Linked attosecond phase interferometry for molecular frame measurements

Bertrand, J. B.; Wörner, Hans Jakob; Salières, P.; Villeneuve, D. M.; Corkum, P. B.

doi:10.1038/nphys2540

Cited by 58 publications

(48 citation statements)

References 35 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a result, interferometry with high harmonics found important applications in e.g. Molecular Orbital Tomography [13], in wavefront reconstruction [14] and electric field characterization [15] of high harmonics. Recently, interferometry with high harmonics provided added value to coherent diffractive imaging (CDI) [16,17] using the full high harmonics bandwidth and photon flux.…”

Section: Introductionmentioning

confidence: 99%

Spatially resolved Fourier transform spectroscopy in the extreme ultraviolet

Jansen

Rudolf

Freisem

et al. 2016

Optica

View full text Add to dashboard Cite

Coherent extreme ultraviolet (XUV) radiation produced by table-top high-harmonic generation (HHG) sources provides a wealth of possibilities in research areas ranging from attosecond physics to high resolution coherent diffractive imaging. However, it remains challenging to fully exploit the coherence of such sources for interferometry and Fourier transform spectroscopy (FTS). This is due to the need for a measurement system that is stable at the level of a wavelength fraction, yet allowing a controlled scanning of time delays. Here we demonstrate XUV interferometry and FTS in the 17-55 nm wavelength range using an ultrastable common-path interferometer suitable for high-intensity laser pulses that drive the HHG process. This approach enables the generation of fully coherent XUV pulse pairs with sub-attosecond timing variation, tunable time delay and a clean Gaussian spatial mode profile. We demonstrate the capabilities of our XUV interferometer by performing spatially resolved FTS on a thin film composed of titanium and silicon nitride.A well-known feature of high-harmonic generation (HHG) is broadband spectra in the XUV and soft X-ray regions [1][2][3]. This radiation is typically emitted in a train of attosecond pulses with excellent spatial and temporal coherence, as shown in various interferometric and spectroscopic measurements [4][5][6][7][8][9][10][11][12]. As a result, interferometry with high harmonics found important applications in e.g. Molecular Orbital Tomography [13], in wavefront reconstruction [14] and electric field characterization [15] of high harmonics. Recently, interferometry with high harmonics provided added value to coherent diffractive imaging (CDI) [16,17] using the full high harmonics bandwidth and photon flux. However, in the extreme ultraviolet (XUV) spectral range, interferometry and Fourier transform spectroscopy (FTS) are challenging due to the high stability requirements of the interferometer itself. Two main types of HHG interferometers have been devised. In one scheme, the near-infrared fundamental driving pulse is split into two phase-locked pulses with an adjustable time delay, and this pulse pair is subsequently used for HHG [5,[7][8][9]. Although this method has been successfully used it is typically limited by the stability of the optical interferometer. The other scheme is based on wavefront division, whereby one HHG beam is divided into two phase-locked sources by a piezo-mounted split mirror. This configuration allows more stable interferometry [10,[18][19][20][21], but results in two beams with different spatial profiles and strong diffraction effects due to the hard edge of the split mirror. Wavefront division interferometry is also less flexible when one would like to change the intensity ratio between the two beams.In this letter we present XUV interferometry using a novel ultrastable common-path interferome-1 arXiv:1607.02386v2 [physics.optics]

show abstract

Section: Introductionmentioning

confidence: 99%

Spatially resolved Fourier transform spectroscopy in the extreme ultraviolet

Jansen

Rudolf

Freisem

et al. 2016

Optica

View full text Add to dashboard Cite

show abstract

“…It provides the phase as a function of alignment angle for each harmonic order and is thus complementary to the RABBITT technique. The combination of our technique with either RABBITT or mixed gas experiments would provide the high-harmonic phase as a function of photon energy and alignment angle [17]. We apply the method to aligned N 2 molecules and compare them with accurate quantum scattering calculations.…”

mentioning

confidence: 99%

All-Optical Measurement of High-Harmonic Amplitudes and Phases in Aligned Molecules

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…[57][58][59] and demonstrated experimentally in Ref. [60]. Recently the feasibility of x-ray diffraction imaging of laser-aligned gas-phase molecules was demonstrated [55].…”

Section: Processmentioning

confidence: 99%

Imaging instantaneous electron flow with ultrafast resonant x-ray scattering

Popova-Gorelova

Santra

2015

Phys. Rev. B

View full text Add to dashboard Cite

We propose a way to image dynamical properties of nonstationary electron systems using ultrafast resonant x-ray scattering. Employing a rigorous theoretical analysis within the framework of quantum electrodynamics, we demonstrate that a single scattering pattern from a nonstationary electron system encodes the instantaneous interatomic electron current in addition to the structural information usually obtained by resonant x-ray scattering from stationary systems. Thus, inelastic contributions that are indistinguishable from elastic processes induced by a broadband probe pulse, instead of being a concern, serve as an advantage for time-resolved resonant x-ray scattering. Thereby, we propose an approach combining elastic and inelastic resonant x-ray scattering for imaging dynamics of nonstationary electron systems in both real space and real time. In order to illustrate its power, we show how it can be applied to image the electron-hole current in an ionized diatomic molecule.

show abstract

Linked attosecond phase interferometry for molecular frame measurements

Cited by 58 publications

References 35 publications

Spatially resolved Fourier transform spectroscopy in the extreme ultraviolet

Spatially resolved Fourier transform spectroscopy in the extreme ultraviolet

All-Optical Measurement of High-Harmonic Amplitudes and Phases in Aligned Molecules

Imaging instantaneous electron flow with ultrafast resonant x-ray scattering

Contact Info

Product

Resources

About