The sonic screwdriver: a model system for study of wave angular momentum

Gabriel C. Spalding, Alex Volovick, Zhengyi Yang, Christine Démoré, Michael P. MacDonald, Sandy Cochran

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    When samples of interest are small enough, even the relatively weak forces and torques associated with light can be sufficient for mechanical manipulation, can offer extraordinary position control, and can measure interactions with resolution three orders of magnitude better than atomic force microscopy. However, as the components of interest grow to slightly larger length scales (which may yet be of interest for microfluidic, "lab-on-a-chip" technologies and for research involving biomedical imaging), other approaches gain strength. This paper includes discussion of the angular momentum carried by sonic beams that we have implemented both to levitate and controllably rotate disks as large as four inches across. Discussion of such acoustic beams complements the discussion of the angular momentum carried by light and, by further analogy, how we view stationary states discussed in quantum mechanics. Hence, a primary use of the sonic screwdriver is as a model system, although these beams are useful for a variety of other reasons as well (not least of which is aberration correction for ultrasonic array systems). Methods, including the use of holographically structured fields, are discussed.
    Original languageEnglish
    Title of host publicationOptical Trapping and Optical Micromanipulation VIII
    EditorsKishan Dholakia, Gabriel C. Spalding
    Place of PublicationBellingham
    PublisherSPIE-International Society for Optical Engineering
    ISBN (Print)9780819487070
    DOIs
    Publication statusPublished - 2011
    EventSPIE Optics+Photonics 2011: Optical Trapping and Optical Micromanipulation VIII - San Diego Marriott Marquis and Marina, San Diego Convention Center, San Diego, United States
    Duration: 21 Aug 201125 Aug 2011
    http://spie.org/x57032.xml

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume8097

    Conference

    ConferenceSPIE Optics+Photonics 2011: Optical Trapping and Optical Micromanipulation VIII
    CountryUnited States
    CitySan Diego
    Period21/08/1125/08/11
    Internet address

    Fingerprint Dive into the research topics of 'The sonic screwdriver: a model system for study of wave angular momentum'. Together they form a unique fingerprint.

  • Student Theses

    Optical and acoustic beam shaping for imaging and manipulation

    Author: Yang, Z., 2014

    Supervisor: MacDonald, M. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy

    File

    Cite this

    Spalding, G. C., Volovick, A., Yang, Z., Démoré, C., MacDonald, M. P., & Cochran, S. (2011). The sonic screwdriver: a model system for study of wave angular momentum. In K. Dholakia, & G. C. Spalding (Eds.), Optical Trapping and Optical Micromanipulation VIII [80971N ] (Proceedings of SPIE; Vol. 8097). SPIE-International Society for Optical Engineering. https://doi.org/10.1117/12.897419