33 citations · 130 across the 13 of their papers we have counts for
13 papers
Direct imaging of enantiomer-specific orientation dynamics in unidirectionally rotating chiral molecules
Kenta Mizuse, Ilia Tutunnikov, Long Xu +7
Selectively controlling the dynamics of molecular enantiomers underlies advances across chemistry, biology, and physics, yet direct imaging of enantiomer-specific motion has so far…
Ionization-induced Long-lasting Orientation of Symmetric-top Molecules
Long Xu, Ilia Tutunnikov, Yehiam Prior +1
We theoretically consider the phenomenon of field-free long-lasting orientation of symmetric-top molecules ionized by two-color laser pulses. The anisotropic ionization produces a…
Echo-enhanced molecular orientation at high temperatures
Ilia Tutunnikov, Long Xu, Yehiam Prior +1
Ultrashort laser pulses are widely used for transient field-free molecular orientation -- a phenomenon important in chemical reaction dynamics, ultrafast molecular imaging, high ha…
Optimal Selective Orientation of Chiral Molecules Using Femtosecond Laser Pulses
Long Xu, Ilia Tutunnikov, Yehiam Prior +1
We present a comprehensive study of enantioselective orientation of chiral molecules excited by a pair of delayed cross-polarized femtosecond laser pulses. We show that by optimizi…
Enantioselective chiral orientation induced by a combination of a long and a short laser pulse
Long Xu
Enantioselective orientation of chiral molecules excited by a shaped picosecond laser pulse and a delayed femtosecond pulse is considered. Using quantum mechanical simulations, we…
Three Dimensional Orientation of Complex Molecules Excited by Two-Color Femtosecond Pulses
Long Xu, Ilia Tutunnikov, Yehiam Prior +1
We study the excitation of asymmetric-top (including chiral) molecules by two-color femtosecond laser pulses. In the cases of non-chiral asymmetric-top molecules excited by an orth…
Long-Lasting Orientation of Symmetric-top Molecules Excited by Two-Color Femtosecond Pulses
Long Xu, Ilia Tutunnikov, Yehiam Prior +1
Impulsive orientation of symmetric-top molecules excited by two-color femtosecond pulses is considered. In addition to the well-known transient orientation appearing immediately af…
Enantioselective Orientation of Chiral Molecules Induced by Terahertz Pulses with Twisted Polarization
Ilia Tutunnikov, Long Xu, Robert W. Field +3
Chirality and chiral molecules are key elements in modern chemical and biochemical industries. Individual addressing, and the eventual separation of chiral enantiomers has been and…
Echoes in Unidirectionally Rotating Molecules
Long Xu, Ilia Tutunnikov, Lianrong Zhou +6
Abstract We report the experimental observation of molecular unidirectional rotation (UDR) echoes, and analyze their origin and behavior both classically and quantum mechanically.…
Long-lasting Molecular Orientation Induced by a Single Terahertz Pulse
Long Xu, Ilia Tutunnikov, Erez Gershnabel +2
Control of molecular rotations by laser fields is an active area of research focusing on the alignment/orientation of otherwise isotropic molecular samples. Oriented molecules are…
Understanding tunneling ionization of atoms in laser fields with the essence of multiphoton absorption
Long Xu, Libin Fu
The elaborate energy and momentum spectra of ionized electrons from atoms in laser fields suggest that the ionization dynamics described by tunneling theory should be modified. Alt…
Frequency-resolved photon-electronic spectroscopy for excited state population detection
Long Xu, Hui Dong, Libin Fu
Atomic excitation to excited states in strong laser field is the key to high-order harmonic generation below ionization threshold, yet remains unclear mainly due to the lack of pro…
Multi-Channel Interference in Resonance-Like Enhancement of High-Order Above-Threshold Ionization
Long Xu, Libin Fu
The intensity-dependent resonance-like enhancement phenomenon in high-order above-threshold ionization spectrum is a typical quantum effect for atoms or molecules in the intense la…