Dopants in photorefractive bismuth tellurite Bi2TeO5 crystals

Analysis of yttrium aluminium borate crystals by solution-based methods: inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry

“…Matrix matching and standard addition methods were used for calibration. (3) Quatitation of some dopants (i.e., Cr, Fe, Ni, Cu, Mo, V, Er and Nd) in bismuth tellurite optical crystals by graphite furnace atomic absorption spectrometry (GFAAS) [14][15][16][17][18][19] and ICP-AES with pneumatic nebulization [16][17][18][19] and electrothermal vaporization (ETV) sample introduction methods [16]. Study on spectral and nonspectral interferences.…”

Growth of bismuth tellurite crystals by vertical Bridgman method

“…a ¼ 1:1576ð2Þ nm, b ¼ 1:6422ð2Þ nm, c ¼ 0:5510ð1Þ nm, V ¼ 1:04752ð23Þ nm 3 . The results about the crystal structure will be reported in detail elsewhere.…”

“…Bismuth tellurite (Bi 2 TeO 5 , BTO) crystal is a novel material with interesting physical properties such as nonlinear optical and photorefractive properties [1][2][3]. The most attractive property is that the crystal can exhibit a long-living photorefractive signal, which develops in the four wave mixing process without fixing.…”

Optical absorption and luminescence of Ho3+ ions in Bi2TeO5 single crystal

“…The Bi 3+ and Te 4+ lattice sites provide suitable environments for hosting several types of dopants [3,4]. The crystal structure of Bi 2 TeO 5 is orthorhombic (Abm2) and can be interpreted as a 2 · 3 · 1 superstructure of the CaF 2 structure with 1/ 6 empty oxygen positions [5].…”

“…Laser active dopants, as the trivalent rare earth ions, can be introduced into the Bi 2 TeO 5 lattice with crystal/melt segregation coefficients close to unity [3,4]. They occupy different Bi(1), Bi (2), and Bi(3) lattice sites surrounded by 8, 7, and 7 oxygens, respectively (see terminology and structural details in Ref.…”