam thus
introducing Fresnel diffraction. We study the instrumental contrast taking into
account the spatial coherence of the source, and the pupil diffraction. The
considered example is MATISSE, but this study can apply to any other instrument
concerned with Fresnel diffraction.

24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph