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Broadband high-resolution X-ray frequency combs.
- Source :
-
Nature Photonics . Jul2014, Vol. 8 Issue 7, p520-523. 4p. 3 Graphs. - Publication Year :
- 2014
-
Abstract
- Optical frequency combs have had a remarkable impact on precision spectroscopy. Enabling this technology in the X-ray domain is expected to result in wide-ranging applications, such as stringent tests of astrophysical models and quantum electrodynamics, a more sensitive search for the variability of fundamental constants, and precision studies of nuclear structure. Ultraprecise X-ray atomic clocks may also be envisaged. In this work, an X-ray pulse-shaping method is proposed to generate a comb in the absorption spectrum of an ultrashort high-frequency pulse. The method employs an optical-frequency-comb laser, manipulating the system's dipole response to imprint a comb on an excited transition with a high photon energy. The described scheme provides higher comb frequencies and requires lower optical-comb peak intensities than currently explored methods, preserves the overall width of the optical comb, and may be implemented using currently available X-ray technology. [ABSTRACT FROM AUTHOR]
- Subjects :
- *X-rays
*LASERS
*ABSORPTION spectra
*PHOTONS
*QUANTUM electrodynamics
*ATOMIC clocks
Subjects
Details
- Language :
- English
- ISSN :
- 17494885
- Volume :
- 8
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Nature Photonics
- Publication Type :
- Academic Journal
- Accession number :
- 96796226
- Full Text :
- https://doi.org/10.1038/nphoton.2014.113