Special Section on Nanopatterning

All-optical nanoscale read∕write bit formation

[+] Author Affiliations
S. Curran, J. Dewald

New Mexico State University, Physics Department, Las Cruces, New Mexico 88001

D. L. Carroll

Wake Forest University, Physics Department, Winston-Salem, North Carolina

J. Micro/Nanolith. MEMS MOEMS. 5(1), 011013 (March 10, 2006). doi:10.1117/1.2172994
History: Received June 01, 2005; Revised September 01, 2005; Revised October 01, 2005; Accepted November 01, 2005; Published March 10, 2006
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The rapid development of optical processing in optical circuitry (optical computing) is spawning the need for fully optical nonvolatile memory schemes. Nonvolatile memory schemes typically involve diffraction-limited writing techniques like those found in high-density DVDs and CDs. This need limits their memory density by placing a lower boundary on bit size, which is determined by the wavelength of light used in writing the bit. Using near-field optics can provide a revolutionary approach to optical storage, breaking the diffraction limit by a factor of 10, allowing for significantly enhanced data densities. In this approach, the high-frequency components of the near field are used “to write” information in nanostructured composite ultra-thin films with feature sizes of 200nm. Fully optical readouts are possible at data densities approaching 100MBitsmm2. Because of the all-optical nature of this technique, this method can be fully compatible with the next generation of optical computing platforms. It is anticipated that through this research program, this approach will open new vistas in the creation of subwavelength optical circuits, optical processing, and optical data storage.

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© 2006 Society of Photo-Optical Instrumentation Engineers

Citation

S. Curran ; J. Dewald and D. L. Carroll
"All-optical nanoscale read∕write bit formation", J. Micro/Nanolith. MEMS MOEMS. 5(1), 011013 (March 10, 2006). ; http://dx.doi.org/10.1117/1.2172994


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