Detection and characterization of absorption heterogeneities in KH2PO4 crystals

Pommiès, Matthieu; Damiani, David; Bertussi, Bertrand; Capoulade, Jérémie; Piombini, Hervé; Natoli, Jean-Yves; Mathis, Hervé

doi:10.1016/j.optcom.2006.06.043

Cited by 35 publications

(19 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is also apparent that the Type 2 defect absorber have more variance than the Type 1 precursor (also keeping in trend with the sample population), with LG data having less variation than FG data. It is also interesting to see clearly the Type 2 defect precursor ( 2 ) decreases as the boule transitions from FG to MG to LG, which agrees with previous results that show an increasing "purity" [8] or a decrease in "emission clusters" (i.e., contaminant) [7,9] as the boule grows. The fact that previous studies [7][8][9] didn't find significant difference in damage behavior in FG vs.…”

Section: Number Of Boules >16~14~13supporting

confidence: 90%

See 1 more Smart Citation

Influence of growth behavior on laser-induced bulk damage in deuterated potassium di-hydrogen phosphate (DKDP) crystals

et al. 2013

View full text Add to dashboard Cite

Section: Number Of Boules >16~14~13supporting

confidence: 90%

“…These boules behave exactly like LL16, which we have presented in Fig. 2(b), where we have seen an increasing "purity" as the boule is grown , which is consistent with previous findings [7][8][9]. These boules in general have a better damage performance because of the lower Type 2 defect precursor absorption.…”

Section: Number Of Boules >16~14~13supporting

confidence: 90%

Influence of growth behavior on laser-induced bulk damage in deuterated potassium di-hydrogen phosphate (DKDP) crystals

et al. 2013

View full text Add to dashboard Cite

“…In order to obtain information on the nature of precursors defects, different methods have been applied. These methods can be divided into two categories: chemicals analyses (spectra, structural and composition determination, etc) and non-destructive/destructive in-situ investigations (scattering, fluorescence measurements, laser damage tests, etc) [4][5][6][7][8][9]. However, no satisfactory results are obtained by using these methods.…”

Section: Introductionmentioning

confidence: 99%

“…However, no satisfactory results are obtained by using these methods. Efforts to directly identify the defect precursors by using chemical analysis failed because the size and/or concentration of these defect precursors were lower than the limit of detection of current chemical analysis tools [4]. Some defects were detected by using fluorescence microscopy [5].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional photothermal microscopy of KDP crystals

Chen¹,

Dong²,

Zhang³

et al. 2014

SPIE Proceedings

View full text Add to dashboard Cite

The laser damage threshold of KDP crystals is one major limitation in many high-power laser systems. Investigation of laser damage behavior of KDP crystals shows that the major reason for the laser damage is due to growth defects in the bulk of the crystals. Therefore, an effective diagnostic method for those defects is quite necessary for producing KDP crystals with high enough damage threshold to meet the requirement of high power laser applications. In this paper, we reported characterization of bulk defects in KDP crystals using a three dimensional photothermal microscope based on a laser-induced photothermal lensing technique. Several 3D images of the bulk defects were obtained. The results indicated that both surface defects and bulk defects can be determined and analyzed using the 3-D photothermal microscope. Details of development of the 3-D photothermal microscope were also presented. The system provided userfriendly operations of the defects characterization process and showed great potential of application for characterization of low absorption optical materials.

show abstract

“…Because these precursors can not be identified by classical optical techniques, their size is supposed to be few nanometers. Despite the several attempts to identify their physical and chemical properties Pommiès et al, 2006), their exact nature remains unknown or their role in the LID mechanisms is not clearly established yet. From the best of our knowledge, the main candidates to be proposed are linked to hydrogen bonds ?…”

Section: Introductionmentioning

confidence: 99%