Temperature study of absorption and photoluminescence spectra of CdSx Se1-x films grown on quartz substrate by pulse laser ablation technique

2000 ◽  
Author(s):  
G. Perna ◽  
V. Capozzi ◽  
S. Pagliara ◽  
M. Ambrico
Keyword(s):  
Laser Ablation ◽  
Pulse Laser ◽  
Pulse Laser Ablation ◽  
Quartz Substrate ◽  
Photoluminescence Spectra ◽  
Temperature Study ◽  
Ablation Technique ◽  
Laser Ablation Technique

scholarly journals the Synthesis of Cinnamon Nanoparticles by Using Laser Ablation Technique

2021 ◽  
Vol 19 (49) ◽  
pp. 7-14
Author(s):  
Awatif Saber Jasim ◽  
Saif Khalel Jasim ◽  
Ammar Ayesh Habeeb
Keyword(s):  
Laser Ablation ◽  
Pulse Laser ◽  
Biological Activities ◽  
Laser Pulses ◽  
Laser Wavelength ◽  
Growth Media ◽  
Ablation Technique ◽  
Fundamental Laser ◽  
Broad Variety ◽  
Laser Ablation Technique

    The natural  polyphenolic  compound that cinnamon contains is well known for its various biological activities, a broad variety of pharmacological and therapeutic properties.  Diversified biomedical and pharmacological applications benefit from organic nanoparticles with controlled properties. Bioactive and non-toxic, cinnamon nanoparticles (CNPs) can be effective antibacterial agents. Driven by this idea, we prepared spherical CNPs using liquid (PLAL) pulse laser ablation technique and defined those NPs. Using Q-switched Nd : YAG With a wavelength of 1064 nm  pulse laser of constant energy 500 mj , And different laser pulses ( 250 , 500 , 750 , 1000 ) pulse /sec a pure cinnamon target submerged in liquid ethanol (5 mL) was ablated. The results on the composition, morphology and optical properties of as-grown CNPs of differing laser fluence were determined. Samples were described through  Fe-SEM , UV-Vis , FTIR , The synergy between ethanol as liquid growth media and fundamental laser wavelength has been due to certain distinctive characteristics of CNPs. It has been developed that the spherical CNPs achieved in the suspension of ethanol could be beneficial for antioxidant purposes.

Silicon Thinning using Ultra-Short Pulse Laser Ablation

2004 ◽  
Author(s):  
F. Beaudoin ◽  
P. Perdu ◽  
C. DeNardi ◽  
R. Desplats ◽  
J. Lopez ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Sample Preparation ◽  
Pulse Laser ◽  
Pulse Laser Ablation ◽  
Short Pulse ◽  
Special Care ◽  
Short Pulse Laser ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

Abstract Ultra-short pulse laser ablation is applied to IC backside sample preparation. It is contact-less, non-thermal, precise and can ablate the various types of material present in IC packages. This study concerns the optimization of ultra-short pulse laser ablation for silicon thinning. Uncontrolled silicon roughness and poor uniformity of the laser thinned cavity needed to be tackled. Special care is taken to minimize the silicon RMS roughness to less than 1µm. Application to sample preparation of 256Mbit devices is presented.

Sign in / Sign up

Export Citation Format

Share Document