Optimal synthesis of double-phase computer generated holograms using a phase-only spatial light modulator with grating filter

Song, Hoon; Sung, Geeyoung; Choi, Su-Jin; Won, Kanghee; Lee, Hong-Seok; Kim, Hwi

doi:10.1364/oe.20.029844

Cited by 80 publications

(29 citation statements)

References 11 publications

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“…(4-7), while the even rows are compensated by applying the error diffusion process in the opposite direction (from right to left), as given in Eqs. (9)(10)(11)(12) below. The spatial relation between pixel ; j j u v P and its neighborhood pixels is illustrated in Fig.…”

Section: ( )mentioning

confidence: 99%

“…Likewise, a complex hologram can be simulated with a double phase-only hologram [6], and displayed with a pair of phase-only SLMs. In some implementation, the pair of SLMs is replaced by a single device, displaying a pair of holograms and subsequently merging the reconstructed wavefront through a grating [7][8][9][10]. Although such approach is effective, the optical setups are rather complicated.…”

Section: Introductionmentioning

confidence: 99%

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Novel method for converting digital Fresnel hologram to phase-only hologram based on bidirectional error diffusion

Tsang¹,

Poon²

2013

Opt. Express

148

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Abstract:We report a novel and fast method for converting a digital, complex Fresnel hologram into a phase-only hologram. Briefly, the pixels in the complex hologram are scanned sequentially in a row by row manner. The odd and even rows are scanned from opposite directions, constituting to a bidirectional error diffusion process. The magnitude of each visited pixel is forced to be a constant value, while preserving the exact phase value. The resulting error is diffused to the neighboring pixels that have not been visited before. The resulting novel phase-only hologram is called the bidirectional error diffusion (BERD) hologram. The reconstructed image from the BERD hologram exhibits high fidelity as compared with those obtained with the original complex hologram.

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Section: ( )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel method for converting digital Fresnel hologram to phase-only hologram based on bidirectional error diffusion

Tsang¹,

Poon²

2013

Opt. Express

148

View full text Add to dashboard Cite

show abstract

“…The reconstructed image will be disturbed by speckle noise introduced by the coherence of laser beam. Some approaches have been proposed to reduce speckle noise, like time-averaging effect [17,18], pixel separate method [19,20], short-coherent light [21], complex modulation [22,23].…”

Section: Introductionmentioning

confidence: 99%

Dynamic holographic three-dimensional projection based on liquid crystal spatial light modulator and cylindrical fog screen

Zeng

Zheng

et al. 2015

Opt Rev

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A dynamic holographic three-dimensional (3D) projection based on phase-only liquid crystal spatial light modulator (LC-SLM) and cylindrical fog 3D screen is introduced. Sequential kinoforms of a 3D real existing object are calculated from sixty viewing angles using the slice-based fresnel diffraction algorithm. To suppress speckle noise of reconstructed images, sub-kinoforms for each viewing angle are calculated by adding dynamic pseudorandom initial phase factor into each object plane. The sequential kinoforms are reconstructed by a holographic reconstruction system based on phase-only LC-SLM. A specially designed cylindrical fog 3D screen is used as the scattered carrying medium to project the dynamic 3D images. Through our holographic 3D projection system, a vivid dynamic holographic reconstructed projection image can be observed by some observers at the same time.

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“…Another method for complex modulation is called the double-phase hologram (DPH) [14] applications based on the double-phase method have been proposed to contrive more desirable complex reconstruction [15,16] . Song et al proposed an optical system for synthesizing double-phase complex CGHs using a phase-only SLM and a phase grating filter [17] . It should be noted that, although the diffraction efficiency is approximately equal to the off-axis method using a phase-only hologram [18] , the above DPHs suffer loss of half of the spatial resolution in the output complex field.…”

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confidence: 99%

Accurate complex modulation by the iterative spatial cross-modulation method

Chang

Xia

2017

Chin. Opt. Lett.

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A method is proposed to realize accurate spatial complex modulation based on the spatial cross-modulation method (SCMM) via a phase-only spatial light modulator. The conventional SCMM cannot achieve high quality reconstruction, especially when the diffusion ratio is small. We propose an iterative algorithm in the calculation of a computer-generated hologram to implement accurate complex modulation. It enables us to generate a high quality reconstruction under a small diffusion ratio. The feasibility of the method is verified by both a numerical simulation and an optical experiment.

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Optimal synthesis of double-phase computer generated holograms using a phase-only spatial light modulator with grating filter

Cited by 80 publications

References 11 publications

Novel method for converting digital Fresnel hologram to phase-only hologram based on bidirectional error diffusion

Novel method for converting digital Fresnel hologram to phase-only hologram based on bidirectional error diffusion

Dynamic holographic three-dimensional projection based on liquid crystal spatial light modulator and cylindrical fog screen

Accurate complex modulation by the iterative spatial cross-modulation method

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