Holographic memory without reference beam

Shoydin, S. A.

doi:10.3103/s1060992x16040056

Cited by 6 publications

(4 citation statements)

References 1 publication

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“…Although experimental demonstrations have focused on the utilization of visible light, the SSM method can be particularly useful when the choice of optical components is limited, such as in X-ray and Terahertz regimes. Furthermore, by utilizing the multispectral transmission matrix [93] and the time-resolved transmission matrix [94], new possibilities in multi-spectral imaging, spectroscopy, ultrafast imaging, and holographic memory are expected [95][96][97][98]. The SSM can also be extended to aperiodic structures [99], diffusive surfaces [100], and multi-mode fibres that generate spatially uncorrelated speckle fields.…”

Section: Discussionmentioning

confidence: 99%

Speckle-Correlation Scattering Matrix Approaches for Imaging and Sensing through Turbidity

Baek

Lee

et al. 2020

Sensors

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The development of optical and computational techniques has enabled imaging without the need for traditional optical imaging systems. Modern lensless imaging techniques overcome several restrictions imposed by lenses, while preserving or even surpassing the capability of lens-based imaging. However, existing lensless methods often rely on a priori information about objects or imaging conditions. Thus, they are not ideal for general imaging purposes. The recent development of the speckle-correlation scattering matrix (SSM) techniques facilitates new opportunities for lensless imaging and sensing. In this review, we present the fundamentals of SSM methods and highlight recent implementations for holographic imaging, microscopy, optical mode demultiplexing, and quantification of the degree of the coherence of light. We conclude with a discussion of the potential of SSM and future research directions.

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Section: Discussionmentioning

confidence: 99%

Speckle-Correlation Scattering Matrix Approaches for Imaging and Sensing through Turbidity

Baek

Lee

et al. 2020

Sensors

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“…Такая поста-новка задачи в передаче радиосигналов в доступной литературе не известна. Однако в голографии она встречается не редко и решается сравнительно легко [17]. Как показано в [16], именно девиация пространственных частот на голограмме несёт информацию о фазе и амплитуде регистрируемого объекта.…”

Section: постановка задачиunclassified

Holograms of a 3D object synthesized at the receiving end of the communication channel in Dot Matrix technology

Shoydin¹,

Pazoev²,

Smyk

et al. 2022

Computer Optics

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The manuscript presents experimental results on the recording and restoration of 3D holographic frames suitable for transmitting 3D holographic images with the frame rate required for TV images and the resolution of the Full HD standard and higher. The method is based on the previously proposed technology for recording and transmitting a depth map and surface texture of the holographic object over the communication channel and digital synthesis of the hologram at the receiving end of the communication channel. The obtained result reduces the frequency band required for the transmission of 3D holographic information, similar to SSB technology, since the carrier spatial frequency of the hologram in this method is not transmitted through the communication channel, but is synthesized in the hologram already at its receiving end. Experimental results of hologram synthesis at the receiving end of the communication channel in DotMatrix technology are presented. The method considered in this manuscript is convenient for multiplexing 3D images, transferring them from one part of the electromagnetic spectrum to another, as well as for creating hyperspectral images. The work implements the technology of a holographic phototelegraph, which, when using high-speed dynamic holographic monitors, can solve the problems of creating 3D TV and augmented reality.

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“…Owing to the high resolution, the order of magnitude of the amount of data N that can be written to such a hologram [2,3] can be assessed with Equation (2). Further practical studies [5][6][7][8][9][10][11][12][13] made significant allowances which were related, on the one hand, to the constraints on data density in a holographic storage device and, on the other hand, to finding ways to increase recording density. Potential data recording capacity n in a hologram can be estimated approximately according to Equation ( 2), based on [5][6][7][8][9][10], from which it can be defined as the number of the points the size of which is defined by the Airy disk diameter Equation (2):…”

Section: Density Of Recorded Holographic Informationmentioning

confidence: 99%

Transmission of 3D Holographic Information via Conventional Communication Channels and the Possibility of Multiplexing in the Implementation of 3D Hyperspectral Images

Shoydin¹,

Pazoev²

2021

Photonics

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This paper shows the possibility of transmitting 3D holographic information in real time with a TV frame rate over conventional radio channels by transmitting two two-dimensional signals in two image modes: depth map and surface texture of the object (mask + texture). The authors point out that it is similar to compression through eliminating the carrier and it is inherently similar to SSB (single-sideband modulation) but has higher resolution ability in reconstructing 3D images. It is also shown that such technology for transmitting 3D holographic information is in good agreement with the tasks of both aggregating and multiplexing 3D images when they are transferred from one part of the electromagnetic spectrum of radiation to another and the creation of hyperspectral 3D images.

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Holographic memory without reference beam

Cited by 6 publications

References 1 publication

Speckle-Correlation Scattering Matrix Approaches for Imaging and Sensing through Turbidity

Speckle-Correlation Scattering Matrix Approaches for Imaging and Sensing through Turbidity

Holograms of a 3D object synthesized at the receiving end of the communication channel in Dot Matrix technology

Transmission of 3D Holographic Information via Conventional Communication Channels and the Possibility of Multiplexing in the Implementation of 3D Hyperspectral Images

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