Tailoring polarisation of attosecond pulses via co-rotating bicircular laser fields

Rajpoot, Rambabu; Holkundkar, Amol R.; Rana, Navdeep; Dixit, Gopal

doi:10.1016/j.physleta.2023.129241

Cited by 3 publications

(1 citation statement)

References 59 publications

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“…HHG plays a critical role in the development of extreme ultraviolet (XUV) and soft x-ray radiation sources [3,4] at an attosecond time scale [5][6][7], offering a wide array potential applications [5,[8][9][10][11][12]. The research in this domain is also directed towards controlling the polarization of emitted harmonics [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], as well as extending the cutoff energy and increasing the intensity of emitted high-order harmonics [28,29].…”

Section: Introductionmentioning

confidence: 99%

Control over the secondary collision of electron in high-order harmonic generation

Rajpoot,

Sharma,

Holkundkar

2024

J. Phys. B: At. Mol. Opt. Phys.

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We investigated the high-order harmonic generation by interacting linearly polarized laser pulses with theatomic target. The temporal evolution of harmonic emission and the underlying mechanisms of rescatteringelectrons are thoroughly investigated through a combination of quantum analysis and classical trajectory simu-lations. The manipulation of the carrier-envelope phase (CEP) provides a promising avenue for controlling elec-tron recollisions, revealing a systematic linear relationship between ionization and recombination times acrossvarying CEP values. Moreover, examining phase properties in emitted harmonics during secondary collisionspresents intriguing modulations, offering a potential experimental approach to verify the presence of secondaryrecollisions.

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Section: Introductionmentioning

confidence: 99%

Control over the secondary collision of electron in high-order harmonic generation

Rajpoot,

Sharma,

Holkundkar

2024

J. Phys. B: At. Mol. Opt. Phys.

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Controlling the generation of elliptically polarized isolated attosecond pulses from mixed gases with a polarization-gating technique

Zhai,

Liu,

et al. 2024

Phys. Rev. A

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Near-circularly polarized isolated attosecond pulse generation from a current-carrying state of Ar atom by two-color cross-linearly polarized laser fields

Gong,

Du,

Wei

et al. 2024

EPL

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We theoretically propose an efficient method to generate near-circularly polarized isolated attosecond (as) pulses (NCP-IAPs) from a current-carrying state of Ar atom driven by two-color cross-linearly-polarized laser fields. We find that the ellipticity of high harmonics can be controlled by adjusting the crossing angle of two linearly polarized lasers and the near-circularly polarized supercontinuum harmonics are obtained when the crossing angle is around 140°. Furthermore, we can produce the NCP-IAPs with the ellipticity up to 0.94 and the shortest one achieves 196 as. This work demonstrates the possibility for generating the NCP-IAPs using a current-carrying state of atoms driven by two-color cross-linearly-polarized laser fields.

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Tailoring polarisation of attosecond pulses via co-rotating bicircular laser fields

Cited by 3 publications

References 59 publications

Control over the secondary collision of electron in high-order harmonic generation

Control over the secondary collision of electron in high-order harmonic generation

Controlling the generation of elliptically polarized isolated attosecond pulses from mixed gases with a polarization-gating technique

Near-circularly polarized isolated attosecond pulse generation from a current-carrying state of Ar atom by two-color cross-linearly polarized laser fields

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