Open AccessModulation instability induced by cross-phase modulation of transient stimulated Raman scattering and self-phase modulation in calcite
Author(s) -
Shah Faisal B. Mazhar,
R. R. Alfano
Publication year - 2020
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.395101
Subject(s) - phase (matter) , analytical chemistry (journal) , physics , materials science , chemistry , quantum mechanics , chromatography
Pairs of sidebands about the transient stimulated Raman scattering (SRS) 1086 c m -1 vibration mode peak are observed for calcite under 517 nm 390 fs pulse excitation. These pairs of side frequency lobes arise from modulation instability (MI) from the interaction of cross-phase modulation (XPM) from self-phase modulation (SPM) and SRS. The pairs of secondary frequencies are attributed to the daughter 1086 c m -1 decay product modes from the multiphonon of 3, 4, and 5 decays. The main sideband peak from 1086 c m -1 phonon at 546 c m -1 suggests the operation of the Orbach effect.