Nanophotonic code embedded in embossed hologram for hierarchical information retrieval

Naoya Tate, Makoto Naruse, Takashi Yatsui, Tadashi Kawazoe, Morihisa Hoga, Yasuyuki Ohyagi, Tokuhiro Fukuyama, Mitsuru Kitamura, Motoichi Ohtsu

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A hierarchical hologram works in both optical far-fields and near-fields, the former being associated with conventional holographic images, and the latter being associated with the optical intensity distribution based on a nanometric structure that is accessible only via optical nearfields. We propose embedding a nanophotonic code, which is retrievable via optical near-field interactions involving nanometric structures, within an embossed hologram. Due to the one-dimensional grid structure of the hologram, evident polarization dependence appears in retrieving the code. Here we describe the basic concepts, numerical simulations, and experimental results in fabrication of a prototype hierarchical hologram and describe its optical characterization.

Original languageEnglish
Pages (from-to)7497-7505
Number of pages9
JournalOptics Express
Volume18
Issue number7
DOIs
Publication statusPublished - Mar 29 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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