Abstract
The synthesis of large single crystals with good optical quality which is a preliminary condition for the practical applications of these materials frequently is complicated. It is found that large LuVO4 single crystals with high optical quality are possible to be prepared using high temperature solution growth method. It is obtained by X-ray crystallographic analysis that the grown crystals possess centrosymmetric tetragonal structure with the point group symmetry D4h and space group I41/amd (zircon-type structure). The unit cell parameters of a = 7.0236 Å, b = 7.0236 Å, c = 6.2293 Å, volume = 307.30(3) Å3 are measured. The crystals composition as well as vanadium oxidation state were measured in order to confirm that the crystal phase is mainly LuVO4. Optical transmission and Raman Spectroscopy are further performed on LuVO4 single crystal to reveal the optical quality and structure details
Highlights
Rare-earth orthovanadates (RVO4, where R = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) compounds demonstrate diverse applications in various fields
Raman selection rules are clearly discernible despite the considerable depolarisation effects caused by the extremely strong birefringence of the LuVO4 crystal. These effects leading to partial mixing of allowed and forbidden intensity between different Raman modes [Porto] can be minimized by using focusing/collecting optics with small numerical aperture (N.A.) and keeping short the beam path within the simple
The spectra contain features from impurities or second-phase inclusions that do not obey the Raman selection rules and obviously do not pertain to the vibrational spectrum of LuVO4 crystal. Their frequencies lie in most cases far from LuVO4 signal and with one exception they posed no obstacle to the assignment of the LuVO4 modes
Summary
Slow cooling from solution [2], the Czochralski process [3], top-seeded solution growth [4], the laser-heated pedestal growth method [5], the floating-zone (FZ) method [6] and the micro-FZ method [7] have been already reported All those methods offer single crystals with excellent quality, with relatively small sizes. Among RVO4 single crystals, LuVO4 is one with a particular interest as a laser host material due to the larger absorption cross section near 800 nm and larger emission cross section at 1.064 ȝm in comparison with other vanadate crystals [8]. This paper reports the crystal growth process of large, high quality LuVO4 crystals and study of their structural and optical properties
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
