Holographic memory performances of titanocene dispersed poly (methyl methacrylate) photopolymer with different preparation conditions

Liu, Peng; Wang, Linlin; Zhao, Yu; Li, Zeren; Sun, Xiaohan

doi:10.1364/ome.8.001441

Cited by 15 publications

(8 citation statements)

References 30 publications

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“…Work to improve PQ/PMMA photopolymer materials has continued in recent years. In addition to these methods of changing the photosensitizer composition and doping other components, some researchers have made progress by improving the preparation process of the materials to increase the concentration of PQ molecules [55]. For photopolymer materials, to improve the polarization sensitivity of materials, it is useful to synthesize or search for more effective polarization sensitive photosensitizer molecules, optimize the polymer substrate with compatible co-polymer substrate, and dope helpful nano-components.…”

Section: Photopolymer Materialsmentioning

confidence: 99%

A Review of Polarization-Sensitive Materials for Polarization Holography

Zhai

Liu

et al. 2020

Materials

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Polarization holography has the unique capacity to record and retrieve the amplitude, phase, and polarization of light simultaneously in a polarization-sensitive recording material and has attracted widespread attention. Polarization holography is a noteworthy technology with potential applications in the fields of high-capacity data storage, polarization-controlled optical elements, and other related fields. The choice of its high-performance materials is particularly important. To further develop polarization holography applications and improve the quality of the information recorded (i.e., material sensitivity and resolution), a deeper understanding of such materials is needed. We present an overview of the polarization-sensitive materials, which introduced polarization holographic technology and the development of polarization holographic materials. The three main types of polarization holographic materials are described, including azopolymer materials, photopolymer material, and photorefractive polymer material. We examine the key contributions of each work and present many of the suggestions that have been made to improve the different polarization-sensitive photopolymer materials.

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Section: Photopolymer Materialsmentioning

confidence: 99%

A Review of Polarization-Sensitive Materials for Polarization Holography

Zhai

Liu

et al. 2020

Materials

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“…Here, we fabricated TI/PMMA polymers using a three-step polymerization method [ 14 ], which included pre-polymerization, high-temperature treatment and low-temperature polymerization. The chemical structures of the main solutes and solvents used in the fabrication of TI/PMMA polymers are depicted in Figure 1 [ 23 , 24 , 25 ].…”

Section: Methodsmentioning

confidence: 99%

“…%) and thermo-initiator (AIBN molecules 2.0 wt. %) were introduced into the substrate MMA monomers, which was investigated on our previous page [ 14 ]. The mixture was stirred at 40 °C for 24 h to make the solute dissolve completely and remove the nitrogen generated by the thermo-decomposition of the AIBN.…”

Section: Methodsmentioning

confidence: 99%

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Holographic Grating Enhancement of TI/PMMA Polymers in the Dark Diffusion Process

Liu

Sun

2021

Polymers

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The dark diffusion enhancement process (DDEP) caused by photopolymerization during the pre-exposure of TI/PMMA (titanocene dispersed methyl methacrylate matrix) polymers was theoretically analyzed and experimentally investigated, revealing the holographic grating enhancement of TI/PMMA polymers in the post-exposure process without additional operations. The diffusion of photo-initiators and photoproducts dominated the grating enhancement process after exposure. We adopted two pre-exposure methods, long-time (second level) and short-time (millisecond level) laser exposure, at 532 nm, to investigate the DDEP during the post-exposure process. A five-fold enhancement in grating strength was achieved in consecutive long-time pre-exposures, while a two-fold grating development was examined after short-time exposure. Additionally, the exposure durations and repetition rates influenced the grating increment of the DDEP. This study provided a basis for the feasibility of holographic application in TI/PMMA photopolymers via the dark diffusion effect.

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“…Later, Peng Liu used an optimized three-step thermal polymerization method to prepare a novel cationic photoinitiator: dimethene dispersed polymethyl methacrylate (Ti/PMMA) photopolymer [ 126 , 127 ]. The experiments studied detail the effect of changes in material thickness on holographic properties.…”

Section: Origins Of Pq/pmma and Performance Improvement Measuresmentioning

confidence: 99%

Phenanthraquinone-Doped Polymethyl Methacrylate Photopolymer for Holographic Recording

Zeng

et al. 2022

Molecules

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Phenanthraquinone-doped polymethyl methacrylate (PQ/PMMA) photopolymers are considered to be the most promising holographic storage media due to their unique properties, such as high stability, a simple preparation process, low price, and volumetric shrinkage. This paper reviews the development process of PQ/PMMA photopolymers from inception to the present, summarizes the process, and looks at the development potential of PQ/PMMA in practical applications.

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Holographic memory performances of titanocene dispersed poly (methyl methacrylate) photopolymer with different preparation conditions

Cited by 15 publications

References 30 publications

A Review of Polarization-Sensitive Materials for Polarization Holography

A Review of Polarization-Sensitive Materials for Polarization Holography

Holographic Grating Enhancement of TI/PMMA Polymers in the Dark Diffusion Process

Phenanthraquinone-Doped Polymethyl Methacrylate Photopolymer for Holographic Recording

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