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High efficiency and quadratic nonlinear optical properties of a fully optimized 2D octupolar crystal characterized by nonlinear microscopy

  • Véronique Le Floc'h
  • , Sophie Brasselet
  • , Joseph Zyss
  • , Bong Rae Cho
  • , Sang Hae Lee
  • , Seung Joon Jeon
  • , Minhaeng Cho
  • , Kil Sik Min
  • , Myunghyun Paik Suh
  • Ecl. Normale Sup. de Cachan
  • Korea University
  • Seoul National University

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

The high efficiency and quadratic nonlinear optical properties of 2D octupolar crystal of 1,3,5-tricyano-2,4,6-tris(p-diethylaminostyryl)benzene (TTB), which is characterized by nonlinear microscopy, was analyzed. The TTB single crystals were obtained by evaporating a saturated solution of TTB in CH2Cl2-EtOEt. To confirm optically the octupolar crystalline structure and determine the molecular arrangement inside the submillimeter-sized crystal, a polarized nonlinear microscopy technique was applied along with second harmonic generation (SHG) and two-photon fluorescence (TPF). The results show that optical polarization measurements of both SHG and TPF confirmed the non-centrosynmmetric threefold symmetry of the TTB crystal.

Original languageEnglish
Pages (from-to)196-200
Number of pages5
JournalAdvanced Materials
Volume17
Issue number2
DOIs
StatePublished - 31 Jan 2005

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