Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarization change induced by a galvanometric optical scanner   We study the optical properties of a two-axis galvanometric optical scanner
constituted by a pair of rotating planar mirrors, focusing our attention on the
transformation induced on the polarization state of the input beam. We obtain
the matrix that defines the transformation of the propagation direction of the
beam and the Jones matrix that defines the transformation of the polarization
state. Both matrices are expressed in terms of the rotation angles of two
mirrors. Finally, we calculate the parameters of the general rotation in the
Poincare' sphere that describes the change of polarization state for each
mutual orientation of the mirrors.

15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
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The categories of this paper are: stat
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con