Development of ultra-wide band near-infrared wavelength swept light source using InAs quantum dots and its application to OCT
| Project/Area Number |
16H03858
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Crystal engineering
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| Research Institution | Wakayama University |
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Principal Investigator |
Ozaki Nobuhiko 和歌山大学, システム工学部, 准教授 (30344873)
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| Co-Investigator(Kenkyū-buntansha) |
池田 直樹 国立研究開発法人物質・材料研究機構, 技術開発・共用部門, 主任エンジニア (10415771)
久保 隆史 和歌山県立医科大学, 医学部, 准教授 (30316096)
赤阪 隆史 和歌山県立医科大学, 医学部, 教授 (70322584)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
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| Keywords | 量子ドット / 分子線エピタキシー / 近赤外光源 / 光コヒーレンストモグラフィー / 近赤外波長掃引光源 / 光コヒーレンストモグラフィー（OCT） / 結晶工学 / 分子線エピタキシー(MBE) / OCT / 波長掃引光源 / 近赤外波長光源 / 医療イメージング / 近赤外広帯域光源 / 分子線エピタキシー（MBE） / MBE |
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| Outline of Final Research Achievements |
We have developed a tunable laser based on self-assembled InAs quantum dots (QDs) for swept-source optical coherence tomography (SS-OCT) applications. Self-assembled InAs QDs grown on GaAs have an inherent size distribution resulting in a near-infrared broadband gain spectrum; thus, the QD-based tunable laser is suitable for application to SS-OCT light sources realizing high axial resolution and large imaging depth. We fabricated a tunable laser based on InAs QDs and demonstrated its effectiveness in OCT applications in terms of high-axial-resolution and large imaging depth.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究によって開発された自己組織化InAs量子ドットベースの波長掃引光源(SS)およびその光源を用いたSS-OCTは、既存のOCTでは困難であった高分解能と高深達度の両立の可能性を示した。この成果により、今後、従来のOCTを超えた性能を有する医療診断ツール開発や、半導体ベースの光源を活かした小型・軽量なOCTの開発などの新たな応用展開が期待される。
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Report
(4 results)
Research Products
(33 results)
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[Journal Article] Development of a broadband superluminescent diode based on self-assembled InAs quantum dots and demonstration of high-axial-resolution optical coherence tomography imaging2019
Author(s)
Nobuhiko Ozaki, Sho Yamauchi, Yuma Hayashi, Eiichiro Watanabe, Hirotaka Ohsato, Naoki Ikeda, Yoshimasa Sugimoto, Kenji Furuki, Yoichi Oikawa, Kunio Miyaji, David T. D. Childs, and Richard A. Hogg
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Journal Title
J. Phys. D: Appl. Phys.
Volume: 52
Issue: 22
Pages: 2251051-9
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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