Crystal growth, nonlinear frequency-doubling and spectral characteristic of Nd:Ca9La(VO4)7 crystal

Ultraviolet to near-infrared conversion in Nd3+ doped strontium cerate nanophosphors

“…The powder XRD patterns of Sr 2Àx CeO 4+x/2 :xNd 3+ nanophosphors. respectively [1][2][3][4][17][18][19]. It is worth noting that the intense and broad NIR emission of Sr 2 CeO 4 :Nd 3+ nanophosphors matches with the transmittance of the human body at 600-1100 nm (so-called ''human window'') [20], therefore, Sr 2 CeO 4 :Nd 3+ nanophosphors could potentially be applied in the biomedical field.…”

“…4 F 7/2 + 4 S 3/2 and 4 I 9/2 ? 4 F 5/2 + 2 H 9/2 transitions of Nd 3+ ions, respectively [1][2][3][4][17][18][19]. The PL spectra of the sample under 272 nm excitation are plotted in Fig.…”

Three in one: a cadmium bismuth vanadate NLO crystal exhibiting a large second-harmonic generation response and enhanced birefringence

“…[1][2][3][4] Structurally, vanadate exhibits a variety of coordination geometries, including [VO 4 ] tetrahedra, [VO 5 ] pyramids, and [VO 6 ] octahedra, capable of forming frameworks spanning zerodimensional (0D) to three-dimensional (3D) ones. [5][6][7] It is worth noting that the combined characteristics and spatial arrangement of these structural primitives influence certain intrinsic properties associated with the structure, particularly as exemplified in the realm of NLO crystals. [8][9][10][11] Moreover, the d 0 transition metal V 5+ is susceptible to second-order Jahn-Teller (SOJT) effect distortion, which contributes significantly to second order polarizability and optical anisotropy.…”

Sr9In(VO4)7as a model ferroelectric in the structural family of β-Ca3(PO4)2-type phosphates and vanadates

“…Phosphates and vanadates with the b-Ca 3 (PO 4 ) 2 -type (b-TCPtype) structure 1 are of great interest now mainly due to their potential use as efficient phosphors in light-emitting diode (LED) devices. [2][3][4][5][6] They also have other interesting properties, such as being ferroelectric, [7][8][9] antiferroelectric, 10,11 nonlinear optical, [12][13][14] and catalytic, 15,16 and have properties related to bioapplications due to their biocompatibility. 17,18 They were suggested to be host materials for Tm 3+ and Yb 3+ luminescent ions in lasers including those with self-doubling frequency.…”