The University of Southampton
University of Southampton Institutional Repository

Energy transfer upconversion in Nd:YAG at cryogenic-temperatures

Energy transfer upconversion in Nd:YAG at cryogenic-temperatures
Energy transfer upconversion in Nd:YAG at cryogenic-temperatures
The precise characterisation of the ground state absorption cross section around 800nm of Nd:YAG from Room Temperature to Liquid Nitrogen Temperature is presented. These results enabled the measurement of the Energy Transfer Upconversion macroparameter over the same temperature range for 0.3at.% - and 0.6at.%-doped samples via a simple and automated z-scan technique. The main absorption cross section peak at 808nm is found to increase from (6.90±0.30)pm2 at the highest to (42.30±2.10) pm2 at the lowest temperatures, respectively. Over the same range, the ETU parameter increases from (21.5±2.3)10−18cm3/s to (52.6±2.5)10−18cm3/s and from (36.0±2.8)10−18cm3 to (65.7±1.9)10−18cm/s, for 0.3at.% and 0.6at.%, respectively. Although a limiting factor in the RT operation at 946nm of Nd:YAG, we calculate that despite the twofold increase in the ETU parameter, with the crystal cooled to LNT its effect on laser threshold is negligible.
2159-3930
2019-2029
Cante, Silvia
153acbb4-d6d1-4f3e-ada7-1be8b5b94c8f
Mackenzie, Jacob
1d82c826-fdbf-425b-ac04-be43ccf12008
Cante, Silvia
153acbb4-d6d1-4f3e-ada7-1be8b5b94c8f
Mackenzie, Jacob
1d82c826-fdbf-425b-ac04-be43ccf12008

Cante, Silvia and Mackenzie, Jacob (2020) Energy transfer upconversion in Nd:YAG at cryogenic-temperatures. Optical Materials Express, 10 (9), 2019-2029. (doi:10.1364/OME.397034).

Record type: Article

Abstract

The precise characterisation of the ground state absorption cross section around 800nm of Nd:YAG from Room Temperature to Liquid Nitrogen Temperature is presented. These results enabled the measurement of the Energy Transfer Upconversion macroparameter over the same temperature range for 0.3at.% - and 0.6at.%-doped samples via a simple and automated z-scan technique. The main absorption cross section peak at 808nm is found to increase from (6.90±0.30)pm2 at the highest to (42.30±2.10) pm2 at the lowest temperatures, respectively. Over the same range, the ETU parameter increases from (21.5±2.3)10−18cm3/s to (52.6±2.5)10−18cm3/s and from (36.0±2.8)10−18cm3 to (65.7±1.9)10−18cm/s, for 0.3at.% and 0.6at.%, respectively. Although a limiting factor in the RT operation at 946nm of Nd:YAG, we calculate that despite the twofold increase in the ETU parameter, with the crystal cooled to LNT its effect on laser threshold is negligible.

Full text not available from this repository.

More information

In preparation date: 31 March 2020
Submitted date: 30 June 2020
Published date: 3 August 2020

Identifiers

Local EPrints ID: 441899
URI: http://eprints.soton.ac.uk/id/eprint/441899
ISSN: 2159-3930
PURE UUID: 78c2fe43-0880-484d-921c-995780575fb9
ORCID for Silvia Cante: ORCID iD orcid.org/0000-0002-5981-0855
ORCID for Jacob Mackenzie: ORCID iD orcid.org/0000-0002-3355-6051

Catalogue record

Date deposited: 01 Jul 2020 16:35
Last modified: 10 Mar 2021 02:49

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×