Ukrainian Journal of Physical Optics 

Home page

Other articles 

in this issue
Acoustooptic figure of merit for Sn2P2S6 crystals and the temperature dependences of acoustic wave velocities 

Download this article

Mys O., Martynyuk-Lototska I. and Vlokh R.

Abstract. We report on the studies for temperature dependences of both longitudinal and transverse acoustic wave velocities in Sn2P2S6 crystals. We show that the above temperature dependences, in particular those concerned with the slowest waves, should not impose notable temperature variation of their acoustooptic figure of merit.

Keywords: acoustooptic figure of merit, acoustic wave velocity, ferroelectric phase transition

PACS: 78.20.hb, 62.65.+k, 77.84.-s
UDC: 535.4, 534.22
Ukr. J. Phys. Opt. 12 166-170
doi: 10.3116/16091833/12/4/166/2011
Received:  25.09.2011

Анотація В роботі наведені результати дослідження температурних залежностей швидкостей поздовжніх і поперечних акустичних хвиль в кристалах Sn2P2S6. Показано, що температурна поведінка швидкостей акустичних хвиль, зокрема - найповільніших, не суттєво впливатиме на температурну поведінку коефіцієнта акустооптичної якості даних кристалів.

  1. Vysochanskii Yu M, Janssen T, Currat R, Folk R, Banys J, Grigas J and Samulionis V. Phase transitions in ferroelectric phosphorous chalcogenide crystals: Vilnius University Publishing House (2006). 
  2. Odoulov S G, Shumelyuk A N, Hellwig U, Rupp R, Grabar A A and Stoyka I M, 1996. Photorefraction in tin hypothiodiphosphate in the near infrared. J. Opt. Soc. Amer. B. 13: 2352–2360. doi:10.1364/JOSAB.13.002352
  3. Jazbinsek M, Montemezzani G, Gunter P, Grabar A A, Stoika I M and Vysochanskii Y M, 2003. Fast near-infrared self-pumped phase conjugation with photorefractive Sn2P2S6. J. Opt. Soc. Amer. B. 20: 1241–1246. doi:10.1364/JOSAB.20.001241
  4. Vlokh R O, Vysochanskii Yu M, Grabar A A, Kityk A V and Slivka V Yu, 1991. Electrooptic effect in Sn2P2S6 ferroelectrics. Izv. Akad. Nauk USSR, Ser. Neorg. Ma-ter. 27: 689–692. 
  5. Haertle D, Caimi G, Haldi A, Montemezzani G, Günter P, Grabar A A, Stoika I M and Vysochanskii Yu M, 2003. Electrooptical properties of Sn2P2S6. Opt. Commun. 215: 333–343. doi:10.1016/S0030-4018(02)02251-4
  6. Mys O, Martynyuk-Lototska I, Grabar A, Vysochanskii Yu and Vlokh R, 2006. Pie-zooptic coefficients and acoustic wave velocities in Sn2P2S6 crystals. Ukr. J. Phys. Opt. 7: 124–128. doi:10.3116/16091833/7/3/124/2006
  7. Mys O G, Martynyuk-Lototska I Yu, Grabar A A, Vysochanskii Yu M and Vlokh R O, 2007. Piezooptic coefficients of Sn2P2S6 crystals. Ferroelectrics. 352: 171–175. doi:10.1080/00150190701358290
  8. Martynyuk-Lototska I Yu, Mys O G, Grabar A A, Stoika I M, Vysochanskii Yu M and Vlokh R O, 2008. Highly efficient acousto-optic diffraction in Sn2P2S6 crystals. Appl. Opt. 47: 52–55. doi:10.1364/AO.47.000052
  9. Gottlieb M, Isaacs T J, Feichtner J D and Roland G W, 1974. Acousto-optic properties of some chalcogenide crystals. J. Appl. Phys. 45: 5145–5151. doi:10.1063/1.1663207
  10. Mys O, Martynyuk-Lototska I, Grabar A and Vlokh R, 2009. Acoustic and elastic properties of Sn2P2S6 crystals. J. Phys.: Condens. Matter. 21: 265401–265407.doi:10.1088/0953-8984/21/26/265401
  11. Samulionis V, 2002. Acoustic and piezoelectric properties of new polar semiconduc-tor compounds of Sn2P2S6 family. Ultragarsas. 4(45): 7–12. 
  12. Carpentier C D and Nitsche R, 1974. Vapour growth and crystal data of the thio(seleno) hypodiphosphates Sn2P2S6, Sn2P2Se6, Pb2P2S6, Pb2P2Se6 and their mixed crystals. Mater. Res. Bull. 9: 401–410. doi:10.1016/0025-5408(74)90207-4
  13. Martynyuk-Lototska I, Mys O, Zapeka B and Vlokh R, 2011. About the existence of a Lifshitz point on the phase diagram of Sn2P2(SexS1–x)6 solid solutions: acoustic and optical studies. Phil. Mag. 91: 3519–3546. doi:10.1080/14786435.2011.581705
  14. Martynyuk-Lototska I, Say A, Mys O and Vlokh R, 2011. On the tricritical point on the (p, T)-phase diagram of Sn2P2S6 crystals. Phil. Mag. doi:10.1080/14786435.2011.613413
(c) Ukrainian Journal of Physical Optics