Interferometric coherent Raman spectroscopy with incoherent light: Some applications

Schaertel, Stephanie; Albrecht, A. C.; Lau, A.; Kummrow, A.

doi:10.1007/bf01081060

Cited by 34 publications

(29 citation statements)

References 24 publications

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“…Fig. 1(b) provides one of the 40 possible energy-level diagrams for the non-resonant processes [5]. As the diagram illustrates, the nonresonant scattering contains no information about the vibrational energy levels of the molecule.…”

Section: Fig 1(a) Provides the Energy-level Diagram For The Cars Promentioning

confidence: 99%

One-laser interferometric broadband coherent anti-Stokes Raman scattering

2006

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Abstract:We introduce an interferometric technique for eliminating the non-resonant background of broadband coherent anti-Stokes Raman scattering (CARS) microscopy. CARS microscopy has been used for imaging a number of biological samples and processes, but the studies are mostly limited to detecting lipids in biological systems by probing the C-H stretch. Non-resonant background and incoherent noise sources can easily overwhelm less intense signals from other molecular vibrations. In this study, we demonstrate a one-laser broadband interferometric technique that separates the spontaneous Raman scattering-related component of the CARS signal from the non-resonant background using liquid benzonitrile as a model system.Official contribution of the National Institute of Standards and Technology; not subject to copyright in the United States.

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Section: Fig 1(a) Provides the Energy-level Diagram For The Cars Promentioning

confidence: 99%

One-laser interferometric broadband coherent anti-Stokes Raman scattering

2006

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“…Many theoretical references 23,24,25,[31][32][33][34] cover in detail the calculation of noisy light signals. It is of interest to see how I (2) CRS responds to frictional memory.…”

Section: I "2… Crsmentioning

confidence: 99%

“…[23][24][25][31][32][33][34] Now represents the delay between the noisy beams. [23][24][25][31][32][33][34] Again for simplicity let us consider the limit where ӷIm͓z͔ ͑but not necessarily greater than Re͓z͔). As already noted, in this regime the contribution of the residue R3 is only active at very short times, and as a result can be set to zero without seriously affecting the large behavior of the material response and ultimately the I I ͑2͒ CRS () signal.…”

Section: I "2… Crsmentioning

confidence: 99%

Raman scattering from a Brownian oscillator with nonohmic Drude dissipation: Applications to continuous wave, impulsive, and noisy excitation

Ulness

Kirkwood

Albrecht

1998

The Journal of Chemical Physics

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Isotropic and anisotropic Raman scattering from molecular liquids measured by spatially masked optical Kerr effect spectroscopy Structure of the triplet excited state of bromanil from time-resolved resonance Raman spectra and simulation An extension of the Brownian oscillator model in nonlinear optical spectroscopy to include frictional memory is treated. Although we have obtained analytic expressions for this model, their unwieldiness makes the understanding of the effect of nonzero frictional memory difficult. However, by focusing on the behavior of the analytically continued oscillator coordinate correlation function in the complex frequency plane, qualitative insight is obtained. Applications to spontaneous Raman scattering and two time-resolved coherent Raman scattering spectroscopies are briefly explored.

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“…Writing Eqn (19) explicitly to describe a mixture of two components, A and B, each with both a resonant and non-resonant contribution gives…”

Section: General Expression For Icrs Signalmentioning

confidence: 99%

Interferometric coherent Raman spectroscopy: Resonant and non‐resonant contributions

Schaertel

Albrecht

1994

J Raman Spectroscopy

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The theory of the recently discovered interferometric coherent Raman spectroscopy (ICRS) is extended to explicitly include terms resulting from non-resonant contributions to the overall non-linear susceptibility. The derived expression is applicable to both interferometric coherent antiStokes Raman spectroscopy (ICARS) and interfere metric coherent Stokes Raman spectroscopy (ICSRS) and can be applied to both neat solutions and binary mixtures. It is shown that the total description of ICRS must include a resonant term, a non-resonant term and a resonant-non-resonant cross-term, each of which exhibits analytically unique behavior in time-domain ICRS experiments. From the complete expression one can extract relative strengths of the resonant and non-resonant molecular hyperpolarizabilities. Resonant hyperpolarizabilities thus obtained may be used to determine absolute Raman cross-sections, without making absolute measurements. Conversely, for a sample for which the absolute Raman cross-section is independently known, one can determine the value of the non-resonant hyperpolarizability.

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Interferometric coherent Raman spectroscopy with incoherent light: Some applications

Cited by 34 publications

References 24 publications

One-laser interferometric broadband coherent anti-Stokes Raman scattering

One-laser interferometric broadband coherent anti-Stokes Raman scattering

Raman scattering from a Brownian oscillator with nonohmic Drude dissipation: Applications to continuous wave, impulsive, and noisy excitation

Interferometric coherent Raman spectroscopy: Resonant and non‐resonant contributions

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