Abstract

Transparent ceramics (TCs) represent a new family of functional hard materials. In this Letter, steady-state and time-resolved upconversion photoluminescence in ${{\rm Yb}^{3 +}} {\text -} {{\rm Er}^{3 +}}$ co-doped TC of yttrium aluminum garnet (TC-YAG) are reported for the first time, to the best of our knowledge. Under the excitation of near-infrared 940 nm laser at room temperature, the ${{\rm Yb}^{3 +}} {\text -} {{\rm Er}^{3 +}}$ co-doped TC-YAG emits intense multi-color luminescence consisting of cyan, green, and red groups of sharp lines. More excitingly, the green group of luminescence due to the transitions from $^4{{\rm S}_{3/2}}$ to $^4{{\rm I}_{15/2}}$ states of ${{\rm Er}^{3 +}}$ are the prominent components with the average lifetime of $\sim{0.3}\;{\rm ms}$. The internal quantum efficiency of the green luminescence is estimated to be 32.8%. A unique dual-resonance energy transfer from ${{\rm Yb}^{3 +}}$ to ${{\rm Er}^{3 +}}$ via the excited-state vibronic transitions is proposed as the principal mechanism of the strongest green luminescence of ${{\rm Er}^{3 +}}$ ions in TC-YAG.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Multi-wavelength pumped upconversion enhancement induced by Cu2-xS plasmonic nanoparticles in NaYF4@Cu2-xS core–shell structure

Donglei Zhou, Li Tao, Shaobo Cui, Jiannan Jiao, Junhua Hu, and Wen Xu
Opt. Lett. 46(1) 5-8 (2021)

Spectral characteristics and optical temperature sensing properties of Er3+/Yb3+-co-doped phosphate glasses with GeO2 modification

Bingtao Zhang, Yong Wang, Zigang Zhao, Wei Yan, Mingming Huo, and Guihuan Chen
Appl. Opt. 59(22) 6526-6533 (2020)

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 Optica member, or as an authorized user of your institution.

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

Supplementary Material (1)

NameDescription
Supplement 1       Supplementary document

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Equations (3)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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