Interlocked attosecond pulse trains in slightly bi-elliptical high harmonic generation

Eliyahu Bordo; Ofer Kfir; Sergey Zayko; Ofer Neufeld; Avner Fleischer; Claus Ropers; Oren Cohen

doi:10.1088/2515-7647/ab8a5c

Interlocked attosecond pulse trains in slightly bi-elliptical high harmonic generation

Eliyahu Bordo, Ofer Kfir, Sergey Zayko, Ofer Neufeld, Avner Fleischer, Claus Ropers, Oren Cohen

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The ellipticity of high harmonics driven by bi-chromatic (e.g. ω − 2ω) co-propagating fields can be fully tuned by varying the polarization of the pump components. In order to start revealing the underlying mechanism of this control, we explore a relatively simple regime of this scheme that still gives rise to full control over the harmonics ellipticities. In this regime, the pumps are only slightly elliptical and the high harmonic radiation consists of two (different) interlocked attosecond pulse trains (APTs). We formulate a semi-analytic model that maps the high harmonic ellipticity to properties of the APTs harmonic decompositions. Utilizing this model, we reconstruct these APTs variables from measurements of the high harmonics ellipticities. This ellipticity-resolved spectroscopy of interlocked APTs may be useful for ultrafast probing of chiral degrees of freedom.

Original language	English
Article number	034005
Journal	JPhys Photonics
Volume	2
Issue number	3
DOIs	https://doi.org/10.1088/2515-7647/ab8a5c
State	Published - 27 May 2020
Externally published	Yes

Keywords

Attosecond pulse trains
Bi-elliptical high harmonic generation
Ellipticity-resolved spectroscopy

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10.1088/2515-7647/ab8a5c

Cite this

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title = "Interlocked attosecond pulse trains in slightly bi-elliptical high harmonic generation",

abstract = "The ellipticity of high harmonics driven by bi-chromatic (e.g. ω − 2ω) co-propagating fields can be fully tuned by varying the polarization of the pump components. In order to start revealing the underlying mechanism of this control, we explore a relatively simple regime of this scheme that still gives rise to full control over the harmonics ellipticities. In this regime, the pumps are only slightly elliptical and the high harmonic radiation consists of two (different) interlocked attosecond pulse trains (APTs). We formulate a semi-analytic model that maps the high harmonic ellipticity to properties of the APTs harmonic decompositions. Utilizing this model, we reconstruct these APTs variables from measurements of the high harmonics ellipticities. This ellipticity-resolved spectroscopy of interlocked APTs may be useful for ultrafast probing of chiral degrees of freedom.",

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author = "Eliyahu Bordo and Ofer Kfir and Sergey Zayko and Ofer Neufeld and Avner Fleischer and Claus Ropers and Oren Cohen",

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T1 - Interlocked attosecond pulse trains in slightly bi-elliptical high harmonic generation

AU - Bordo, Eliyahu

AU - Kfir, Ofer

AU - Zayko, Sergey

AU - Neufeld, Ofer

AU - Fleischer, Avner

AU - Ropers, Claus

AU - Cohen, Oren

PY - 2020/5/27

Y1 - 2020/5/27

N2 - The ellipticity of high harmonics driven by bi-chromatic (e.g. ω − 2ω) co-propagating fields can be fully tuned by varying the polarization of the pump components. In order to start revealing the underlying mechanism of this control, we explore a relatively simple regime of this scheme that still gives rise to full control over the harmonics ellipticities. In this regime, the pumps are only slightly elliptical and the high harmonic radiation consists of two (different) interlocked attosecond pulse trains (APTs). We formulate a semi-analytic model that maps the high harmonic ellipticity to properties of the APTs harmonic decompositions. Utilizing this model, we reconstruct these APTs variables from measurements of the high harmonics ellipticities. This ellipticity-resolved spectroscopy of interlocked APTs may be useful for ultrafast probing of chiral degrees of freedom.

AB - The ellipticity of high harmonics driven by bi-chromatic (e.g. ω − 2ω) co-propagating fields can be fully tuned by varying the polarization of the pump components. In order to start revealing the underlying mechanism of this control, we explore a relatively simple regime of this scheme that still gives rise to full control over the harmonics ellipticities. In this regime, the pumps are only slightly elliptical and the high harmonic radiation consists of two (different) interlocked attosecond pulse trains (APTs). We formulate a semi-analytic model that maps the high harmonic ellipticity to properties of the APTs harmonic decompositions. Utilizing this model, we reconstruct these APTs variables from measurements of the high harmonics ellipticities. This ellipticity-resolved spectroscopy of interlocked APTs may be useful for ultrafast probing of chiral degrees of freedom.

KW - Attosecond pulse trains

KW - Bi-elliptical high harmonic generation

KW - Ellipticity-resolved spectroscopy

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U2 - 10.1088/2515-7647/ab8a5c

DO - 10.1088/2515-7647/ab8a5c

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JO - JPhys Photonics

JF - JPhys Photonics

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M1 - 034005

ER -

Interlocked attosecond pulse trains in slightly bi-elliptical high harmonic generation

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Keywords

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