Flexible waveguides composed of PDMS based elastomer by pen-drawing technique for printable optics

K. Nakakubo, H. Inoue, H. Yoshioka, K. Morita, T. Kotani, Y. Oki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


Super-PDMS with solvent dispersibility promises flexible PDMS-based waveguides in both the cladding and the core. The PDMS can fabricate a micro ∼ submicron scale structure easily like waveguide by wet process, as oppose to conventional PDMS which uses imprinting to create microstructures. The refractive index of the PDMS is about 0.1 higher than that of conventional one. Super PDMS solutions dispersed in 1,2 dichloroethane solvent maintained transparent crystals in spontaneous drying after drawing, even at a high concentration of 15 wt.%. A flexible PDMS waveguide with a conventional PDMS cladding and a super PDMS core propagated light even with a waveguide bend radius of 2.5 mm, which is smaller than the minimum bend radius of a typical optical fiber.

Original languageEnglish
Title of host publicationOptical Components and Materials XVIII
EditorsShibin Jiang, Michel J. F. Digonnet
ISBN (Electronic)9781510641990
Publication statusPublished - 2021
EventOptical Components and Materials XVIII 2021 - Virtual, Online, United States
Duration: Mar 6 2021Mar 11 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical Components and Materials XVIII 2021
Country/TerritoryUnited States
CityVirtual, Online

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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