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Characterization of coplanar poled electro optic polymer films for Si-photonic devices with multiphoton microscopy

  • R. Himmelhuber
  • , S. S. Mehravar
  • , O. D. Herrera
  • , V. Demir
  • , K. Kieu
  • , J. Luo
  • , A. K.Y. Jen
  • , R. A. Norwood
  • , N. Peyghambarian

Research output: Contribution to journalArticlepeer-review

Abstract

We imaged coplanar poled electro optic (EO) polymer films on transparent substrates with a multiple-photon microscope in reflection and correlated the second-harmonic light intensity with the results of Pockels coefficient (r 33) measurements. This allowed us to make quantitative measurements of poled polymer films on non-transparent substrates like silicon, which are not accessible with traditional Pockels coefficient measurement techniques. Phase modulators consisting of silicon waveguide devices with EO polymer claddings with a known Pockels coefficient (from Vπ measurements) were used to validate the correlation between the second-harmonic signal and r 33. This also allowed us to locally map the r33 coefficient in the poled area.

Original languageEnglish (US)
Article number161109
JournalApplied Physics Letters
Volume104
Issue number16
DOIs
StatePublished - Apr 21 2014

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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