Second and third harmonic generation in few-layer gallium telluride characterized by multiphoton microscopy

Research output: Contribution to journalArticle


  • Jannatul Susoma
  • Lasse Karvonen
  • Antti Säynätjoki
  • Soroush Mehravar
  • Robert A. Norwood
  • Nasser Peyghambarian
  • Khanh Kieu
  • Harri Lipsanen

  • Juha Riikonen

Research units

  • University of Eastern Finland
  • University of Arizona


We report on the nonlinear optical properties of few-layer GaTe studied by multiphoton microscopy. Second and third harmonic generation from few-layer GaTe flakes were observed in this study with the laser pump wavelength of 1560 nm. These processes were found to be sensitive to the number of GaTe layers. The second- and third-order nonlinear susceptibilities of 2.7 × 10-9 esu (1.15 pm/V) and 1.4 × 10-8 esu (2 × 10-16 m2/V2) were estimated, respectively.


Original languageEnglish
Article number073103
Pages (from-to)1-5
Number of pages5
JournalApplied Physics Letters
Issue number7
Publication statusPublished - 15 Feb 2016
MoE publication typeA1 Journal article-refereed

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