Impulsive Stimulated Raman Effect.
نویسندگان
چکیده
منابع مشابه
Manipulating Impulsive Stimulated Raman Spectroscopy with a Chirped Probe Pulse.
Photophysical and photochemical processes are often dominated by molecular vibrations in various electronic states. Dissecting the corresponding, often overlapping, spectroscopic signals from different electronic states is a challenge hampering their interpretation. Here we address impulsive stimulated Raman spectroscopy (ISRS), a powerful technique able to coherently stimulate and record Raman...
متن کاملFemtosecond multiple - pulse impulsive stimulated Raman scattering spectroscopy
Optical control of elementary molecular motion through impulsive stimulated Raman scattering is enhanced by means of timed sequences of femtosecond pulses that are produced by pulse-shaping techniques. In particular, terahertz-rate trains of femtosecond pulses are used for repetitive impulsive excitation of individual phonon modes in an a-perylene molecular crystal. When the pulse repetition ra...
متن کاملFilament-driven impulsive Raman spectroscopy.
Vibrational Raman spectroscopy is performed in the gas phase using a femtosecond laser pulse undergoing filamentation as an impulsive excitation source. The molecular coherence induced by the filamentary pulse is subsequently probed using a narrowband, sub-picosecond laser pulse to produce Raman spectra of gas phase species in a few tens of milliseconds (~10 laser shots). Pulse shortening with ...
متن کاملValence excitation of NO2 by impulsive stimulated x-ray Raman scattering
Impulsive x-ray Raman excitations are the components of multidimensional x-ray spectroscopies that have been proposed. However the question of the optimum laser parameters to use for these impulsive excitations is still open. The multiconfiguration time-dependent Hartree-Fock (MCTDHF) method includes a description of the wave function that makes no assumptions about the degree of excitation, co...
متن کامل"Excitation of multiple phonon modes in copper metaborate CuB2O4 via non-resonant impulsive stimulated Raman scattering"
Copper metaborate CuB2O4 is a material with a unique crystallographic structure, space group 42m (Z=12), in which magnetic Cu ions occupy two types of nonequivalent positions 4b and 8d. Below the antiferromagnetic ordering at TN = 21 K this material demonstrates a very complicated magnetic phase diagram with commensurate and incommensurate phases [1]. This material also demonstrates very intere...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Hyomen Kagaku
سال: 1998
ISSN: 0388-5321,1881-4743
DOI: 10.1380/jsssj.19.78