Tolerance of holographic polymer-dispersed liquid crystal memory for gamma-ray irradiation

Akifumi Ogiwara; Minoru Watanabe; Yoshizumi Ito

doi:10.1364/AO.56.004854

Tolerance of holographic polymer-dispersed liquid crystal memory for gamma-ray irradiation

Akifumi Ogiwara, Minoru Watanabe, Yoshizumi Ito

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

8 Citations (Scopus)

Abstract

The radiation-hardened characteristics of holographic polymer-dispersed liquid crystal (HPDLC) memory are discussed in the application for an optically reconfigurable gate array. The radiation experiments are conducted using a cobalt 60 gamma radiation source to examine the tolerance of a 100 Mrad total ionizing dose for the HPDLC memory. The optical properties are compared in the conditions before and after gamma-ray irradiation for the fabricated HPDLC gratings. The effects of gamma-ray irradiation on the internal grating structure are also investigated by polarization optical microscopy and scanning electron microscopy observations. The HPDLC memory irradiated by a 100 Mrad total ionizing dose demonstrates the implementation of the optical reconfiguration in a gate-Array VLSI.

Original language	English
Pages (from-to)	4854-4860
Number of pages	7
Journal	Applied Optics
Volume	56
Issue number	16
DOIs	https://doi.org/10.1364/AO.56.004854
Publication status	Published - Jun 1 2017
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.56.004854

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title = "Tolerance of holographic polymer-dispersed liquid crystal memory for gamma-ray irradiation",

abstract = "The radiation-hardened characteristics of holographic polymer-dispersed liquid crystal (HPDLC) memory are discussed in the application for an optically reconfigurable gate array. The radiation experiments are conducted using a cobalt 60 gamma radiation source to examine the tolerance of a 100 Mrad total ionizing dose for the HPDLC memory. The optical properties are compared in the conditions before and after gamma-ray irradiation for the fabricated HPDLC gratings. The effects of gamma-ray irradiation on the internal grating structure are also investigated by polarization optical microscopy and scanning electron microscopy observations. The HPDLC memory irradiated by a 100 Mrad total ionizing dose demonstrates the implementation of the optical reconfiguration in a gate-Array VLSI.",

author = "Akifumi Ogiwara and Minoru Watanabe and Yoshizumi Ito",

note = "Funding Information: Japan Society for the Promotion of Science (JSPS) KAKENHI (26420328, 17K06408). Publisher Copyright: {\textcopyright} 2017 Optical Society of America.",

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AU - Ogiwara, Akifumi

AU - Watanabe, Minoru

AU - Ito, Yoshizumi

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AB - The radiation-hardened characteristics of holographic polymer-dispersed liquid crystal (HPDLC) memory are discussed in the application for an optically reconfigurable gate array. The radiation experiments are conducted using a cobalt 60 gamma radiation source to examine the tolerance of a 100 Mrad total ionizing dose for the HPDLC memory. The optical properties are compared in the conditions before and after gamma-ray irradiation for the fabricated HPDLC gratings. The effects of gamma-ray irradiation on the internal grating structure are also investigated by polarization optical microscopy and scanning electron microscopy observations. The HPDLC memory irradiated by a 100 Mrad total ionizing dose demonstrates the implementation of the optical reconfiguration in a gate-Array VLSI.

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Tolerance of holographic polymer-dispersed liquid crystal memory for gamma-ray irradiation

Abstract

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