Improving Ramsey spectroscopy in the extreme-ultraviolet region with a random-sampling approach

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.041402· OSTI ID:21544545

Eramo, R; Bellini, M ^[1]; Corsi, C; Liontos, I ^[2]; Cavalieri, S ^[2]

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1. Istituto Nazionale di Ottica (INO-CNR), Largo E. Fermi 6, I-50125 Florence (Italy)
2. European Laboratory for Non-linear Spectroscopy (LENS), I-50019 Sesto Fiorentino, Florence (Italy)

Ramsey-like techniques, based on the coherent excitation of a sample by delayed and phase-correlated pulses, are promising tools for high-precision spectroscopic tests of QED in the extreme-ultraviolet (xuv) spectral region, but currently suffer experimental limitations related to long acquisition times and critical stability issues. Here we propose a random subsampling approach to Ramsey spectroscopy that, by allowing experimentalists to reach a given spectral resolution goal in a fraction of the usual acquisition time, leads to substantial improvements in high-resolution spectroscopy and may open the way to a widespread application of Ramsey-like techniques to precision measurements in the xuv spectral region.

• OSTI ID: 21544545
• Journal Information: Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.041402; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
ENERGY RESOLUTION
EXCITATION
EXTREME ULTRAVIOLET RADIATION
PULSES
QUANTUM ELECTRODYNAMICS
RANDOMNESS
SAMPLING
SPECTROSCOPY
ELECTRODYNAMICS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
FIELD THEORIES
QUANTUM FIELD THEORY
RADIATIONS
RESOLUTION
ULTRAVIOLET RADIATION