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

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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; Zhang, Zhiguo.

I: Optics Express, Vol. 17, Nr. 19, 2009, s. 16366-16371.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Chen, Guanying ; Liang, Huijuan ; Liu, Haichun ; Somesfalean, Gabriel ; Zhang, Zhiguo. / Near vacuum ultraviolet luminescence of Gd3+ and Er3+ ions generated by super saturation upconversion processes. I: Optics Express. 2009 ; Vol. 17, Nr. 19. s. 16366-16371.

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TY - JOUR

T1 - Near vacuum ultraviolet luminescence of Gd3+ and Er3+ ions generated by super saturation upconversion processes

AU - Chen, Guanying

AU - Liang, Huijuan

AU - Liu, Haichun

AU - Somesfalean, Gabriel

AU - Zhang, Zhiguo

PY - 2009

Y1 - 2009

N2 - 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

AB - 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

U2 - 10.1364/OE.17.016366

DO - 10.1364/OE.17.016366

M3 - Article

VL - 17

SP - 16366

EP - 16371

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 19

ER -