Volume holographic storage using sync-angular multiplexing by rotating material in thick photopolymer

Wang, Jian; Luo, Shiming

doi:10.1016/j.optlastec.2022.108295

Cited by 5 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unlike the traditional storage methods with unit systems, it can process information in pages, which exhibits the advantages of high storage density, fast data transmission and fast addressing rate. The biggest feature of this technology is the excellent storage density, which can solve the technical bottleneck of improving the storage density, and it has great competitiveness in the application of information storage [ 8 , 9 , 10 ]. The selection of recording medium is one of the main factors affecting the holographic performance.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Investigations of Diffraction Characteristics Influenced by Holographic Reciprocity Effect in PQ/PMMA Polymers

Liu

Sun

2023

Polymers

View full text Add to dashboard Cite

We propose the holographic reciprocity effect (HRE) to describe the relationship between the exposure duration (ED) and the growth rate of diffraction efficiency (GRoDE) in volume holographic storage. The HRE process is investigated experimentally and theoretically in order to avoid the diffraction attenuation. Herein, introducing the medium absorption, we present a comprehensive probabilistic model to describe the HRE. PQ/PMMA polymers are fabricated and investigated to reveal the influence of HRE on the diffraction characteristics through two recording approaches: pulsed exposure with nanosecond (ns) level and continuous wave (CW) exposure at the millisecond (ms) level. We obtain the holographic reciprocity matching (HRM) range of ED in PQ/PMMA polymers with 10−6~102 s level and improve the response time to microsecond (μs) order with no diffraction deficiency. This work can promote the application of volume holographic storage in high-speed transient information accessing technology.

show abstract

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Investigations of Diffraction Characteristics Influenced by Holographic Reciprocity Effect in PQ/PMMA Polymers

Liu

Sun

2023

Polymers

View full text Add to dashboard Cite

show abstract

“…In volume holographic storage, photo-initiators play a crucial role in the photopolymerization process, affecting the response time and grating intensity of the volume phase grating formation. In recent years, photopolymer materials have exhibited excellent information recording performance in volume holographic storage [ 19 , 20 , 21 ]. Materials adhered to PMMA and PVA substrates stand out among numerous photopolymer materials due to their unique advantages [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Holographic Grating Enhancement Induced by a Dual-Photo-Initiator System in PMMA Substrate Polymers

Wang,

Sun,

Liu

2023

Polymers

View full text Add to dashboard Cite

Polymer systems induced by the reaction between monomers and photo-initiators play a crucial role in the formation of volume-phase gratings. In this paper, we fabricated a dual-photo-initiator photopolymer by doping EY (Eosin Yellow) molecules into a TI (Titanocene, Irgacure 784@BASF) dispersed PMMA (poly-[methyl methacrylate]) substrate system, with the aim of promoting the diffusion and polymerization processes in volume holographic storage. The two-wave interference system is adopted to record a permanent grating structure in our materials. The temporal diffraction variations of photopolymerization (during the interference exposure) and dark diffusion (after the interference exposure) processes have been investigated and analyzed. Aiming to analyze the influence of EY doping ratios on holographic performances, some key parameters were examined in the experiment. We first measured the temporal evolution of diffraction efficiency, then an exponential fitting was adopted to obtain the response time. Finally, the angular selectivity was evaluated by the Bragg condition after holographic recording. Also, the temporal evolution of each component is described by the nonlocal polymerization-driven diffusion model with a dual-photo-initiator composition, theoretically. Furthermore, we experimentally achieved the holographic grating enhancement in both the dark diffusion and photopolymerization processes by doping appropriate EY concentrations, respectively. This work provides a foundation for the acceptability of TI&EY/PMMA polymers in further holographic storage research.

show abstract

Material Synthesis

Raikov

2024

SpringerBriefs in Applied Sciences and Technology

View full text Add to dashboard Cite

Volume holographic storage using sync-angular multiplexing by rotating material in thick photopolymer

Cited by 5 publications

References 22 publications

Theoretical and Experimental Investigations of Diffraction Characteristics Influenced by Holographic Reciprocity Effect in PQ/PMMA Polymers

Theoretical and Experimental Investigations of Diffraction Characteristics Influenced by Holographic Reciprocity Effect in PQ/PMMA Polymers

Holographic Grating Enhancement Induced by a Dual-Photo-Initiator System in PMMA Substrate Polymers

Material Synthesis

Contact Info

Product

Resources

About