Two-Dimensional Spectral Shearing Interferometry (2DSI) of Few-Cycle Laser Pulses

2007 ◽  
Author(s):  
F. X. Kärtner ◽  
J. Birge
Keyword(s):  
Laser Pulses ◽  
Two Dimensional ◽  
Shearing Interferometry

scholarly journals High harmonic generation in two-dimensional Mott insulators

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Christopher Orthodoxou ◽  
Amelle Zaïr ◽  
George H. Booth
Keyword(s):  
Quantum Monte Carlo ◽  
Strong Field ◽  
High Harmonic ◽  
Mean Field ◽  
Laser Pulses ◽  
Two Dimensions ◽  
Mott Insulators ◽  
Strongly Correlated ◽  
Two Dimensional ◽  
Mean Field Model

AbstractWith a combination of numerical methods, including quantum Monte Carlo, exact diagonalization, and a simplified dynamical mean-field model, we consider the attosecond charge dynamics of electrons induced by strong-field laser pulses in two-dimensional Mott insulators. The necessity to go beyond single-particle approaches in these strongly correlated systems has made the simulation of two-dimensional extended materials challenging, and we contrast their resulting high-harmonic emission with more widely studied one-dimensional analogues. As well as considering the photo-induced breakdown of the Mott insulating state and magnetic order, we also resolve the time and ultra-high-frequency domains of emission, which are used to characterize both the photo-transition, and the sub-cycle structure of the electron dynamics. This extends simulation capabilities and understanding of the photo-melting of these Mott insulators in two dimensions, at the frontier of attosecond non-equilibrium science of correlated materials.

scholarly journals Two-Dimensional Control of Electron Localization in H2 Dissociation with Elliptically Polarized Few-Cycle Pulses

2019 ◽  
Vol 205 ◽  
pp. 07004
Author(s):  
Sarayoo Kangaparambil ◽  
Václav Hanus ◽  
Seyedreza Larimian ◽  
Xinhua Xie ◽  
Markus Schöffler ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Electron Localization ◽  
Two Dimensional ◽  
Dimensional Control ◽  
Elliptically Polarized

We demonstrate two-dimensional control over the chargelocalization in H2 dissociation using elliptically polarized laser pulses. The influences of the CEP and the laser phase at the instant of ionization are investigated.

Surface Modification Induced by Femtosecond Laser Pulses in Lithium Niobate

2011 ◽  
Vol 142 ◽  
pp. 134-137
Author(s):  
Hong Yun Chen ◽  
Zhen Zhu Wan ◽  
Yan Ling Han
Keyword(s):  
Surface Modification ◽  
Lithium Niobate ◽  
Femtosecond Laser ◽  
Laser Energy ◽  
Laser Pulses ◽  
Sample Surface ◽  
Femtosecond Laser Pulses ◽  
Two Dimensional ◽  
Damage Depth ◽  
Transparent Materials

The interaction between femtoseocnd laser and transparent materials has been studied intensively in recent years. When the femtosecond laser was focused onto the surface of the transparent materials, if the laser fluence applied to the sample exceeds the material’s fluence threshold, ablation occurs. In this paper, we study the surface ablation of lithium niobate by femtosecond laser. We produced a two-dimensional array of voids in the sample surface by varying the number of shots and laser energy, and analyze of the damage depth with the relation to the pulse energy and the number of the pulse. It has important reference on the microfabrication in such materials by femtosecond laser.

scholarly journals Toward two-dimensional photon echo spectroscopy with 200 nm laser pulses

2013 ◽  
Vol 21 (2) ◽  
pp. 2118 ◽  
Author(s):  
Brantley A. West ◽  
Paul G. Giokas ◽  
Brian P. Molesky ◽  
Andrew D. Ross ◽  
Andrew M. Moran
Keyword(s):  
Laser Pulses ◽  
Photon Echo ◽  
Two Dimensional

Two-Dimensional Fourier Transform Spectroscopy of Adenine and Uracil Using Shaped Ultrafast Laser Pulses in the Deep UV

2011 ◽  
Vol 116 (11) ◽  
pp. 2654-2661 ◽  
Author(s):  
Chien-hung Tseng ◽  
Péter Sándor ◽  
Marija Kotur ◽  
Thomas C. Weinacht ◽  
Spiridoula Matsika
Keyword(s):  
Fourier Transform ◽  
Laser Pulses ◽  
Fourier Transform Spectroscopy ◽  
Ultrafast Laser ◽  
Two Dimensional ◽  
Ultrafast Laser Pulses ◽  
Deep Uv
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