Luminescence properties of YPO4:Nd3+: a promising VUV scintillator material

a b s t r a c tBaMgF 4 single crystals doped with Nd 3 þ are of great interest as possible active media for VUV-UV and mid-IR all solid-state lasers. The luminescence spectroscopy and the excited state dynamics of these crystals are investigated for the first time upon VUV excitation using synchrotron radiation. The material shows fast Nd 3 þ 5d-4f emission upon direct VUV excitation into Nd 3 þ 5d levels. The decay kinetics of the Nd 3 þ 5d-4f emission in this host lattice upon direct VUV excitation of 5d levels is characterized by a lifetime of about 14 ns with no significant rise after the excitation pulse. No significant temperature dependence of the lifetime is observed within the range 8-300 K.

Section: Resultssupporting

confidence: 56%

VUV–UV 5d–4f interconfigurational transitions of Nd3+ in BaMgF4 ferroelectric crystals

Trevisani

Ivanovskikh

Ramı́rez

et al. 2014

“…The vacuum ultraviolet emission and excitation spectra of Nd 3+ diluted into wide band gap hosts have recently attracted attention for applications such as laser crystals [1], scintillators [2,3], upconverters [4,5], as well as for theoretical investigations [6,7]. The typical 4f 2 5d 1 -4f 3 luminescence of Nd 3+ in various oxide and fluoride hosts is fast (with a decay time of the order 10 ns described by a single exponential) and shows usually a broad-band emission with the shortest wavelength and strongest band centered around 190 nm.…”

Section: Introductionmentioning

confidence: 99%

Luminescence and excitation spectra of YAG:Nd3+ excited by synchrotron radiation

Ning

Tanner

Harutunyan

et al. 2007

“…At the same time, we were unable to find any published reports on exciton emission in KLuP. Nevertheless, by analogy with energy of self-trapped exciton emission in other phosphates ( $ 23800 cm À 1 in YPO 4 [16], $ 22600 cm À 1 in LiY (PO 4 ) 3 [17]) we suppose that in case of KLuP it is very probably located at energy much smaller than that required for 4f-5d absorption of Pr 3 þ in this material (443000 cm À 1 ).…”

Section: Luminescence Spectroscopy and Dynamicsmentioning

confidence: 75%

Fast 5d-4f luminescence in Pr3+-doped K3Lu (PO4)2

Trevisani

Ivanovskikh

Piccinelli

et al. 2014

Keywords:Pr 3 þ ion 5d-4f luminescence K 3 Lu (PO 4 ) 2 VUV spectroscopy Synchrotron radiation a b s t r a c tThe double phosphate K 3 Lu (PO 4 ) 2 doped with Pr 3 þ ions was prepared by solid-state reaction. The material obtained was characterized by X-ray powder diffraction (XRPD). The luminescence spectroscopy and the excited state dynamics of this material were studied for the first time upon excitation with UV-VUV synchrotron radiation (SR). The material has shown efficient and fast Pr 3 þ 5d-4f emission upon both intra-center and band-gap excitation. A strong dependence of the luminescence spectra as well as the decay kinetics on the temperature was observed due to crystallographic structural phase changes of the K 3 Lu (PO 4 ) 2 host.