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Random lasing in ZnO self-organized nanoparticles produced by laser induced breakdown. / Vasilyev, Nikolay; Borisov, E. N.; Novikov, B. V.; Akopyan, I. Kh; Novikov, B. V.

In: Journal of Luminescence, Vol. 215, 116668, 11.2019.

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@article{52b3e521524f4c72a4d9b0d027896dbc,
title = "Random lasing in ZnO self-organized nanoparticles produced by laser induced breakdown",
abstract = "A simple laser-assisted method to transform metallic Zn to a ZnO-based random lasing medium is reported. The method uses Nd+3 laser-induced air breakdown to treat the surface of a Zn target in oxygen atmosphere, and thus produce self-organized nanoparticles (tubes, needles etc.) over nearby area. Room temperature photoluminescence spectra of the nanoparticles exhibit the emission band at 395 nm with semi-regular narrow spikes (<1 nm) with low threshold and non-linear growth with power greater 2 at photo excitation increase, which is typical for multi-mode lasing. Estimation of electron-hole pair concentration and temperature dependence of the average lasing energy prove that the lasing is originated from a scattering of free electrons on electron-hole pairs correlated. It was shown that self-organized nanoparticles exhibited better conditions for the lasing through stronger light scattering and guiding.",
keywords = "Electron-pair scattering, Nanoparticles, Random lasing, Self-organization, ZnO, ROOM-TEMPERATURE, PHOTOLUMINESCENCE, EXCITATION, QUANTUM, ZINC-OXIDE, LIGHT, EPITAXY, STIMULATED-EMISSION, CDS, GAIN",
author = "Nikolay Vasilyev and Borisov, {E. N.} and Novikov, {B. V.} and Akopyan, {I. Kh} and Novikov, {B. V.}",
year = "2019",
month = nov,
doi = "10.1016/j.jlumin.2019.116668",
language = "English",
volume = "215",
journal = "Journal of Luminescence",
issn = "0022-2313",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Random lasing in ZnO self-organized nanoparticles produced by laser induced breakdown

AU - Vasilyev, Nikolay

AU - Borisov, E. N.

AU - Novikov, B. V.

AU - Akopyan, I. Kh

AU - Novikov, B. V.

PY - 2019/11

Y1 - 2019/11

N2 - A simple laser-assisted method to transform metallic Zn to a ZnO-based random lasing medium is reported. The method uses Nd+3 laser-induced air breakdown to treat the surface of a Zn target in oxygen atmosphere, and thus produce self-organized nanoparticles (tubes, needles etc.) over nearby area. Room temperature photoluminescence spectra of the nanoparticles exhibit the emission band at 395 nm with semi-regular narrow spikes (<1 nm) with low threshold and non-linear growth with power greater 2 at photo excitation increase, which is typical for multi-mode lasing. Estimation of electron-hole pair concentration and temperature dependence of the average lasing energy prove that the lasing is originated from a scattering of free electrons on electron-hole pairs correlated. It was shown that self-organized nanoparticles exhibited better conditions for the lasing through stronger light scattering and guiding.

AB - A simple laser-assisted method to transform metallic Zn to a ZnO-based random lasing medium is reported. The method uses Nd+3 laser-induced air breakdown to treat the surface of a Zn target in oxygen atmosphere, and thus produce self-organized nanoparticles (tubes, needles etc.) over nearby area. Room temperature photoluminescence spectra of the nanoparticles exhibit the emission band at 395 nm with semi-regular narrow spikes (<1 nm) with low threshold and non-linear growth with power greater 2 at photo excitation increase, which is typical for multi-mode lasing. Estimation of electron-hole pair concentration and temperature dependence of the average lasing energy prove that the lasing is originated from a scattering of free electrons on electron-hole pairs correlated. It was shown that self-organized nanoparticles exhibited better conditions for the lasing through stronger light scattering and guiding.

KW - Electron-pair scattering

KW - Nanoparticles

KW - Random lasing

KW - Self-organization

KW - ZnO

KW - ROOM-TEMPERATURE

KW - PHOTOLUMINESCENCE

KW - EXCITATION

KW - QUANTUM

KW - ZINC-OXIDE

KW - LIGHT

KW - EPITAXY

KW - STIMULATED-EMISSION

KW - CDS

KW - GAIN

UR - http://www.scopus.com/inward/record.url?scp=85070238331&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/random-lasing-zno-selforganized-nanoparticles-produced-laser-induced-breakdown

U2 - 10.1016/j.jlumin.2019.116668

DO - 10.1016/j.jlumin.2019.116668

M3 - Article

AN - SCOPUS:85070238331

VL - 215

JO - Journal of Luminescence

JF - Journal of Luminescence

SN - 0022-2313

M1 - 116668

ER -

ID: 48581594