JP4947253B2 - プラズモン共鳴構造体及びその製造方法 - Google Patents
プラズモン共鳴構造体及びその製造方法 Download PDFInfo
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- G01N21/55—Specular reflectivity
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Description
応用物理第73巻第10号(2004)「表面プラズモンポラリトンの伝播と制御」P1275-1284
a,金属ナノ粒子層の層数が多いほど、吸光度が高くなる。
b,金属ナノ粒子及び誘電体粒子の粒径が大きいほど、吸光度が高くなる。
(6)実験例6・・・金属ナノ粒子14としてCu(銅),誘電体粒子としてSiO2を使用し、各粒子を前記実験例5と同等の大きさとしてサンプルを作製する。全体で、金属粒子層5層、誘電体粒子層4層とすると、波長655nmで吸光度0.368となる。
(7)実験例7・・・実験例6において、金属粒子層を15層、誘電体粒子層14層に変更すると、波長612nmで吸光度0.873となる。
このように、Cuを用いた場合であっても、前記実験例1と2の対比に見られるように、金属ナノ粒子層の層数が多いほど、吸光度が高くなるという傾向が得られる。
なお、本発明は上述した実施例に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることができる。例えば、前記実施例で示した材料や製造方法は、いずれも一例であり、同様の作用を奏する公知の材料や製造方法を適用してよい。金属ナノ粒子層や誘電体粒子層の形成方向についていえば、前記実施例では、一例としてスパッタリングを挙げたが、蒸着法や、CVD法などの気相蒸着技術によって各粒子層を形成するようにしてもよい。
11:ガラス基板
12:誘電体層
14:金属ナノ粒子
16:誘電体粒子
18:誘電体層
100:プラズモン共鳴構造体
102:誘電体層
900:誘電体膜
902:ナノ微粒子,
L100:ナノ積層体
L102:ナノ積層体
LA,LC,・・・,LN:金属ナノ粒子層
LB,LD,・・・,LN−1:誘電体粒子層
PD:誘電体粒子層
PM:金属ナノ粒子層
Claims (6)
- 金属ナノ粒子によって構成された金属ナノ粒子層により、膜の厚み方向とその直交方向に個別のモードで局在表面プラズモン共鳴が生ずるプラズモン共鳴構造体であって、
前記金属ナノ粒子層の間に、金属ナノ粒子の間隔および離間方向を調整するための誘電体ナノ粒子によって構成された誘電体層を形成したことを特徴とするプラズモン共鳴構造体。 - 前記金属ナノ粒子は、厚みと垂直な方向に離間しており、その間隔は、金属ナノ粒子の粒径の2倍もしくはそれ以下であることを特徴とする請求項1 記載のプラズモン共鳴構造体。
- 前記金属ナノ粒子の離間している間隔は、金属ナノ粒子の粒径と同等もしくはそれ以下であることを特徴とする請求項2記載のプラズモン共鳴構造体。
- 前記誘電体ナノ粒子は、前記金属ナノ粒子と、略同等の粒径を有することを特徴とする請求項1記載のプラズモン共鳴構造体。
- 前記金属ナノ粒子層と、前記誘電体層を、交互に複数積層したことを特徴とする請求項3記載のプラズモン共鳴構造体。
- 請求項1〜5のいずれかに記載のプラズモン共鳴構造体の製造方法であって、
前記金属ナノ粒子層と前記誘電体層を、気相蒸着法で形成する際に、
成膜時間を調整することで、金属ナノ粒子及び誘電体ナノ粒子の粒径を調整するとともに、基板温度を調整することで、金属ナノ粒子及び誘電体ナノ粒子の粒子間距離を調整することを特徴とするプラズモン共鳴構造体の製造方法。
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JP2005176899A JP4947253B2 (ja) | 2005-06-16 | 2005-06-16 | プラズモン共鳴構造体及びその製造方法 |
US11/424,785 US7486400B2 (en) | 2005-06-16 | 2006-06-16 | Plasmon resonance structure with metal nanoparticle layers |
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Cited By (2)
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KR101421130B1 (ko) * | 2012-11-14 | 2014-07-18 | 한국과학기술연구원 | 나노선 박막, 나노선 및 물리 증착법을 이용한 나노선 박막의 제조방법 |
KR101499487B1 (ko) | 2013-10-31 | 2015-03-18 | 한국과학기술연구원 | 플라즈모닉 나노 칼라 코팅층 및 이의 형성 방법 |
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JP4779152B2 (ja) * | 2005-08-31 | 2011-09-28 | 独立行政法人産業技術総合研究所 | 超高密度貴金属又は磁性金属ナノ粒子分散コンポジット薄膜、同薄膜を用いた高感度分子検出用基板及び同薄膜の製造方法 |
JP4984166B2 (ja) * | 2007-02-19 | 2012-07-25 | 独立行政法人産業技術総合研究所 | 超高密度貴金属ナノ粒子分散コンポジット薄膜を用いたセンサ及びセンサシステム |
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JPH05142605A (ja) * | 1991-11-18 | 1993-06-11 | Matsushita Electric Ind Co Ltd | 非線形光学材料およびその製造方法 |
JPH0895099A (ja) * | 1994-09-27 | 1996-04-12 | Sumitomo Electric Ind Ltd | 非線形光学積層体の製造方法 |
JP3972410B2 (ja) * | 1997-06-06 | 2007-09-05 | 株式会社日立製作所 | 反射鏡 |
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Cited By (3)
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KR101421130B1 (ko) * | 2012-11-14 | 2014-07-18 | 한국과학기술연구원 | 나노선 박막, 나노선 및 물리 증착법을 이용한 나노선 박막의 제조방법 |
KR101499487B1 (ko) | 2013-10-31 | 2015-03-18 | 한국과학기술연구원 | 플라즈모닉 나노 칼라 코팅층 및 이의 형성 방법 |
US9482798B2 (en) | 2013-10-31 | 2016-11-01 | Korea Institute Of Science And Technology | Plasmonic nano-color coating layer and method for fabricating the same |
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US20060274315A1 (en) | 2006-12-07 |
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