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
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
VL - 9
SP - 1383
EP - 1387
JO - International Journal of Metalcasting
JF - International Journal of Metalcasting
SN - 1939-5981
IS - 1
ER -