Li-impurity effect in optical spectra of KTaO3:Er3+ crystals


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Аннотация

The f–f absorption and emission spectra of Er3+ impurities were observed and identified in KTaO3 and K1 – xLixTaO3 single crystals. It was shown that Li off-centers related random fields markedly influence intensity, width and position of zero-phonon lines. The detail analysis of the absorption spectra obtained allowed one to determine energies of the Stark sublevels of excited states for Er3+ dominant centers of noncubic symmetry.

Авторлар туралы

A. Skvortsov

Ioffe Institute Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: a.skvortsov@mail.ioffe.ru
Ресей, St. Petersburg, 194021

Z. Potůček

Institute of Physics AS CR, v. v. i.; Faculty of Nuclear Sciences and Physical Engineering

Email: a.skvortsov@mail.ioffe.ru
Чехия, Praha 8, CZ-18221; Praha 2, CZ-12000

N. Poletaev

Ioffe Institute Russian Academy of Sciences

Email: a.skvortsov@mail.ioffe.ru
Ресей, St. Petersburg, 194021

P. Syrnikov

Ioffe Institute Russian Academy of Sciences

Email: a.skvortsov@mail.ioffe.ru
Ресей, St. Petersburg, 194021

Z. Bryknar

Faculty of Nuclear Sciences and Physical Engineering

Email: a.skvortsov@mail.ioffe.ru
Чехия, Praha 2, CZ-12000

A. Dejneka

Institute of Physics AS CR, v. v. i.

Email: a.skvortsov@mail.ioffe.ru
Чехия, Praha 8, CZ-18221

L. Jastrabik

Institute of Physics AS CR, v. v. i.

Email: a.skvortsov@mail.ioffe.ru
Чехия, Praha 8, CZ-18221

V. Trepakov

Ioffe Institute Russian Academy of Sciences; Institute of Physics AS CR, v. v. i.

Email: a.skvortsov@mail.ioffe.ru
Ресей, St. Petersburg, 194021; Praha 8, CZ-18221

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