Elastic, Piezooptic and Acoustooptic Properties of Borate Crystals (BaB₂O₄, Li₂B₄O₇ and CsLiB₆O₁₀)

Acoustooptic interaction and photoelastic properties of Li2B4O7 and ?-BaB2O4 crystals at the wavelength of 442 nm

“…Dispersion of the refractive indices for Li 2 B 4 O 7 crystals in the visible spectral range had been earlier studied in our work [11]. Here we studied the refractive indices of α-BaB 2 O 4 in the visible range, using index-matching liquids.…”

Highly efficient acoustooptic diffraction in alpha-BaB2O4 crystals: improving of geometry of acoustooptic interaction

“…A wide range of their optical transparency, particularly in the ultraviolet (UV) spectral region [7][8][9][10][11] (up to 125 nm for 4 7 SrB O [10, 11]), and a high level of optical damage threshold [11,12] make them one of the best materials for operation of short-wavelength high-power laser radiation. As shown in the works [13][14][15][16][17][18][19][20], some of the borate crystals also manifest high enough acoustooptic figure of merit (abbreviated hereafter as AOFM). We have reported in our previous papers [14,18] that, for example, -BaB 2 O 4 (the point group of symmetry 3m) is characterised with very low transverse acoustic wave velocities and could therefore be used as a promising acoustooptic (AO) material.…”

“…As shown in the works [13][14][15][16][17][18][19][20], some of the borate crystals also manifest high enough acoustooptic figure of merit (abbreviated hereafter as AOFM). We have reported in our previous papers [14,18] that, for example, -BaB 2 O 4 (the point group of symmetry 3m) is characterised with very low transverse acoustic wave velocities and could therefore be used as a promising acoustooptic (AO) material. The AOFM for the -BaB 2 O 4 crystals [18] calculated on the basis of their photoelastic (PE) coefficients, refractive indices and the ultrasonic wave velocities is comparable with those typical for such well-known AO materials as lithium niobate or Pb 2 MoO 5 [21].…”

“…However, the paratellurite is not transparent in the deep UV spectral range and the range of its transparency is limited by the wavelength of 350 nm [21]. On the other hand, KDP and SiO 2 crystals are transparent down to 250 nm and 150 nm, respectively, though their AOFM is rather low, 15 [14].…”

Obliquity of the acoustic energy flow in acoustooptic alpha-BaB2O4 and Li2B4O7 crystals

“…In our previous works [7][8][9] it has been shown that the ABO and LTB crystals can also be used as materials for acoustooptic applications. For example, the acoustooptic figure of merit (AOFM) of the ABO and LTB, for the case of acoustic wave propagating along the principal crystallographic directions, reaches respectively the …”