Abstract

The abnormal “roller coaster”-like thermal evolution of the Er3+ ion’s red photoluminescence (corresponding to the F9/24I415/2 transition) in CaWO4:Yb3+/Er3+ phosphors is observed. This red emission suffers from a strong thermal quenching in the 293–573 K temperature range, followed by a sharp increase on further increasing the temperature. The mechanism behind this phenomenon is confirmed to be from the dynamic temperature-dependent multiple mechanisms imposed on the F9/24 state. At relatively low temperatures, the two-photon upconversion mechanism plays a leading role while, with the increasing of temperature, the one-photon channel, ascribed to the thermal population from the lower I9/24 state, gradually takes a dominant place.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Excellent optical thermometry based on short-wavelength upconversion emissions in Er3+/Yb3+ codoped CaWO4

Wei Xu, Zhiguo Zhang, and Wenwu Cao
Opt. Lett. 37(23) 4865-4867 (2012)

Optical thermometry based on the red upconversion fluorescence of Er3+ in CaWO4:Yb3+/Er3+ polycrystalline powder

Leipeng Li, Longjiang Zheng, Wei Xu, Zhang Liang, Yuan Zhou, Zhiguo Zhang, and Wenwu Cao
Opt. Lett. 41(7) 1458-1461 (2016)

Upconversion luminescence of Ba3La(PO4)3:Yb3+-Er3+/Tm3+ phosphors for optimal temperature sensing

Jiafeng Cao, Jia Zhang, and Xiaowei Li
Appl. Opt. 57(6) 1345-1350 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription