An ultrastable Michelson interferometer for high-resolution spectroscopy in the XUV

Authors :: C. Corsi
Roberto Eramo
Stefano Cavalieri
G Venturi
I. Liontos
Marco Bellini
Source :: Optics express 23 (2015): 4106–4113. doi:10.1364/OE.23.004106, info:cnr-pdr/source/autori:Corsi C.; Liontos I.; Cavalieri S.; Bellini M.; Venturi G.; Eramo R./titolo:An ultrastable Michelson interferometer for high-resolution spectroscopy in the XUV/doi:10.1364%2FOE.23.004106/rivista:Optics express/anno:2015/pagina_da:4106/pagina_a:4113/intervallo_pagine:4106–4113/volume:23
Publication Year :: 2015
Abstract: We developed an ultra-stable and accurately-controllable Michelson interferometer to be used in a deeply unbalanced arm configuration for split-pulse XUV Ramsey-type spectroscopy with high-order laser harmonics. The implemented active and passive stabilization systems allow one to reach instabilities in the nanometer range over meters of relative optical path differences. Producing precisely delayed pairs of pump pulses will generate XUV harmonic pulses that may significantly improve the achievable spectral resolution and the precision of absolute frequency measurements in the XUV.

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