Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Source noise suppression in attosecond transient absorption spectroscopy
  by edge-pixel referencing   Attosecond transient absorption spectroscopy (ATAS) is used to observe
photoexcited dynamics with outstanding time resolution. The main experimental
challenge of this technique is that high-harmonic generation sources show
significant instabilities, resulting in sub-par sensitivity when compared to
other techniques. This paper proposes edge-pixel referencing as a means to
suppress this noise. Two approaches are introduced: the first is deterministic
and uses a correlation analysis, while the second relies on singular value
decomposition. Each methods is demonstrated and quantified on a noisy
measurement taken on $\text{WS}_2$ and results in a fivefold increase in
sensitivity. The combination of the two methods ensures the fidelity of the
procedure and can be implemented on live data collection but also on existing
datasets. The results show that edge-referencing methods bring the sensitivity
of ATAS near the detector noise floor. An implementation of the post-processing
code is provided to the reader.

31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an