Organic Dye 25 GB Write-Once Disk with In-Groove Structure

Abstract

By means of two simple examples, phase and amplitude damping, the impact of decoherence on the dynamical Casimir effect is investigated. Even without dissipating energy (i.e., pure phase damping), the amount of created particles can be diminished significantly via the coupling to the environment (reservoir theory) inducing decoherence. For a simple microscopic model, it is demonstrated that spontaneous decays within the medium generate those problems; Rabi oscillations are far more advantageous in that respect. These findings are particularly relevant in view of a recently proposed experimental verification of the dynamical Casimir effect.

The Nanocomposite Thin Film Applied to High-Density Write-Once Optical Data Storage

“…Recently, high-density digital versatile disks (HD-DVDs) and Blu-ray disks (BDs) have been proposed and they are recognized as ideal recording media for next-generation optical data storage. For write-once HD-DVDs and BDs, the recording materials can be either organic dyes 1,2) or inorganic metallic alloys. 3) Phase-change-based alloys, 4) single-layer AlSi alloys, 5,6) bilayer metals such as Cu/Si 7) and Zn/Ge, 8) and metallic nitrides 9) have been reported for write-once disk applications.…”

Crystallization Mechanism of Si/Cu_100-xZr_x Bilayer Film for Write-Once Blue Laser Optical Recording Media

“…For write-once blue laser optical recording media, various organic and inorganic materials are proposed as the recording layer. [1][2] In the inorganic type materials, amorphous silicon (a-Si) was a promising candidate due to its low cost, however, its high crystallization temperature (700 °C) [3] was the main limitation for applying to the write-once optical recording media. In 2003, H. Inoue et al [4] proposed the Cu/a-Si bilayer thin film as recording layer for write-once blue laser disc.…”

GeCu/Si Bilayer Thin Film for Write-Once Blue Laser Optical Recording Media

“…For write-once blue laser optical recording media, various organic and inorganic materials are proposed as the recording layer. [1][2] In the inorganic type materials, amorphous silicon (a-Si) was a promising candidate due to its low cost, however, its high crystallization temperature (700 °C) [3] was the main limitation for applying to the write-once optical recording media. Metal induced crystallization [4][5][6] can dramatically reduce the crystallization temperature of a-Si, later, the metal/Si bilayer films [7][8][9] have been a promising candidate for write-once blue laser optical disc.…”