Request InfoOptiGrate Corp.OptiGrate Corp. has unveiled a line of ultranarrow notch and bandpass filters for Raman spectroscopy applications. The filters have a bandwidth of <10 cm—1, which the company says is about 10 times narrower than other notch and bandpass filters commercially available for these applications. The filters enable measurements of ultralow-frequency Raman bands with standard instruments, rather than with the previous complex, bulky and more expensive tools. Applications include nanotechnology, pharmacology and semiconductor processing. Using a single-stage spectrometer, Stokes and...See full productRelated content from Photonics MediaPRODUCTSBioPhotonics May/Jun 2023 IssueBandpass FiltersThe ADVANTECH™ hard coat bandpass filters from Andover Corp. offer steep slopes, high light transmission, durability, and long life for demanding applications. The filters provide...Photonics Spectra January 2024 IssueCompact PhotorelayThe TLP3476S photorelay in the S-VSON4T package from Toshiba Electronic Devices & Storage Corp. offers a high-speed turn-on time, helping to shorten test time for semiconductor testers. The...Promoted Content February 2023 IssueCustom WL Selective Optical FiltersIridian Spectral Technologies designs and manufactures wavelength selective optical filter solutions providing “more signal, less background”, customized to meet the technical and...Photonics.com 10/2/2023C- & L-band Optical Network TestersThe WaveMaker™ 4000A, WaveShaper® 1000B, and WaveShaper® 4000B from Coherent are instruments made to test optical networks. The WaveMaker instrument series operates in the C-band, and...ARTICLESPhotonics.com 8/31/2023Skin-Like Microfiber Grating Gauges Cardiovascular WellnessAccording to the World Health Organization, 17.9 million people die annually due to cardiovascular diseases. Soft wearable devices are well suited for monitoring physiological signals from...Photonics Spectra September 2023 IssueFiber Optic Tag Enables Efficient All-Optical Link EncryptionIn an advancement that could improve the way that optical distribution networks are maintained, researchers at Shenzhen University have demonstrated an encrypted fiber optic tag for all-optical...Photonics Spectra January 2023 IssueMachine Learning Reduces Drift in Fiber SensorsUsing machine learning and an established mathematical model, scientists at the National Institute of Standards and Technology (NIST) developed a machine learning-based algorithm to predict drift in...BioPhotonics Mar/Apr 2024 IssueOptical-Plasmonic SERS Platform Clocks Molecular SystemsAn optical plasmonic tweezer-controlled surface-enhanced Raman spectroscopy (SERS) platform developed by Hong Kong University of Science and Technology (HKUST) enables efficient, high-throughput,...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookUltraviolet Filters: Past and PresentIn their earliest forms, UV bandpass filters that were optimized for wavelengths less than 400 nm, such as the Schott UG or the Hoya U-series, were constructed of absorbing compounds in glass. Such...Photonics HandbookAspheric Lenses: Optimizing the DesignWith the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...Photonics HandbookOptical Delay Lines: Key to Time-Resolved MeasurementsOne of the most critical elements of any time-resolved spectroscopy and dynamics experiment is the optical delay line. A typical optical delay line consists of a retroreflector or folding mirrors on...Photonics HandbookSpectroscopy: Mastering the TechniquesThe scope of optical spectroscopic instrumentation is indeed very broad. Many analytical methods rely on the interaction of radiation with matter and are often described in the context of quantum and...WHITEPAPERSPhotonics.com 4/28/2023“Fingerprint” vs Handheld Raman Applications and the Different Optical Filters That Enable ThemRaman spectroscopy is a powerful non-invasive, non-contact tool capable of identifying molecular constituents of samples. Wavelength selective optical filters are used to block the dominant Rayleigh...Photonics.com 10/19/2022Multiphoton Imaging of Mouse IntestineTwo-photon excited fluorescence (2PEF) and second harmonic generation (SHG) are complementary multiphoton imaging techniques for studying biological samples. Both utilise femtosecond pulsed infrared...Photonics.com 9/29/2023Accuracy in Optical DesignAnswering some common questions new users of optical design and analysis software have are “How accurate are the results?” or “Can I trust the results I get?” and discussing the importance of...Photonics.com 4/27/2022How the Neo Spectroradiometer Drastically Improves Filter QualityAdmesy develops spectroradiometers, colorimeters, and light meters. They are used in large volume 24/7 production testing as well as in smaller volume niche system manufacturing. One application...WEBINARSPhotonics.com 10/26/2023Narrow Linewidth Laser Diode Technology for BiophotonicsNarrow linewidth lasers are a key component of numerous biophotonic diagnostic measurements, including Raman spectroscopy, flow cytometry, and blood flow. The miniaturization of these light sources...Photonics.com 4/22/2014Light Sources for Stimulated Vibrational MicroscopyAdditional questions and answers: Q: What is the power intensity for the adjusted supercontinuum Stokes laser? A: There are at least two PCF modules commonly used for supercontinuum...Photonics.com 11/16/2021Get More Out of Your Optical MeasurementsMaximizing the information captured within optical measurements is the key to discovering smaller effects and observing faster processes. Both scales are at the heart of optical measurements, whether...Photonics.com 1/19/2021Advancements in High-Power Semiconductor LasersVertical integration in high-power semiconductor lasers helps when addressing a variety of applications in pumping, materials processing, medical, and more. Jörg Neukum describes a series...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionaryfiber laserA fiber laser is a type of laser in which the active gain medium is an optical fiber doped with rare-earth ions such as erbium, ytterbium, or neodymium. Fiber lasers generate coherent light through...Photonics DictionaryBrillouin scatteringBrillouin scattering is a phenomenon in physics where an incident electromagnetic wave (usually light) interacts with acoustic phonons (quantized lattice vibrations) in a material, resulting in the...Photonics Dictionaryfiber Bragg gratingA fiber Bragg grating (FBG) is a type of optical filter that is inscribed or "written" into the core of an optical fiber. It consists of a periodic modulation of the refractive index along the length...Photonics Dictionarystimulated Brillouin scatteringIn Stimulated Brillouin Scattering (SBS), an incident photon (usually laser light) interacts with acoustic phonons in a medium. The energy and momentum of the incident photon are transferred to the...VIDEOSPhotonics.com 2/21/2018Photonics 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 9/28/2017Light Matters Extra: Optics & Photonics Technology Program, STCC - 09.2017In this month’s Light Matters Extra, we take you to the Springfield Technical Community College campus and introduce you to Professor Nick Massa, who has been teaching Optics and Photonics there for...Photonics.com 10/25/2023Introduction to OptometricsLearn about the team behind Efficiency Replicated. Experience. Trust. Partnership. We are your diffractive optics design solution partner.Photonics.com 9/28/2017Merging Industry and Education Through Photonics - LIGHT MATTERS 09.2017Tune into this month’s edition of Light Matters for the complete list of Photonics Media’s Industry Beacon award winners. We’ll also introduce you to an Industry Beacon in the Educator category, and...PHOTONICS BUYERS' GUIDE CATEGORIESFiber Bragg GratingsA fiber Bragg grating is a type of optical filter that is inscribed or "written" into the core of an optical fiber. It consists of a periodic modulation of the refractive index along the length of...Phase MasksIn optics and photolithography, a phase mask refers to a device that modifies the phase of light waves passing through it. The phase mask is used to control the spatial distribution of the light's...Detector/Filter CombinationsHolographic FiltersCOMPANIESPhotonics Buyers' GuideShanghai Optics Inc.ISO 9001 & ISO 13485 certified and D&B DUNS # 113515303 Shanghai Optics is an unparalleled custom system solution provider offering advance precision custom optical design, engineering,...Photonics Buyers' GuideOmega Optical LLCOmega Optical has been bringing you the light you need since 1969. Omega specializes in thin-film interference filters in the 190 nm - 10 µm wavelength range. The layers are...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' GuideDeposition Sciences Inc. (DSI)World Leader in High Performance, Durable Optical Thin-Film Coatings Deposition Sciences, Inc. (DSI®) produces a wide variety of highly reliable, durable, and heat-resistant optical...