Analysis of frequency modulation of femtosecond laser pulses with various incident pulse shape at SHG in medium with combined nonlinear response

2018 ◽  
Author(s):  
Vyacheslav A. Trofimov ◽  
Dmitry Kharitonov ◽  
Mikhail Fedotov
Keyword(s):  
Femtosecond Laser ◽  
Frequency Modulation ◽  
Pulse Shape ◽  
Nonlinear Response ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Incident Pulse

Investigations on the properties of filament generated in gas mixtures pumped by femtosecond laser pulses

2021 ◽  
Author(s):  
Chenrui Jing ◽  
Zhaohui Wang ◽  
Xiexing Qi
Keyword(s):  
Femtosecond Laser ◽  
Pulse Duration ◽  
Plasma Density ◽  
Noble Gases ◽  
Noble Gas ◽  
Laser Pulses ◽  
Gas Mixtures ◽  
Femtosecond Laser Pulses ◽  
Incident Pulse ◽  
Refractive Indices

Abstract In this paper, we compare the properties of filament generated in Ne-N2 mixture, pure N2, Kr-N2 mixture and Xe-N2 mixture pumped by femtosecond laser pulses systematically. Due to different nonlinear refractive indices and ioniation potentials of these noble gases, the clamped intensity and plasma density can be tuned in a certain range when a small amount of different noble gases is injected into pure N2. In addition, we also demonstrate that the higher proportional of noble gas and shorter incident pulse duration can benefit to manipulate the plasma density in a relative larger scale.

Influence of Trap States on the Kinetics of Luminescence and Induced Light Absorption by Si Nanoparticles in a SiO2 Matrix at Their Excitation with Femtosecond Laser Pulses

2013 ◽  
Vol 58 (1) ◽  
pp. 20-25
Author(s):  
V.M. Kadan ◽  
◽  
I.Z. Indutnyi ◽  
V.A. Dan’ko ◽  
P.E. Shepelyavyi ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Light Absorption ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Trap States ◽  
Sio2 Matrix ◽  
Si Nanoparticles ◽  
Kinetics Of

Inorganic-organic Hybrid Materials for Real 3-D Sub-νm Lithography

2003 ◽  
Vol 780 ◽  
Author(s):  
R. Houbertz ◽  
J. Schulz ◽  
L. Fröhlich ◽  
G. Domann ◽  
M. Popall ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Sol Gel ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Hybrid Polymer ◽  
Organic Hybrid ◽  
Two Photon ◽  
Applied Technology ◽  
Scale Structures ◽  
Sol Gel Synthesis

AbstractReal 3-D sub-νm lithography was performed with two-photon polymerization (2PP) using inorganic-organic hybrid polymer (ORMOCER®) resins. The hybrid polymers were synthesized by hydrolysis/polycondensation reactions (modified sol-gel synthesis) which allows one to tailor their material properties towards the respective applications, i.e., dielectrics, optics or passivation. Due to their photosensitive organic functionalities, ORMOCER®s can be patterned by conventional photo-lithography as well as by femtosecond laser pulses at 780 nm. This results in polymerized (solid) structures where the non-polymerized parts can be removed by conventional developers.ORMOCER® structures as small as 200 nm or even below were generated by 2PP of the resins using femtosecond laser pulses. It is demonstrated that ORMOCER®s have the potential to be used in components or devices built up by nm-scale structures such as, e.g., photonic crystals. Aspects of the materials in conjunction to the applied technology are discussed.

Ablation of metals with femtosecond laser pulses

2001 ◽  
Author(s):  
K. H. Leong ◽  
T. Y. Plew ◽  
R. L. Maynard ◽  
A. A. Said ◽  
L. A. Walker
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

Nanostructuring with Femtosecond Laser Pulses on Patterned DLC Surface

2008 ◽  
Vol 3 (2) ◽  
pp. 84-87
Author(s):  
Godai Miyaji
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

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.

Storing energy in lithium fluoride crystals irradiated with femtosecond laser pulses

2016 ◽  
Vol 80 (1) ◽  
pp. 85-88 ◽  
Author(s):  
V. P. Dresvyanskiy ◽  
M. A. Moiseeva ◽  
A. V. Kuznetsov ◽  
D. S. Glazunov ◽  
B. Chadraa ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Lithium Fluoride ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Fluoride Crystals

Investigation of the instabilities of an expanding plasma created during ablation of solid targets by intense femtosecond laser pulses

2020 ◽  
Author(s):  
A. N. Stepanov ◽  
M. A. Garasev ◽  
Vl. V. Kocharovsky ◽  
A. I. Korytin ◽  
A. A. Murzanev ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

scholarly journals Regulating disordered plasmonic nanoparticles into polarization sensitive metasurfaces

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shulei Li ◽  
Mingcheng Panmai ◽  
Shaolong Tie ◽  
Yi Xu ◽  
Jin Xiang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Metallic Nanoparticles ◽  
Near Infrared ◽  
Optical Memory ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Optical Diffraction ◽  
Plasmonic Nanoparticles ◽  
Direct Laser

Abstract Metasurfaces composed of regularly arranged and deliberately oriented metallic nanoparticles can be employed to manipulate the amplitude, phase and polarization of an incident electromagnetic wave. The metasurfaces operating in the visible to near infrared spectral range rely on the modern fabrication technologies which offer a spatial resolution beyond the optical diffraction limit. Although direct laser writing is an alternative to the fabrication of nanostructures, the achievement of regular nanostructures with deep-subwavelength periods by using this method remains a big challenge. Here, we proposed and demonstrated a novel strategy for regulating disordered plasmonic nanoparticles into nanogratings with deep-subwavelength periods and reshaped nanoparticles by using femtosecond laser pulses. The orientations of the nanogratings depend strongly on the polarization of the femtosecond laser light. Such nanogratings exhibit reflection and polarization control over the reflected light, enabling the realization of polarization sensitive optical memory and color display with high spatial resolution and good chromacity.

scholarly journals Modeling the time-dependent electron dynamics in dielectric materials induced by two-color femtosecond laser pulses: Applications to material modifications

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
P. González de Alaiza Martínez ◽  
E. Smetanina ◽  
I. Thiele ◽  
B. Chimier ◽  
G. Duchateau
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Dielectric Materials ◽  
Femtosecond Laser Pulses ◽  
Time Dependent ◽  
Electron Dynamics
Sign in / Sign up

Export Citation Format

Share Document