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We have investigated optical properties of photosensitive polyimide appropriating for long self-written waveguide fabrication. From systematic measurements of absorption properties, it was found that… (More)
Fabrication of optical waveguides by a simple patterning process using photosensitive polyimide (PSPI) is described. Light waveguide based on PSPI was fabricated by photolithographic processing… (More)
New fabrication methods of optical waveguide and light-induced self-written waveguide were developed by using photosensitive polyimide resin. This resin will enable to reduce cost of optical devices… (More)
A Photosensitive polyimide (PSPI) precursor for light-induced self-written (LISW) waveguide based on a poly(amic acid) (PAA) and 1,4-dihydropyridine derivatives (DHP)s has been developed. The PAA was… (More)
A negative-working photosensitive polyimide-precursor (PSPI-precursor) for optical waveguide based on a poly(amic acid) (PAA) and 1, 4-dihydropyridine derivatives (DHP)s has been developed. The PAA… (More)