Modeling laser conditioning of KDP crystals

2009 ◽  
Author(s):  
Guillaume Duchateau
Keyword(s):  
Laser Conditioning ◽  
Kdp Crystals

Nd:YAG laser conditioning of KDP crystals investigated using nondestructive optical diagnostics

2013 ◽  
Author(s):  
Decheng Guo ◽  
Xiaodong Jiang ◽  
Jin Huang ◽  
Fengrui Wang ◽  
Hongjie Liu ◽  
...  
Keyword(s):  
Nd:Yag Laser ◽  
Optical Diagnostics ◽  
Laser Conditioning ◽  
Kdp Crystals

Laser conditioning process combining N/1 and S/1 programs to improve the damage resistance of KDP crystals

2009 ◽  
Author(s):  
Yuanan Zhao ◽  
Guohang Hu ◽  
Jianda Shao ◽  
Xiaofeng Liu ◽  
Hongbo He ◽  
...  
Keyword(s):  
Damage Resistance ◽  
Laser Conditioning ◽  
Conditioning Process ◽  
Kdp Crystals

Laser conditioning of KDP crystals using excimer and Nd:YAG lasers

2006 ◽  
Author(s):  
B. Bertussi ◽  
D. Damiani ◽  
M. Pommies ◽  
A. Dyan ◽  
H. Piombini ◽  
...  
Keyword(s):  
Nd:Yag Lasers ◽  
Laser Conditioning ◽  
Kdp Crystals

scholarly journals Effect of UV Laser Conditioning on the Structure of KDP Crystal

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Decheng Guo ◽  
Xiaodong Jiang ◽  
Jing Huang ◽  
Fengrui Wang ◽  
Hongjie Liu ◽  
...  
Keyword(s):  
Laser Fluence ◽  
Pulse Sequence ◽  
Damage Threshold ◽  
Uv Laser ◽  
Absorption Data ◽  
Kdp Crystal ◽  
Laser Conditioning ◽  
Before And After ◽  
The Individual ◽  
Kdp Crystals

Multiparametric raster scanning experiments for KDP crystals are carried out to study the laser conditioning efficiency as a function of laser fluence, fluence step, and pulse sequence by using ultraviolet (UV) laser irradiation with pulse duration of approximately 7 ns. It indicates that damage resistance of KDP can be enhanced after conditioning process. And laser conditioning efficiency depends on the maximal fluence which is below the damage threshold. Raman spectra and photothermal absorption have also been studied on KDP crystals before and after multiparametric laser conditioning. Photothermal absorption data reveal that absorbance of conditioned KDP crystal decreases with the increase of laser fluence and the damage threshold of low absorption area is higher. Raman analysis reveals that the effectiveness of laser conditioning relies mainly on the individual mode of PO4molecule.

scholarly journals The Strain Rate Sensitivity and Creep Behavior for the Tripler Plane of Potassium Dihydrogen Phosphate Crystal by Nanoindentation

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 369
Author(s):  
Jianhui Mao ◽  
Wenjun Liu ◽  
Dongfang Li ◽  
Chenkai Zhang ◽  
Yi Ma
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Creep Deformation ◽  
Potassium Dihydrogen Phosphate ◽  
Rate Sensitivity ◽  
Dislocation Nucleation ◽  
Machining Process ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Kdp Crystals

As an excellent multifunctional single crystal, potassium dihydrogen phosphate (KDP) is a well-known, difficult-to-process material for its soft-brittle and deliquescent nature. The surface mechanical properties are critical to the machining process; however, the characteristics of deformation behavior for KDP crystals have not been well studied. In this work, the strain rate effect on hardness was investigated on the mechanically polished tripler plane of a KDP crystal relying on nanoindentation technology. By increasing the strain rate from 0.001 to 0.1 s−1, hardness increased from 1.67 to 2.07 GPa. Hence, the strain rate sensitivity was determined as 0.053, and the activation volume of dislocation nucleation was 169 Å3. Based on the constant load-holding method, creep deformation was studied at various holding depths at room temperature. Under the spherical tip, creep deformation could be greatly enhanced with increasing holding depth, which was mainly due to the enlarged holding strain. Under the self-similar Berkovich indenter, creep strain could be reduced at a deeper location. Such an indentation size effect on creep deformation was firstly reported for KDP crystals. The strain rate sensitivity of the steady-state creep flow was estimated, and the creep mechanism was qualitatively discussed.

An investigation on the nano-abrasion wear mechanisms of KDP crystals

Wear ◽  
2021 ◽  
pp. 203692 ◽  
Author(s):  
Shengyao Yang ◽  
Liangchi Zhang ◽  
Zhonghuai Wu
Keyword(s):  
Wear Mechanisms ◽  
Abrasion Wear ◽  
Kdp Crystals

Inclusion of mother liquor inside KDP crystals in a continuous MSMPR crystallizer

2005 ◽  
Vol 43 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Hideo Miki ◽  
Tomonobu Terashima ◽  
Yusuke Asakuma ◽  
Kouji Maeda ◽  
Keisuke Fukui
Keyword(s):  
Mother Liquor ◽  
Kdp Crystals

Waveguide fabrication in KDP crystals with femtosecond laser pulses

2014 ◽  
Vol 118 (3) ◽  
pp. 831-836 ◽  
Author(s):  
Leilei Huang ◽  
Patrick Salter ◽  
Michał Karpiński ◽  
Brian Smith ◽  
Frank Payne ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Waveguide Fabrication ◽  
Kdp Crystals
Sign in / Sign up

Export Citation Format

Share Document