Laser-induced electron diffraction: a new tool for probing ultrafast molecular dynamics

Zuo, Tao; Bandrauk, André D.; Corkum, P. B.

doi:10.1016/0009-2614(96)00786-5

Cited by 357 publications

(281 citation statements)

References 14 publications

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“…Thus, the multicenter nature of molecules can lead to interference effects in HG [16,17]. Similarly, diffraction is predicted to occur in the above-threshold ionization (ATI) [18,19] spectra. By varying the orientation of the molecule, a certain harmonic range can be maximized or minimized [16,17,20,21,22].…”

Section: Introductionmentioning

confidence: 99%

Strong-field approximation for harmonic generation in diatomic molecules

2006

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The generation of high-order harmonics in diatomic molecules is investigated within the framework of the strong-field approximation. We show that the conventional saddle-point approximation is not suitable for large internuclear distances. An adapted saddle-point method that takes into account the molecular structure is presented. We analyze the predictions for the harmonic-generation spectra in both the velocity and the length gauge. At large internuclear separations, we compare the resulting cutoffs with the predictions of the simple-man's model. Good agreement is obtained only by using the adapted saddle-point method combined with the velocity gauge.

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Section: Introductionmentioning

confidence: 99%

Strong-field approximation for harmonic generation in diatomic molecules

2006

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“…should be suppressed at every other p s , whenever the total number of absorbed photons s + n 0 is odd [24]. The PMDs of the stretched H + 2 molecule in Figure 3 also exhibit this trend, although their ground-state is non-spherical.…”

Section: A Linear Polarizationmentioning

confidence: 73%

“…Note that such interference minima are different from the two-center interference minima discussed in Refs. [24,25], where H + 2 was stretched extremely long (R ≥ 20) as to satisfy the de Broglie wavelength condition λ e ≤ R.…”

Section: A Linear Polarizationmentioning

confidence: 99%

Photoelectron momentum distributions of the hydrogen molecular ion driven by multicycle near-infrared laser pulses

Murakami

Chu

2016

Phys. Rev. A

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The photoelectron momentum distributions (PMDs) of the hydrogen molecular ion (2014)]. We will discuss the difference between the molecular (diatomic) and the atomic PMDs, and the effect of molecular potential to the photoelectron energy. In particular, we demonstrate that the above-threshold ionization spectra of H + 2 could upshift their energy when driven by a linearly polarized laser field in parallel to the molecular axis.

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“…Conceptually this is analogous to the external electron beam used in conventional electron diffraction (CED) studies. Dubbed laser-induced electron diffraction (LIED) 34,35 , the method relies on extracting elastic differential cross-sections (DCS) from the two-dimensional (2D) photoelectron angular distributions [27][28][29][30][31] . Recently, picometre and femtosecond resolutions were demonstrated for N 2 and O 2 bond distance determination by fitting the extracted angledependent elastic DCS 36 .…”

mentioning

confidence: 99%

Diffraction using laser-driven broadband electron wave packets

Blaga

Zhang

et al. 2014

Nat Commun

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Directly monitoring atomic motion during a molecular transformation with atomic-scale spatio-temporal resolution is a frontier of ultrafast optical science and physical chemistry. Here we provide the foundation for a new imaging method, fixed-angle broadband laser-induced electron scattering, based on structural retrieval by direct one-dimensional Fourier transform of a photoelectron energy distribution observed along the polarization direction of an intense ultrafast light pulse. The approach exploits the scattering of a broadband wave packet created by strong-field tunnel ionization to self-interrogate the molecular structure with picometre spatial resolution and bond specificity. With its inherent femtosecond resolution, combining our technique with molecular alignment can, in principle, provide the basis for time-resolved tomography for multi-dimensional transient structural determination.

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Laser-induced electron diffraction: a new tool for probing ultrafast molecular dynamics

Cited by 357 publications

References 14 publications

Strong-field approximation for harmonic generation in diatomic molecules

Strong-field approximation for harmonic generation in diatomic molecules

Photoelectron momentum distributions of the hydrogen molecular ion driven by multicycle near-infrared laser pulses

Diffraction using laser-driven broadband electron wave packets

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