Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ignas Astrauskas"'
Autor:
Claudia Gollner, Mostafa Shalaby, Corinne Brodeur, Ignas Astrauskas, Rokas Jutas, Evan Constable, Lorenz Bergen, Andrius Baltuška, Audrius Pugžlys
Publikováno v:
APL Photonics, Vol 6, Iss 4, Pp 046105-046105-6 (2021)
We report on efficient THz generation in DAST by optical rectification of intense mid-IR pulses centered at (i) 3.9 μm and (ii) its second harmonic at 1.95 μm. Suppression of multi-photon absorption shifts the onset of saturation of the THz convers
Externí odkaz:
https://doaj.org/article/b1a6db8f5f574ba4876bd32ed5c94596
Autor:
Audrius Pugzlys, Andrius Baltuška, Ryszard Buczynski, M. Longobucco, Frantisek Uherek, Dariusz Pysz, I. Bugar, Ignas Astrauskas
Publikováno v:
Journal of Lightwave Technology. 39:5111-5117
All-optical switching of 75 fs pulses centered at 1560 nm, driven by 270 fs, 1030 nm pulses in a dual-core optical fiber exhibiting high index contrast is presented. The fiber is made of a thermally matched pair of lead silicate and borosilicate glas
Autor:
Viet Hung Nguyen, Le Xuan The Tai, Mattia Longobucco, Ryszard Buczyński, Ignac Bugár, Ignas Astrauskas, Audrius Pugžlys, Andrius Baltuška, Boris Malomed, Marek Trippenbach
Publikováno v:
Chaos, Solitons & Fractals. 167:113045
We investigate experimentally and theoretically effects of the inter-core propagation mismatch on nonlinear switching in dual-core high-index-contrast soft-glass optical fibers. Incident femtosecond pulses of various energy are fed into a single ("st
Autor:
Mattia Longobucco, Ignas Astrauskas, Audrius Pugzlys, Nhat T. Dang, Dariusz Pysz, František Uherek, Andrius Baltuška, Ryszard Buczyński, Ignác Bugár
Publikováno v:
Optical Components and Materials XIX.
Autor:
Dariusz Pysz, Nhat Thai Dang, Andrius Baltuška, M. Longobucco, Frantisek Uherek, Audrius Pugžlys, Ignas Astrauskas, Ignac Bugar, Ryszard Buczynski
Publikováno v:
Applied optics. 60(32)
We present a complex study of pulse-energy-controlled solitonic self-switching of femtosecond pulses at wavelengths of 1700 and 1560 nm in two nonlinear high-index contrast dual-core fibers having different levels of slight asymmetry. In the case of
Autor:
Rokas Jutas, Mostafa Shalaby, Claudia Gollner, Andrius Baltuška, Ignas Astrauskas, Audrius Pugzlys, Corinne Brodeur
Publikováno v:
Scopus-Elsevier
Due to numerous unique properties, such as the capability of resonantly exciting crystal lattice vibrations, molecular rotations and other low energy transitions in solids, liquids and gases, terahertz radiation belongs to one of the most interesting
Publikováno v:
Laser Congress 2021 (ASSL,LAC).
A pair of sub-mJ femtosecond pulses separated by 110 ns, generated in a single cw-pumped Yb regenerative amplifier, is employed as a frontend for mid-IR OPCPA operating in the atmospheric transparency window.
Autor:
Ignac Bugar, Ryszard Buczynski, Audrius Pugzlys, Dariusz Pysz, Andrius Baltuška, Ignas Astrauskas, M. Longobucco, Frantisek Uherek
Publikováno v:
2020 IEEE Photonics Conference (IPC).
We demonstrate a pulse energy-governed nonlinear self-switching of femtosecond pulses at the wavelengths of 1700 nm and 1560 nm in a highly nonlinear high index contrast dual-core fiber. The improved technology process allowed the first-time registra
Autor:
Andrius Baltuška, Ryszard Buczynski, Ignas Astrauskas, Dariusz Pysz, Audrius Pugzlys, M. Longobucco, Frantisek Uherek, Ignac Bugar
Publikováno v:
ICTON
All-optical switching of 77 fs pulses centered at 1550 nm, driven by 270 fs, 1030 nm pulses in dual-core optical fibre exhibiting high index contrast is presented. The switching is achieved by nonlinear balancing of dual-core asymmetry. High switchin
Efficient THz generation by optical rectification of intense mid-infrared pulses in organic crystals
Autor:
Mostafa Shalaby, Ignas Astrauskas, Andrius Baltuška, Corinne Brodeur, Audrius Pugzlys, Claudia Gollner
Publikováno v:
The 22nd International Conference on Ultrafast Phenomena 2020.
We report on efficient THz generation in DAST, driven by mid-infrared pump sources. Due to the suppression of multi-photon absorption, high pump fluences can be applied and outstanding optical to THz conversion efficiencies of more than 4% can be rea