Multi-layer optical storage disc based on the frequency up-conversion effect from rare-earth ions

Ho Pui Ho; Wing Wai Wong; Shu Yuen Wu; Edwin E.Y. Pun

doi:10.1117/12.461651

Multi-layer optical storage disc based on the frequency up-conversion effect from rare-earth ions

Ho Pui Ho^*
, Wing Wai Wong
, Shu Yuen Wu
, Edwin E.Y. Pun

^*Corresponding author for this work

City University of Hong Kong

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

Abstract

The application of frequency up-conversion in rare earth (Ho³⁺ and Yb³⁺) co-doped glasses for optical storage has been investigated. Optical discs with the storage layer made from rare-earth doped tellurite glasses have been studied in terms of minimum bit-size and up-conversion efficiency. The possibility of multi-layered architecture has also been investigated. The choice of using tellurite glasses is based on previous experimental results indicating this type of materials gives extremely high up-conversion efficiency. Since the up-conversion effect is dependent on the square of the intensity of the pump beam, it is possible that the 'effective' spot size of the signal region can be a significantly smaller than that limited by diffraction, hence leading to super-resolution in the storage layer and increased storage density.

Original language	English
Pages (from-to)	156-164
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4645
DOIs	https://doi.org/10.1117/12.461651
State	Published - 2002
Externally published	Yes
Event	Rare-Earth-Doped Materials and Devices VI - San Jose, CA, United States Duration: 23 Jan 2002 → 24 Jan 2002

Keywords

Frequency up-conversion
Holmium
Multi-layered optical storage
Rare-earth ions
Tellurite glass
Ytterbium

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10.1117/12.461651

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title = "Multi-layer optical storage disc based on the frequency up-conversion effect from rare-earth ions",

abstract = "The application of frequency up-conversion in rare earth (Ho3+ and Yb3+) co-doped glasses for optical storage has been investigated. Optical discs with the storage layer made from rare-earth doped tellurite glasses have been studied in terms of minimum bit-size and up-conversion efficiency. The possibility of multi-layered architecture has also been investigated. The choice of using tellurite glasses is based on previous experimental results indicating this type of materials gives extremely high up-conversion efficiency. Since the up-conversion effect is dependent on the square of the intensity of the pump beam, it is possible that the 'effective' spot size of the signal region can be a significantly smaller than that limited by diffraction, hence leading to super-resolution in the storage layer and increased storage density.",

keywords = "Frequency up-conversion, Holmium, Multi-layered optical storage, Rare-earth ions, Tellurite glass, Ytterbium",

author = "Ho, \{Ho Pui\} and Wong, \{Wing Wai\} and Wu, \{Shu Yuen\} and Pun, \{Edwin E.Y.\}",

year = "2002",

doi = "10.1117/12.461651",

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volume = "4645",

pages = "156--164",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "Rare-Earth-Doped Materials and Devices VI ; Conference date: 23-01-2002 Through 24-01-2002",

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TY - JOUR

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AU - Ho, Ho Pui

AU - Wong, Wing Wai

AU - Wu, Shu Yuen

AU - Pun, Edwin E.Y.

PY - 2002

Y1 - 2002

N2 - The application of frequency up-conversion in rare earth (Ho3+ and Yb3+) co-doped glasses for optical storage has been investigated. Optical discs with the storage layer made from rare-earth doped tellurite glasses have been studied in terms of minimum bit-size and up-conversion efficiency. The possibility of multi-layered architecture has also been investigated. The choice of using tellurite glasses is based on previous experimental results indicating this type of materials gives extremely high up-conversion efficiency. Since the up-conversion effect is dependent on the square of the intensity of the pump beam, it is possible that the 'effective' spot size of the signal region can be a significantly smaller than that limited by diffraction, hence leading to super-resolution in the storage layer and increased storage density.

AB - The application of frequency up-conversion in rare earth (Ho3+ and Yb3+) co-doped glasses for optical storage has been investigated. Optical discs with the storage layer made from rare-earth doped tellurite glasses have been studied in terms of minimum bit-size and up-conversion efficiency. The possibility of multi-layered architecture has also been investigated. The choice of using tellurite glasses is based on previous experimental results indicating this type of materials gives extremely high up-conversion efficiency. Since the up-conversion effect is dependent on the square of the intensity of the pump beam, it is possible that the 'effective' spot size of the signal region can be a significantly smaller than that limited by diffraction, hence leading to super-resolution in the storage layer and increased storage density.

KW - Frequency up-conversion

KW - Holmium

KW - Multi-layered optical storage

KW - Rare-earth ions

KW - Tellurite glass

KW - Ytterbium

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U2 - 10.1117/12.461651

DO - 10.1117/12.461651

M3 - 会议文章

AN - SCOPUS:0036029302

SN - 0277-786X

VL - 4645

SP - 156

EP - 164

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Rare-Earth-Doped Materials and Devices VI

Y2 - 23 January 2002 through 24 January 2002

ER -

Multi-layer optical storage disc based on the frequency up-conversion effect from rare-earth ions

Abstract

Keywords

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