Low-pressure nitrogen laser pulse repetition frequency to 100 Hz

1991 ◽  
Author(s):  
Jocef Makuchowski ◽  
Ludwik J. Pokora ◽  
Janusz Wawer
Keyword(s):  
Laser Pulse ◽  
Pulse Repetition Frequency ◽  
Low Pressure ◽  
Repetition Frequency ◽  
Pulse Repetition ◽  
Nitrogen Laser

scholarly journals Impact of laser pulse repetition frequency on nucleation and growth of LiNbO3 thin films

2021 ◽  
pp. 2160019
Author(s):  
Z. Vakulov ◽  
D. Khakhulin ◽  
A. Geldash ◽  
R. V. Tominov ◽  
V. S. Klimin ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Pulse ◽  
Pulse Repetition Frequency ◽  
Green Energy ◽  
Repetition Frequency ◽  
Pulse Repetition ◽  
Physical Parameters ◽  
Energy Devices ◽  
Piezoelectric Energy ◽  
The Impact

This paper reports the impact of the laser pulse repetition frequency on growth processes, morphological and electro-physical parameters of nanocrystalline LiNbO3 thin films obtained by the pulsed laser deposition technique. It was found that the nucleation process in LiNbO3 films could controllably change by increasing the laser pulse repetition frequency. The film obtained at the repetition frequency of 4 Hz consists of local islands and clusters with a diameter of 118.1 ± 5.9 nm. Nanocrystalline films, grown at the repetition frequency of 10 Hz, possess a continuous granular structure with a grain diameter of 235 ± 11.75 nm. Achieved results can be used for the development of promising “green” energy devices based on lead-free piezoelectric energy harvesters.

Characteristic Structures on Film Induced by Femtosecond Laser Pulse Irradiation

2011 ◽  
Vol 179-180 ◽  
pp. 891-894
Author(s):  
Dong Qing Yuan ◽  
Jian Ting Xu
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Formation Mechanism ◽  
Pulse Repetition Frequency ◽  
Single Pulse ◽  
Repetition Frequency ◽  
Pulse Repetition ◽  
Pulse Irradiation ◽  
Cr Film

With femtosecond laser pulse (130 fs, 800 nm, 1 kHz pulse repetition frequency) irradiation on Au/Cr film stack, several nanostructures were obtained. The influence of laser parameters such as fluence(0.5J/cm2,2J/cm2) and the number of pulse were investigate. With single pulse irradiation, the nanoline and periodic ripple structures were obtained for the pulse fluence of 0.5J/cm2 and 2J/cm2, respectively. The formation mechanism of those nanostructures were discussed.

Relationship between damage to polymers and the laser pulse repetition frequency

1989 ◽  
Vol 19 (5) ◽  
pp. 673-675
Author(s):  
G Ya Glauberman ◽  
N F Pilipetskiĭ ◽  
S Yu Savanin ◽  
V V Shkunov
Keyword(s):  
Laser Pulse ◽  
Pulse Repetition Frequency ◽  
Repetition Frequency ◽  
Pulse Repetition
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