Kevin RobinsonScientists have unanswered questions about the physical mechanisms that occur when laser energy cuts living tissue. That has not kept lasers out of surgery, but now research at Vanderbilt University in Nashville, Tenn., is shedding light on the dynamics of laser-generated plasma in fruit fly tissue. M. Shane Hutson, the project’s lead researcher, said the work has led him to a greater appreciation of the role that a variety of molecules in tissue may play in the process. “The overwhelming majority of previous research focused on simpler model systems,” he said. He explained that living...Read full articleRelated content from Photonics MediaARTICLESRefined Laser Systems Raises $2.9M for Rapid Cancer DiagnosticsBiophotonics technology company and University of Münster spinout Refined Laser Systems has raised €2.7 million ($2.9 million) to develop a prototype intraoperative microscope that the...BioPhotonics Mar/Apr 2023 IssueLaser Endomicroscopy Enables Real-time Detection of Lung CancerResearchers at the Abramson Cancer Center at the University of Pennsylvania have developed a method to detect lung cancer at the cellular level in real time during biopsy. The method ensures earlier...BioPhotonics Jul/Aug 2022 IssueLaser-irradiated Coating Augments Nonsurgical Treatment of ObesityA multi-institutional research team in South Korea has enhanced the existing functionality of appetite-suppressing implants in the stomach with photodynamic therapy, coating such an implant with...BioPhotonics Jul/Aug 2022 IssueLaser-Matter Interaction Improves Nanostructure FabricationRecent progress in the fabrication of nanostructures has led to their application in numerous fields, including materials engineering, environmental remediation, biomedicine, and more. In particular,...Photonics Spectra January 2023 IssuePRODUCTSVoice Coil Servo MotorThe HVCM-051-038-019-01 direct-current voice coil servo motor from Moticont is an open aperture linear motor featuring a 2.25-in. stroke. The device has a continuous force rating of 4.2 lbs and...Photonics.com 1/7/2022Linear Voice Coil ActuatorThe GVCM-019-016-02 Linear Voice Coil Actuator from Moticont is a small, 0.75-in. diameter actuator and electric cylinder with a force to size ratio of 7.4-oz continuous force, 23.7-oz peak force,...Photonics.com 5/12/2021Linear Positioning StageThe LMS-XY linear positioning stage from Bold Laser Automation Inc. is an industrialized aluminum device suited for high-volume, high-speed precision ablation and cutting applications. The...Photonics.com 12/2/2021OCT VCSELThe Caliper-HERO vertical-cavity surface-emitting laser (VCSEL) from Octlight ApS is a scalable solution for 3D optical coherent tomography (OCT) imaging. With single-mode wavelength tuning,...EuroPhotonics Summer 2021 IssuePHOTONICS HANDBOOK ARTICLESLasers: 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 HandbookThe VCSEL Advantage: Increased Power, Efficiency Bring New Applications: Vertical-cavity surface-emitting lasers (VCSELs) differ from edge-emitting lasers in that their output beam is perpendicular to the top surface of the device instead of parallel to it.Unlike an edge emitter, a VCSEL has a maximum operating power that is not limited by catastrophic optical damage of the exit aperture because its aperture is larger and its PN junction does not...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 HandbookCO2 Lasers: The Industrial Workhorse: Four decades ago, the first industrial use of lasers was for drilling through diamonds or wire draw dies. From that beginning the laser has become an integral part of the conventional technology in many production plants. In the forefront of that revolution has been the CO2 laser, today a varied and sophisticated tool.In the three decades since its introduction, the CO2 laser has become the workhorse of industrial lasers. Today it is available in a range of designs and sizes with output powers of 20 kW and more....Photonics HandbookWHITEPAPERSSub 50 Femtosecond Pulse Lasers for Gentler Multiphoton MicroscopyFinding the ideal ultra-fast laser source for a multiphoton imaging setup is not trivial. It is a fine balance between peak power, pulse energy and laser wavelength. In this white paper we show that...Photonics.com 12/8/20223D Laser Triangulation: Bringing Depth to Machine Vision3D vision is going mainstream — and that’s a good thing. Advances in technology and reduced costs now make 3D vision a technology that can be applied to all sorts of applications and industries. 3D...Photonics.com 11/5/2021Compact, Self-contained Pulsed Lasers Expand Capabilities in LIBS ApplicationsLIBS analysis is now being adopted as an attractive technique in a wide range of industrial applications: from sorting recycled metals to identifying future mining areas. In this white paper, we...Photonics.com 12/10/2021Dynamic Beam Lasers: Redefining Flexibility in Material ProcessingNeed to laser weld thick materials, asymmetric parts, dissimilar materials, or coated metals? Are spatter, cracking, or porosity defects impacting your weld quality? Learn how dynamic beam shaping...Photonics.com 3/15/2022WEBINARSBest Practices: How to Achieve the Most Accurate Laser Energy MeasurementsMeasuring a pulsed laser is complex. Besides power, you also need to worry about pulse energy, frequency, and pulse width (duration). If you need to measure laser pulse energies — perhaps to...Photonics.com 5/15/2018Multi-Line Lasers or Laser Combiners: What Solution Is Best for Fluorescence Imaging?Fluorescence imaging is a key technique in both biomedical research and clinical diagnosis. Fluorescence-based microscopy for high-resolution and high-throughput multifluorophore imaging typically...Photonics.com 6/17/2021Computational Microscopy, Sensing and Diagnostics for Telemedicine and Global Health ApplicationsAdditional Questions and Answers from the Webinar are below: With more than 6 billion cell phone users in the world, the majority of them in developing countries, there are opportunities for...Photonics.com 6/5/2013Setting Up a Simple and Cost-Efficient Two-Photon Microscope for NeuroscienceIn this webinar, Max Eisele, Ph.D., will give an introduction to two-photon microscopy and highlight the potential of multiphoton excitation as compared to the standard fluorescence microscopy...Photonics.com 10/14/2020PHOTONICS DICTIONARY TERMSisotopically selected laser spectroscopyA spectroscopic technique in which an excitation band absorbs laser energy resulting in an electronic transition. The isotopic species may then be measured using a time of flight mass spectrometer....EDU.photonics.com 3/5/2018prelasingWhen uncontrolled laser energy leaks from a laser cavity prematurely, it causes serious damage to optical components and significant downtime for repair.EDU.photonics.com 9/8/2009superelastic collisionObserved phenomenon in laser pulses in which a large number of excited electrons are created and in which multiphoton processes have produced seed electrons, and excited neutral atoms are...EDU.photonics.com 9/8/2009laser rangefinder (LRF)An electro-optical instrument used to measure the distance to a target by determining the time required for a pulse of laser energy to travel to the target, reflect from it and return. Typically a...EDU.photonics.com 9/8/2009MEDIALasers for Neuroscience - Toptica Photonics2-photon fluorescence microscopy has become a key technology in biological imaging in neuroscience enabling three-dimensional, noninvasive studies of the neuronal structure and activity on the...Photonics.com 3/4/2022Laser Power Measurement System - LabsphereLabsphere’s Pulsed Laser Power Measurement Systems assure an accurate, reproducible method of determining the total power from a collimated or divergent laser or laser diode.Photonics.com 3/22/2022Telecentric Lenses - Shanghai OpticsTelecentric Lenses are widely used in metrology instruments, laser marking systems, and AOI (Automatic Optical Inspection) machines. Here’s a 360 view of one of our custom Telecentric Lenses which...Photonics.com 12/6/2022BWT- Brand Upgrade VideoNew start, new image BWT provides you with unchanging high-quality products and services. We are committed to becoming a global leader in laser solutions, let the dream drive the light, and inspire...Photonics.com 10/12/2021PHOTONICS BUYERS' GUIDE CATEGORIESBioluminescence EquipmentSupercontinuum LasersRadiography EquipmentBiostimulation Laser SystemsCOMPANIESOZ 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' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOhara Corporation, Western OfficeOhara manufactures precision optical glasses: strip/slab, cut/molded blanks, pressings, high homogeneity blanks, fine gobs, polished ball lenses, near-UV transmitting i-Line glass, ceramic...Photonics Buyers' GuideCASTECH INC.CASTECH is a recognized leading supplier of nonlinear optical crystals, laser crystals and precision optical components for laser, telecom, medical, analysis and detector markets. Products...Photonics Buyers' Guide