Point spread function shaping using geometric analysis

Andrew Rafael Bañas*, Stephen Daedalus Separa, Einstom Engay, Jesper Glückstad

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We present a method for shaping point spread functions (PSF) into simple geometric shapes that are free of noise or speckles. The derived phase distributions are intended for typical 2f setups used for reading out computer generated holograms (CGH). Used in conjunction with existing CGH techniques for spot distributions the shaped PSFs can similarly be distributed on a 3D working volume. The PSF’s contiguous intensity and phase make them beneficial in many applications such as photo-stimulation, optical manipulation, multi-photon excitation and laser materials processing. This manuscript presents the derivations of the phase functions and their experimental demonstration.

Original languageEnglish
JournalOptics Communications
Volume427
Pages (from-to)522–27
ISSN0030-4018
DOIs
Publication statusPublished - 2018

Keywords

  • Laser beam shaping
  • Digital holography
  • Fourier optics
  • Phase-only modulation
  • Spatial light modulators

Cite this

Bañas, Andrew Rafael ; Separa, Stephen Daedalus ; Engay, Einstom ; Glückstad, Jesper. / Point spread function shaping using geometric analysis. In: Optics Communications. 2018 ; Vol. 427. pp. 522–27 .
@article{3a5fb8f534b842f89b208c7c824aee99,
title = "Point spread function shaping using geometric analysis",
abstract = "We present a method for shaping point spread functions (PSF) into simple geometric shapes that are free of noise or speckles. The derived phase distributions are intended for typical 2f setups used for reading out computer generated holograms (CGH). Used in conjunction with existing CGH techniques for spot distributions the shaped PSFs can similarly be distributed on a 3D working volume. The PSF’s contiguous intensity and phase make them beneficial in many applications such as photo-stimulation, optical manipulation, multi-photon excitation and laser materials processing. This manuscript presents the derivations of the phase functions and their experimental demonstration.",
keywords = "Laser beam shaping, Digital holography, Fourier optics, Phase-only modulation, Spatial light modulators",
author = "Ba{\~n}as, {Andrew Rafael} and Separa, {Stephen Daedalus} and Einstom Engay and Jesper Gl{\"u}ckstad",
year = "2018",
doi = "10.1016/j.optcom.2018.06.068",
language = "English",
volume = "427",
pages = "522–27",
journal = "Optics Communications",
issn = "0030-4018",
publisher = "Elsevier",

}

Point spread function shaping using geometric analysis. / Bañas, Andrew Rafael; Separa, Stephen Daedalus; Engay, Einstom; Glückstad, Jesper.

In: Optics Communications, Vol. 427, 2018, p. 522–27 .

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Point spread function shaping using geometric analysis

AU - Bañas, Andrew Rafael

AU - Separa, Stephen Daedalus

AU - Engay, Einstom

AU - Glückstad, Jesper

PY - 2018

Y1 - 2018

N2 - We present a method for shaping point spread functions (PSF) into simple geometric shapes that are free of noise or speckles. The derived phase distributions are intended for typical 2f setups used for reading out computer generated holograms (CGH). Used in conjunction with existing CGH techniques for spot distributions the shaped PSFs can similarly be distributed on a 3D working volume. The PSF’s contiguous intensity and phase make them beneficial in many applications such as photo-stimulation, optical manipulation, multi-photon excitation and laser materials processing. This manuscript presents the derivations of the phase functions and their experimental demonstration.

AB - We present a method for shaping point spread functions (PSF) into simple geometric shapes that are free of noise or speckles. The derived phase distributions are intended for typical 2f setups used for reading out computer generated holograms (CGH). Used in conjunction with existing CGH techniques for spot distributions the shaped PSFs can similarly be distributed on a 3D working volume. The PSF’s contiguous intensity and phase make them beneficial in many applications such as photo-stimulation, optical manipulation, multi-photon excitation and laser materials processing. This manuscript presents the derivations of the phase functions and their experimental demonstration.

KW - Laser beam shaping

KW - Digital holography

KW - Fourier optics

KW - Phase-only modulation

KW - Spatial light modulators

U2 - 10.1016/j.optcom.2018.06.068

DO - 10.1016/j.optcom.2018.06.068

M3 - Journal article

VL - 427

SP - 522

EP - 527

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

ER -