Generation of coherent off-diagonal raman-active phonons by femtosecond laser pulses in high-temperature superconductor YBa2Cu3O7−x

We applied the femtosecond laser-assisted etching technique, that is, irradiation of focused femtosecond laser pulses followed by selective chemical etching, to volume removal inside sapphire. At room temperature, volume etching only slightly advanced while residue remained inside the volume. By increasing the etching temperature, complete volume etching without residue was achieved. Complete etching was, however, accompanied by undesirable phenomena of surface pits or cracks, which are expected to be excluded through further improvement of processing.

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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

Ukrainian Journal of Physics ◽

10.15407/ujpe58.01.0020 ◽

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

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

MRS Proceedings ◽

10.1557/proc-780-y4.12 ◽

2003 ◽

Vol 780 ◽

Cited By ~ 1

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.

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Ablation of metals with femtosecond laser pulses

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5059824 ◽

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

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Nanostructuring with Femtosecond Laser Pulses on Patterned DLC Surface

Journal of Laser Micro/Nanoengineering ◽

10.2961/jlmn.2008.02.0005 ◽

2008 ◽

Vol 3 (2) ◽

pp. 84-87

Author(s):

Godai Miyaji

Keyword(s):

Femtosecond Laser ◽

Laser Pulses ◽

Femtosecond Laser Pulses

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

ISTFA 2009: Conference Proceedings from the 35th International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2009p0268 ◽

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.

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