Surface-enhanced Raman optical data storage: A new optical memory with three-dimensional data storage

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1144504· OSTI ID:6764571

Vo-Dinh, T; Stokes, D L ^[1]

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1. Advanced Monitoring Development Group, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

A new optical data storage technology based on the surface-enhanced Raman scattering (SERS) effect has been developed for high-density optical memory and three-dimensional data storage. With the surface-enhanced Raman optical data storage (SERODS) technology, the molecular interactions between the optical layer molecules and the substrate are modified by the writing laser, changing their SERS properties, so that they are encoded to store information as bits. Since the SERS properties are extremely sensitive to molecular microenvironments, very small spectrochemical holes'' approaching the diffraction limit can be produced for the writing process. The SERODS device uses a reading laser to induce the SERS emission of molecules on the disk and a photometric detector tuned to the frequency of the Raman spectrum to retrieve the stored information. The results illustrate that SERODS is capable of three-dimensional data storage.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6764571
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 65:12; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

440600* -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
99 GENERAL AND MISCELLANEOUS
990301 -- Information Handling-- Data Handling-- (1992-)
ELECTROMAGNETIC RADIATION
EQUIPMENT
FUNCTIONS
LASER RADIATION
MEMORY DEVICES
OPTICAL EQUIPMENT
RADIATIONS
RAMAN EFFECT
SENSITIVITY
WAVE FUNCTIONS