Scientists at the University of St. Andrews have created a wearable, noninvasive device based on near-infrared spectroscopy (NIRS) that can be used to investigate blood volume and oxygenation patterns in freely diving marine mammals, such as seals. When mammals are submerged in water, they show a suite of cardiovascular responses such as reduced heart rate and constriction of peripheral blood vessels. The researchers hypothesized that NIRS could provide high-resolution, relative measures of oxygenated and deoxygenated hemoglobin within specific tissues, which then could be used to...Read full articleRelated content from Photonics MediaARTICLESUsing VIS-NIR Spectroscopy to Quantify Soil ContaminationResearchers at the University of Nebraska-Lincoln have found a new method to assess oil contamination in soil by using VIS-NIR spectroscopy. The technique has significant advantages over previous...Photonics.com 8/18/2020Photothermal Process Irradiates Nanoparticles to Control Cell ActivityUsing nanoparticles as photothermal nanotransducers, scientists at Washington University in St. Louis demonstrated reversible modulation of electrical activity in excitable nerve and heart muscle...BioPhotonics Sep/Oct 2021 IssueEuropean Initiative Moves to Introduce Standardizations for Diffuse OpticsA collaboration between 12 European institutions aims to deliver performance assessment and standardization (PAS) in the field of diffuse optics (DO). DO analyzes how light is absorbed and scattered...Photonics.com 6/20/2022Startup Integrates Research-Grade Brain Imaging into Wearable CapNeurotechnology company Kernel has developed a wearable headset device for brain measurement. The device, called Kernel Flow, is based on time-domain functional near-infrared spectroscopy (TD-fNIRS)...Photonics.com 1/31/2022PRODUCTSChromacity Near-IR OPOThe Chromacity Near-IR OPO is one of the most affordable picosecond lasers on the market, delivering high average power across the 1.4 µm – 4 µm region, without compromise on...Promoted Content January 2021 IssueCMOS SensorThe Apx60 high-resolution CMOS sensor from Atik Cameras Ltd. is built for the industrial, scientific, and OEM sectors. The large device employs 61 MP over a 43.3-mm diagonal sensor. With no amp...Photonics.com 11/24/2021SWIR LEDsThe Epitex D-Series of SWIR LEDs from Ushio achieves a two-fold improvement of output and efficiency over its predecessor for the majority of wavelengths. Low-power chips are mounted in...BioPhotonics Nov/Dec 2020 IssueHigh-Power Tall TO-CanSheaumann's Tall TO-Can has improved upon a favorite in the industry, bringing you a high-power, continuous-wave, single-mode option up to 600 mW. 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The impact of photonics on research, technology, navigation, culture, astronomy, forensics, and...Photonics HandbookAdaptive Optics: Taming Atmospheric Turbulence: For more than three centuries, the Earth’s atmosphere has frustrated astronomers. The layer of gases that we breathe also distorts the images formed by telescopes. This means that conventional telescopes of more than a few centimeters in diameter cannot reach the resolution limit set by their optics.To Isaac Newton the problem was clear, and in 1704 he realized the effects of atmospheric turbulence on image formation. Just as heat waves shimmering above a hot patch of ground can distort our...Photonics HandbookAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. These articles will provide the tools optics designers need to tailor their designs to the appropriate manufacturing process and to optimize the cost of component fabrication.Aspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...Photonics HandbookWHITEPAPERSHigh Absorbance Scanning with the PerkinElmer LAMBDA 850+ UV/Vis and LAMBDA 1050+ UV/Vis/NIR SpectrophotometersThis application note describes the procedure for high absorbance scanning with the reference grade PerkinElmer LAMBDA™ 850+ UV/Vis and LAMBDA 1050+ UV/Vis/NIR double monochromator spectrophotometers.Photonics.com 10/4/2021Multilayer Coating for Extreme Ultraviolet ExperimentsExtreme ultraviolet (EUV) multilayer coatings have been designed and fabricated for many kinds of experiments including high-order harmonics application. In this paper, we present recent results...Photonics.com 12/4/2020Automated Solutions for SAE Standard HUD MeasurementHead-up display (HUD) technology is one of the largest growth areas in the automotive market, and standard measurement criteria are rapidly being defined to evaluate augmented projections for visual...Photonics.com 1/14/2021Methods for Measuring Display Defects and Mura as Correlated to Human Visual PerceptionHuman vision and perception are the ultimate determinants of display quality, however human judgment is variable, making it difficult to define and apply quantitatively in research or production...Photonics.com 1/14/2021WEBINARSNeuroscience in the Everyday WorldRecent advancements in wearable functional NIR spectroscopy (fNIRS) devices and signal processing tools expand the repertoire of unconstrained experiments for neuroscientific research. Meryem Ayse...Photonics.com 10/27/2021European Photonics Manufacturing Services Funded by ECThis event is supported by the European initiatives presented and is moderated by EPIC, the European Photonics Industry Consortium. The European Commission is helping companies access the...Photonics.com 6/30/2021Raman Spectroscopy for Research and IndustryFREE WEBINAR Additional Questions and Answers from the Webinar are below: Speakers to include: David J. Brady, Duke University Computational and Compressive Raman Spectroscopy ...Photonics.com 6/24/2013Fluorescence Spectroscopy A-TEEM Method for Rapid Vaccine CharacterizationVaccines, because they are formulated at low concentrations and with confounding excipients such as trehalose, are difficult to characterize with Raman, Fourier transform infrared (FTIR), or NIR...Photonics.com 4/13/2022PHOTONICS DICTIONARY TERMSNernst glowerImportant in the field of spectroscopy, the Nernst glower is a solid-body radiator that is made up of a filament of rare-earth oxides. Heating the filament by continuous ohmic heating results in...EDU.photonics.com 3/5/2018organic dyeAny organic substance, that when dissolved in appropriate liquid based solvents will absorb and emit electromagnetic radiation in the near ultraviolet, visible and near infrared spectral regions....EDU.photonics.com 3/5/2018infrared detectorA device used to detect radiation from the infrared region. It may be a thermal detector, such as a bolometer, thermocouple or Golay cell, or it may be a solid-state photon detector....EDU.photonics.com 9/8/2009Mossbauer effect spectroscopySpectroscopy characterized by the Mossbauer effect - recoilless emission and absorption of nuclear gamma radiation- which investigates miniscule changes in the energy levels of atomic nuclei in...EDU.photonics.com 9/8/2009MEDIACompact MEMS-FPI Sensor for Portable NIR SpectrometersHamamatsu’s MEMS-FPI spectrum sensors utilize a built-in MEMS Fabry-Perot interferometer and InGaAs PIN photodiode to measure NIR spectra. With their high sensitivity to NIR wavelengths and their...Photonics.com 4/28/2020Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 2/21/2018PIC Fundamentals, Design at Heart of AIM Photonics Summer AcademyStudents from large and small size companies and bigger Department of Defense affiliates of the AIM Photonics Institute took part in the recent AIM Photonics Summer Academy at MIT. This was the third...Photonics.com 7/30/2018Light Matters Extra: Taking Photonics Innovations from the Lab to the Operating Room - 01.2018In this month's Light Matters Extra, we give you an in-depth look at the relationship between researchers and scientists at the University of California Davis, and surgeons and clinicians at nearby...Photonics.com 1/18/2018PHOTONICS BUYERS' GUIDE CATEGORIESNear-Infrared SpectrometersCCTV LensesNear-Infrared CamerasSolid-State Dye LasersCOMPANIESOZ Optics LimitedEstablished in 1985, OZ Optics is a leading worldwide supplier of fiber optic components, test equipment and sensors. OZ Optics manufactures its products in three locations, Ottawa (Canada),...Photonics Buyers' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideHelioWorks Inc.Premier Manufacturer of Specialized Infrared Lamps and Creator of Innovative IR Sources and Infrared Emitters. We manufacture a wide range of infrared lamps primarily for the OEM market. Our...Photonics Buyers' GuideMLD Technologies LLCExperts In Thin-film Coating Design We practice a design-before-quote approach to help customers refine specifications and minimize technical risk. We understand how coated optical elements...Photonics Buyers' Guide