| 书目名称 | Optically Trapped Microspheres as Sensors of Mass and Sound | | 副标题 | Brownian Motion as B | | 编辑 | Logan Edward Hillberry | | 视频video | | | 概述 | Gives an accessible overview of the theory, the technology, and the history of the problem being investigated.Nominated by the University of Texas at Austin, USA, as an outstanding Ph.D. thesis.Presen | | 丛书名称 | Springer Theses | | 图书封面 |  | | 描述 | .This thesis makes significant advances in the use of microspheres in optical traps as highly precise sensing platforms.While optically trapped microspheres have recently proven their dominance in aqueous and vacuum environments, achieving state-of-the-art measurements of miniscule forces and torques, their sensitivity to perturbations in air has remained relatively unexplored. This thesis shows that, by uniquely operating in air and measuring its thermally-fluctuating instantaneous velocity, an optically trapped microsphere is an ultra-sensitive probe of both mass and sound. The mass of the microsphere is determined with similar accuracy to competitive methods but in a fraction of the measurement time and all while maintaining thermal equilibrium, unlike alternative methods. As an acoustic transducer, the air-based microsphere is uniquely sensitive to the velocity of sound, as opposed to the pressure measured by a traditional microphone. By comparison to state-of-the-art commercially-available velocity and pressure sensors, including the world’s smallest measurement microphone, the microsphere sensing modality is shown to be both accurate and to have superior sensitivity at high f | | 出版日期 | Book 2023 | | 关键词 | Inertial mass sensing; Sound detection; Optical trapping; High-precision sensing; Mie scattering; Optical | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-031-44332-9 | | isbn_softcover | 978-3-031-44334-3 | | isbn_ebook | 978-3-031-44332-9Series ISSN 2190-5053 Series E-ISSN 2190-5061 | | issn_series | 2190-5053 | | copyright | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl |
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发表于 2025-3-21 18:32:34
