Acousto-optic k-space Filtering of Optical Beams

Konstantin B. Yushkov

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Paper

Acousto-optic k-space Filtering of Optical Beams

Topics: Laser Spectroscopy and Microscopy; Optical Instrumentation and Signal Processing; Photonic and Optoelectronic Materials and Devices

In Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology PHOTOPTICS - Volume 1, 69-75, 2022

Author: Konstantin B. Yushkov

Affiliation: National University of Science and Technology “MISIS”, 4 Leninsky Prospekt, Moscow 119049, Russia

Keyword(s): Acousto-optics, Tunable Filter, Spatial Filter, Phase Imaging, Optical Trapping.

Abstract: Acousto-optic tunable filters (AOTFs) can be used for spatial filtering of optical beams. A noncollinear AOTF has a tunable ring-shaped transfer function determined by geometry of the refractive index surface in a uniaxial crystal. Different axially symmetric transfer functions can be synthesized using multi-frequency ultrasonic signals. In the report, theory of AOTF-based spatial filtering of optical beams is summarized. Specific transfer function of the AOTF — bandpass spatial frequency filter — enables hyperspectal phase imaging in dark-field mode using incoherent illumination. Operation of a dynamic ring-shaped optical trap based on the noncollinear AOTF is demonstrated.

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Paper citation in several formats:

Yushkov, K. (2022). Acousto-optic k-space Filtering of Optical Beams. In Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-758-554-8; ISSN 2184-4364, SciTePress, pages 69-75. DOI: 10.5220/0010972700003121

@conference{photoptics22,
author={Konstantin B. Yushkov.},
title={Acousto-optic k-space Filtering of Optical Beams},
booktitle={Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2022},
pages={69-75},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010972700003121},
isbn={978-989-758-554-8},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Acousto-optic k-space Filtering of Optical Beams
SN - 978-989-758-554-8
IS - 2184-4364
AU - Yushkov, K.
PY - 2022
SP - 69
EP - 75
DO - 10.5220/0010972700003121
PB - SciTePress