👉 Did you miss this week's Laserlab-Europe Talk on ‘Compressive Raman imaging: a computational framework for high-speed chemical microscopy' by Hilton B. de Aguiar? 💡 Watch the recording: https://lnkd.in/dBH8h-qA 🎬 Watch all previous Laserlab-Europe Talks on our YouTube channel: https://lnkd.in/eHTvBdiw 💡 #Raman #imaging is recognized as a powerful label-free approach to provide contrasts based on chemical selectivity. Nevertheless, Raman-based microspectroscopy still have drawbacks precluding high-speed chemical imaging. The main issue is the inherent high data throughput in #microspectroscopy: fast spectral imaging is challenging for dynamic and large-scale imaging due to its data acquisition, processing and representation change (from vibrational resonances amplitudes to chemicals concentration) procedures. These challenges can be overcome by exploiting the concept of compressive Raman imaging: by leveraging the sparsity [1] and redundancy [2] in Raman data sets, one can develop computational procedures to considerably simplify and speed up the spectral image acquisition. Exploiting such framework, we have recently reached speeds compatible with video-rate imaging [3] by detecting just a handful of photons.In this presentation, I will introduce and discuss the different ways of performing compressive Raman, in particular focusing on challenges for bio-imaging, and also show more recent results applied to long-time imaging of electrochemical systems [4]. References [1] Sturm et al, ACS Photon. 6, 1409 (2019); Scotte et al. Anal. Chem. 90, 7197 (2018). [2] Soldevila et al, Optica 6, 341 (2019). [3] Gentner et al, Opt. Lett. in print (2024). [4] Pandya et al, Nat. Comm. 15, 8362 (2024). -- The Laserlab-Europe Talks consist of a series of online seminars and panel discussions proposed and organised by our community on specific topics (thematic or research-specific) and provide a platform for regular information exchange and knowledge sharing.The talks take place on a Wednesday afternoon each month and are open to all interested parties, from PhD students to experts in the field and industrial and medical partners as appropriate.
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Scientists have developed a novel and creative MIR hyperspectral microscope using SPI technology and a QCL. This innovation offers faster, more cost-effective chemical analysis compared to traditional methods, promising new frontiers in microscopic imaging. Read more: https://lnkd.in/gQW2HyUy
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"One of the most beautiful experiments with SPDC light is that of induced coherence. It has originally been demonstrated and analyzed by Zou, Wang, and Mandel in 1991, and is discussed and utilized to this day. In this experiment..." Check out my new blog post about "Induced coherence and imaging with undetected photons", that I wrote for Raicol Crystals. https://lnkd.in/drZuK8se Let me know what you think, and if there are similar topics you would like me to write about :)
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I am eager to share the preprint of our work on imaging carbohydrate stereochemistry directly with non-contact AFM, the structure search aided by a combination of first-principles methods and machine learning to identify the highly flexible structures. We are able to link the on-surface chirality of the molecular monolayer to the stereochemistry of the individual carbohydrates. https://lnkd.in/gxci4jx9
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Research scholar @ Department of Biotechnology and microbiology Karnatak University Dharwad
Exploring the nanoworld Is fascinating. Techniques like XPS for surface analysis, FE-SEM for high-res imaging, XRD for crystal structure insights, and HR-TEM for atomic-scale visualization are driving innovation and discovery in materials science! #materialsScience #nanotechnology"
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https://lnkd.in/eefSMPkx Microscopy is an enabling technology. It gives us an unpresedented insight in the micro world.
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Wistar’s newest microscope, the Leica Stellaris 8 3X TauSTED system provides resolutions down to 30 nanometers. But how does this compare to conventional microscopes? Traditional optical microscopes typically provide a maximum resolution of around 200 nanometers. That may be sufficient for an image of a single bacterium (about 1000 nm), but not sharp enough to see a 100-nm virus in much detail. The Stellaris uses Stimulated Emission Depletion to achieve resolutions that are six to seven times better than conventional optical microscopes, giving our scientists a powerful new tool to study diseases. Check out our website to learn more. https://lnkd.in/eYKbQEhy. #Microscopy #LifeSciences #Biomedical #WistarScience
