BioPhotonics spoke with Keith Paulsen, the Robert A. Pritzker Professor of Biomedical Engineering at Dartmouth College’s Thayer School of Engineering. Paulsen and his colleagues recently published a paper (www.doi.org/10.1364/optica.446576) about the use of a deep learning algorithm to accelerate the reconstruction of tissue images by combining scans from magnetic resonance imaging (MRI) together with diffused optical signals from near-infrared spectral tomography (NIRST). The resulting images have the potential to reveal whether breast cancer tumors are malignant or benign. Is it...Read full articleRelated content from Photonics MediaARTICLESImage Reconstruction Algorithm Improves Breast Cancer DetectionResearchers from Dartmouth College, Beijing University of Technology, and the University of Birmingham have developed an image reconstruction approach that could contribute to better breast cancer...Photonics.com 3/4/20223 Questions with Euiheon ChungBioPhotonics spoke with Euiheon Chung, a biomedical science and engineering professor at Gwangju Institute of Science and Technology in South Korea. Chung and his colleagues recently published a...BioPhotonics Nov/Dec 2021 IssueShift to Transmissive Mode Improves Thick Tissue Laser Speckle Contrast ImagingAlthough reflective-detected laser speckle contrast imaging (LSCI) is a powerful tool for monitoring blood flow circulation at the surface layers of tissue, it is inadequate for detecting signals...Photonics.com 1/7/20223 Questions with Nishikant ‘Nish’ SonwalkarNishikant “Nish” Sonwalkar, founder of SunDensity and inventor of the company’s trademarked photonic smart coating (PSC) technology, was named the top winner of the Luminate NY...Photonics Spectra January 2021 IssuePRODUCTSGreen Laser DiodesThe FERT-525-XW-FC105 series of fiber-coupled laser diodes from Frankfurt Laser Co. feature a wavelength of 525 nm with power from 1 to 4 W. The output fiber is a 105-µm detachable...Photonics.com 12/22/2021RGB Laser Diode Micro-moduleRGB Micro-modules with normal or superluminescent laser diodes have been announced by EXALOS GmbH, enabling the development of augmented and mixed reality smart glasses designs based upon displays...Photonics.com 3/30/2022UV DPSS LaserThe Duetto 349 single-frequency diode-pumped solid-state laser from UniKLasers Ltd. is a continuous-wave device that emits at 349 nm with a 50-mW output. The UV laser can be used across a wide...BioPhotonics May/Jun 2021 IssueVCSEL Line Beam Transmitter ModuleThe LX02 KW VCSEL Line Beam Transmitter Module from Focuslight Technologies Inc. is designed for lidar applications. The laser transmitter uses 5-J, high-power VCSEL chips and beam-shaping...Photonics.com 6/21/2022PHOTONICS HANDBOOK ARTICLESOTDRs: Finding the Weak Spots in Fiber Links: The optical time-domain reflectometer (OTDR) is used to characterize a fiber optic span. It performs single-ended tests and can calculate fiber attenuation and uniformity and splice and connector losses. It can also locate breaks and determine fiber length. Its ability to locate and measure reflectance and loss makes it the troubleshooting and fault locating equipment of choice. New generation OTDRs include advanced functions such as macrobend location, active-fiber testing and automatic trace acquisition.An optical time-domain reflectometer sends short pulses of light into a fiber and measures its reflections as a function of time. The delay of these reflections to the detector as well as their...Photonics HandbookDriving Diode Lasers: A Straightforward Procedure: Observing the basic principles and understanding the physical behavior of diode lasers helps users operate them correctly and safely.By observing a few simple rules that govern diode lasers’ properties, driving them loses much of its mystery. Below its threshold current, a diode laser emits LED light with spontaneous...Photonics HandbookNd:YAG Lasers: Standing the Test of Time: The Nd:YAG laser crystal was developed not long after the discovery of the ruby laser in the 1960s. Of all the solid-state laser crystals, it has stood the test of time best. Its high gain, narrow linewidth, low threshold and physical properties make it a most versatile laser material for a variety of applications.The ubiquitous Nd:YAG laser has played many roles over the years. For the military, it has provided rangefinding and target designation capabilities. When used with nonlinear optics or as a pump...Photonics HandbookLasers: Understanding the Basics: Although lasers range from quantum-dot to football-field size and utilize materials from free electrons to solids, the underlying operating principles are always the same. This article provides the basic information about how and why lasers work.Over 60 years have passed since the first demonstration of a laser in 1960. After the initial spark of interest, lasers were for a while categorized as “a solution waiting for a problem,”...Photonics HandbookWHITEPAPERSCamera Systems for Deep Learning in Medical & Life SciencesDeep learning algorithms enable a steadily growing number of new applications that were previously considered unsolvable for machines. This White Paper explains the four steps of a typical image...Photonics.com 8/26/2021Advances in AI for Industrial InspectionNew technology advancements are making it easier for manufacturers to embrace deep learning as part of the inspection process. Today, we train deep learning systems with fewer bad images or even...Photonics.com 8/9/2021WEBINARSPhotonics for OphthalmologyPhotonics Media invites you to join us for our upcoming FREE digital conference, "Photonics for Ophthalmology." The event will feature several 15-minute online presentations on the use of light-based...Photonics.com 6/9/2016Biophotonic Imaging for Medicine: A Digital ConferenceResearchers from around the world presented their latest work at “Biophotonic Imaging for Medicine: A Digital Conference.” Presentations focused on a range of light-based imaging and...Photonics.com 6/11/2015The Future of Imaging: Three PerspectivesPresenters: Professor Stephen Boppart The Future of Healthcare With Optical Biomedical Imaging A medical doctor and professor at the University of Illinois, Boppart's...Photonics.com 12/14/2011Enabling Multiplexed and Sensitive Bioanalysis Using SERS and SESORSDetection of specific biomolecules is central to modern biology and to medical diagnostics, where identification of a particular disease is based on biomarker identification. Many detection methods...Photonics.com 1/21/2021PHOTONICS DICTIONARY TERMSnear-infrared spectroscopy cerebral oximetryA monitoring technique used to measure the oxygen saturation levels in the brains of patients, commonly in operating room and neonatal intensive care unit settings. 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Quantum cascade lasers offer many benefits: They...EDU.photonics.com 6/25/2019MEDIADirk Englund: Quantum Photonics: Breakthroughs and LimitationsThe latest in quantum computing and quantum optics is our focus, as Dirk Englund from MIT’s Quantum Photonics Laboratory shares his insights on the latest in materials processing, PICS, photonics...Photonics.com 2/16/2021Light 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 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.com 9/28/2017PHOTONICS BUYERS' GUIDE CATEGORIESDeep Learning SoftwareMachine Vision SoftwareGreen Diode LasersData Analysis SoftwareCOMPANIESBWT Ltd.BWT specializes in developing and manufacturing high performance diode laser components and subsystems. As a leading supplier of fiber coupled diode lasers, BWT Beijing provides the lasers in a wide...Photonics Buyers' GuideMicro Laser Systems Inc.We are a manufacturer of Diffraction Limited Fiber Coupled Laser Systems, Optical Systems, and Fiber Optic Systems from 240 nm to 6000 nm. Unique products include various sizes of Fiber Collimators,...Photonics Buyers' GuideAKELA Laser CorporationAKELA Laser Corporation is a leading manufacturer of high-powered diode lasers specializing in custom laser diode products with wavelengths in any combination from 375 nm to 12 µm and output...Photonics Buyers' GuideFocuslight Technologies Inc.In the U.S., contact Focuslight Technologies Inc. Fremont, CA Tel: +1 650-814-4939 Focuslight is committed to providing our customers with reliable, high performance laser products and...Photonics Buyers' Guide