Krupych O., Dyachok Ya., Smaga I., Vlokh R.
The regularities of laser-induced damage of anisotropic materials, such as LiNbO3 and KDP dielectric single crystals, are experimentally studied. It is revealed that the shape of laser-induced damage in the dielectric crystals depends on the elastic symmetry of crystal and the propagation direction of the laser beam. When the beam propagates along the optic axis of crystals, the figures of the laser damage are six-path stars for LiNbO3 and four-path ones for KDP crystals. For the direction parallel to X and Y axes in KDP crystal, the damage has initially cross-like configuration, with further splitting of Z-oriented crack into two cracks in the process of damage evolution, leading to transformation of orthogonal-type damage to a hexagonal-type one.
Key words: optical damage, anisotropy, single crystals, KDP, LiNbO3.
PACS: 42.70.Mp; 61.80.Ba; 62.20.Mk
doi 10.3116/16091833/6/2/50/2005
1. Swain GE, Stokowski SE, Milam D, Rainer F, 1982. Appl. Phys. Lett.
40: 350.
doi:10.1063/1.93095
http://dx.doi.org/10.1063/1.93095
2. Nakatani H, Bosenberg WR, Cheng LK, Tang CL, 1988. Appl. Phys. Lett.
53: 2587.
doi:10.1063/1.100535
http://dx.doi.org/10.1063/1.100535
3. Furukawa Y, Markgraf SA, Sato M, 1994. Appl. Phys. Lett. 65: 1480.
doi:10.1063/1.112018
http://dx.doi.org/10.1063/1.112018
4. Vlokh R, Dyachok Ya, Krupych O, Burak Ya, Martynyuk-Lototska I,
Andrushchak A, Adamiv V, 2003. Ukr. J. Phys. Opt. 2: 101.
doi:10.3116/16091833/4/2/101/2003
http://dx.doi.org/10.3116/16091833/4/2/101/2003
5. Koldunov MF, Manenkov AA, Pokotilo IL, 1998. Quant. Electronics
25: 833.
6. Koldunov MF, Manenkov AA, Pokotilo IL, 2002. Quant. Electronics
32: 623.
doi:10.1070/QE2002v032n07ABEH002258
http://dx.doi.org/10.1070/QE2002v032n07ABEH002258
7. Emel’yanov VI, Rogacheva AV, 2004. Quant. Electronics 34: 531.
doi:10.1070/QE2004v034n06ABEH002768
http://dx.doi.org/10.1070/QE2004v034n06ABEH002768
8. Salo VI, Atroshenko LV, Garnov SV, Khodeyeva NV, 1996. Proc. SPIE
2714: 197.
doi:10.1117/12.240416
http://dx.doi.org/10.1117/12.240416
9. Yoshimura M, Kamimura T, Murase K, Inoue T, Mori Y, Sasaki T, 1998.
Proc. SPIE 3244: 106.
doi:10.1117/12.306999
http://dx.doi.org/10.1117/12.306999
10. Yoshida H, Jitsuno T, Fujita H, Nakatsuka M, Yoshimura M, Sasaki
T, Yoshida K, 2000. Appl. Phys. B 70: 195.
doi:10.1007/s003400050032
http://dx.doi.org/10.1007/s003400050032
11. Bacon GE, Pease RC, 1953. Proc. Roy. Soc. A220: 397.
12. Shaskolskaya MP (Ed.), 1982. Acoustic Crystals, Handbook, Moscow,
Nauka: 632.