Nanostructure surface relief profiles for high-density optical data storage

Mike E. Potter; Kelly Goss; Mark A. Neifeld; Richard W. Ziolkowski

doi:10.1016/j.optcom.2005.04.050

Nanostructure surface relief profiles for high-density optical data storage

Mike E. Potter, Kelly Goss, Mark A. Neifeld, Richard W. Ziolkowski

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A new optical data storage structure is proposed that utilizes surface relief profiles at sub-wavelength scales to distinguish memory states in a read-only memory system. Groupings of power sensors directly beneath the features read light transmitted through the structure from above. These are used to distinguish states from one another, where different surface profiles lead to different states. Two-dimensional simulations are performed using the finite-difference time-domain (FDTD) method to optimize parameters of the system, and to determine the data capacity and density of optimal systems. Two optimal systems are studied in detail: one intended as a polymer construction, the other as silicon. Techniques are developed to estimate capacity and density from subsets of simulations. Simulations estimate that densities of 3.17 GBits/cm² are possible with this type of system.

Original language	English (US)
Pages (from-to)	56-69
Number of pages	14
Journal	Optics Communications
Volume	253
Issue number	1-3
DOIs	https://doi.org/10.1016/j.optcom.2005.04.050
State	Published - Sep 1 2005

Keywords

Memory systems
Optical storage

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2005.04.050

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@article{1ceb25ba5764405ba22af05ee39acd67,

title = "Nanostructure surface relief profiles for high-density optical data storage",

abstract = "A new optical data storage structure is proposed that utilizes surface relief profiles at sub-wavelength scales to distinguish memory states in a read-only memory system. Groupings of power sensors directly beneath the features read light transmitted through the structure from above. These are used to distinguish states from one another, where different surface profiles lead to different states. Two-dimensional simulations are performed using the finite-difference time-domain (FDTD) method to optimize parameters of the system, and to determine the data capacity and density of optimal systems. Two optimal systems are studied in detail: one intended as a polymer construction, the other as silicon. Techniques are developed to estimate capacity and density from subsets of simulations. Simulations estimate that densities of 3.17 GBits/cm2 are possible with this type of system.",

keywords = "Memory systems, Optical storage",

author = "Potter, {Mike E.} and Kelly Goss and Neifeld, {Mark A.} and Ziolkowski, {Richard W.}",

note = "Funding Information: This work was supported through the generosity of the Natural Sciences and Engineering Research Council (NSERC) of Canada, and supported in part by AFOSR under contract number F49620-01-1-0363 #5. We would also like to express our gratitude to the anonymous reviewer for their comments on implementation, and in particular for the use of space-to-spectrum conversion for far field sensing.",

year = "2005",

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day = "1",

doi = "10.1016/j.optcom.2005.04.050",

language = "English (US)",

volume = "253",

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journal = "Optics Communications",

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AU - Potter, Mike E.

AU - Goss, Kelly

AU - Neifeld, Mark A.

AU - Ziolkowski, Richard W.

N1 - Funding Information: This work was supported through the generosity of the Natural Sciences and Engineering Research Council (NSERC) of Canada, and supported in part by AFOSR under contract number F49620-01-1-0363 #5. We would also like to express our gratitude to the anonymous reviewer for their comments on implementation, and in particular for the use of space-to-spectrum conversion for far field sensing.

PY - 2005/9/1

Y1 - 2005/9/1

N2 - A new optical data storage structure is proposed that utilizes surface relief profiles at sub-wavelength scales to distinguish memory states in a read-only memory system. Groupings of power sensors directly beneath the features read light transmitted through the structure from above. These are used to distinguish states from one another, where different surface profiles lead to different states. Two-dimensional simulations are performed using the finite-difference time-domain (FDTD) method to optimize parameters of the system, and to determine the data capacity and density of optimal systems. Two optimal systems are studied in detail: one intended as a polymer construction, the other as silicon. Techniques are developed to estimate capacity and density from subsets of simulations. Simulations estimate that densities of 3.17 GBits/cm2 are possible with this type of system.

AB - A new optical data storage structure is proposed that utilizes surface relief profiles at sub-wavelength scales to distinguish memory states in a read-only memory system. Groupings of power sensors directly beneath the features read light transmitted through the structure from above. These are used to distinguish states from one another, where different surface profiles lead to different states. Two-dimensional simulations are performed using the finite-difference time-domain (FDTD) method to optimize parameters of the system, and to determine the data capacity and density of optimal systems. Two optimal systems are studied in detail: one intended as a polymer construction, the other as silicon. Techniques are developed to estimate capacity and density from subsets of simulations. Simulations estimate that densities of 3.17 GBits/cm2 are possible with this type of system.

KW - Memory systems

KW - Optical storage

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UR - http://www.scopus.com/inward/citedby.url?scp=23844530219&partnerID=8YFLogxK

U2 - 10.1016/j.optcom.2005.04.050

DO - 10.1016/j.optcom.2005.04.050

M3 - Article

SN - 0030-4018

VL - 253

SP - 56

EP - 69

JO - Optics Communications

JF - Optics Communications

IS - 1-3

ER -

Nanostructure surface relief profiles for high-density optical data storage

Abstract

Keywords

ASJC Scopus subject areas

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