Two-dimensional shift-orthogonal random-interleaving phase-code multiplexing for holographic data storage

Li, Jianhua; He, Ming-Ming; Zheng, Tianxiang; Cao, Liangcai; He, Qingsheng; Jin, Guofan

doi:10.1016/j.optcom.2011.08.008

Cited by 8 publications

(4 citation statements)

References 36 publications

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“…After deriving the minimum-order OPOM, the solution of any higher-order OPOM can be obtained by combining it with the Hadamard matrices, leveraging their orthogonality. Utilizing the recursive Kronecker product, the expression for OPOM2m×4m with an orthogonal combinations number of 4m is as follows: OPOM OPOM H (14) where Hm×m denotes a Hadamard matrix with element size m×m, which is written as: As depicted in Fig. 1, within the basic OPOM2×4 extension layer, using OPOM2×4 as the minimum unit involves replicating a rectangle with a side length of m (where m is an even number) to generate an extension layer.…”

Section: S P S P S P S P Opom S P S P S P S P (13)mentioning

confidence: 99%

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Optical polarized orthogonal matrix

Tan,

Zheng,

Tan

et al. 2024

Preprint

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Orthogonal matrices have become indispensable tools in various fields, including coding, signal processing, and light field regulation. Traditionally, it has been assumed that orthogonal matrices consist of one-dimensional elements capable of modulating only amplitude or phase information. However, light waves have another critical dimension-polarization. Existing polarization orthogonal combinations have faced limitations, with a maximum pairwise orthogonal combination of 2 mapped to the basic Poincaré Sphere, hindering the regulation of polarization. Despite these challenges, we demonstrate the feasibility of constructing Optical Polarized Orthogonal Matrices (OPOMs) without restricted orthogonal numbers. This non-square matrix composed of polarization unit vectors, shows promise for multi-channel information retrieval and dynamic image display. The versatility of OPOM can be extended to various fields such as optical communication, optical storage, logic devices, anti-counterfeiting, and optical encryption.

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Section: S P S P S P S P Opom S P S P S P S P (13)mentioning

confidence: 99%

“…Current orthogonal matrices excel in amplitude and phase modulation [13][14][15][16][17][18] but face limitations in polarization modulation. In contrast, the availability of mutually orthogonal polarized light pairs is extremely limited, with only one such pair identifiable under the basic Poincaré Sphere.…”

Section: Introductionmentioning

confidence: 99%

Optical polarized orthogonal matrix

Tan,

Zheng,

Tan

et al. 2024

Preprint

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“…[ 1 ] Thus, optical storage density can only be linearly improved, in the classical limit, by reducing the wavelength of light, and is more practically limited by the availability of laser sources and refl ective, or photoactive, media in that band. Many techniques have been investigated to overcome this problem, [2][3][4][5][6][7][8] among which increasing the bit density of each storage cell, or pit, is particularly promising for its potential to increase total storage density, even at low cell densities, by introducing a new recording dimension. In this regard, DNA oligomers have been studied extensively to achieve high storage density.…”

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confidence: 99%

Thousand‐Fold Increase in Optical Storage Density by Polychromatic Address Multiplexing on Self‐Assembled DNA Nanostructures

Mottaghi

Dwyer

2013

Advanced Materials

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Optical storage techniques are among the oldest and most commonly employed to store large volumes of data for archival and data transport purposes, and are dependent on advances in materials to maintain steady improvements in storage density. Further, such applications can leverage write-once-read-many storage technologies to guarantee transactional consistency and security against data tampering, an increasingly important aspect of data management, for mass storage transactional memory. However, the density of optical media is constrained by the diffraction limit that imposes a classical spatial resolution of approximately λ /2, where λ is the wavelength of light used to interrogate the media. [ 1 ] Thus, optical storage density can only be linearly improved, in the classical limit, by reducing the wavelength of light, and is more practically limited by the availability of laser sources and refl ective, or photoactive, media in that band. Many techniques have been investigated to overcome this problem, [2][3][4][5][6][7][8] among which increasing the bit density of each storage cell, or pit, is particularly promising for its potential to increase total storage density, even at low cell densities, by introducing a new recording dimension. In this regard, DNA oligomers have been studied extensively to achieve high storage density. [ 9 ] Building on the potential for DNA to achieve vast enhancements in storage density, we demonstrate a novel retrieval technique which we call polychromatic address multiplexing (PAM) to access multiple bits stored in the same cell. By exploiting nanoscale fl uorescence-based storage elements, PAM enables storage of hundreds of bits in a single cell. In this fashion, higher storage densities beyond the diffraction limit are achieved with this technique, which can also be incorporated into conventional optical-storage technologies.A conceptual schematic of a PAM disc is illustrated in Figure 1 a. A PAM disc can have several physical layers of storage. Each physical layer consists of many spatially resolved cells each of which contains a large number of storage elements. Each cell stores several logical words, that is, a collection of bits associated with a single address. A word address is a unique combination of incident excitation colors (wavelengths), for example, generated by an integrated LED or laser array, which activates the subset of storage elements in the cell that collectively store the word value corresponding to that address. Consequently, the activated storage elements cause a fl uorescence increase which is eventually translated to the binary value of the addressed word.The storage element in PAM, which we call a PEPE (photoerasable PAM element), operates based on Förster resonance energy transfer (FRET) and is composed of a set of fl uorophores placed on a grid-like DNA nanostructure. The simplest form of a PEPE, which is called an ER-PEPE, (illustrated in Figure 1 b) is a UV-disruptable FRET-pair in which the donor and acceptor molecules (E and R) act as the excitatio...

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“…Thus, optical storage density can only be linearly improved, in the classical limit, by reducing the wavelength of light, and is more practically limited by the availability of laser sources and reflective, or photoactive, media in that band. Many techniques have been investigated to overcome this problem,2–8 among which increasing the bit density of each storage cell, or pit, is particularly promising for its potential to increase total storage density, even at low cell densities, by introducing a new recording dimension. In this regard, DNA oligomers have been studied extensively to achieve high storage density 9…”

mentioning

confidence: 99%

Ultra‐low‐angle microtomy to back up S‐SIMS molecular depth profiling with C₆₀⁺ and Bi_n⁺ for the nanoscale analysis of high‐tech industrial materials

Mondt

Vercammen

Dardenne

et al. 2011

Surface & Interface Analysis

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Polyatomic projectiles such as C 60+ have been used for molecular sputter depth profiling in time-of-flight static secondary ion mass spectrometry (ToF-S-SIMS). However, the practical application for nanoscale analysis problems still depends on the likely change of secondary ion yield with depth. Therefore, ultra-low-angle microtomy ( The results show that ULAM is a valuable tool to complement the exploratory use of direct sputter depth profiling. To the best of our knowledge, this feasibility study is the first to show the experimental verification of molecular C 60 + sputter depth profiles.

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Two-dimensional shift-orthogonal random-interleaving phase-code multiplexing for holographic data storage

Cited by 8 publications

References 36 publications

Optical polarized orthogonal matrix

Optical polarized orthogonal matrix

Thousand‐Fold Increase in Optical Storage Density by Polychromatic Address Multiplexing on Self‐Assembled DNA Nanostructures

Ultra‐low‐angle microtomy to back up S‐SIMS molecular depth profiling with C₆₀⁺ and Bi_n⁺ for the nanoscale analysis of high‐tech industrial materials

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Two-dimensional shift-orthogonal random-interleaving phase-code multiplexing for holographic data storage

Cited by 8 publications

References 36 publications

Optical polarized orthogonal matrix

Optical polarized orthogonal matrix

Thousand‐Fold Increase in Optical Storage Density by Polychromatic Address Multiplexing on Self‐Assembled DNA Nanostructures

Ultra‐low‐angle microtomy to back up S‐SIMS molecular depth profiling with C60+ and Bin+ for the nanoscale analysis of high‐tech industrial materials

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Product

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Ultra‐low‐angle microtomy to back up S‐SIMS molecular depth profiling with C₆₀⁺ and Bi_n⁺ for the nanoscale analysis of high‐tech industrial materials