Methods and Strategies for Enhancing the Performance of PQ/PMMA Photopolymers for Holographic Data Storage

Area of Science:

• Materials Science
• Optical Engineering
• Data Storage Technologies

Background:

• Big data necessitates advanced storage solutions beyond traditional methods.
• Collinear holographic storage offers high density, rapid transmission, and reliability.
• PQ/PMMA photopolymers are attractive for holographic storage due to low shrinkage and cost, but face challenges.

Purpose of the Study:

• To review recent strategies for enhancing PQ/PMMA photopolymer performance in holographic storage.
• To provide insights into the physicochemical mechanisms driving these enhancements.
• To offer references for developing high-performance PQ/PMMA materials for collinear holographic storage.

Main Methods:

• Review of research over the past five years on PQ/PMMA photopolymer enhancement.
• Analysis of microscopic physicochemical mechanisms in traditional and polarization holography.
• Exploration of methods including chemical modification, nanoscale doping, and mechanical control.

Main Results:

• PQ/PMMA photopolymers exhibit polarization-sensitive holographic properties.
• Limitations include low photosensitivity, weak polarization response, and poor optical uniformity.
• Various modification strategies have been investigated to address these limitations.

Conclusions:

• Enhancing PQ/PMMA photopolymers is crucial for realizing their potential in collinear holographic storage.
• Systematic review provides a foundation for future material development.
• Further research can optimize materials for high-speed recording and multidimensional multiplexing.