scholarly journals Simultaneous Enhancement of Contrast and Power of Femtosecond Laser Pulses by Nonlinear Interferometer

Photonics ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 520
Author(s):  
Yasser Nada ◽  
Efim Khazanov
Keyword(s):  
Femtosecond Laser ◽  
Laser Power ◽  
Pulse Compression ◽  
Laser Pulses ◽  
Output Pulse ◽  
Femtosecond Laser Pulses ◽  
Temporal Contrast ◽  
Nonlinear Phase ◽  
Power Increase ◽  
Mirror Use

We showed that the nonlinear Mach–Zehnder interferometer may be used not only for enhancing temporal contrast, as proposed earlier, but also for increasing pulse power due to efficient pulse compression. The interferometer introduces into the output pulse a nonlinear phase equal to π/2. This allows increasing laser power by a factor of 1.5 only by means of a chirped mirror. Use of an additional nonlinear plate leads to a multi-fold power increase retaining the contrast enhancement.

scholarly journals Generation of 25-TW Femtosecond Laser Pulses at 515 nm with Extremely High Temporal Contrast

2015 ◽  
Vol 5 (4) ◽  
pp. 1970-1979 ◽  
Author(s):  
Marco Hornung ◽  
Georg Becker ◽  
Andreas Seidel ◽  
Jan Reislöhner ◽  
Hartmut Liebetrau ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Temporal Contrast

The Componential and Morphological Characteristics of Cu3N Induced by Femtosecond Laser Pulses

2014 ◽  
Vol 609-610 ◽  
pp. 135-140 ◽  
Author(s):  
Ning Yi Yuan ◽  
Shu Yong Wang ◽  
Jian Ning Ding ◽  
Jian Hua Qiu ◽  
Xiu Qing Wang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Power ◽  
Morphological Characteristics ◽  
Laser Pulses ◽  
Xrd Analysis ◽  
Femtosecond Laser Pulses ◽  
Femtosecond Laser Irradiation ◽  
Microelectronic Devices ◽  
Treated Sample ◽  
Evolutional Process

We systematically study the componential and morphological characteristics of Cu3N films induced by femtosecond laser irradiation on glass substrate. The experimental results demonstrate that with increase of laser power, significant changes on surface morphology can be observed, and coarse ripples structures present dominantly on film surfaces after irradiated by femtosecond laser. By XRD analysis of the treated sample area, componential evolutional process from the Cu3N to Cu can be revealed at with increase of laser power, which provides an attracting application prospect in the field of utilizing microelectronic devices.

scholarly journals On the temporal contrast of high intensity femtosecond laser pulses

2005 ◽  
Vol 23 (03) ◽  
Author(s):  
K. OSVAY ◽  
M. CSATÁRI ◽  
I.N. ROSS ◽  
A. PERSSON ◽  
C.-G. WAHLSTRÖM
Keyword(s):  
Femtosecond Laser ◽  
High Intensity ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Temporal Contrast

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.

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