Effect on scattering of complex morphology of DKDP bulk damage sites

被引：5

作者：

Carr, CW ^{[1
]}

Feit, MD ^{[1
]}

Muyco, JJ ^{[1
]}

Rubenchik, AM ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

Laser-Induced Damage In Optical Materials: 2004 | 2005年 / 5647卷

关键词：

laser induced damage; scattering; KDP; DKDP; densification;

D O I：

10.1117/12.585927

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bulk damage sites in frequency conversion crystals scatter and/or absorb laser light leading to interference and downstream intensification We find that laser induced bulk damage sites in DKDP exhibit a "shell" of structurally and/or chemically modified material surrounding a central core as indicated by SEM and optical micrographs and micro Raman spectral maps. We hypothesize that the modified material has been shock wave densified and estimate the amount of densification and its effect on scattering. A simple model indicates that densification of several percent is likely and that the scattering cross section may be larger than the geometric area of the inner core by an order of magnitude.

引用

页码：532 / 539

页数：8

共 7 条

[1]

Carr C. W., 2003, Proceedings of the SPIE - The International Society for Optical Engineering, V4932, P429, DOI 10.1117/12.472409

[2] Microscopic characterization of laser-induced damage performance of large-size KDP and DKDP nonlinear crystals [J].

DeMange, P ;

Carr, CW ;

Radousky, HB ;

Demos, SG .

NONLINEAR FREQUENCY GENERATION AND CONVERSION: MATERIALS DEVICES, AND APPLICATIONS III, 2004, 5337 :47-53

[3] PRESSURE-INDUCED TRANSITION OF THE HYDROGEN-BOND IN THE FERROELECTRIC COMPOUNDS KH2PO4 AND KD2PO4 [J].

ENDO, S ;

CHINO, T ;

TSUBOI, S ;

KOTO, K .

NATURE, 1989, 340 (6233) :452-455

[4] Characterization of proton exchange layer profiles in KD2PO4 crystals by micro-Raman spectroscopy [J].

Huser, T ;

Hollars, CW ;

Siekhaus, WJ ;

De Yoreo, JJ ;

Suratwala, TI ;

Land, TA .

APPLIED SPECTROSCOPY, 2004, 58 (03) :349-351

[5] The results of pulse-scaling experiments on rapid-growth DKDP triplers using the Optical Sciences Laser at 351 nm [J].

Runkel, M ;

Burnham, AK ;

Milam, D ;

Sell, W ;

Feit, M ;

Rubenchik, A .

LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 2000, PROCEEDINGS, 2001, 4347 :359-372

[6]

Van de Hulst H. C., 2012, LIGHT SCATTERING SMA

[7]

Yakshin MA, 1997, LASER PHYS, V7, P941

← 1 →