On the nature of photoluminescence in Bismuth doped silica glass

Laguta, Oleksii V.; Hamzaoui, Hicham El; Bouazaoui, Mohamed; Arion, Vladimir B.; Razdobreev, Igor M.

Type de document :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1038/s41598-017-03464-8

Titre :

On the nature of photoluminescence in Bismuth doped silica glass

Auteur(s) :

Laguta, Oleksii V. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Hamzaoui, Hicham El [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bouazaoui, Mohamed [Auteur]

Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Arion, Vladimir B. [Auteur]
Universität Wien = University of Vienna
Razdobreev, Igor M. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Titre de la revue :

SCIENTIFIC REPORTS

Pagination :

3178

Éditeur :

Nature Publishing Group

Date de publication :

2017-06-09

ISSN :

2045-2322

Mot(s)-clé(s) en anglais :

Sol-Gel
Bimuth
Silica glasses

Discipline(s) HAL :

Physique [physics]

Résumé en anglais : [en]

We report on the investigation of Bismuth-doped pure silica glass without other co-dopant by thetech- nique of magnetic circular dichroism (MCD), which allows the direct probing of the ground state ofoptical centres. Taking ...
Lire la suite >We report on the investigation of Bismuth-doped pure silica glass without other co-dopant by thetech- nique of magnetic circular dichroism (MCD), which allows the direct probing of the ground state ofoptical centres. Taking into account the results of conventional optical spectroscopy, we show that theobserved MCD bands belong to the centre responsible for the red photoluminescence in this material.Measurements of the temperature and field dependences indicate that the MCD effect is caused by theeven-electron system. This, however, opposes the widespread opinion that Bi2+ ions are the origin ofred photoluminescence in Bismuth-doped silica glasses. On the other hand, the lasing centre responsiblefor the near infrared photoluminescence does not exhibit any magnetic optical activity connectedto its ground state. As a consequence, we conclude that the ground state of lasing centre is a magneticsinglet with the effective spin S = 0.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Projet ANR :

Bismuth-doped Optical fibres. Advanced Technology and Spectroscopy.

Collections :