In-situ observation of the hole formation during deep drilling with ultrashort laser pulses

2011 ◽  
Author(s):  
Sven Döring ◽  
Sören Richter ◽  
Stefan Nolte ◽  
Andreas Tünnermann
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
In Situ Observation ◽  
Hole Formation ◽  
Deep Drilling ◽  
Ultrashort Laser

Observation of Femtosecond Laser-Induced Ablation in Crystalline Silicon

2004 ◽  
Vol 126 (5) ◽  
pp. 723-726 ◽  
Author(s):  
Tae Y. Choi ◽  
Costas P. Grigoropoulos
Keyword(s):  
Crystalline Silicon ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Reflectance Measurement ◽  
Pump And Probe ◽  
Probe Experiment ◽  
Surface Reflectivity ◽  
Enhanced Surface ◽  
Ultrashort Laser

The ablation of crystalline silicon by ultrashort laser pulses is studied experimentally. A pump-and-probe experiment is implemented in a collinear arrangement, utilizing a time-delayed frequency-doubled probe beam for in situ reflectance measurement and ultrafast microscopy observation. Enhanced surface reflectivity in sub-picosecond time scale at the center of the irradiated spot indicates nonthermal liquid layer formation. A short-lived nonthermal liquid phase was detected at fluence of 1.5J/cm2. In addition to this observation, the reflected images for pump beam fluences ranging from 1.5 to 4.6J/cm2 provide evidence of plasma expansion above the irradiated target.

scholarly journals In situ temporal measurement of ultrashort laser pulses at full power during high-intensity laser–matter interactions

Optica ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 995
Author(s):  
Helder M. Crespo ◽  
Tobias Witting ◽  
Miguel Canhota ◽  
Miguel Miranda ◽  
John W. G. Tisch
Keyword(s):  
High Intensity ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
High Intensity Laser ◽  
Full Power ◽  
Temporal Measurement ◽  
Ultrashort Laser ◽  
Intensity Laser

Welding characteristics of foturan glass using ultrashort laser pulses

2012 ◽  
Author(s):  
Isamu Miyamoto ◽  
Kristian Cvecek ◽  
Yasuhiro Okamoto ◽  
Michael Schmidt ◽  
Henry Helvajian
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Ultrashort Laser

Evaluation of Chip-Breakers Manufactured by Ultrashort Laser Pulses in Cemented Carbide Tools

2017 ◽  
Author(s):  
Marcelo Bertolete Carneiro ◽  
Patrícia Alves Barbosa ◽  
Ricardo Samad ◽  
NIlson Vieira ◽  
Wagner de Rossi ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Cemented Carbide ◽  
Cemented Carbide Tools ◽  
Ultrashort Laser

Picosecond Single-Photon and Femtosecond Two-Photon Pulsed Laser Stimulation for IC Characterization and Failure Analysis

2009 ◽  
Author(s):  
V. Pouget ◽  
E. Faraud ◽  
K. Shao ◽  
S. Jonathas ◽  
D. Horain ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Single Photon ◽  
Pulsed Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Laser Stimulation ◽  
Two Photon ◽  
Resolution Improvement ◽  
Ultrashort Laser

Abstract This paper presents the use of pulsed laser stimulation with picosecond and femtosecond laser pulses. We first discuss the resolution improvement that can be expected when using ultrashort laser pulses. Two case studies are then presented to illustrate the possibilities of the pulsed laser photoelectric stimulation in picosecond single-photon and femtosecond two-photon modes.

Sign in / Sign up

Export Citation Format

Share Document