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Periodic Modulations of Optical Tweezers Near Solid-State Membranes

Authors

  • Gautam V. Soni,

    1. Delft University of Technology, Faculty of Applied Sciences, Kavli Institute of NanoScience, Department of Bionanoscience, Lorentzweg 1, 2628 CJ Delft, The Netherlands
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Magnus P. Jonsson,

    1. Delft University of Technology, Faculty of Applied Sciences, Kavli Institute of NanoScience, Department of Bionanoscience, Lorentzweg 1, 2628 CJ Delft, The Netherlands
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Cees Dekker

    Corresponding author
    1. Delft University of Technology, Faculty of Applied Sciences, Kavli Institute of NanoScience, Department of Bionanoscience, Lorentzweg 1, 2628 CJ Delft, The Netherlands
    • Delft University of Technology, Faculty of Applied Sciences, Kavli Institute of NanoScience, Department of Bionanoscience, Lorentzweg 1, 2628 CJ Delft, The Netherlands.
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Abstract

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Optical tweezers operated near solid-state membranes show unexplained periodic modulations in the optical trap position. An experimental study of the oscillations is presented, as well as optical simulations based on the finite-difference time-domain method, providing insight into the underlying interference phenomenon. This work provides a complete description as well as a solution to the enduring problem of modulations in optical traps near solid-state membranes.

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