Electron spectra from multiphoton ionization of xenon at 1064, 532, and 355 nm

Kruit, P.; Kimman, J.; Müller, H. G.; Wiel, M.J. van der

doi:10.1103/physreva.28.248

Cited by 390 publications

(79 citation statements)

References 16 publications

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“…Extensive investigations have been performed both theoretically [11][12][13][14][15][16][17][18] and experimentally [7,12,14,[19][20][21][22][23][24][25][26][27][28][29][30][31] for a comprehensive understanding of the laser-induced atomic ATI for laser fields with wavelengths from visible lights (4×10 2 nm) to infrared radiations (1×10 5 nm). With the recent development of intense and ultrashort-wavelength free-electron lasers [32][33][34], the study of multiphoton * zyzhou@ku.edu † sichu@ku.edu processes in the high-frequency and strong-field regime becomes increasingly important [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Precision calculation of above-threshold multiphoton ionization in intense short-wavelength laser fields: The momentum-space approach and time-dependent generalized pseudospectral method

Zhou

Chu

2011

Phys. Rev. A

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We present an approach in momentum (P) space for the accurate study of multiphoton and above-threshold ionization (ATI) dynamics of atomic systems driven by intense laser fields. In this approach, the electron wave function is calculated by solving the P-space time-dependent Schrödinger equation (TDSE) in a finite P-space volume under a simple zero asymptotic boundary condition. The P-space TDSE is propagated accurately and efficiently by means of the time-dependent generalized pseudospectral method with optimal momentum grid discretization and a split-operator time propagator in the energy representation. The differential ionization probabilities are calculated directly from the continuum-state wave function obtained by projecting the total electron wave function onto the continuum-state subspace using the projection operator constructed by the continuum eigenfunctions of the unperturbed Hamiltonian. As a case study, we apply this approach to the nonperturbative study of the multiphoton and ATI dynamics of a hydrogen atom exposed to intense shortwavelength laser fields. High-resolution photoelectron energy-angular distribution and ATI spectra have been obtained. We find that with the increase of the laser intensity, the photoelectron energy-angular distribution changes from circular to dumbbell shaped and is squeezed along the laser field direction. We also explore the change of the maximum photoelectron energy with laser intensity and strong-field atomic stabilization phenomenon in detail.

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Section: Introductionmentioning

confidence: 99%

Precision calculation of above-threshold multiphoton ionization in intense short-wavelength laser fields: The momentum-space approach and time-dependent generalized pseudospectral method

Zhou

Chu

2011

Phys. Rev. A

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“…With tial fraction of the total electronic energy. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] this physical picture, selectivity in the populaThe coherent motion envisaged has a counterpart tion of excited ionic states is expected on the in nuclear matter known as the giant dipole,21 albasis of photoelectron studies. Lw H Puaae, K Buer.M.…”

Section: S-thementioning

confidence: 99%

Equipment for Subpicosecond Extreme Ultraviolet Facility.

Rhodes¹,

Boyer²,

Luk³

1986

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“…The presence of the IR field ultimately leads to the well-known phenomenon of above-threshold ionization (ATI) [10][11][12][13][14], resulting in sidebands in the photoelectron spectrum associated with the absorption or stimulated emission of one or several IR photons [15][16][17]. Many studies, both experimental and theoretical, of the sideband patterns in XUV + IR ionization have been performed (for example [18][19][20][21][22][23] sidebands [23][24][25][26][27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Above-threshold ionization in neon produced by combining optical and bichromatic XUV femtosecond laser pulses

2017

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We consider the ionization of neon induced by a femtosecond laser pulse composed of overlapping, linearly polarized bichromatic extreme ultraviolet and infrared fields. In particular, we study the effects of the infrared light on a two-pathway ionization scheme for which Ne 2s 2 2p 5 3s 1 P is used as intermediate state. Using time-dependent calculations, supported by a theoretical approach based on the strong-field approximation, we analyze the ionization probability and the photoelectron angular distributions associated with the different sidebands of the ionization spectrum. Complex oscillations of the angular distribution anisotropy parameters as a function of the infrared light intensity are revealed. Finally, we demonstrate that coherent control of the asymmetry is achievable by tuning the infrared frequency to a nearby electronic transition.

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Electron spectra from multiphoton ionization of xenon at 1064, 532, and 355 nm

Cited by 390 publications

References 16 publications

Precision calculation of above-threshold multiphoton ionization in intense short-wavelength laser fields: The momentum-space approach and time-dependent generalized pseudospectral method

Precision calculation of above-threshold multiphoton ionization in intense short-wavelength laser fields: The momentum-space approach and time-dependent generalized pseudospectral method

Equipment for Subpicosecond Extreme Ultraviolet Facility.

Above-threshold ionization in neon produced by combining optical and bichromatic XUV femtosecond laser pulses

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