Raman Spectroscopy—A Prospective Tool in the Life Sciences

Petry, R.; Schmitt, Michael; Popp, Jürgen

doi:10.1002/cphc.200390004

Cited by 325 publications

(205 citation statements)

References 87 publications

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“…This enables the ''visualisation'' of the vibrational frequencies within the molecule of interest and effective suppression of unwanted background signal. Intense fluorescence emission associated with complex samples usually occurs in the same spectral region as the resonance Raman spectra and irretrievably swamps weaker Raman signals (Petry et al 2003). The fluorescence problem can also be circumvented by probing well below the fluorescence emission in the ultraviolet (UV) (Halttunen et al 2001), an approach that offers also the benefit of a higher signal strength compared to NIR excitation.…”

Section: Principles Of Infrared Raman and Uv Microspectroscopy With mentioning

confidence: 99%

Microspectroscopy as applied to the study of wood molecular structure

Fackler

Thygesen

2012

Wood Sci Technol

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Microspectroscopy gives access to spatially resolved information on the molecular structure and chemical composition of a material. For a highly heterogeneous and anisotropic material like wood, such information is essential when assessing structure/property relationships such as moisture-induced dimensional changes, decay resistance or mechanical properties. It is, however, important to choose the right technique for the purpose at hand and to apply it in a suitable way if any new insights are to be gained. This review presents and compares three different microspectroscopic techniques: infrared, Raman and ultraviolet. Issues such as sample preparation, spatial resolution, data acquisition and extraction of knowledge from the spectral data are discussed. Additionally, an overview of applications in wood science is given for each method. Lastly, current trends and challenges within microspectroscopy of wood are discussed.

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Section: Principles Of Infrared Raman and Uv Microspectroscopy With mentioning

confidence: 99%

Microspectroscopy as applied to the study of wood molecular structure

Fackler

Thygesen

2012

Wood Sci Technol

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“…Raman spectroscopy belongs to molecular vibration spectrum likes as infrared spectroscopy, and can reflect the characteristics of molecular structure. But Raman signal is very weak; the intensity of the incident light intensity is only about 10 -10 [26].…”

Section: Surface-enhanced Raman Scattering (Sers)mentioning

confidence: 99%

Application of Graphene in Surface-Enhanced Raman Spectroscopy

Chang¹,

Xing²,

Zhang³

2017

Nano BioMed ENG

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Since the two-dimension structural graphene was discovered in 2004, the researches involved in graphene have and will continue to develop actively because of the excellent properties of graphene. Raman spectroscopy is a quick and precise characterization technique for investigating material properties in material science. Meanwhile, surface-enhanced Raman scattering (SERS) consumingly impacts on surface science owing to its extremely high sensitivity at single molecule level. However, SERS has not been an expected powerful analytical technique due to a variety of technical limitations. Here we briefly review some critical progresses in the development of surface-enhanced Raman scattering (SERS) and various applications of graphene in SERS in recent years.

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“…Kim et al [29] published high-harmonic spectra that they had produced in the traditional strong field process by making use of field enhancing plasmonics in metallic nano-structures. While the near limitless spatial shaping of optical near fields in plasmonics [30] has led to a fantastic range of fundamental scientific as well as real world applications [31,32], its combination with classical strong field effects is a very recent development [33,34]. A conceptual sketch of the experiment that led to the publication in [29] is shown in Fig.…”

Section: Theory Of Plasmon-assisted Hhgmentioning

confidence: 99%

Limitations of Extreme Nonlinear Ultrafast Nanophotonics

2015

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High-harmonic generation (HHG) has been established as an indispensable tool in optical spectroscopy. This effect arises for instance upon illumination of a noble gas with sub-picosecond laser pulses at focussed intensities significantly greater than 10 12 W/cm 2 . HHG provides a coherent light source in the extreme ultraviolet (XUV) spectral region, which is of importance in inner shell photo ionization of many atoms and molecules. Additionally, it intrinsically features light fields with unique temporal properties. Even in its simplest realization, XUV bursts of sub-femtosecond pulse lengths are released. More sophisticated schemes open the path to attosecond physics by offering single pulses of less than 100 attoseconds duration.Resonant optical antennas are important tools for coupling and enhancing electromagnetic fields on scales below their free-space wavelength. In a special application, placing field-enhancing plasmonic nano antennas at the interaction site of an HHG experiment has been claimed to boost local laser field strengths, from insufficient initial intensities to sufficient values. This was achieved with the use of arrays of bow-tie-shaped antennas of ∼ 100 nm in length. However, the feasibility of this concept depends on the vulnerability of these nano-antennas to the still intense driving laser light. We show, by looking at a set of exemplary metallic structures, that the threshold fluence F th of laser-induced damage (LID) is a greatly limiting factor for the proposed and tested schemes along these lines. We present our findings in the context of work done by other groups, giving an assessment of the feasibility and effectiveness of the proposed scheme.

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Raman Spectroscopy—A Prospective Tool in the Life Sciences

Cited by 325 publications

References 87 publications

Microspectroscopy as applied to the study of wood molecular structure

Microspectroscopy as applied to the study of wood molecular structure

Application of Graphene in Surface-Enhanced Raman Spectroscopy

Limitations of Extreme Nonlinear Ultrafast Nanophotonics

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