This readme.txt file was generated on 2022-09-22 by Recommended citation for the data: Stein, Matthew; Keller, Sam; Luo, Yujie; Ilic, Ognjen. (2022). Supporting data for "Shaping contactless radiation forces through anomalous acoustic scattering". Retrieved from the Data Repository for the University of Minnesota. https://hdl.handle.net/11299/241658. ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset: Supporting data for "Shaping contactless radiation forces through anomalous acoustic scattering" 2. Author Information Author Contact: Ognjen Ilic (ilic@umn.edu) Name: Matthew Stein Institution: University of Minnesota, Twin Cities Email: stei1713@umn.edu Name: Sam Keller Institution: University of Minnesota, Twin Cities Email: kell2521@umn.edu Name: Yujie Luo Institution: University of Minnesota, Twin Cities Email: luoxx416@umn.edu Name: Ognjen Ilic Institution: University of Minnesota, Twin Cities Email: ilic@umn.edu ORCID: 0000-0001-8651-7438 3. Date published or finalized for release: 2022-09-15 4. Date of data collection (single date, range, approximate date): 2021-01-01 to 2022-09-01 5. Geographic location of data collection (where was data collected?): University of Minnesota, Twin Cities 6. Information about funding sources that supported the collection of the data: Minnesota Robotics Institute, Air Force Office of Scientific Research (AFOSR) 7. Overview of the data (abstract): Waves impart momentum and exert force on obstacles in their path. The transfer of wave momentum is a fundamental mechanism for contactless manipulation, yet the rules of conventional scattering intrinsically limit the radiation force based on the shape and the size of the manipulated object. Here, we show that this intrinsic limit can be broken for acoustic waves with subwavelength-structured surfaces (metasurfaces), where the force becomes controllable by the arrangement of surface features, independent of the object's overall shape and size. Harnessing such anomalous metasurface scattering, we demonstrate complex actuation phenomena: self-guidance, where a metasurface object is autonomously guided by an acoustic wave, and tractor beaming, where a metasurface object is pulled by the wave. Our results show that bringing metasurface physics of acoustic waves, and its full arsenal of tools, to the domain of mechanical manipulation opens new frontiers in contactless actuation and enables diverse actuation mechanisms that are beyond the limits of traditional wave-matter interactions. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: Attribution-NonCommercial-NoDerivs 3.0 United States (http://creativecommons.org/licenses/by-nc-nd/3.0/us/) 2. Links to publications that cite or use the data: TBD 3. Was data derived from another source? No 4. Terms of Use: Data Repository for the U of Minnesota (DRUM) By using these files, users agree to the Terms of Use. https://conservancy.umn.edu/pages/drum/policies/#terms-of-use --------------------- DATA & FILE OVERVIEW --------------------- File List A. Filename: Fig2.zip Short description: Supporting data for Figure 2e and 2f. Fig. 2e: Plot shows the displacement of the metasurface (dataset column 2) versus time (dataset column 1). Fig. 2f: Plot of the mean metasurface displacement and standard deviation (dataset column 2, column 3) versus voltage (dataset column 1). B. Filename: Fig3.zip Short description: Supporting data for Figure 3c and 3d. Fig. 3c: Plot of the metasurface force (dataset column 2) versus metasurface position (dataset column 1). Fig. 3d: Plot showing metasurface deflection ("Fig3d-metasurface.csv" dataset column 2) versus time ("Fig3d-metasurface.csv" dataset column 1) in response to changing source position ("Fig3d-source.csv" dataset column 2) versus time ("Fig3d-source.csv" dataset column 1) C. Filename: Fig4.zip Short description: Supporting data for Figure 4b and 4d. Fig. 4b: Plot shows the metasurface force (dataset column 2) versus the incident angle of the wave (dataset column 1). Fig. 4d: Plot of the mean metasurface displacement and standard deviation (dataset column 2, column 3) versus the incident angle of the source (dataset column 1). 2. Relationship between files: NA -------------------------- METHODOLOGICAL INFORMATION -------------------------- Methods for generating and processing the data are described in the manuscript.