Three-dimensional multilevel memory based on laser-polarization-dependence birefringence

Guanghua Cheng; Qing Liu; Yishan Wang; Wei Zhao; Guofu Chen

Three-dimensional multilevel memory based on laser-polarization-dependence birefringence

Guanghua Cheng
, Qing Liu
, Yishan Wang
, Wei Zhao
, Guofu Chen

CAS - Xi'an Institute of Optics and Precision Mechanics
Zhejiang Wanli College

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

4 Scopus citations

Abstract

The femtosecond laser-modified region in isotropic glass medium shows a big optical birefringence. Transmission of the birefringent regions between two crossed polarizers depends on phase retardation and the orientation angle of the birefringent optical axes. Based on this effect, three-dimensional (3D) multilevel memory was proposed and demonstrated for nonvolatile memory up to eight levels, in contrast to the standard two-level technology. Eight-level writing and reading are distinguishable in fused silica with a near-infrared femtosecond laser. The retention of this memory is characterized for nonvolatile applications.

Original language	English
Pages (from-to)	111-113
Number of pages	3
Journal	Chinese Optics Letters
Volume	4
Issue number	2
State	Published - Feb 2006
Externally published	Yes

Cite this

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abstract = "The femtosecond laser-modified region in isotropic glass medium shows a big optical birefringence. Transmission of the birefringent regions between two crossed polarizers depends on phase retardation and the orientation angle of the birefringent optical axes. Based on this effect, three-dimensional (3D) multilevel memory was proposed and demonstrated for nonvolatile memory up to eight levels, in contrast to the standard two-level technology. Eight-level writing and reading are distinguishable in fused silica with a near-infrared femtosecond laser. The retention of this memory is characterized for nonvolatile applications.",

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AU - Cheng, Guanghua

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AU - Zhao, Wei

AU - Chen, Guofu

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N2 - The femtosecond laser-modified region in isotropic glass medium shows a big optical birefringence. Transmission of the birefringent regions between two crossed polarizers depends on phase retardation and the orientation angle of the birefringent optical axes. Based on this effect, three-dimensional (3D) multilevel memory was proposed and demonstrated for nonvolatile memory up to eight levels, in contrast to the standard two-level technology. Eight-level writing and reading are distinguishable in fused silica with a near-infrared femtosecond laser. The retention of this memory is characterized for nonvolatile applications.

AB - The femtosecond laser-modified region in isotropic glass medium shows a big optical birefringence. Transmission of the birefringent regions between two crossed polarizers depends on phase retardation and the orientation angle of the birefringent optical axes. Based on this effect, three-dimensional (3D) multilevel memory was proposed and demonstrated for nonvolatile memory up to eight levels, in contrast to the standard two-level technology. Eight-level writing and reading are distinguishable in fused silica with a near-infrared femtosecond laser. The retention of this memory is characterized for nonvolatile applications.

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M3 - 文章

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JO - Chinese Optics Letters

JF - Chinese Optics Letters

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ER -

Three-dimensional multilevel memory based on laser-polarization-dependence birefringence

Abstract

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