Two-dimensional finite-difference time-domain simulation for rewritable optical disk surface structure design

Justin B. Judkins, Charles W. Haggans, Richard W Ziolkowski

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A novel two-dimensional finite-difference time-domain simulation for treating the interaction of a focused beam with a rewritable optical disk is detailed and experimentally validated. In this simulation, the real material properties of the rewritable multilayer stack and the aperiodic nature of the disk topography are considered. Excellent agreement is obtained between calculated and measured push-pull tracking servosignals for magneto-optical disks with pregrooves and infinite-length preformat pits. To demonstrate the utility of the simulation as a design tool, the design process for a 0.9-μm track pitch, continuous, composite servoformat magneto-optical disk is given.

Original languageEnglish (US)
Pages (from-to)2477-2487
Number of pages11
JournalApplied Optics
Volume35
Issue number14
StatePublished - May 10 1996

Fingerprint

optical disks
Surface structure
Topography
Materials properties
Multilayers
simulation
topography
Composite materials
composite materials
interactions

Keywords

  • Compact disk
  • Finite-difference time domain
  • Focused beams
  • Gratings
  • Multilayer
  • Optical disk
  • Push-pull
  • Tracking signals

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Two-dimensional finite-difference time-domain simulation for rewritable optical disk surface structure design. / Judkins, Justin B.; Haggans, Charles W.; Ziolkowski, Richard W.

In: Applied Optics, Vol. 35, No. 14, 10.05.1996, p. 2477-2487.

Research output: Contribution to journalArticle

@article{351203166d4a4a328654d0edb417df33,
title = "Two-dimensional finite-difference time-domain simulation for rewritable optical disk surface structure design",
abstract = "A novel two-dimensional finite-difference time-domain simulation for treating the interaction of a focused beam with a rewritable optical disk is detailed and experimentally validated. In this simulation, the real material properties of the rewritable multilayer stack and the aperiodic nature of the disk topography are considered. Excellent agreement is obtained between calculated and measured push-pull tracking servosignals for magneto-optical disks with pregrooves and infinite-length preformat pits. To demonstrate the utility of the simulation as a design tool, the design process for a 0.9-μm track pitch, continuous, composite servoformat magneto-optical disk is given.",
keywords = "Compact disk, Finite-difference time domain, Focused beams, Gratings, Multilayer, Optical disk, Push-pull, Tracking signals",
author = "Judkins, {Justin B.} and Haggans, {Charles W.} and Ziolkowski, {Richard W}",
year = "1996",
month = "5",
day = "10",
language = "English (US)",
volume = "35",
pages = "2477--2487",
journal = "Applied Optics",
issn = "1559-128X",
publisher = "The Optical Society",
number = "14",

}

TY - JOUR

T1 - Two-dimensional finite-difference time-domain simulation for rewritable optical disk surface structure design

AU - Judkins, Justin B.

AU - Haggans, Charles W.

AU - Ziolkowski, Richard W

PY - 1996/5/10

Y1 - 1996/5/10

N2 - A novel two-dimensional finite-difference time-domain simulation for treating the interaction of a focused beam with a rewritable optical disk is detailed and experimentally validated. In this simulation, the real material properties of the rewritable multilayer stack and the aperiodic nature of the disk topography are considered. Excellent agreement is obtained between calculated and measured push-pull tracking servosignals for magneto-optical disks with pregrooves and infinite-length preformat pits. To demonstrate the utility of the simulation as a design tool, the design process for a 0.9-μm track pitch, continuous, composite servoformat magneto-optical disk is given.

AB - A novel two-dimensional finite-difference time-domain simulation for treating the interaction of a focused beam with a rewritable optical disk is detailed and experimentally validated. In this simulation, the real material properties of the rewritable multilayer stack and the aperiodic nature of the disk topography are considered. Excellent agreement is obtained between calculated and measured push-pull tracking servosignals for magneto-optical disks with pregrooves and infinite-length preformat pits. To demonstrate the utility of the simulation as a design tool, the design process for a 0.9-μm track pitch, continuous, composite servoformat magneto-optical disk is given.

KW - Compact disk

KW - Finite-difference time domain

KW - Focused beams

KW - Gratings

KW - Multilayer

KW - Optical disk

KW - Push-pull

KW - Tracking signals

UR - http://www.scopus.com/inward/record.url?scp=0000619067&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000619067&partnerID=8YFLogxK

M3 - Article

C2 - 21085385

AN - SCOPUS:0000619067

VL - 35

SP - 2477

EP - 2487

JO - Applied Optics

JF - Applied Optics

SN - 1559-128X

IS - 14

ER -