Surface-Damage Threshold Measurements for Several Laser Glasses

2009 ◽  
pp. 69-69-10 ◽  
Author(s):  
J. E. Swain
Keyword(s):  
Damage Threshold ◽  
Surface Damage

scholarly journals Studies on Structural, Spectral, and Optical Properties of Organic Nonlinear Optical Single Crystal: 2-Amino-4,6-dimethylpyrimidinium p-Hydroxybenzoate

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
S. Sudhahar ◽  
M. Krishna Kumar ◽  
A. Silambarasan ◽  
R. Muralidharan ◽  
R. Mohan Kumar
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Visible Spectrum ◽  
Damage Threshold ◽  
Surface Damage ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters ◽  
Infrared Spectral ◽  
Growth Method

2-Amino-4,6-dimethylpyrimidinium p-hydroxybenzoate (ADPHB), a novel organic material, was synthesized, and crystals were grown by slow evaporation solution growth method. The cell parameters and crystalline perfection of the grown crystal were studied by single crystal and powder X-ray diffraction analyses. The presence of various functional groups of the grown crystal was confirmed using Fourier Transform infrared spectral analysis. UV-Visible spectrum shows that ADPHB crystals have high transmittance in the range 305–900 nm. The refractive index and transient photoluminescence properties of the grown crystal were analyzed. The laser induced surface damage threshold, optical birefringence, and second harmonic generation efficiency of the grown crystal were studied.

Optical and Mechanical Studies on Methyl N- Phenylsuccinamate (MPS)

2012 ◽  
Vol 584 ◽  
pp. 51-55
Author(s):  
P. Vivek ◽  
P. Murugakoothan
Keyword(s):  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Surface Damage ◽  
Optical Transmittance ◽  
Generation Efficiency ◽  
Second Harmonic Generation Efficiency ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Mechanical Studies

Single crystal of organic material Methyl N- phenylsuccinamate (MPS) has been grown by the slow evaporation technique using methanol as a solvent. The crystal belongs to orthorhombic system with non centrosymmetric space group Pna21. Optical transmittance and second harmonic generation efficiency of the grown crystals have been studied by UV-vis-NIR spectrum and Kurtz powder technique respectively. The transmittance of MPS crystal has been used to calculate the refractive index (n), the extinction coefficient (k) and reflectance (R). The laser induced surface damage threshold for the grown crystal has been measured using Nd:YAG laser. The mechanical behaviour of the MPS crystal has also been analyzed.

Numerical simulation on 1 on 1 surface damage threshold test of fused SiO2with Monte Carlo method

2015 ◽  
Author(s):  
Rongsheng Ba ◽  
Xinda Zhou ◽  
Yinbo Zheng ◽  
Jing Yuan ◽  
Lei Ding ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Damage Threshold ◽  
Surface Damage ◽  
Threshold Test

scholarly journals Express method of estimating laser-induced surface damage threshold for optical components

2002 ◽  
Vol 20 (1) ◽  
pp. 133-137 ◽  
Author(s):  
V.S. SIRAZETDINOV ◽  
V.N. ALEKSEEV ◽  
D.I. DMITRIEV ◽  
A.V. CHARUKHCHEV ◽  
V.N. CHERNOV ◽  
...  
Keyword(s):  
Laser System ◽  
Damage Threshold ◽  
Surface Damage ◽  
Film Coating ◽  
Statistical Nature ◽  
Thin Film Coating ◽  
Optical Elements ◽  
Optical Components ◽  
System A ◽  
Laser Induced Damage

The present measurements of the components' surface resistance to laser-induced damage has been completed to facilitate development and construction of the “Luch” laser system, a four-channel Nd-phosphate glass laser with a full output energy of E = 14–16 kJ. The study describes a method that, with a series of experimental data obtained from a single sample, allows us not only to estimate the threshold fluences, but to take into account the statistical nature of the surface damage. In a number of experimental situations this method makes it possible to estimate damaging fluences even from the result of a single exposure of the studied surface. Estimated threshold fluences for various optical elements are presented: K8 glass, experimental phosphate laser glass KGSS-0180, high-reflecting and antireflecting thin-film coating of elements. The 1.054-μm radiation pulse with half-height duration of 4 ns and the irradiation spot of ∼4 mm in diameter were used in the experiment.

scholarly journals SSD detection on LIDT tested coated Fused Silica samples

2021 ◽  
Vol 255 ◽  
pp. 03009
Author(s):  
Heidi Cattaneo ◽  
Daniel Schachtler ◽  
Roelene Botha ◽  
Oliver Fähnle
Keyword(s):  
Laser Energy ◽  
Substrate Surface ◽  
Single Layer ◽  
Damage Threshold ◽  
Surface Damage ◽  
Laser Pulses ◽  
Fused Silica ◽  
Small Surface ◽  
Additional Information ◽  
Laser Induced Damage

Material changes and Sub-Surface Damage (SSD) under Laser Induced Damage Threshold (LIDT) testing sites were investigated on 3 diverse single layer coated transparent fused silica samples to obtain additional information on damage precursors on these samples. As a detection method, photothermal deflection technique utilizing a resonant UV laser beam was used. The local variations in UV absorption and probe beam transmittance due to previous exposure to high fluence laser pulses were strongly dependent on the coating itself and on the laser energy used during the LIDT testing. Also the obtained LIDT values differ from coating to coating. Detected effects on the coatings and substrate surface beneath ranged from small surface dislocations to complete coating damage with material transformations. Additional absorbing damage precursors were found close to the damaged sites.

Experimental investigation on laser-induced surface damage threshold of Nd-doped phosphate glass

2012 ◽  
Vol 10 (4) ◽  
pp. 041403-41406 ◽  
Author(s):  
Junjiang Hu Junjiang Hu ◽  
Lei Zhang Lei Zhang ◽  
Wei Chen Wei Chen ◽  
Changhe Zhou Changhe Zhou ◽  
Lili Hu Lili Hu
Keyword(s):  
Experimental Investigation ◽  
Phosphate Glass ◽  
Damage Threshold ◽  
Surface Damage
Sign in / Sign up

Export Citation Format

Share Document