Ultrashort-laser-pulse-induced thermal lensing effect in pure H2O and a NaCl–H2O solution

RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 114727-114737
Author(s):  
Yi-Ci Li ◽  
Yu-Ting Kuo ◽  
Po-Yuan Huang ◽  
Cheng-I. Lee ◽  
Tai-Huei Wei
Keyword(s):  
Laser Pulse ◽  
Ultrashort Laser Pulse ◽  
Laser Pulses ◽  
Thermal Lensing ◽  
Fs Laser ◽  
Lensing Effect ◽  
Thermal Lensing Effect ◽  
Ultrashort Laser

Using the Z-scan technique with 82 MHz 18 femtosecond (fs) laser pulses at 820 nm, we explore the thermal lensing effect induced in pure H2O and a NaCl–H2O solution. We verify the contributions of thermal and mass diffusions in NaCl–H2O.

Thermal lensing effect of CS2 studied with femtosecond laser pulses

2015 ◽  
Vol 17 (38) ◽  
pp. 24738-24747 ◽  
Author(s):  
Yi-Ci Li ◽  
Yu-Ting Kuo ◽  
Po-Yuan Huang ◽  
Sidney S. Yang ◽  
Cheng-I Lee ◽  
...  
Keyword(s):  
Thermal Diffusivity ◽  
Femtosecond Laser ◽  
Time Constant ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Thermal Lensing ◽  
Fs Laser ◽  
Lensing Effect ◽  
Thermal Lensing Effect

By chopping 820 nm 18 femtosecond (fs)-laser pulses into trains with both train-width and train-to-train separation considerably longer than the thermal diffusivity time constant τth of CS2, we conducted Z-scan measurements on it at various times relative to the leading pulse of each train (T's).

Control of Thermal Lensing Effect in Transparent Liquids by Femtosecond Laser Pulses

2009 ◽  
Vol 48 (9) ◽  
pp. 09LF06 ◽  
Author(s):  
Yi-Ci Li ◽  
Sou-Zi Kuo ◽  
Tai-Huei Wei ◽  
Jian-Neng Wang ◽  
Sidney S. Yang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Thermal Lensing ◽  
Lensing Effect ◽  
Thermal Lensing Effect

scholarly journals Femtosecond Laser Pulses: Generation, Measurement and Propagation

2021 ◽  
Author(s):  
Mounir Khelladi
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Ultrashort Laser Pulse ◽  
Short Pulse ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Light Pulses ◽  
Large Bandwidth ◽  
Temporal Shape ◽  
Ultrashort Laser

In this contribution some basic properties of femtosecond laser pulse are summarized. In sections 2.1–2.5 the generation of femtosecond laser pulses via mode locking is described in simple physical terms. In section 2.6 we deal with measurement of ultrashort laser pulses. The characterization of ultrashort pulses with respect to amplitude and phase is therefore based on optical correlation techniques that make of the short pulse itself. In section 3 we start with the linear properties of ultrashort light pulses. However, due to the large bandwidth, the linear dispersion is responsible for dramatic effects. To describe and manage such dispersion effects a mathematical description of an ultrashort laser pulse is given first before we continue with methods how to change the temporal shape via the frequency domain. The chapter ends with a paragraph of the wavelet representation of an ultrashort laser pulse.

Ultrashort Laser Pulse Propagation in Water

2011 ◽  
Author(s):  
George W. Kattawar ◽  
Alexei V. Sokolov
Keyword(s):  
Laser Pulse ◽  
Pulse Propagation ◽  
Ultrashort Laser Pulse ◽  
Ultrashort Laser

scholarly journals Targets with cone-shaped microstructures from various materials for enhanced high-intensity laser–matter interaction

2021 ◽  
Vol 9 ◽  
Author(s):  
Tina Ebert ◽  
René Heber ◽  
Torsten Abel ◽  
Johannes Bieker ◽  
Gabriel Schaumann ◽  
...  
Keyword(s):  
Laser Pulse ◽  
High Intensity ◽  
Ultrashort Laser Pulse ◽  
Process Chain ◽  
Pulse Processing ◽  
High Intensity Laser ◽  
Matter Interaction ◽  
Different Characteristics ◽  
Ultrashort Laser ◽  
Intensity Laser

Abstract Targets with microstructured front surfaces have shown great potential in improving high-intensity laser–matter interaction. We present cone-shaped microstructures made out of silicon and titanium created by ultrashort laser pulse processing with different characteristics. In addition, we illustrate a process chain based on moulding to recreate the laser-processed samples out of polydimethylsiloxane, polystyrol and copper. With all described methods, samples of large sizes can be manufactured, therefore allowing time-efficient, cost-reduced and reliable ways to fabricate large quantities of identical targets.

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