Simple setup for hybrid coherent Raman microspectroscopy

Peng, Jiahui; Pestov, Dmitry; Scully, Marlan O.; Sokolov, Alexei V.

doi:10.1002/jrs.2191

Cited by 18 publications

(28 citation statements)

References 25 publications

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“…The efficient methods for FWM elimination have been recently demonstrated with probe pulses shaped in time‐domain and frequency‐domain as in sinc‐square, square‐sinc, exponential–Lorentzian and Gaussian–Gaussian forms. In particular, the experiments on the impulsive CARS have been reported in Refs.…”

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confidence: 99%

Quantitative interpretation of time‐resolved coherent anti‐Stokes Raman spectroscopy with all Gaussian pulses

Ariunbold

Altangerel

2016

J Raman Spectroscopy

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Coherent anti‐Stokes Raman scattering is a powerful nonlinear optical spectroscopic technique primarily used in chemistry and biology for detection and diagnostics by excitation and probing of coherent molecular vibrations. Despite many advantages, there are certain limitations to the application of this technique due to the existence of the non‐resonant four‐wave mixing contamination. This issue is addressed here by offering the time‐resolved exact solutions with all Gaussian input pulses. The paper explains signal enhancement with a suppression of the background at the threshold delay time of the probe and presents a one‐to‐one comparison between the solutions and experimental observations that provides a reconstruction of the pure coherent Raman resonant contribution. These findings add to the deep understanding of coherent Raman spectroscopic experimental data as a hands‐on interpreting tool. Copyright © 2016 John Wiley & Sons, Ltd.

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confidence: 99%

Quantitative interpretation of time‐resolved coherent anti‐Stokes Raman spectroscopy with all Gaussian pulses

Ariunbold

Altangerel

2016

J Raman Spectroscopy

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“…Applications of hybrid fs/ps CARS are not limited to gas phase sensing, molecules of biochemical interest are being studied with such a spectroscopic technique and, among such studies, the Sinc probe seems to provide one of the reference laser pulses . In this regard, considering one of the first works on hybrid fs/ps, Pestov and colleagues report on some spectral measurements taken on samples of sodium dipicolinate (NaDPA), which is a molecule whose Raman spectrum is similar to a marker molecule of bacterial spores.…”

Section: Applications To Experimental Hybrid Femtosecond/picosecond Cmentioning

confidence: 99%

Closed‐form solutions to time model for hybrid fs/ps coherent anti‐Stokes Raman scattering

Marrocco

2017

J Raman Spectroscopy

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Hybrid fs/ps coherent anti‐Stokes Raman scattering is a recent nonlinear optical technique where interaction of a Raman medium with simultaneous femtosecond (fs) pump and Stokes pulses is interrogated by means of a delayed picosecond (ps) probe. The resulting anti‐Stokes signal is usually studied by means of numerical methods built on the conventional time‐dependent model of Raman coherence. Here, we suggest that, in place of numerical tools, the time model is in complete analogy with an earlier frequency‐dependent analytical model and can be equally treated to a great extent despite the complications arising from probe pulses of non‐trivial time shapes. To verify the reliability of this approach, closed‐form solutions to the time model are compared to published experimental results. In addition to fast signal reconstruction, adequate spectral accuracy is demonstrated. Copyright © 2017 John Wiley & Sons, Ltd.

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“…During the time between two consecutive femtosecond laser pulses, no CARS signal will be generated; however, both the Stokes and anti-Stokes spontaneous Raman signal will be emitted. One can minimize the temporal spacing between adjacent excitation pulses either by using a GHz-rate oscillator [18] or by using a series of beam-splitter, or pulse-shaping apparatus to arrange for a multiple pulse sequence [19, 20]. By doing so, all the energy of the probe radiation can be resourcefully utilized for generation of the CARS signal.…”

Section: Introductionmentioning

confidence: 99%

Ex‐CARS: exotic configuration for coherent anti‐Stokes Raman scattering microspectroscopy utilizing two laser sources

Yakovlev

Petrov

Noojin³

et al. 2010

Journal of Biophotonics

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We propose and experimentally demonstrate a new coherent anti-Stokes Raman scattering setting, which relies on a coherent excitation of Raman vibration using a broadband ultrashort laser pulse and signal read-out using a conventional continuous wave laser radiation. Such an exotic arrangement does not require any synchronization of two laser sources and can be used for direct comparison of amplitudes of nonlinear and spontaneous Raman signals. Ex-CARS in time- (top panel) and frequency- (bottom panel) domain.

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Simple setup for hybrid coherent Raman microspectroscopy

Cited by 18 publications

References 25 publications

Quantitative interpretation of time‐resolved coherent anti‐Stokes Raman spectroscopy with all Gaussian pulses

Quantitative interpretation of time‐resolved coherent anti‐Stokes Raman spectroscopy with all Gaussian pulses

Closed‐form solutions to time model for hybrid fs/ps coherent anti‐Stokes Raman scattering

Ex‐CARS: exotic configuration for coherent anti‐Stokes Raman scattering microspectroscopy utilizing two laser sources

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