Layer-by-layer reading of information in bacteriorhodopsin-based 3D optical memory

Elena A. Nikanorova; Vladimir B. Kotov

doi:10.1117/12.264193

23 January 1997 Layer-by-layer reading of information in bacteriorhodopsin-based 3D optical memory

Elena A. Nikanorova, Vladimir B. Kotov

Proceedings Volume 2998, Photosensitive Optical Materials and Devices; (1997) https://doi.org/10.1117/12.264193
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

The possibility of layer-by-layer reading of information in photoreversible medium based on bacteriorhodopsin is considered. We propose to use for information reading the light with wavelength in the absorption spectrum of K- intermediate, which is shifted relative to the absorption spectra of B- and M-intermediates into the long wavelength region. For layer marking, the high concentration of the K- form bacteriorhodopsin molecules is produced by means of two light waves with the wavelength in the absorption spectra of B- and M-intermediates, propagating in opposite directions. The condition of high quality of marking is the sufficiently high clarification of the medium caused by light waves. The stationary as well as nonstationary regimes of marking are considered. The possibility of reproducing the temporal sequences of layer-by-layer written images in nonstationary regime of marking is demonstrated.

Citation Download Citation

Elena A. Nikanorova and Vladimir B. Kotov "Layer-by-layer reading of information in bacteriorhodopsin-based 3D optical memory", Proc. SPIE 2998, Photosensitive Optical Materials and Devices, (23 January 1997); https://doi.org/10.1117/12.264193

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