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Springer eBooks

Zero-Phonon Lines and Time-and-Space-Domain Holography of Ultrafast Events

Peeter Saari

Published Jan 1, 1988• 2 citations
Publisher
DOI
10.1007/978-3-642-73638-4_8

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Time- and space domain (TSD) holography [1-3] can be viewed upon as a more general case of conventional holographic process, in which the recording media re members, in addition to the spatial picture, also the spectral intensity of the illuminating light. The resolution of TSD-holograms in time is Fourier-related to the spectral properties of the recording media. The longest time interval that can be recorded is given by the inverse value of the homogeneous width of the zero-phonon line and the shortest time is given by the inverse value of the width of the inhomogeneous distribution in the frequency dimension. By using photochemical spectral hole-burning in organic dye-polymer systems with very broad inhomogeneous bands TSD-holograms of full scenes of ultrafast events with subpicosecond time resolution have been recorded [4, 5].

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A few examples of recent progress in the study and applications of purely electronic zero-phonon line (ZPL) and its offshoots are briefly considered: new experimental values of the narrowest ZPL; time-and-space-domain holography in the femtosecond domain, and the realization of a femtosecond Taffoli gate by it; single-impurity-molecule spectroscopy, its relation to single-photon interference and to the realization of quantum computing; the promises of quantum computing compared to what has already been done in holography.

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Purely electronic zero-phonon lines in optical data storage and processing

Karl K. Rebane

Spectroscopies of matrix isolated species and impurity activated solids are close relatives. Both are among the well developing chapters of solid state spectroscopy and optics. In this paper I am trying to give very brief overview what has been achieved in science and applications of impurity activated solids based on zero-phonon lines (ZPLs) in optical data storage and processing. I would like to show that the latter comprises via persistent spectral hole burning time-and-space domain holography in a certain meaning also the "stopping of light". ZPLs are beginning to play a role in the approaches to optical quantum computing.

Physical Chemistry Chemical Physics•Jan 1, 2005•2 citations
Time- and space domain (TSD) holography [1-3] can be viewed upon as a more general case of conventional holographic process, in which the recording media re members, in addition to the spatial picture, also the spectral intensity of the illuminating light. The resolution of TSD-holograms in time is Fourier-related to the spectral properties of the recording media. The longest time interval that can be recorded is given by the inverse value of the homogeneous width of the zero-phonon line and the shortest time is given by the inverse value of the width of the inhomogeneous distribution in the frequency dimension. By using photochemical spectral hole-burning in organic dye-polymer systems with very broad inhomogeneous bands TSD-holograms of full scenes of ultrafast events with subpicosecond time resolution have been recorded [4, 5].
A few examples of recent progress in the study and applications of purely electronic zero-phonon line (ZPL) and its offshoots are briefly considered: new experimental values of the narrowest ZPL; time-and-space-domain holography in the femtosecond domain, and the realization of a femtosecond Taffoli gate by it; single-impurity-molecule spectroscopy, its relation to single-photon interference and to the realization of quantum computing; the promises of quantum computing compared to what has already been done in holography.
Spectroscopies of matrix isolated species and impurity activated solids are close relatives. Both are among the well developing chapters of solid state spectroscopy and optics. In this paper I am trying to give very brief overview what has been achieved in science and applications of impurity activated solids based on zero-phonon lines (ZPLs) in optical data storage and processing. I would like to show that the latter comprises via persistent spectral hole burning time-and-space domain holography in a certain meaning also the "stopping of light". ZPLs are beginning to play a role in the approaches to optical quantum computing.