Rapid growth of large-scale (40–55 cm) KH2PO4 crystals

Zaitseva, Natalia; Yoreo, James J. De; DeHaven, Martin R.; Vital, Russell L.; Montgomery, K.; Richardson, M.; Atherton, L. J.

doi:10.1016/s0022-0248(97)00223-6

Cited by 199 publications

(108 citation statements)

References 15 publications

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“…1,2 Both potassium dihydrogen phosphate (KDP) and DKDP crystals are nature choices for National Ignition Facility (NIF) simply because of their adequate nonlinear optical properties and availability in large growth sizes. Plates of DKDP crystals are needed for the third harmonic generation (THG) in NIF for that they can effectively reduce the transverse stimulated Raman scattering (TSRS).…”

Section: Introductionmentioning

confidence: 99%

Refractive indices in the whole transmission range of partially deuterated KDP crystals

Zhu

Zhang

et al. 2013

AIP Advances

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Refractive indices of partially deuterated potassium dihydrogen phosphate (DKDP) crystals with 55%, 70% and 80% deuterium contents were measured by auto-collimation method at 293 K between 0.254 to 1.529 μm. Dependence of refractive indices of DKDP on deuterium content show different trend in the infrared region as in uv-visible region. Dependence of n2 (the square of refractive index) on the mole fraction of deuterium shows a difference between pure KDP and partially deuterated KDP. The Sellmeier equations were obtained by the least square method. The non-critical phase matching angles calculated from the fitted formula were in good agreement with laser experiment results, by which the reliability of these Sellmeier equations was confirmed.

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Section: Introductionmentioning

confidence: 99%

Refractive indices in the whole transmission range of partially deuterated KDP crystals

Zhu

Zhang

et al. 2013

AIP Advances

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“…Laser-induced damage in optical materials for high power nanosecond laser systems arises from localized energy deposition into the material due to the presence of pre-existing light absorbing defects [1][2][3][4][5][6]. Laser damage on the surface of optical materials is associated with a cascade of material response effects that include plasma formation, expansion and confinement, high pressure and temperature of the affected material, surface swelling, gaseous material ejection, generation and propagation of shockwave and stress waves, particle ejection, mechanical damage of adjacent material including cracking and pulverization, as well as elastic and plastic deformation leading to densification [7].…”

Section: Introductionmentioning

confidence: 99%

“…Fused silica and potassium dihydrogen phosphate (KDP and its deuterated analog, DKDP) are key optical materials in ICF class laser systems [1,5]. They both exhibit limitations in performance under high fluence irradiation associated with laser-induced damage.…”

Section: Introductionmentioning

confidence: 99%

Comparison of material response in fused silica and KDP following exit surface laser- induced breakdown

et al. 2013

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Crater formation that accompanies laser-induced damage is the result of material ejection following the rapid, localized heating to temperatures on the order of 1 eV. The objective of this work is to compare the material ejection behavior in fused silica and KDP crystals as captured using time-resolved shadowgraphy. These two materials are of fundamental importance in ICF class laser systems but they also represent materials with significantly different physical properties. We hypothesize that these different properties can affect the material ejection process.

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“…The design of UV laser systems, including the final optics package for the National Ignition Facility (NIF) laser [1], is limited to a large extent by the laser damage performance of the third harmonic generator, which is made from deuterated potassium dihydrogen phosphate (DKDP) [2]. The damage may occur either in the bulk of the material or on the surface.…”

Section: Introductionmentioning

confidence: 99%

Laser-induced material modification in the bulk KDP crystals

et al. 2000

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Laser induced material modifications in the bulk and on the surface of KDP (KH 2 PO 4 ) and DKDP (70-80% deuterated KDP) are studied using fluorescence imaging and spectroscopy. Photoluminescence is observed at damaged regions following above threshold exposure with an emission peak centered a t 550-nm In addition, surfaces exposed to >100 high power, 355-nm laser pulses reveal a reduced surface finishing quality as evidenced by an associated emission under UV photoexcitation. The emission spectra from the laser-induced damage sites and the laser degraded surfaces are similar suggesting t h e generation of similar defect species.

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Rapid growth of large-scale (40–55 cm) KH2PO4 crystals

Cited by 199 publications

References 15 publications

Refractive indices in the whole transmission range of partially deuterated KDP crystals

Refractive indices in the whole transmission range of partially deuterated KDP crystals

Comparison of material response in fused silica and KDP following exit surface laser- induced breakdown

Laser-induced material modification in the bulk KDP crystals

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