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Related Experiment Video

Updated: Dec 21, 2025

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution

Published on: May 27, 2013

Acousto-holographic optical tweezers.

R Bola, D Treptow, A Marzoa

|May 16, 2020

Summary

Acousto-optic deflectors create permanent optical traps using encoded radio signals, enabling faster switching and independent control of multiple trap arrays for advanced research applications.

Area of Science:

Optics and Photonics
Biophysics
Materials Science

Background:

Acousto-optic deflectors (AODs) enable multiple optical trap creation via time-sharing, but these traps are transient.
Existing methods struggle with permanent trap generation and independent control of multiple trap groups.

Purpose of the Study:

To demonstrate the creation of multiple, permanent optical traps using AODs.
To explore the use of encoded radio frequency signals for advanced AOD control.
To investigate enhanced capabilities for optical trapping applications.

Main Methods:

Utilizing AODs driven by specially encoded radio frequency (RF) signals.
Generating complex acoustic signals to function as super-fast spatial light modulators.
Implementing techniques for independent control of multiple optical trap groups.

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Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

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Last Updated: Dec 21, 2025

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution

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Published on: May 27, 2013

Stretching Short Sequences of DNA with Constant Force Axial Optical Tweezers

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Main Results:

Successfully created multiple, permanent optical traps using AODs.
Demonstrated the ability to generate static optical trap arrays switchable at kilohertz (kHz) rates.
Achieved independent control over individual trap groups within the arrays.

Conclusions:

Acousto-optic deflectors driven by encoded RF signals offer a novel method for generating permanent, controllable optical traps.
This technique significantly enhances the capabilities of optical tweezers, particularly for applications requiring precise force and position measurements with improved frequency bandwidth.
The ability to switch trap arrays at kHz rates opens new possibilities in manipulating multiple objects simultaneously.