Broadband studies of the strong mid-infrared nonlinear optical responses of KPSe6

J. I. Jang, A. S. Haynes, F. O. Saouma, C. O. Otieno, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

One-dimensional noncentrosymmetric KPSe6 is an excellent mid-infrared (mid-IR) nonlinear optical (NLO) material possessing reversible phase-change behavior. In this special issue we present a broadband NLO study on its crystalline and glassy phases as well as fundamental material characterizations. The compound has a bandgap of ~ 2.1 eV and exhibits intrinsic second harmonic generation even in the glassy phase. The crystalline compound is type-I phase-matchable and shows strong second- and third-order NLO responses over a broad wavelength range (1.0-3.0 μm) with excellent optical transparency. Based on the measured NLO coefficients χ(2) ≲ 142.8 pm/V and χ(3) ≲ 4.7 × 105 pm2/V2, we propose that KPSe6 can be utilized for numerous mid-IR NLO applications.

Original languageEnglish
Pages (from-to)1302-1312
Number of pages11
JournalOptical Materials Express
Volume3
Issue number9
DOIs
Publication statusPublished - 2013

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Crystalline materials
Infrared radiation
Optical materials
Harmonic generation
Transparency
Energy gap
Wavelength

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Broadband studies of the strong mid-infrared nonlinear optical responses of KPSe6. / Jang, J. I.; Haynes, A. S.; Saouma, F. O.; Otieno, C. O.; Kanatzidis, Mercouri G.

In: Optical Materials Express, Vol. 3, No. 9, 2013, p. 1302-1312.

Research output: Contribution to journalArticle

Jang, J. I. ; Haynes, A. S. ; Saouma, F. O. ; Otieno, C. O. ; Kanatzidis, Mercouri G. / Broadband studies of the strong mid-infrared nonlinear optical responses of KPSe6. In: Optical Materials Express. 2013 ; Vol. 3, No. 9. pp. 1302-1312.
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