Waveguide electro-optic modulators based on intrinsically polar self-assembled superlattices (SASs)

Zhifu Liu*, Seng Tiong Ho, Seongsik Chang, Yiguang Zhao, Tobin J. Marks, Hu Kang, Milko E. Van der Boom, Peiwang Zhu

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


In this paper we describe methods of fabricating and characterizing organic electro-optic modulators based on intrinsically polar self-assembled superlattices. These structures are intrinsically acentric, and exhibit large second harmonic generation and electro-optic responses without the requirement of poling by an external electric field. A novel wet chemical protection-deprotection approach for the growth of self-assembled superlattices has been developed, and the refractive indices of self-assembled organic electro-optic superlattices may be tuned during the self-assembly process. Prototype electro-optic modulators based on chromophoric self-assembled superlattices have been designed and fabricated. The effective electro-optic coefficient of the self-assembled superlattice film in a phase modulator is estimated as about 20 pm/V at a wavelength of 1064 nm.

Original languageEnglish (US)
Pages (from-to)151-162
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 2002
EventLinear and Nonlinear Optics of Organic Materials II - Seattle, WA, United States
Duration: Jul 9 2002Jul 11 2002


  • Electro-optic materials
  • Electro-optic modulators
  • Polymer thin films
  • Self-assembled superlattices

ASJC Scopus subject areas

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


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