scholarly journals Nd:YAG laser ablation of micro-crystalline graphite in a water suspension

2021 ◽  
Vol 1859 (1) ◽  
pp. 012006
Author(s):  
T Milenov ◽  
D Dimov ◽  
A Nikolov ◽  
N Stankova ◽  
I Avramova ◽  
...  
2021 ◽  
pp. 101491
Author(s):  
T. Milenov ◽  
D. Dimov ◽  
A. Nikolov ◽  
N. Stankova ◽  
I. Avramova ◽  
...  

2004 ◽  
Vol 39 (13) ◽  
pp. 2089-2101 ◽  
Author(s):  
L.C. Nistor ◽  
C. Ghica ◽  
V.S. Teodorescu ◽  
S.V. Nistor ◽  
M. Dinescu ◽  
...  

2018 ◽  
Vol 88 (1) ◽  
pp. 168-174.e1 ◽  
Author(s):  
Francesco Maria Di Matteo ◽  
Paola Saccomandi ◽  
Margareth Martino ◽  
Monica Pandolfi ◽  
Margherita Pizzicannella ◽  
...  

2019 ◽  
Vol 14 (31) ◽  
pp. 205-214
Author(s):  
Ali A-K. Hussain

In this work, the spectra for plasma glow produced by pulseNd:YAG laser (λ=532 and 1064nm) on Ag:Al alloy with same molarratio samples in distilled water were analyzed by studying the atomiclines compared with aluminum and silver strong standard lines. Theeffect of laser energies of the range 300 to 800 mJ on spectral lines,produced by laser ablation, were investigated using opticalspectroscopy. The electron temperature was found to be increasedfrom 1.698 to 1.899 eV, while the electron density decreased from2.247×1015 to 5.08×1014 cm-3 with increasing laser energy from 300to 800 mJ with wavelength of 1064 nm. The values of electrontemperature using second harmonic frequency are greater than of1064 nm, which increased from 2.405 to 2.444 eV, while the electrondensity decreased from 2.210×1015 to 1.516×1015 cm-3 withincreasing laser energy for the same energy range.


1996 ◽  
Vol 63 (1_suppl) ◽  
pp. 148-152 ◽  
Author(s):  
A. Barbieri ◽  
B. Monica ◽  
M. Zivieri ◽  
G.P. Incarbone ◽  
G.L. Pozzoli ◽  
...  

From November 1992 to the present, 50 patients, most of whom suffering from severe cardiovascular, respiratory, neurological or hemocoagulative disorders, underwent laser prostatic ablation (VLAP) with Nd:YAG laser. Clinical and uroflowmetric follow-up at 6 weeks, 3 and 6 months showed significant improvement with low morbidity. We believe that VLAP is an alternative to TURP in patients with BPH. A better definition of techniques and overcoming the restrictions due to the learning curve could lead to even better results in the future.


1996 ◽  
Vol 457 ◽  
Author(s):  
Hiroshi T. Komiyama ◽  
Azuchi Harano ◽  
Tatsuya Okubo ◽  
Masayoshi Sadakata

ABSTRACTSeveral kinds of zeolites, crystal-SiO2 (α-quartz), arnorphous-SiO2 (quartz glass and ultrafine particles) and α-Al2O3, were ablated by an Nd:YAG laser. Generated positive ions from the targets were measured by TOF-MS (time-of-flight mass spectrometry). In the TOF mass spectra of ablated zeolites, TOx (x=0–2, T = tetrahedral atom, e.g., Si, Al), T2Ox (x=1) and T3Ox (x=4,5) were observed up to m/z=170 (m = mass, z = plus charge of clusters). In the spectra due to the oc-quartz, quartz glass and an α-Al2O3 plate, smaller species, T+, TO+ and TO2+, were mainly detected. These results demonstrate that the clusters from zeolites reflect the characters of the mother structure.


Author(s):  
Koichi Mori ◽  
Kohei Anju ◽  
Akihiro Sasoh ◽  
Eugene Zaretsky

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