JP5373278B2 - プラズモン効果による光学符号化装置およびこの装置を使用した認証方法 - Google Patents
プラズモン効果による光学符号化装置およびこの装置を使用した認証方法 Download PDFInfo
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/648—Specially adapted constructive features of fluorimeters using evanescent coupling or surface plasmon coupling for the excitation of fluorescence
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- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Description
この符号化実体は、マーキングされる媒体とは別に、即座に製造することができる。マーキングの際、前記媒体で被着させるまたは一体化させることが十分である。したがってこのような発光団/表面プラズモン効果粒子の組合せは、紙、ガラス、プラスチックなどの異なる材料をマーキングするのに使用することができる。
所定のおよび安定構造を有する物理的実体内の発光団および表面プラズモン効果粒子の共存は、これら2つの分子の間の相互作用、特にスペクトルの変更の際に重要な役割を果たす、その距離を最適に調節するように働く。
・ローダミン-B-イソチオシアネート(RBITC)、フルオレセインイソチオシアネート(FITC)、フルオレセイン、ローダミン、エオシン、ピラミン、アミノGからなる群から選択した有機発光団、
・ZnO、ZnS、CdSe、InGaP、InP、Si、Ge、GaAs、GaP、GaAsPのナノ結晶、
・Y2O3:Eu、Y2O2S:Eu、BaMgAl16O17:Eu、GdBO3:Eu、YGdBO3:Eu、YPVO4:Eu、Gd2O3:Tb、Gd2O2S:Tb、Y3Al5O12:Tb、Y2SiO5:Ce、LaPO4:Tb、Ceなどの希土イオンでドーピングした酸化物、硫化物、リン酸塩またはバナジウム塩基質、および
・ZnS:Mn、ZnS:Au、ZnS:Al、ZnS:Ag、ZnO:Ag、ZnO:Cu、ZnO:Mn、Zn2SiO4:Mn、Al2O3:Cr、Al2O3:Tiなどの遷移金属でドーピングした半導体または酸化物基質
から選択される。
・赤外線、可視または紫外線光線を放射する光源を使用して前記物体を照射するステップと、
・スペクトル検出器を使用して前記物体によって再び放射される光線を感知するステップと、
・前記物体によって放射された発光スペクトルを基準スペクトルと比較するステップと、
・前記物体の認証または非認証を示すステップと
を含んでいる。
110 凝集体
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210 凝集体
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320 凝集体
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440 凝集体
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470 凝集体
480 凝集体
490 凝集体
500 凝集体
520 凝集体
612 発光スペクトル
Claims (14)
- 発光によって赤外線、可視または紫外線光線を放射するのに適した複数の凝集体であって、少なくとも1つが少なくとも1つの発光団を含んでいる凝集体を備えており、さらに表面プラズモン効果材料からなる少なくとも1つの粒子を含んでおり、前記発光団および前記粒子は相互作用を始めるのに適切である光学符号化装置であって、前記光学符号化装置は前記少なくとも1つの凝集体を含むビーズ形態を有し、かつ前記少なくとも1つの凝集体をカプセル化するエンベロープであって、赤外線、可視または紫外線光線に対して透過性がある材料からなるエンベロープを含んでいることを特徴とする光学符号化装置。
- 前記発光団および前記表面プラズモン効果粒子の間の距離は30nmより短いことを特徴とする、請求項1に記載の光学符号化装置。
- 前記発光団および前記表面プラズモン効果粒子は接触していることを特徴とする、請求項1から2の一項に記載の光学符号化装置。
- 分離層は前記発光団および/または前記表面プラズモン効果粒子を覆い、前記分離層は、赤外線、可視または紫外線光線に対して透過性がある材料からなることを特徴とする、請求項1から3の一項に記載の光学符号化装置。
- 前記凝集体は、200nmより小さい寸法を有することを特徴とする、請求項1から4の一項に記載の光学符号化装置。
- 前記粒子は、前記発光団の放射スペクトルを全体的にまたは部分的に含むエネルギーを有するスペクトルにより励起される場合に、表面プラズモン効果を示すのに適切であることを特徴とする、請求項1から5の一項に記載の光学符号化装置。
- 前記粒子は、金、銀、銅、アルミニウムおよびナトリウムからなる群から選択した、高密度および高電子移動性を有する導電金属を含んでいることを特徴とする、請求項6に記載の光学符号化装置。
- 前記表面プラズモン効果粒子は、前記発光団の前記発光スペクトルに適切な表面プラズモン効果を示すのに適切な光学共振装置を形成するために、金、銀および銅からなる群から選択した、高密度および高電子移動性を有する導電金属フィルムに含まれる誘電または半導体材料でできているナノ粒子を含んでいることを特徴とする、請求項1から6の一項に記載の光学符号化装置。
- 前記ナノ粒子は、ポリマー、またはポリシロキサン(SiO2)、酸化ジルコニウム(ZrO2)またはアルミナ(Al2O3)などの無機酸化物を含んでいることを特徴とする、請求項8に記載の光学符号化装置。
- 前記発光団は、
ローダミン-B-イソチオシアネート(RBITC)、フルオレセインイソチオシアネート(FITC)、フルオレセイン、ローダミン、エオシン、ピラミン、アミノGからなる群から選択した有機発光団、
ZnO、ZnS、CdSe、InGaP、InP、Si、Ge、GaAs、GaP、GaAsPのナノ結晶、
Y2O3:Eu、Y2O2S:Eu、BaMgAl16O17:Eu、GdBO3:Eu、YGdBO3:Eu、YPVO4:Eu、Gd2O3:Tb、Gd2O2S:Tb、Y3Al5O12:Tb、Y2SiO5:Ce、LaPO4:Tb、Ceなどの希土イオンでドーピングした酸化物、硫化物、リン酸塩またはバナジウム塩基質、および
ZnS:Mn、ZnS:Au、ZnS:Al、ZnS:Ag、ZnO:Ag、ZnO:Cu、ZnO:Mn、Zn2SiO4:Mn、Al2O3:Cr、Al2O3:Tiなどの遷移金属でドーピングした半導体または酸化物基質
から選択されることを特徴とする、請求項1から9の一項に記載の光学符号化装置。 - 前記分離層は、ポリマー、またはポリシロキサン(SiO2)、酸化ジルコニウム(ZrO2)またはアルミナ(Al2O3)などの無機酸化物からなることを特徴とする、請求項4から10の一項に記載の光学符号化装置。
- 前記エンベロープは、ポリシロキサン(SiO2)、酸化ジルコニウム(ZrO2)またはアルミナ(Al2O3)などの無機酸化物からなることを特徴とする、請求項1から11の一項に記載の光学符号化装置。
- 織物、紙、ガラスまたはプラスチックなどの物体をマーキングする方法であって、前記物体に請求項1から12の一項に記載の光学符号化装置を結合させるステップを含むことを特徴とする方法。
- 赤外線、可視または紫外線光線を放射する光源を使用して前記物体を照射するステップと、
スペクトル検出器を使用して前記物体によって再び放射される光線を感知するステップと、
前記物体によって放射された発光スペクトルを基準スペクトルと比較するステップと、
前記物体の認証または非認証を示すステップとを含むことを特徴とする、請求項1から12の一項に記載の光学符号化装置を一体化する、織物、紙、ガラスまたはプラスチックなどの前記物体を認証する方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0655888A FR2910632B1 (fr) | 2006-12-22 | 2006-12-22 | Dispositif de codage optique par effet plasmon et methode d'authentification le mettant en oeuvre |
FR0655888 | 2006-12-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008185580A JP2008185580A (ja) | 2008-08-14 |
JP2008185580A5 JP2008185580A5 (ja) | 2013-09-12 |
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CN101206776A (zh) | 2008-06-25 |
FR2910632B1 (fr) | 2010-08-27 |
US20080149850A1 (en) | 2008-06-26 |
CA2610519A1 (fr) | 2008-06-22 |
CA2610519C (fr) | 2014-09-23 |
EP1936360B1 (fr) | 2016-02-17 |
JP2008185580A (ja) | 2008-08-14 |
EP1936360A1 (fr) | 2008-06-25 |
CN101206776B (zh) | 2012-08-22 |
US7863584B2 (en) | 2011-01-04 |
FR2910632A1 (fr) | 2008-06-27 |
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