Polarization-selective three-photon absorption and subsequent photoluminescence in CsPbBr3 single crystal at room temperature

D. J. Clark, C. C. Stoumpos, F. O. Saouma, Mercouri G Kanatzidis, J. I. Jang

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We report on highly polarization-selective three-photon absorption (3PA) in a Bridgman-grown single crystal of CsPbBr3 oriented along the (112) direction, which is an inorganic counterpart to emerging organic-inorganic hybrid halide perovskites for solar-cell and optoelectronic applications. The crystal exhibits strong photoluminescence (PL) at room temperature as a direct consequence of 3PA of fundamental radiation. Interestingly, 3PA disappears when the input polarization is parallel to the (-110) direction. This 3PA effect is strongest when orthogonal to (-110) and the corresponding 3PA coefficient was measured to be γ=0.14±0.03cm3/GW2 under picosecond-pulse excitation at the fundamental wavelength of λ=1200 nm. The laser-induced damage threshold was also determined to be about 20 GW/cm2 at the same wavelength. Based on relative PL intensities upon λ tuning over the entire 3PA range (1100-1700 nm), we determined the nonlinear optical dispersion of the 3PA coefficient for CsPbBr3, which is consistent with a theoretical prediction. Experimentally observed significant polarization dependence of γ was explained by relevant selection rules. The perovskite is potentially important for nonlinear optical applications owing to its highly efficient 3PA-induced PL response with a sharp on/off ratio by active polarization control.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume93
Issue number19
DOIs
Publication statusPublished - May 5 2016

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Photoluminescence
Photons
Single crystals
Polarization
photoluminescence
single crystals
photons
room temperature
polarization
Wavelength
Temperature
Laser damage
picosecond pulses
yield point
perovskites
coefficients
wavelengths
Optoelectronic devices
Perovskite
halides

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Polarization-selective three-photon absorption and subsequent photoluminescence in CsPbBr3 single crystal at room temperature. / Clark, D. J.; Stoumpos, C. C.; Saouma, F. O.; Kanatzidis, Mercouri G; Jang, J. I.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 93, No. 19, 05.05.2016.

Research output: Contribution to journalArticle

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