On the nature of photoluminescence in Bismuth doped silica glass

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

Document type :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1038/s41598-017-03464-8

Title :

On the nature of photoluminescence in Bismuth doped silica glass

Author(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]

Journal title :

SCIENTIFIC REPORTS

Pages :

3178

Publisher :

Nature Publishing Group

Publication date :

2017-06-09

ISSN :

2045-2322

English keyword(s) :

Sol-Gel
Bimuth
Silica glasses

HAL domain(s) :

Physique [physics]

English abstract : [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 ...
Show more >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.Show less >

Language :

Anglais

Popular science :

Non

ANR Project :

Bismuth-doped Optical fibres. Advanced Technology and Spectroscopy.

Collections :