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Near vacuum ultraviolet luminescence of Gd3+ and Er3+ ions generated by super saturation upconversion processes

Chen, Guanying; Liang, Huijuan; Liu, Haichun; Somesfalean, Gabriel LU and Zhang, Zhiguo (2009) In Optics Express 17(19). p.16366-16371
Abstract
Near vacuum ultraviolet (UV) upconversion (UC) emissions with a spectral resolution of 1 nm, from the (6)G(J), D-6(J), I-6(J), P-6(J) levels of Gd3+ and the L-2(17/2), D-4(7/2), H-2(2)(9/2), D-2(5/2), (4)G(7/2), K-2(13/2), P-2(3/2) levels of Er3+, were observed under 974 nm laser excitation. Mechanism analyses illustrate that successive energy transfers (ETs) from Yb3+ to Er3+ generate UV UC radiations in Er3+, while two resonant ETs from Er3+ to Gd3+ lead to UV UC radiations in Gd3+. Power dependence analyses indicate that the expected inefficient four- and five-photon processes have been switched into efficient two-photon processes due to a super saturation UC phenomenon that employs consecutive saturations at the intermediate states.... (More)
Near vacuum ultraviolet (UV) upconversion (UC) emissions with a spectral resolution of 1 nm, from the (6)G(J), D-6(J), I-6(J), P-6(J) levels of Gd3+ and the L-2(17/2), D-4(7/2), H-2(2)(9/2), D-2(5/2), (4)G(7/2), K-2(13/2), P-2(3/2) levels of Er3+, were observed under 974 nm laser excitation. Mechanism analyses illustrate that successive energy transfers (ETs) from Yb3+ to Er3+ generate UV UC radiations in Er3+, while two resonant ETs from Er3+ to Gd3+ lead to UV UC radiations in Gd3+. Power dependence analyses indicate that the expected inefficient four- and five-photon processes have been switched into efficient two-photon processes due to a super saturation UC phenomenon that employs consecutive saturations at the intermediate states. (C) 2009 Optical Society of America (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
17
issue
19
pages
16366 - 16371
publisher
OSA
external identifiers
  • wos:000269736100001
  • scopus:70349196460
ISSN
1094-4087
DOI
10.1364/OE.17.016366
language
English
LU publication?
yes
id
6aca3092-6384-44f0-8859-59ed76de7b77 (old id 1492230)
date added to LUP
2009-10-16 16:50:25
date last changed
2017-10-22 04:04:47
@article{6aca3092-6384-44f0-8859-59ed76de7b77,
  abstract     = {Near vacuum ultraviolet (UV) upconversion (UC) emissions with a spectral resolution of 1 nm, from the (6)G(J), D-6(J), I-6(J), P-6(J) levels of Gd3+ and the L-2(17/2), D-4(7/2), H-2(2)(9/2), D-2(5/2), (4)G(7/2), K-2(13/2), P-2(3/2) levels of Er3+, were observed under 974 nm laser excitation. Mechanism analyses illustrate that successive energy transfers (ETs) from Yb3+ to Er3+ generate UV UC radiations in Er3+, while two resonant ETs from Er3+ to Gd3+ lead to UV UC radiations in Gd3+. Power dependence analyses indicate that the expected inefficient four- and five-photon processes have been switched into efficient two-photon processes due to a super saturation UC phenomenon that employs consecutive saturations at the intermediate states. (C) 2009 Optical Society of America},
  author       = {Chen, Guanying and Liang, Huijuan and Liu, Haichun and Somesfalean, Gabriel and Zhang, Zhiguo},
  issn         = {1094-4087},
  language     = {eng},
  number       = {19},
  pages        = {16366--16371},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Near vacuum ultraviolet luminescence of Gd3+ and Er3+ ions generated by super saturation upconversion processes},
  url          = {http://dx.doi.org/10.1364/OE.17.016366},
  volume       = {17},
  year         = {2009},
}