scholarly journals Communication: Comment on the effective temporal and spectral resolution of impulsive stimulated Raman signals

2011 ◽  
Vol 134 (16) ◽  
pp. 161101 ◽  
Author(s):  
Shaul Mukamel ◽  
Jason D. Biggs
Keyword(s):  
Spectral Resolution ◽  
Communication Comment ◽  
Stimulated Raman

scholarly journals Fingerprint‐to‐CH stretch continuously tunable high spectral resolution stimulated Raman scattering microscope

2019 ◽  
Vol 12 (9) ◽  
Author(s):  
Sergey P. Laptenok ◽  
Vijayakumar P. Rajamanickam ◽  
Luca Genchi ◽  
Tual Monfort ◽  
Yeonwoo Lee ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Spectral Resolution ◽  
Stimulated Raman Scattering ◽  
High Spectral Resolution ◽  
Stimulated Raman

scholarly journals Improved spectral resolution of the femtosecond stimulated Raman spectroscopy achieved by the use of the 2nd-order diffraction method

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dong-gu Kang ◽  
Kyung Chul Woo ◽  
Do Hyung Kang ◽  
Chanho Park ◽  
Sang Kyu Kim
Keyword(s):  
Raman Spectroscopy ◽  
Spectral Resolution ◽  
Diffraction Method ◽  
High Spectral Resolution ◽  
Double Pass ◽  
Time Resolved ◽  
Order Diffraction ◽  
Pump Laser Pulse ◽  
Raman Pump ◽  
Stimulated Raman

AbstractProlongation of the picosecond Raman pump laser pulse in the femtosecond stimulated Raman spectroscopy (FSRS) setup is essential for achieving the high spectral resolution of the time-resolved vibrational Raman spectra. In this work, the 2nd-order diffraction has been firstly employed in the double-pass grating filter technique for realizing the FSRS setup with the sub-5 cm−1 spectral resolution. It has been experimentally demonstrated that our new FSRS setup gives rise to a highly-resolved Raman spectrum of the excited trans-stilbene, which is much improved from those reported in the literatures. The spectral resolution of the present FSRS system has been estimated to be the lowest value ever reported to date, giving Δν = 2.5 cm−1.

scholarly journals Analysis of Pulses Bandwidth and Spectral Resolution in Femtosecond Stimulated Raman Scattering Microscopy

2021 ◽  
Vol 11 (9) ◽  
pp. 3903
Author(s):  
Luigi Sirleto ◽  
Rajeev Ranjan ◽  
Maria Antonietta Ferrara
Keyword(s):  
Raman Scattering ◽  
Spectral Resolution ◽  
Stimulated Raman Scattering ◽  
Multicomponent System ◽  
Individual Species ◽  
Label Free ◽  
Coherent Raman ◽  
The Individual ◽  
Open Question ◽  
Stimulated Raman

In the last decade, stimulated Raman scattering (SRS) imaging has been demonstrated to be a powerful method for label-free, non-invasive mapping of individual species distributions in a multicomponent system. This is due to the chemical selectivity of SRS techniques and the linear dependence of SRS signals on the individual species concentrations. However, even if significant efforts have been made to improve spectroscopic coherent Raman imaging technology, what is the best way to resolve overlapped Raman bands in biological samples is still an open question. In this framework, spectral resolution, i.e., the ability to distinguish closely lying resonances, is the crucial point. Therefore, in this paper, the interplay among pump and Stokes bandwidths, the degree of chirp-matching and the spectral resolution of femtosecond stimulated Raman scattering microscopy are experimentally investigated and the separation of protein and lipid bands in the C-H region, which are of great interest in biochemical studies, is, in principle, demonstrated.

scholarly journals Femtosecond infrared pump – stimulated Raman probe spectroscopy: the method and its first application to study vibrational relaxation pathway in liquid water

2019 ◽  
Vol 205 ◽  
pp. 09026
Author(s):  
Marcin Pastorczak ◽  
Michal Nejbauer ◽  
Tomasz Kardas ◽  
Czesiaw Radzewicz
Keyword(s):  
Spectral Resolution ◽  
Time Resolution ◽  
Liquid Water ◽  
Vibrational Relaxation ◽  
Vibrational Excitation ◽  
Probe Spectroscopy ◽  
Raman Probe ◽  
Better Than ◽  
Stimulated Raman

We apply femtosecond-infrared pump- stimulated Raman probe spectroscopy (fs-IR-SRS) which provides sub-100 fs time resolution, spectral resolution better than 10 cm-1 and the 100 cm-1 to 4000 cm-1 probe bandwidth to study vibrational relaxation pathway after vibrational excitation of OH stretching mode in HDO in the system composed of 30 % of HDO in D2O.

scholarly journals A Spectral Resolution study in Femtosecond Stimulated Raman Scattering Microscopy

2021 ◽  
Vol 255 ◽  
pp. 11009
Author(s):  
Rajeev Ranjan ◽  
Maria Antonietta Ferrara ◽  
Luigi Sirleto
Keyword(s):  
Raman Scattering ◽  
Spectral Resolution ◽  
Biomedical Applications ◽  
Stimulated Raman Scattering ◽  
Chemical Species ◽  
Individual Species ◽  
Label Free ◽  
Biochemical Research ◽  
Chemical Selectivity ◽  
Stimulated Raman

The simultaneous mapping and the specificity of different chemical species are desirable in several biological and biomedical applications. The stimulated Raman Scattering technique is a proven and well-established label-free method to map the distributions of individual species in a multi-component-based system due to the linear dependence of signals on concentration and its chemical selectivity. In this framework, spectral resolution, i.e., the ability to distinguish closely lying resonances, plays a fundamental role. Here in this work, the cross-correlation of Ti:Sa & OPO femtosecond laser beams in a stimulated Raman scattering microscope is measured. The separation between protein and lipid bands in the C-H region is important for biochemical research and is successfully classified.

Axial Observation of X-Ray Spectra from a Beam-Foil Source

1988 ◽  
Vol 102 ◽  
pp. 339-342
Author(s):  
J.M. Laming ◽  
J.D. Silver ◽  
R. Barnsley ◽  
J. Dunn ◽  
K.D. Evans ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
Heavy Ion ◽  
Ion Beams ◽  
Beam Axis ◽  
Doppler Broadening ◽  
X Ray ◽  
Beam Foil

AbstractNew observations of x-ray spectra from foil-excited heavy ion beams are reported. By observing the target in a direction along the beam axis, an improvement in spectral resolution, δλ/λ, by about a factor of two is achieved, due to the reduced Doppler broadening in this geometry.

A POWERFUL TOOL TO STUDY COLLISIONAL PHENOMENA AND FOR COMBUSTION APPLICATIONS : THE HIGH RESOLUTION STIMULATED RAMAN SPECTROSCOPY

1987 ◽  
Vol 48 (C7) ◽  
pp. C7-761-C7-762
Author(s):  
B. LAVOREL ◽  
G. MILLOT ◽  
R. SAINT-LOUP ◽  
M. L. GONZE ◽  
J. SANTOS ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Resolution ◽  
Stimulated Raman
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