Low loss optical waveguiding in large single crystals of a thiophene-based oligomer

Sajedeh Motamen, Christian Schoerner, Dominic Raithel, Jean-Pierre Malval, Thibaut Jarrosson, Francoise Serein-Spirau, Laurent Simon, Richard Hildner, Guenter Reiter*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Active optical waveguides based on functional small organic molecules in micro/nano regime have attracted great interest for their potential applications in high speed miniaturized photonic integrations. Here, we report on the active waveguiding properties of millimeter sized single crystals of a newly synthesized thiophene-based oligomer. These large crystals exhibit low optical loss compared to other organic nanostructures, and optical losses depend on the emission energy. Moreover, we find that the coupling of photoluminescence to waveguide modes is very efficient, typically greater than 40%. These features indicate that such perfect single crystals with a low density of defects and extremely smooth surfaces exhibit low propagation loss, which makes them good candidates for the design and the fabrication of novel organic optical fibers and lasers.

Original languageEnglish
Pages (from-to)15980-15987
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume19
Issue number24
DOIs
Publication statusPublished - 28-Jun-2017
Externally publishedYes

Keywords

  • ORGANIC SEMICONDUCTOR
  • LIGHT-PROPAGATION
  • MOLECULAR DESIGN
  • wave guide
  • NANOWIRES
  • EMISSION
  • NANOMATERIALS

Cite this