TY - JOUR
T1 - Optical properties of Pb0.52Zr0.48TiO3 nanorod arrays
T2 - Second harmonic generation and multiphoton carrier dynamics
AU - Mudiyanselage, Rathsara R.H.H.
AU - Burton, John
AU - Magill, Brenden A.
AU - McMillan, Kiara
AU - Gagliano, Gabriella
AU - Morral, Ada J.
AU - Kang, Min Gyu
AU - Kang, Han Byul
AU - Priya, Shashank
AU - Stanton, Christopher J.
AU - Khodaparast, Giti A.
N1 - Publisher Copyright:
© JPhys Complexity 2021. All rights reserved.
PY - 2021/7
Y1 - 2021/7
N2 - Nonlinear optical properties of poled and unpoled, lead zirconate-Titanate (Pb0.52Zr0.48TiO3) nanorod arrays, grown on Pt-coated Si with 200 nm diameter and 600 nm height, were investigated. Clear signatures of second harmonic generations (SHG), from 490 525 nm (2.38 2.53 eV) at room temperature, were observed. Furthermore, time resolved differential reflectivity measurements were performed to study dynamical properties of photoexcited carriers in the range of 690 1000 nm where multiphoton processes were responsible for the photo-excitations. We compared this excitation scheme, which is sensitive mainly to the surface states, to when the photoexcited energy (3.1 eV) was close to the band gap of the nanorods. Our results offer promises for employing these nanostructures in nonlinear photonic applications.
AB - Nonlinear optical properties of poled and unpoled, lead zirconate-Titanate (Pb0.52Zr0.48TiO3) nanorod arrays, grown on Pt-coated Si with 200 nm diameter and 600 nm height, were investigated. Clear signatures of second harmonic generations (SHG), from 490 525 nm (2.38 2.53 eV) at room temperature, were observed. Furthermore, time resolved differential reflectivity measurements were performed to study dynamical properties of photoexcited carriers in the range of 690 1000 nm where multiphoton processes were responsible for the photo-excitations. We compared this excitation scheme, which is sensitive mainly to the surface states, to when the photoexcited energy (3.1 eV) was close to the band gap of the nanorods. Our results offer promises for employing these nanostructures in nonlinear photonic applications.
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U2 - 10.1088/2515-7647/ac023a
DO - 10.1088/2515-7647/ac023a
M3 - Article
AN - SCOPUS:85109088732
SN - 2515-7647
VL - 3
JO - JPhys Photonics
JF - JPhys Photonics
IS - 3
M1 - e034012
ER -