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Issue 20, 2010
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Wave packet interferometry with attosecond precision and picometric structure

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Abstract

Wave packet (WP) interferometry is applied to the vibrational WPs of the iodine molecule. Interference fringes of quantum waves weave highly regular space-time images called “quantum carpets.” The structure of the carpet has picometre and femtosecond resolutions, and changes drastically depending on the amplitudes and phases of the vibrational eigenstates composing the WP. In this review, we focus on the situation where quantum carpets are created by two counter-propagating nuclear vibrational WPs. Such WPs can be prepared with either a single or double femtosecond (fs) laser pulse. In the single pulse scheme, the relevant situation appears around the half revival time. Similar situations can be generated with a pair of fs laser pulses whose relative phase is stabilized on the attosecond time scale. In the latter case we can design the quantum carpet by controlling the timing between the phase-locked pulses. We demonstrate this carpet design and visualize the designed carpets by the fs pumpprobe measurements, tuning the probe wavelength to resolve the WP density-distribution along the internuclear axis with ∼3 pm spatial resolution and ∼100 fs temporal resolution.

Graphical abstract: Wave packet interferometry with attosecond precision and picometric structure

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Article information


Submitted
05 Jan 2010
Accepted
04 Mar 2010
First published
19 Apr 2010

Phys. Chem. Chem. Phys., 2010,12, 5189-5198
Article type
Perspective

Wave packet interferometry with attosecond precision and picometric structure

H. Katsuki, H. Chiba, C. Meier, B. Girard and K. Ohmori, Phys. Chem. Chem. Phys., 2010, 12, 5189
DOI: 10.1039/B927518E

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