Vector diffraction and polarization effects in an optical disk system

Wei Hung Yen, Lifeng Li, Masud Mansuripur

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The track pitch of current optical disks is comparable with the wavelength of the laser source. In this domain of the pitch-to-wavelength ratio, the complex-diffraction amplitudes are different for different incident polarization states, and the validity of the scalar diffraction theory is questionable. Furthermore, the use of multilayer coatings and high-numerical-aperture beams in modern optical disk technology inevitably entails the excitation of surface waves, which can disturb the baseball pattern significantly. To describe the interaction of a focused beam with a grooved multilayer system fully, it is necessary to have a rigorous vector theory. We use a rigorous vector theory to model the diffraction of light at the optical disk. We present the simulation and the experimental results and demonstrate the ability of this approach to predict or model accurately all essential features of beam-disk interaction, including the polarization effects and the excitation of surface waves.

Original languageEnglish (US)
Pages (from-to)6983-6988
Number of pages6
JournalApplied Optics
Volume37
Issue number29
StatePublished - 1998

Fingerprint

optical disks
Diffraction
Polarization
Surface waves
surface waves
Multilayers
polarization
diffraction
Wavelength
numerical aperture
wavelengths
excitation
interactions
scalars
coatings
Coatings
Lasers
lasers
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Vector diffraction and polarization effects in an optical disk system. / Yen, Wei Hung; Li, Lifeng; Mansuripur, Masud.

In: Applied Optics, Vol. 37, No. 29, 1998, p. 6983-6988.

Research output: Contribution to journalArticle

Yen, Wei Hung ; Li, Lifeng ; Mansuripur, Masud. / Vector diffraction and polarization effects in an optical disk system. In: Applied Optics. 1998 ; Vol. 37, No. 29. pp. 6983-6988.
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