Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influence of intensity distribution of laser beam on the properties of
  nanoparticles obtained by laser ablation of solids in liquids   Control over the properties of nanoparticles obtained by laser ablation in
liquids is experimentally demonstrated via modulation of the beam intensity
profile on the target. Mask projection scheme was used with either a copper
laser (wavelength of 510. 6 nm, pulse duration of 10ns) or with a Ti:sapphire
laser (wavelength of 800 nm and pulse duration of 200 fs). Si and ZnSe were
chosen as target materials. Obtained nanoparticles were characterized using
Transmission Electron Microscopy (TEM), optical absorption spectroscopy and
photoluminescence. It was shown that that size of Si nanoparticles depends on
the spatial profile of the laser beam.

28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga