TY - JOUR
T1 - Time-resolved three-color coherent raman scattering applied to polycrystalline and opaque solids
AU - Wen, Xiaoning
AU - Chen, Sheah
AU - Dlott, Dana D.
PY - 1991/4
Y1 - 1991/4
N2 - A new time-resolved coherent Raman technique (three-color picosecond coherent anti-Stokes Raman scattering), which uses a backscattering geometry and three colors obtained from three different lasers, is demonstrated. The advantage of this technique over conventional two-color picosecond coherent anti-Stokes Raman scattering is that it is insensitive to sample morphology. It is used to study time-dependent vibrational dephasing from opaque, polycrystalline solids at low temperature. A quantitative treatment of the limiting apparatus time response, where each pulse has a different duration and where there is arrival-time jitter between the pulses, is derived. New measurements of vibrational dynamics in low-temperature carbon disulfide indicate that polycrystalline samples are more homogeneous, on a microscopic level, than the large single crystals used in previous work. Raman line broadening in a sample of naphthalene in which strain is induced intentionally by grinding and compression is also investigated.
AB - A new time-resolved coherent Raman technique (three-color picosecond coherent anti-Stokes Raman scattering), which uses a backscattering geometry and three colors obtained from three different lasers, is demonstrated. The advantage of this technique over conventional two-color picosecond coherent anti-Stokes Raman scattering is that it is insensitive to sample morphology. It is used to study time-dependent vibrational dephasing from opaque, polycrystalline solids at low temperature. A quantitative treatment of the limiting apparatus time response, where each pulse has a different duration and where there is arrival-time jitter between the pulses, is derived. New measurements of vibrational dynamics in low-temperature carbon disulfide indicate that polycrystalline samples are more homogeneous, on a microscopic level, than the large single crystals used in previous work. Raman line broadening in a sample of naphthalene in which strain is induced intentionally by grinding and compression is also investigated.
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U2 - 10.1364/JOSAB.8.000813
DO - 10.1364/JOSAB.8.000813
M3 - Article
AN - SCOPUS:84975609330
SN - 0740-3224
VL - 8
SP - 813
EP - 819
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 4
ER -