Localized light focusing and super resolution readout via chalcogenide thin film

Junji Tominaga; Paul Fons; Takayuki Shima; Kazuma Kurihara; Takashi Nakano; Alexander Kolobov; Stephane Petit

doi:10.1557/proc-0918-h06-01-g07-01

Localized light focusing and super resolution readout via chalcogenide thin film

Junji Tominaga, Paul Fons, Takayuki Shima, Kazuma Kurihara, Takashi Nakano, Alexander Kolobov, Stephane Petit

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

We have demonstrated that certain chalcogenide layers within a spinning super-RENS optical disc allow to squeeze the 650 nm laser beam to a spot size as fine as 50 nm using a 15-nm chalcogenide film. The near-field light was focused at a depth of just over 30 nm after passing through a chalcogenide film. Finite-difference time-domain (FDTD) simulations also reproduced these results. We suggest that a conductive ring aperture generated in the chalcogenide layers plays an important role in the localized light focusing.

Original language	English
Pages (from-to)	41-51
Number of pages	11
Journal	Materials Research Society Symposium Proceedings
Volume	918
DOIs	https://doi.org/10.1557/proc-0918-h06-01-g07-01
Publication status	Published - 2006
Externally published	Yes
Event	2006 MRS Spring Meeting - San Francisco, CA, United States Duration: 2006 Apr 19 → 2006 Apr 21

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Localized light focusing and super resolution readout via chalcogenide thin film",

abstract = "We have demonstrated that certain chalcogenide layers within a spinning super-RENS optical disc allow to squeeze the 650 nm laser beam to a spot size as fine as 50 nm using a 15-nm chalcogenide film. The near-field light was focused at a depth of just over 30 nm after passing through a chalcogenide film. Finite-difference time-domain (FDTD) simulations also reproduced these results. We suggest that a conductive ring aperture generated in the chalcogenide layers plays an important role in the localized light focusing.",

author = "Junji Tominaga and Paul Fons and Takayuki Shima and Kazuma Kurihara and Takashi Nakano and Alexander Kolobov and Stephane Petit",

year = "2006",

doi = "10.1557/proc-0918-h06-01-g07-01",

language = "English",

volume = "918",

pages = "41--51",

journal = "Materials Research Society Symposium Proceedings",

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TY - JOUR

T1 - Localized light focusing and super resolution readout via chalcogenide thin film

AU - Tominaga, Junji

AU - Fons, Paul

AU - Shima, Takayuki

AU - Kurihara, Kazuma

AU - Nakano, Takashi

AU - Kolobov, Alexander

AU - Petit, Stephane

PY - 2006

Y1 - 2006

N2 - We have demonstrated that certain chalcogenide layers within a spinning super-RENS optical disc allow to squeeze the 650 nm laser beam to a spot size as fine as 50 nm using a 15-nm chalcogenide film. The near-field light was focused at a depth of just over 30 nm after passing through a chalcogenide film. Finite-difference time-domain (FDTD) simulations also reproduced these results. We suggest that a conductive ring aperture generated in the chalcogenide layers plays an important role in the localized light focusing.

AB - We have demonstrated that certain chalcogenide layers within a spinning super-RENS optical disc allow to squeeze the 650 nm laser beam to a spot size as fine as 50 nm using a 15-nm chalcogenide film. The near-field light was focused at a depth of just over 30 nm after passing through a chalcogenide film. Finite-difference time-domain (FDTD) simulations also reproduced these results. We suggest that a conductive ring aperture generated in the chalcogenide layers plays an important role in the localized light focusing.

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DO - 10.1557/proc-0918-h06-01-g07-01

M3 - Conference article

AN - SCOPUS:33751061018

SN - 0272-9172

VL - 918

SP - 41

EP - 51

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

T2 - 2006 MRS Spring Meeting

Y2 - 19 April 2006 through 21 April 2006

ER -

Localized light focusing and super resolution readout via chalcogenide thin film

Abstract

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