Fabrication method of two-photon luminescent organic nano-architectures using electron-beam irradiation

Yoshio Kamura, Kohei Imura

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Optical recording on organic thin films with a high spatial resolution is promising for high-density optical memories, optical computing, and security systems. The spatial resolution of the optical recording is limited by the diffraction of light. Electrons can be focused to a nanometer-sized spot, providing the potential for achieving better resolution. In conventional electron-beam lithography, however, optical tuning of the fabricated structures is limited mostly to metals and semiconductors rather than organic materials. In this article, we report a fabrication method of luminescent organic architectures using a focused electron beam. We optimized the fabrication conditions of the electron beam to generate chemical species showing visible photoluminescence via two-photon near-infrared excitations. We utilized this fabrication method to draw nanoscale optical architectures on a polystyrene thin film.

Original languageEnglish
Article number243104
JournalApplied Physics Letters
Issue number24
Publication statusPublished - 2018 Jun 11

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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