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강상관계 물질 연구단
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Deep learning-based statistical noise reduction for multidimensional spectral data

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Title
Deep learning-based statistical noise reduction for multidimensional spectral data
Author(s)
Younsik Kim; Dongjin Oh; Soonsang Huh; Dongjoon Song; Sunbeom Jeong; Junyoung Kwon; Minsoo Kim; Donghan Kim; Hanyoung Ryu; Jongkeun Jung; Wonshik Kyung; Byungmin Sohn; Suyoung Lee; Jounghoon Hyun; Yeonghoon Lee; Yeongkwan Kim; Changyoung Kim
Publication Date
2021-07
Journal
REVIEW OF SCIENTIFIC INSTRUMENTS, v.92, no.7
Publisher
AMER INST PHYSICS
Abstract
In spectroscopic experiments, data acquisition in multi-dimensional phase space may require long acquisition time, owing to the large phase space volume to be covered. In such a case, the limited time available for data acquisition can be a serious constraint for experiments in which multidimensional spectral data are acquired. Here, taking angle-resolved photoemission spectroscopy (ARPES) as an example, we demonstrate a denoising method that utilizes deep learning as an intelligent way to overcome the constraint. With readily available ARPES data and random generation of training datasets, we successfully trained the denoising neural network without overfitting. The denoising neural network can remove the noise in the data while preserving its intrinsic information. We show that the denoising neural network allows us to perform a similar level of second-derivative and line shape analysis on data taken with two orders of magnitude less acquisition time. The importance of our method lies in its applicability to any multidimensional spectral data that are susceptible to statistical noise.
URI
https://pr.ibs.re.kr/handle/8788114/10082
DOI
10.1063/5.0054920
ISSN
0034-6748
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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