Generation of enhanced optimal sampled phase-only hologram

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with host publication)peer-review

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Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publicationHolography, Diffractive Optics, and Applications XII
EditorsChanghe Zhou, Ting-Chung Poon, Liangcai Cao, Hiroshi Yoshikawa
PublisherSPIE
ISBN (Electronic)978-1-5106-5703-8
ISBN (Print)978-1-5106-5702-1
Publication statusPublished - Dec 2022

Publication series

NameProceedings of SPIE
Volume12318
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

TitleThe International Society for Optics and Photonics/Chinese Optical Society (SPIE/COS) Photonics Asia 2022
LocationOnline
PlaceChina
Period5 - 11 December 2022

Abstract

Optimal sampling method is effective in generating phase-only hologram. In this approach, the intensity of a source image is multiplied with an optimal sampling lattice, and converted into a hologram. Subsequently, the phase component of the hologram is retained as a phase-only hologram. The optimal sampling lattice is optimized through direct binary search so that the reconstructed image is closest to a given training image. A hologram generated with this method is known as an optimal sampled phase-only hologram (OSPOH). The reconstructed image of an OSPOH is generally good, but its quality cannot be further improved by extending the optimization process. In this paper, an enhancement on the reconstructed image of OSPOH through time-division filtering is presented. Experiment results revealed that the proposed method can lead to significant enhancement on the reconstructed image.

Research Area(s)

  • phase-only hologram, sampled phase-only hologram, optimal sampled phase-only hologram, grid-cross down-sampling, direct binary search, time-division filtering

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. Research Unit(s) information for this record is based on his previous affiliation.

Citation Format(s)

Generation of enhanced optimal sampled phase-only hologram. / Tsang, P. W. M.
Holography, Diffractive Optics, and Applications XII. ed. / Changhe Zhou; Ting-Chung Poon; Liangcai Cao; Hiroshi Yoshikawa. SPIE, 2022. 123181W (Proceedings of SPIE; Vol. 12318).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with host publication)peer-review