Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new method to epitaxially grow long-range ordered self-assembled InAs
  quantum dots on (110) GaAs   We report on a new approach for positioning of self-assembled InAs quantum
dots on (110) GaAs with nanometer precision. By combining self-assembly of
quantum dots with molecular beam epitaxy on in-situ cleaved surfaces
(cleaved-edge overgrowth) we have successfully fabricated arrays of long-range
ordered InAs quantum dots. Both atomic force microscopy and
micro-photoluminescence measurements demonstrate the ability to control size,
position, and ordering of the quantum dots. Furthermore, single dot
photoluminescence investigations confirm the high optical quality of the
quantum dots fabricated.

35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys