Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Upconversion luminescence of Er and Cr in YSGG laser crystals

Not Accessible

Your library or personal account may give you access

Abstract

Upconversion and excited-state absorption (ESA) excitation of green luminescence were studied in Er-doped YSGG pumped at 780–825 nm. At high Er concentration (4 × 1021 cm−3), energy-transfer upconversion was the main pump channel for the green Er luminescence; at low Er concentration (2 × 1020 cm−3), ESA predominated at several spectral lines. Upconversion excitation of Cr broadband luminescence through the energy transfer from rare-earth (RE) ions was proposed in Cr,Re codoped crystals. Numerical estimations showed that upconversion efficiency of the proposed schemes can be high enough to reach reasonable excited-state concentrations for both Er and Cr diode-pumped conversion lasers.

© 1994 Optical Society of America

Full Article  |  PDF Article
More Like This
Two-step upconversion luminescence in Yb:Tb:YSGG crystal

M. A. Noginov, P. Venkateswarlu, and M. Mahdi
J. Opt. Soc. Am. B 13(4) 735-741 (1996)

Selective sensitization of 480-nm blue upconversion by Tm3+–Er3+ energy transfer in tellurite glass

S. Tanabe, K. Suzuki, N. Soga, and T. Hanada
J. Opt. Soc. Am. B 11(5) 933-942 (1994)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved