Laser heated pedestal growth and spectroscopic properties of neodymium doped Ba2NaNb5O15 single crystal fibers

Flux growth, structural studies and spectroscopy of K2NdNb5O15 and Nd:K2LaNb5O15 crystals

“…The crystals were grown from K 2 temperature was lowered to 800 • C at a rate of 1.2 • C/h, and then to room temperature at a rate of 30-40 • C/h. The obtained crystals were in form of elongated prisms up to 2 mm × 1 mm × 1 mm in size.…”

“…Ba 2 NaNb 5 O 15 (BNN) for example, is a frequency doubler crystal that can be activated with rare earth ions to yield attractive solid state laser materials [1,2]. We have developed a flux growth method for the synthesis of rare earth-doped TTB niobates in form of single crystals suitable for structural and spectroscopic studies which have provided new information about these materials and their perspectives of application [3,4].…”

Luminescence properties of Ba2NaNb5O15 crystals activated with Sm3+, Eu3+, Tb3+ or Dy3+ ions

“…It is also an interesting host material for luminescent ions. Nd 3 + -doped BNN has been investigated in order to develop an efficient self doubling laser crystal [2,3]. Studies extended to BNN activated with Yb 3 + [4], Er 3 + [5], Tm 3 + and Ho 3 + [6,7] have confirmed its potentialities as host lattice for laser ions.…”

Growth and Characterization of Centimeter‐Sized Ba2LaFeNb4O15 Crystals from High‐Temperature Solution under a Controlled Atmosphere

“…[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] Microtwins, related to the orthorhombic structure of BNN, and cracks caused by thermal expansion along the c axis in the ferroelectric phase transition [14,24] are observed in such crystals. Crystalline fibers grown by the laser-heated pedestal growth (LHPG) [25][26][27][28][29] and the micro-pulling-down technique (μ-PD) [30][31][32][33] do not suffer such formation of cracks and twins. These growth techniques can produce high quality BNN crystals of limited size (below 1 mm diameter).…”