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Spectral Hole-Burning and Related Spectroscopies: Science and Applications

Spectral Hole Stability and Laser Induced Hole-Filling in Zinc-Tetrabenzoporphurin/Aromatic Cyanide System

Nie Yuxin, Zhao Lizeng, Wang Duoyuan, Hu Lingzhi

Published Jan 1, 1994• 0 citations
Publisher

Abstract

The importance of photon-gated persistent spectral hole burning for scientific studies and for frequency domain optical storage (FDOS) has stimulated much recent research to discover new photon-gated materials. For FDOS the practical materials should posses the characteristics of high hole formation efficiency, large multiplicity of spectral hole, good thermal and spectral stability etc.

DOI
10.1364/shbs.1994.wd21

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•May 21, 1990•0 citations
The importance of photon-gated persistent spectral hole burning for scientific studies and for frequency domain optical storage (FDOS) has stimulated much recent research to discover new photon-gated materials. For FDOS the practical materials should posses the characteristics of high hole formation efficiency, large multiplicity of spectral hole, good thermal and spectral stability etc.
Persistent spectral hole-burning (PHB, also called photochemical hole-burning) permits use of the optical frequency for encoding digital information through the presence and absence of spectral holes that are burned in inhomogeneously broadened absorption lines at low (liquid helium) temperatures. The optical frequency or wavelength at which a given hole is burned acts as an additional dimension for data storage, hence this optical recording scheme has been called Frequency Domain Optical Storage (FDOS). The combination of spectral and spatial data-recording can make storage densities in excess of 1010 bits/cm2 possible; furthermore, since rotation of the recording medium is not necessary, shorter random access times will result. The future success of the FDOS concept will rely on progress in several technological and engineering areas as well as on advances in several critical materials areas1.