Acousto-optic k-space Filtering of Optical Beams

Konstantin Yushkov

2022

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.

Paper Citation

in Harvard Style

Yushkov K. (2022). Acousto-optic k-space Filtering of Optical Beams. In Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-554-8, pages 69-75. DOI: 10.5220/0010972700003121

in Bibtex Style

@conference{photoptics22,
author={Konstantin Yushkov},
title={Acousto-optic k-space Filtering of Optical Beams},
booktitle={Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2022},
pages={69-75},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010972700003121},
isbn={978-989-758-554-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 10th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Acousto-optic k-space Filtering of Optical Beams
SN - 978-989-758-554-8
AU - Yushkov K.
PY - 2022
SP - 69
EP - 75
DO - 10.5220/0010972700003121