Anisotropy of acoustooptic figure of merit in KH2PO4 crystals

Mys, O.; Krupych, O.; Vlokh, R.

doi:10.3116/16091833/18/2/83/2017

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…As a result, their AO properties have attracted much attention associated with ultraviolet tunable AO filters [9][10][11][12]. As shown by the present authors, the maximal AOFM value for the KDP crystals is equal to 7.1×10 -15 s 3 /kg [13]. According to the literature data, the AOFM for the ADP crystals amounts to 6.43×10 -15 s 3 /kg [1].…”

Section: Introductionmentioning

confidence: 55%

“…2 and Ref. [13] for the case of KDP). A schematic view of parts of the AW velocity surfaces, which are common for the both crystals, is presented in Fig.…”

Section: Methods Of Analysis 21 Acoustic and Optical Properties Of Kdp And Adp Crystalsmentioning

confidence: 99%

“…In our previous works, we have developed an analytical method for the studies of AOFM anisotropy [8,[13][14][15][16][17][18][19]. Among the crystals of which AOFMs have been analyzed there are such tetragonal crystals as KDP, TeO 2 , Li 2 B 4 O 7 and NaBi(MoO 4 ) 2 .…”

Section: Introductionmentioning

confidence: 99%

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Anisotropy of acousto-optic figure of merit in tetragonal crystals with accounting for non-orthogonality of acoustic eigenwave polarizations. 1. The cases of KH2PO4 and NH4H2PO4 crystals

Mys¹,

Savaryn²,

Kostyrko³

et al. 2018

Ukr. J. Phys. Opt.

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In the present work we derive analytical relations for the effective elastooptic coefficients with accounting for the non-orthogonality of polarizations of the acoustic waves (AWs) in the crystals that belong to the symmetry groups 42m , 4/mmm, 422 and 4mm. We analyze anisotropies of acousto-optic (AO) figure of merit (AOFM) for KH 2 PO 4 and NH 4 H 2 PO 4 crystals within their crystallographic planes, which are derived under conditions when the AW non-orthogonality effect is neglected by or accounted for. We find that consideration of the angle of AW nonorthogonality changes significantly the AOFM values. AO diffraction geometries corresponding to maximums of AOFM are obtained for all of the nine types of AO interactions, including those concerned with the collinear diffraction. We demonstrate that the principal AOFM maximum for NH 4 H 2 PO 4 is equal to 10.0×10 -15 s 3 /kg. It can be achieved at the type II of AO interactions with the quasilongitudinal AW in the crystallographic plane ab. The highest AOFM value peculiar for the anisotropic AO diffraction in NH 4 H 2 PO 4 , 9.5×10 -15 s 3 /kg, can be reached at the type IX of AO interactions with a so-called AW QT 2 in the ac plane. Finally, the highest AOFM found for the case of collinear diffraction, 4.4×10 -15 s 3 /kg, is also inherent to the NH 4 H 2 PO 4 crystals. KH 2 PO 4 is characterized by somewhat lower AOFM values.

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Section: Introductionmentioning

confidence: 55%

“…2 and Ref. [13] for the case of KDP). A schematic view of parts of the AW velocity surfaces, which are common for the both crystals, is presented in Fig.…”

Section: Methods Of Analysis 21 Acoustic and Optical Properties Of Kdp And Adp Crystalsmentioning

confidence: 99%

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Anisotropy of acousto-optic figure of merit in tetragonal crystals with accounting for non-orthogonality of acoustic eigenwave polarizations. 1. The cases of KH2PO4 and NH4H2PO4 crystals

Mys¹,

Savaryn²,

Kostyrko³

et al. 2018

Ukr. J. Phys. Opt.

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“…However, the positive characteristics of these crystals-namely high mechanical strength, high optical quality and resistance to aggressive environments-as well as the existence of effective technologies for the growth of large single crystals make these crystals the most important objects in applications related to photo-elastic or acousto-optic devices for the purpose of optical beam control. Maximal elasto-optic or acousto-optic efficiencies of these crystals can be determined from the analysis of surfaces that are indicative of the above-mentioned effect to varying degrees, see, e.g., papers [40][41][42][43][44][45] and others.…”

Section: Elasto-optic Coefficients Of Litao 3 Crystalsmentioning

confidence: 99%

Photoelastic Properties of Trigonal Crystals

et al. 2021

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All possible experimental geometries of the piezo-optic effect in crystals of trigonal symmetry are studied in detail through the interferometric technique, and the corresponding expressions for the calculation of piezo-optic coefficients (POCs) πim and some sums of πim based on experimental data obtained from the samples of direct and Х/45°-cuts are given. The reliability of the values of POCs is proven by the convergence of πim obtained from different experimental geometries as well as by the convergence of some sums of POCs. Because both the signs and the absolute values of POCs π14 and π41 are defined by the choice of the right crystal-physics coordinate system, we here use the system whereby the condition S14 > 0 is fulfilled (S14 is an elastic compliance coefficient). The absolute value and the sign of S14 are determined by piezo-optic interferometric method from two experimental geometries. The errors of POCs are calculated as mean square values of the errors of the half-wave stresses and the elastic term. All components of the matrix of elasto-optic coefficients pin are calculated based on POCs and elastic stiffness coefficients. The technique is tested on LiTaO3 crystal. The obtained results are compared with the corresponding data for trigonal LiNbO3 and Ca3TaGa3Si2O14 crystals.

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