Holographic storage is considered a promising successor to currently available optical storage technologies. Enabling significant gains in both data transfer rates and storage densities, holographic storage and its capabilities have gained a great deal of recent attention.One of the primary challenges in the advancement of holographic storage has been the development of suitable recording materials.In this article, we provide a brief introduction to holographic storage and its potential advantages over current technologies, outline the requirements for recording materials, and survey candidate materials.We end by highlighting recent progress in photopolymer materials that has produced materials that satisfy the requirements for holographic storage and have enabled significant demonstrations of the viability of this technology.
Lisa Dhar, guest editor for this issue of MRS Bulletin, is the vice president of media development and one of the founders of InPhase Technologies (Longmont, Colo.). Before founding InPhase, she was a member of the Bell Labs core team at Lucent Technologies responsible for developing the technology in holographic storage upon which InPhase is based. She holds a PhD degree from the Massachusetts Institute of Technology and a BS degree from the University of Chicago, both in chemistry. She has authored numerous technical articles in the areas of holographic data storage, optical microscopy, and pulsed lasers, and she is the inventor on more than 15 patents and patent applications.
Dhar can be reached at InPhase Technologies, 2000 Pike Road, Longmont, CO 80501, USA; tel. 217-369-7409 and e-mail email@example.com.