Anisotropy of piezo- and elastooptical effect in β-BaB₂O₄crystals

Piezooptic coefficients and acoustooptic efficiency of TGS crystals

“…At the same time, the data of Table 1 testifies that the coefficients π 13 , π 22 and π 33 are relatively large. These POCs are higher than those measured for such well-known AO materials as GaP (the maximal POC being equal to 1.44 Br [15]), LiNbO 3 ( 2.1 Br [14,19]), β-BaB 2 O 4 (3.7 Br [20]) and crystalline quartz (3.11 Br [21]). Now we consider the piezooptic efficiency of TGS, which determines practical possibilities for its applications for photoelastic light modulation cells and photoelastic pressure sensors [14,15].…”

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].…”

“…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]. Of course, the AOFM of such materials as, e.g., TeO 2 crystals, is much higher than that of the borates.…”

Kerr and Faraday effects in borate glasses

“…They are widely used in parametric optical oscillators as functional elements [13,14]. Recently we have shown that the borate crystals may also be used as acoustooptic materials, in particular for acoustooptic operation of laser radiation in the short-wavelength spectral range [15][16][17][18][19][20][21][22][23]. We should also notice that the acoustooptic interactions do not require a lack of centre of symmetry, being possible even in the isotropic glasses.…”