Multichannel bandpass filters utilizing multilayer photonic crystal

Yasuo Ohtera, Hirohito Yamada

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We demonstrate multichannel optical bandpass filters utilizing alternating dielectric multilayers stacked on a patterned substrate. A microstructured Si/SiO2 multilayer was formed by rf biased magnetron sputtering process on a fused silica substrate with surface gratings. The bandwidths of each filter channel were measured to be 50 ~ 175 nm in the near infrared region. Control of center wavelength and bandwidth by the grating pitch was verified.

Original languageEnglish
Pages (from-to)1235-1237
Number of pages3
JournalOptics Letters
Issue number8
Publication statusPublished - 2013 Apr 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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