APL Materials (Apr 2019)

High-order harmonic generation from hybrid organic–inorganic perovskite thin films

  • Hideki Hirori,
  • Peiyu Xia,
  • Yasushi Shinohara,
  • Tomohito Otobe,
  • Yasuyuki Sanari,
  • Hirokazu Tahara,
  • Nobuhisa Ishii,
  • Jiro Itatani,
  • Kenichi L. Ishikawa,
  • Tomoko Aharen,
  • Masashi Ozaki,
  • Atsushi Wakamiya,
  • Yoshihiko Kanemitsu

DOI
https://doi.org/10.1063/1.5090935
Journal volume & issue
Vol. 7, no. 4
pp. 041107 – 041107-4

Abstract

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The generation of high-order harmonics from hybrid organic–inorganic perovskites (HOIPs) is demonstrated by the excitation with a strong mid-infrared laser pulse. We prepare three types of HOIP polycrystalline thin film samples by solution processes (MAPbX3; MA = CH3NH3+; X = I, Br, Cl). The high-order harmonics from the sample (MAPbBr3) are more than tenfold stronger than those from the well-studied GaSe crystal despite their comparable bandgap energies, implying that the stronger band-to-band transition of the HOIPs causes the higher yields.