About This Webinar
Raman spectroscopy is widely used in a variety of laboratory and process monitoring applications because of its excellent specificity, non-destructive nature, and deployability for in situ chemical measurements. However, Raman techniques have traditionally been limited in their speed and sensitivity because the low scattering cross section of the Raman effect produces an intrinsically weak optical signal which often suffers from lower signal-to-noise ratio than other spectroscopic modalities.
Recent advancements in dispersive spectrometer design provide a pathway to making Raman spectroscopy more powerful and more broadly applicable to challenging applications where conventional Raman spectrometers are too slow or insufficiently sensitive.
Behr shares an overview of the "virtual slit" concept which permits modern Raman systems to collect and analyze 10 to 30 times more photons per unit time than conventional Raman devices. He also presents an assortment of case studies illustrating real-world uses of virtual slit technology for significantly improved sensitivity, such as detection of trace contaminants down to five ppm and lower, superior speed, such as acquiring high-quality spectral data at one measurement per second or faster, and inherently safe compliance for hazardous industrial zones, such as reduced laser power under IECEx/ATEX directives.
*** This presentation premiered during the
2024 Photonics Spectra Raman Spectroscopy Summit. For more information on Photonics Media conferences and summits, visit
events.photonics.com
About the presenter
Brad Behr, Ph.D., served as senior optical scientist and then chief technology officer of Tornado Spectral Systems prior to its recent acquisition by Bruker. He started his career as an astrophysics researcher, using high-resolution optical spectroscopy to measure the chemical compositions of ancient stars in the outer reaches of our Milky Way galaxy, but since 2012 he has been applying the philosophy of "no photon left behind" to terrestrial applications like Raman spectroscopy. Behr earned a bachelor’s from Williams College, a doctorate from Caltech, and holds eight U.S. patents plus 38 corresponding international patents.