Growth and spectral properties of NaNd(MoO₄)₂ crystal

Abstract

This paper reports on the growth and spectral properties of NaNd(MoO 4 ) 2 crystal. NaNd(MoO 4 ) 2 crystal with dimensions of 23615615 mm was grown from a flux of Na 2 Mo 2 O 7 by top seed solution growth method. The absorption and emission spectra of NaNd(MoO 4 ) 2 crystal were investigated. The results show that NaNd(MoO 4 ) 2 crystal has large absorption cross-section of 3?74610 -20 cm 2 with broad full width at half maximum of 15 nm at 806 nm for p-polarisation and 2?49610 -20 cm 2 with full width at half maximum of 16 nm at 807 nm for s-polarisation respectively. The emission cross-sections are 6?0610 -19 cm 2 at 1058 nm for p-polarisation and 3?93610 -19 cm 2 at 1065 nm for s-polarisation respectively. The above results indicated that NaNd(MoO 4 ) 2 crystal may be regarded as potential self-active laser materials.

Average Structure, Local Structure, Photoluminescence, and NLO Properties of Scheelite Type NaCe(WO4)2

“…Similarly, Swetha et al investigated the effect of K + ion substitution in NaNd­(WO 4 ) 2 and studied the importance of local disorder for improved photoluminescence . Although there are many reports on Na RE (WO 4 ) 2 (RE = Rare earths), most of the synthesis techniques are dedicated to achieve single crystals by a top seeded solution or Czochralski method and microcrystalline powders by conventional solid state method . Recently, due to the ease of preparation, simplicity in use, lower temperatures and time, wet chemical methods are widely explored. ,, However, to the best of our knowledge only two reports are available on cerium-based sodium double tungstate.…”

Flux Exploration, Growth, and Optical Spectroscopic Properties of Large Size LaBSiO5 and Eu3+-Substituted LaBSiO5 Crystals

“…In a typical procedure of J–O analysis, the optical absorption data of the crystal is crucial since it could be used to calculate the radiative transition probabilities between the ground state and the excited multiplicities, the luminescence branching ratios, and the radiative lifetime of the excited state. Intensity parameters Ω λ (λ = 2, 4, 6), which are also called as J–O parameters, could be extracted during the analysis, and the value of these parameters could be used to investigate how the crystal field circumstance influences the electronic transition of active ions. − However, the lack of enough numbers of observable absorption transitions makes it difficult to calculate according to the standard procedure. In this article, a modified method developed by Tian and Chen et al was adopt to perform the J–O calculation. , …”