Probing gas bubbles inside industrial glasses by Raman scattering

Pedeche, S.; Simon, Patrick; Matzen, Guy; Moulin, B.; Blanchard, K.; Quérel, Gilles

doi:10.1002/jrs.984

Cited by 13 publications

(11 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relatively noisy spectrum, nevertheless, features prominently two sharp signals occurring at ca 1555 and 2330 cm 1 within the double and triple bond stretching regions owing to molecular oxygen and nitrogen species, respectively. 81,82 As indicated in Fig. 3 and as listed in Table 2, a FWHH bandwidth of ¾6 cm 1 has been extracted for both Raman bands confirming the initial value for the resolution of our DUV Raman measurements, which has previously been deduced from the degree of separation of the cyclohexane doublet in the C-H stretching region (Fig.…”

Section: Spectral Resultssupporting

confidence: 83%

A new single grating spectrograph for ultraviolet Raman scattering studies

Hecht

Clarkson

Smith

et al. 2005

J Raman Spectroscopy

View full text Add to dashboard Cite

A state-of-the-art single grating spectrograph for Raman scattering studies within the deep ultraviolet (DUV) region of the electromagnetic spectrum is discussed. It is based on a high throughput DUV version of a single-stage monochromator originally designed for use in the visible spectral region. Its key components are two identical, newly designed calcium fluoride camera lenses each consisting of five different individual optical elements. The first of these lenses collimates the Raman scattered DUV radiation entering the spectrometer through its entrance slit. The second lens focuses the collimated beam of dispersed Raman scattered DUV radiation emerging from a high-resolution reflection grating onto a charge coupled device (CCD) detector with enhanced DUV sensitivity. A novel high transmission edge filter is used as a blocking device for a sufficient rejection of the Rayleigh line generating a relatively sharp transmittance cutoff at a Stokes Raman wavenumber shift of about ∼450 cm −1 employing 257 nm DUV excitation. Overall, this new spectrograph enables rapid collection of Stokes DUV Raman scattered photons at f /2 wide apertures with sufficiently large signal-to-noise ratios (SNRs) in relatively short acquisition times and with an effective spectral resolution of approximately ∼6 cm −1 . Backscattered Raman spectra of the following chemicals are presented as typical results illustrating the excellent performance characteristics of this new DUV spectrograph for a variety of experimental conditions within different scattering scenarios and for a relatively wide range of commonly used sample preparation techniques: neat cyclohexane, laboratory air, polycrystalline D-glucose, single crystal L-alanine and a dilute aqueous solution of 2 -deoxyadenosine.

show abstract

Section: Spectral Resultssupporting

confidence: 83%

A new single grating spectrograph for ultraviolet Raman scattering studies

Hecht

Clarkson

Smith

et al. 2005

J Raman Spectroscopy

View full text Add to dashboard Cite

show abstract

“…Many rotational lines of N 2 and O 2 caused by scattering from air [33] are superimposed with the Raman signal up to 150 cm −1 . These lines are usually subtracted "by hand".…”

Section: Air Superimpositionmentioning

confidence: 98%

Low-frequency Raman scattering under high pressure in diamond anvil cell: Experimental protocol and application to GeO2 and SiO2 boson peaks

Deschamps¹,

Martinet²,

Ligny³

et al. 2012

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

“…Indeed, permanent gases trapped in vitreous materials typically show nonperiodic spectra with maxima in the range of ca 40-100 cm −1 . [46,47] Carbon Elemental carbon, in its wide variety of forms, has been the subject of numerous Raman studies. In particular, amorphous (unordered) and graphitic (ordered) carbon have been intensively investigated, due to their widespread distribution in the environment as well as health concerns involving particulates.…”

Section: Interference Patternsmentioning

confidence: 99%

Pure component Raman spectral reconstruction from glazed and unglazed Yuan, Ming, and Qing shards: a combined Raman microscopy and BTEM study

Widjaja

Lim

et al. 2011

J Raman Spectroscopy

View full text Add to dashboard Cite

Raman mapping measurements were performed on the glazed and unglazed surfaces of shards excavated from Yuan, Ming, and Qing dynasty strata. A number of areas on each surface were chosen. Circa 21 × 21 pixels were measured for each area using both 514 and 785-nm laser as the Raman excitation. Data were collected from 100-3600 cm −1 . Many sets of spectra exhibited very intense fluorescence. In spite of the intense fluorescence, the resulting sets of spectra were collated and analyzed together using the band-target entropy minimization (BTEM) algorithm. Pure component spectral estimates of many of the major components were achieved, without the use of any a priori information such as spectral libraries. These include α-silica quartz, carbon, anatase, cobalt oxides, hematite, glassy silicate, and lanthanide complexes. In addition, two further unidentified pure component spectra A and B were recovered as well as an interference pattern due to the microscopic texture of the shards (associated with small particle/thin layer domains). The carbon was primarily present in elemental form, i.e. mixture of amorphous and graphitic (unordered and ordered domains); however there is an evidence of some partial oxidation, i.e. formation of carboxylates. The interference patterns and the lanthanide complexes were only observed when using the longer wavelength red laser. The cobalt oxides and the anatase were only observed when using the green laser. In summary, the combination of Raman microscopy and BTEM has allowed the enumeration of many of the underlying spectral patterns present and hence unambiguous identification of the major individual components present in the archaeological samples. This approach would appear applicable to other classes of archaeological materials as well. Limitations and extensions of the present approach are discussed.

show abstract

Probing gas bubbles inside industrial glasses by Raman scattering

Cited by 13 publications

References 10 publications

A new single grating spectrograph for ultraviolet Raman scattering studies

A new single grating spectrograph for ultraviolet Raman scattering studies

Low-frequency Raman scattering under high pressure in diamond anvil cell: Experimental protocol and application to GeO2 and SiO2 boson peaks

Pure component Raman spectral reconstruction from glazed and unglazed Yuan, Ming, and Qing shards: a combined Raman microscopy and BTEM study

Contact Info

Product

Resources

About