Silicon laser dicing with picosecond pulses at 2-µm wavelength

2021 ◽  
Author(s):  
Markus Blothe ◽  
Maxime Chambonneau ◽  
Tobias Heuermann ◽  
Martin Gebhardt ◽  
Jens Limpert ◽  
...  
Keyword(s):  
Picosecond Pulses ◽  
Silicon Laser

scholarly journals Highly efficient THz four-wave mixing in doped silicon

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Nils Dessmann ◽  
Nguyen H. Le ◽  
Viktoria Eless ◽  
Steven Chick ◽  
Kamyar Saeedi ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Optical Nonlinearities ◽  
Third Order ◽  
Picosecond Pulses ◽  
Light Pulses ◽  
A Value ◽  
Doped Silicon ◽  
Perturbative Regime ◽  
Silicon Doped

AbstractThird-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica. Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet susceptibility χ(3)L (where L represents the material thickness) as well as technological possibilities such as optically gated detection and emission of photons. Using picosecond pulses from a free electron laser, we show that silicon doped with P or Bi has a value of χ(3)L in the THz domain that is higher than that reported for any other material in any wavelength band. The immediate implication of our results is the efficient generation of intense coherent THz light via upconversion (also a χ(3) process), and they open the door to exploitation of non-degenerate mixing and optical nonlinearities beyond the perturbative regime.

scholarly journals Analytical model for the depth progress of percussion drilling with ultrashort laser pulses

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
Daniel Holder ◽  
Rudolf Weber ◽  
Thomas Graf ◽  
Volkher Onuseit ◽  
David Brinkmeier ◽  
...  
Keyword(s):  
Analytical Model ◽  
Experimental Validation ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Picosecond Pulses ◽  
Hole Depth ◽  
Laser Percussion Drilling ◽  
Pulse Energies ◽  
Ultrashort Laser ◽  
Percussion Drilling

AbstractA simplified analytical model is presented that predicts the depth progress during and the final hole depth obtained by laser percussion drilling in metals with ultrashort laser pulses. The model is based on the assumption that drilled microholes exhibit a conical shape and that the absorbed fluence linearly increases with the depth of the hole. The depth progress is calculated recursively based on the depth changes induced by the successive pulses. The experimental validation confirms the model and its assumptions for percussion drilling in stainless steel with picosecond pulses and different pulse energies.

Nonlinear methods of measuring picosecond pulses

1984 ◽  
Vol 27 (1) ◽  
pp. 88-91
Author(s):  
Yu. V. Vvedenskii ◽  
A. B. Zuev
Keyword(s):  
Nonlinear Methods ◽  
Picosecond Pulses

Nonlinear Optics of Picosecond Pulses

1971 ◽  
Vol 13 (5) ◽  
pp. 666-667 ◽  
Author(s):  
S A Akhmanov
Keyword(s):  
Nonlinear Optics ◽  
Picosecond Pulses

Interaction of intense picosecond pulses of 2.7-μmphotons with germanium

1982 ◽  
Vol 25 (4) ◽  
pp. 2587-2602 ◽  
Author(s):  
Garnett W. Bryant ◽  
Paul Kelly ◽  
Doug Ritchie ◽  
Peter Braunlich ◽  
Ansgar Schmid
Keyword(s):  
Picosecond Pulses

scholarly journals Generation of picosecond pulses directly from a 100 W, burst-mode, doping-managed Yb-doped fiber amplifier

2014 ◽  
Vol 39 (2) ◽  
pp. 236 ◽  
Author(s):  
P. Elahi ◽  
S. Yılmaz ◽  
Y. B. Eldeniz ◽  
F. Ö. Ilday
Keyword(s):  
Fiber Amplifier ◽  
Picosecond Pulses ◽  
Burst Mode

Generation of picosecond pulses in a holographic DFB-dye-laser under nanosecond excitation

1990 ◽  
Vol 52 (2) ◽  
pp. 137-141
Author(s):  
V. Yu. Kurstak ◽  
A. N. Rubinov ◽  
S. A. Ryzhechkin ◽  
T. Sh. �fendiev
Keyword(s):  
Dye Laser ◽  
Picosecond Pulses ◽  
Dfb Dye Laser

Amplification of UV picosecond pulses in high pressure XeF discharges

1977 ◽  
Vol 13 (9) ◽  
pp. 874-874
Author(s):  
I. Tomov ◽  
R. Fedosejevs ◽  
M. Richardson ◽  
W. Sarjeant ◽  
A. Alcock ◽  
...  
Keyword(s):  
High Pressure ◽  
Picosecond Pulses
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