Photoaddressable Polymers: A New Class of Materials for Optical Data Storage and Holographic Memories

Abstract

In the paper we discuss the role of the axial U (1)A symmetry in the chiral phase transition using the U (N f )R × U (N f )L linear sigma model with two massless quark flavors. It is expected that above a certain temperature the axial U (1)A symmetry will be restored. A string-like static solution, the η string can be formed and detected in the ultrarelativistic heavy-ion collision process.

Deoxyribonucleic acid-based photochromic material for fast dynamic holography

“…Photoinduced optical anisotropy ͑birefringence and di-chroism͒ found in photochromic materials is a key feature for their use in such technical applications as optical storage, optical switching, and optical information processing. 1,2 Optically bistable azobenzene derivatives receive much attention due to their efficient trans-cis-type light-induced reversible photoisomerization. 3,4 Generally, azobenzenes exhibit three types of optical nonlinearities: the electronic, trans-cis photoisomerization, and thermal types, respectively.…”

Computer generated polarization holograms with defined magnitude and orientation of each pixel’s birefringence

“…The proposed polarization holograms are experimentally realized in Azobenzene-Polymers [6]. The polymer is spincoated on an aluminum mirror.…”

Recent advances in holographic data storage

“…Photoaddressable systems were introduced in the 1990s by Bayer A G [56]. In these materials, holographic writing occurs through photoinduced birefringence.…”