Open AccessUltra broadband UV generation by stimulated Raman scattering of two-color KrF laser in deuterium confined in a hollow fiber
Author(s) -
Eiichi Takahashi,
Susumu Katō,
Yuji Matsumoto,
Leonid L Losev
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.002535
Subject(s) - raman spectroscopy , materials science , raman scattering , optics , coherent anti stokes raman spectroscopy , laser , ultraviolet , deuterium , raman cooling , optoelectronics , atomic physics , physics
Broad Raman-multi-frequency spectra were generated from the resonant two-color excitation of the deuterium molecule rotational Raman transition (J=0?2), using ultraviolet bi-harmonic lasers with a quartz hollow fiber. Fifty pure rotational Raman spectral lines (34 lines that have intensity within 10% of the strongest spectral line) from 230 to 290 nm were generated at a gas pressure of 30 kPa. Furthermore, vibrational-rotational Raman spectral lines of almost 300 lines from 220 to 600 nm were also generated by increasing the gas pressure to 60 kPa.