TY - JOUR
T1 - Non-scanning optical near-field microscopy for nanophotonic security
AU - Tate, Naoya
AU - Naruse, Makoto
AU - Matsumoto, Tsutomu
AU - Hoga, Morihisa
AU - Ohyagi, Yasuyuki
AU - Nishio, Shumpei
AU - Nomura, Wataru
AU - Ohtsu, Motoichi
N1 - Funding Information:
The authors wish to thank Y. Pihosh, K. Mawatari, and T. Kitamori in the Department of Applied Chemistry at The University of Tokyo for their technical assistance in preparing the Al nanorods used for our experimental demonstrations. This work was partially supported by the JSPS Core-to-Core Program (A. Advanced Research Networks).
Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2015.
PY - 2015
Y1 - 2015
N2 - We propose a novel method for observing and utilizing nanometrically fluctuating signals due to optical near-field interactions between a probe and target in nearfield optical microscopy. Based on a hierarchical structure of the interactions, it is possible to obtain signals that represent two-dimensional spatial patterns without requiring any scanning process. Such signals reveal individual features of each target, and these features, when appropriately extracted and defined, can be used in security applications-an approach that we call nanophotonic security. As an experimental demonstration, output signals due to interactions between a SiO2 probe and Al nanorods were observed by using near-field optical microscopy at a single readout point, and these signals were quantitatively evaluated using an algorithm that we developed for extracting and defining features that can be used for security applications.
AB - We propose a novel method for observing and utilizing nanometrically fluctuating signals due to optical near-field interactions between a probe and target in nearfield optical microscopy. Based on a hierarchical structure of the interactions, it is possible to obtain signals that represent two-dimensional spatial patterns without requiring any scanning process. Such signals reveal individual features of each target, and these features, when appropriately extracted and defined, can be used in security applications-an approach that we call nanophotonic security. As an experimental demonstration, output signals due to interactions between a SiO2 probe and Al nanorods were observed by using near-field optical microscopy at a single readout point, and these signals were quantitatively evaluated using an algorithm that we developed for extracting and defining features that can be used for security applications.
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U2 - 10.1007/s00339-015-9387-6
DO - 10.1007/s00339-015-9387-6
M3 - Article
AN - SCOPUS:84948964218
SN - 1939-5981
VL - 9
SP - 1383
EP - 1387
JO - International Journal of Metalcasting
JF - International Journal of Metalcasting
IS - 1
ER -