Raman spectroscopy resources

  • Ocean Insight: Raman Spectroscopy Analysis and Techniques

    Ocean Insight: Raman Spectroscopy Analysis and Techniques

    Raman spectroscopy uses scattering of laser light to probe molecular structure. Of every million photons scattered, a single photon will interact with the vibrational states of a sample molecule and emit light of a different wavelength.

  • Nanobase Webinar: Toward Extreme Technology for Raman Scattering

    Nanobase Webinar: Toward Extreme Technology for Raman Scattering

    Nanobase invites you to their first webinar of 2021. In this webinar, one of Nanobase's reference customers, Prof Mun Seok Jeong, demonstrates a technical edge of Nanobase's Raman instrumentation with examples of a recent project of AFM-Raman integration for TERS analysis. Prof. Jeong's presentation will be followed by a detailed explanation of Nanobase's Raman instrument capabilities and a Q&A session.

  • Laser Quantum: How to Choose a Raman Spectroscopy Laser

    Laser Quantum: How to Choose a Raman Spectroscopy Laser

    Above: Laser Quantum's ventus 532 cw laser

    Raman spectroscopy is a non-destructive analytical technique that yields detailed information about the chemical structure, crystallinity, and phase of sample matter. It can also be used to investigate various molecular interactions based on the scattering of incident light. Lasers have proven incredibly valuable as light sources for Raman scattering due to their high intensity and practical monochromaticity. But not all Raman spectroscopy lasers are created equally.

  • Laser Quantum: Need a highly reliable laser with excellent beam qualities for Raman spectroscopy?

    Laser Quantum: Need a highly reliable laser with excellent beam qualities for Raman spectroscopy?

    The Laser Quantum ventus 532 is built for Raman spectroscopy applications, with an M2 close to unity allowing for a tighter focal point hence a higher intensity. Raman spectroscopy is a weak process, so you need a high intensity IR necessary to obtain a good signal​. The tight focal point is also important for spatial resolution. If you want to look at a small area/volume of a sample, you need to focus the laser to a small spot (which requires an M2 close to 1).  The ventus has a leading noise specification of <0.15% RMS, enabling a stable and consistent result in Raman spectrum: due to the weak scattering process, you want a laser that is consistent in power. As is common in Raman, customers take multiple spectra and average these, so you need your laser to be as stable as possible to make these consistent measurements, as any changes in the noise is ‘passed’ on to the final Raman spectrum​, the ventus sizably reducing this risk with its low noise. During Raman spectroscopy, having the flexibility to couple to a microscope offers ease of integration as your laser can be placed anywhere in the lab and the ventus can be free spaced coupled to a microscope. And finally, the ventus has a wavelength of 532.8 nm better than ±1 nm, making it easy to find filters to suit your set-up.

    If you are involved in Raman spectroscopy and want to find out more, enquire today about the ventus 532.

    Watch Laser Quantum's Raman spectroscopy video to learn more: