Open AccessTrapping stiffness measurement with brownian motion analysis method at low sampling frequency
Author(s) -
Jiang Yu-Qiang,
Honglian Guo,
Chunxiang Liu,
Zhaolin Li,
Bingying Cheng,
Daozhong Zhang,
Suotang Jia
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.1721
Subject(s) - optical tweezers , brownian motion , trapping , sampling (signal processing) , stiffness , physics , detector , low frequency , optics , acoustics , statistical physics , quantum mechanics , thermodynamics , ecology , astronomy , biology
The Brownian motion analysis is a preferable method to investigate the trapping stiffness of optical tweezers system because of its convenience and simplicity. However, there would be obvious deviation if the detector's response frequency or sampling frequency is low. Such problems are discussed and a solution is brought forward in this article.