scholarly journals Contrast ratio enhancement by spectral matching of a seed laser pulse and ASE in a Ti:sapphire laser system

2017 ◽  
Vol 25 (13) ◽  
pp. 14158 ◽  
Author(s):  
Minseok Kim ◽  
Jinju Kim ◽  
Vanessa Ling Jen Phung ◽  
Hyyong Suk
Keyword(s):  
Laser Pulse ◽  
Laser System ◽  
Contrast Ratio ◽  
Seed Laser ◽  
Spectral Matching ◽  
Ti:Sapphire Laser

scholarly journals Pedestal cleaning for high laser pulse contrast ratio with a 100 TW class laser system

2011 ◽  
Vol 19 (9) ◽  
pp. 8486 ◽  
Author(s):  
S. Fourmaux ◽  
S. Payeur ◽  
S. Buffechoux ◽  
P. Lassonde ◽  
C. St-Pierre ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser System ◽  
Contrast Ratio ◽  
High Laser ◽  
Pulse Contrast

High-contrast, high-intensity laser pulse generation using a nonlinear preamplifier in a Ti:sapphire laser system

2008 ◽  
Vol 33 (7) ◽  
pp. 645 ◽  
Author(s):  
Hiromitsu Kiriyama ◽  
Michiaki Mori ◽  
Yoshiki Nakai ◽  
Takuya Shimomura ◽  
Manabu Tanoue ◽  
...  
Keyword(s):  
Laser Pulse ◽  
High Intensity ◽  
Laser System ◽  
Pulse Generation ◽  
High Contrast ◽  
Ti:Sapphire Laser ◽  
High Intensity Laser ◽  
Intensity Laser

Demonstration of a saturated Ni-like Ag x-ray laser pumped by a single profiled laser pulse from a 10-Hz Ti:sapphire laser system

2008 ◽  
Vol 77 (2) ◽  
Author(s):  
H. T. Kim ◽  
I. W. Choi ◽  
N. Hafz ◽  
J. H. Sung ◽  
T. J. Yu ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser System ◽  
X Ray ◽  
Ti:Sapphire Laser

scholarly journals Equation-of-state studies using a 10-Hz Nd:YAG laser oscillator

2003 ◽  
Vol 21 (4) ◽  
pp. 615-626 ◽  
Author(s):  
M. SHUKLA ◽  
A. UPADHYAY ◽  
V.K. SENECHA ◽  
P. KHARE ◽  
S. BANDYAOPADHYAY ◽  
...  
Keyword(s):  
Equation Of State ◽  
Laser Pulse ◽  
Beam Quality ◽  
Impedance Matching ◽  
Laser System ◽  
Control Unit ◽  
Aluminum Foil ◽  
Single Laser Pulse ◽  
High Contrast ◽  
Single Laser

A commercial mode locked cavity dumped Nd:YAG dye laser operating at 10 Hz repetition rate is modified to produce a high contrast (>5000:1) single laser pulse while maintaining the energy stability and high beam quality. A trigger generator biases the cavity dumping photodiode, which is triggered externally by a pulse from the microprocessor-based control unit controlling a ∼2 J/200 ps laser chain. In the laser chain, the high contrast (>5000:1) is achieved by an external pulse selector based on single Pockel's cell to select a single laser pulse of high contrast, which is a prerequisite for experimental study of the equation of state. Laser-induced shock velocity measurement in thin aluminum, gold on aluminum, and copper on aluminum foil targets using this modified laser system are also presented. The equation of state of Al, Au, and Cu obtained using an impedance matching technique are in agreement with the reported results of SESAME and simulation results.

Modeling the Femtosecond Laser Pulse-Train Ablation of Dielectrics

2005 ◽  
Author(s):  
L. Jiang ◽  
H. L. Tsai
Keyword(s):  
Optical Properties ◽  
Laser Pulse ◽  
Femtosecond Laser ◽  
Pulse Train ◽  
Femtosecond Pulse ◽  
Laser System ◽  
Ablation Depth ◽  
Plasma Model ◽  
Depth Zone

Recently, a new laser micromachining technique using multiple femtosecond pulses with a picosecond-to-nanosecond separation as a train group has demonstrated the ability to increase the ablation quality of dielectrics and semiconductors. However, the mechanisms involved in the technique are not fully understood. This study employs the plasma model recently developed by the authors to analyze the femtosecond pulse-train ablation of dielectrics. It is found that the transient significantly varying optical properties are the important reasons that lead to the advantages of the pulse-train technique. It has demonstrated that there exits a constant ablation-depth zone with respect to fluence, which has also been observed experimentally. By using the pulse-train technology, it is possible to obtain repeatable nanostructures, even when the laser system is subject to some fluctuations in fluences.

5.4-TW/46-fs 10-Hz Ti:sapphire laser system

2000 ◽  
Vol 43 (5) ◽  
pp. 533-538 ◽  
Author(s):  
Zhizhan Xu ◽  
Xiaodong Yang ◽  
Luc Vigroux ◽  
Frederic Saviot ◽  
Jianping Zhou ◽  
...  
Keyword(s):  
Laser System ◽  
Ti:Sapphire Laser
Sign in / Sign up

Export Citation Format

Share Document