Time-delay compensated monochromator for the spectral selection of extreme-ultraviolet high-order laser harmonics

2009 ◽  
Vol 80 (12) ◽  
pp. 123109 ◽  
Author(s):  
Luca Poletto ◽  
Paolo Villoresi ◽  
Fabio Frassetto ◽  
Francesca Calegari ◽  
Federico Ferrari ◽  
...  
Keyword(s):  
Time Delay ◽  
Extreme Ultraviolet ◽  
High Order ◽  
Spectral Selection ◽  
Selection Of

scholarly journals Generation and complete temporal characterization of 5-fs EUV pulses

2019 ◽  
Vol 205 ◽  
pp. 02009
Author(s):  
Matteo Lucchini ◽  
Giacinto D. Lucarelli ◽  
Mario Murari ◽  
Andrea Trabattoni ◽  
Nicola Fabris ◽  
...  
Keyword(s):  
Time Delay ◽  
Harmonic Generation ◽  
Extreme Ultraviolet ◽  
High Order ◽  
High Order Harmonic Generation ◽  
High Order Harmonic ◽  
Reconstruction Methods

Extreme-ultraviolet pulses as short as 5 fs, produced by high-order harmonic generation and selected by a time-delay compensated monochromator, were fully reconstructed thanks to an advanced ptychographic technique, while most commonly used reconstruction methods fail. These pulses constitute the shortest extreme ultraviolet pulses ever achieved via a time-delay compensated monochromator.

scholarly journals Adaptive cooperative control for high-order nonlinear multiagent time-delay systems using barrier functions

2020 ◽  
Vol 53 (2) ◽  
pp. 4044-4051
Author(s):  
Jiacheng Song ◽  
Yongfeng Ju ◽  
Maode Yan ◽  
Panpan Yang ◽  
Lei Zuo
Keyword(s):  
Time Delay ◽  
Cooperative Control ◽  
High Order ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Barrier Functions

scholarly journals Attosecond source generation using polarized gating two-color field combined with unipolar pulse

2016 ◽  
Vol 94 (7) ◽  
pp. 651-658 ◽  
Author(s):  
Liqiang Feng ◽  
Hang Liu
Keyword(s):  
Harmonic Generation ◽  
Extreme Ultraviolet ◽  
Harmonic Spectrum ◽  
High Order ◽  
High Order Harmonic Generation ◽  
Emission Process ◽  
Harmonic Emission ◽  
High Order Harmonic ◽  
Unipolar Pulse ◽  
Color Field

High-order harmonic generation and attosecond extreme-ultraviolet source generation have been theoretically investigated by controlling the two-color polarized gating field combined with the unipolar pulse. The results show that by properly optimizing the polarized two-color field as well as the unipolar pulse, not only is the harmonic cutoff remarkably extended, but the single short quantum path has also been selected to contribute to the harmonic spectrum, resulting in a 313 eV less modulated supercontinuum. Classical and quantum analyses are shown to explain the harmonic emission process. Finally, the proper superposition of harmonics, a series of isolated sub-50 as pulses, can be obtained.

Design of LQR based PI controller with optimum selection of weights for Time Delay Process

2021 ◽  
Author(s):  
K Harshavardhana Reddy ◽  
Sachin Sharma ◽  
B. Madhuri ◽  
K Shivarama Krishna
Keyword(s):  
Time Delay ◽  
Pi Controller ◽  
Optimum Selection ◽  
Selection Of
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