Daniel C. McCarthyLaser-induced native fluorescence detection in capillary electrophoresis has opened new applications and areas of research, but the technology has been forced to rely on either mainframe lasers or frequency-doubled Ar-ion or Kr-ion lasers. Although effective, these lasers can cost tens of thousands...Read full articleRelated content from Photonics MediaARTICLESMIR Spectroscopy Could Be Used to Detect Airborne ToxicantsScientists have discovered a way to detect trace amounts of chemicals in the air by using an IR laser to identify the unique frequency of individual molecules. The technique is sensitive enough to...Photonics Spectra June 2018 IssueSpectroscopy Technique May Lead to Ways to Convert Carbon Dioxide to Clean FuelOptical spectroscopy is being applied by a team at the University of Liverpool to better understand electrocatalysis, a phenomenon that could enable more efficient conversion of waste products, like...Photonics Spectra February 2019 IssueResearchers Attain Largest Entangled Quantum Register to DateA controlled multiparticle entanglement in a system of 20 quantum bits has been achieved by a research team at the Institute of Quantum Optics and Quantum Information (IQOQI) in Innsbruck, together...Photonics Spectra June 2018 IssuePhysicists Identify Optimum Conditions for Laser Plasma AccelerationLaser plasma acceleration, which has a smaller footprint and higher peak currents than conventional electron accelerators, could be the basis for the next generation of compact light sources. To make...Photonics Spectra January 2018 IssuePRODUCTSTunable Laser SourceThe TSL-770 high-speed tunable laser source from Santec Corp. delivers upgrades in speed, accuracy and range. A proprietary resonator design enhances Q value and wavelength stability, opening...Photonics Spectra July 2017 IssueOptical Monitoring SystemThe SpectraLock Optical Monitoring System from Eddy Co. provides in situ monitoring and deposition rate control to produce single- and multilayered thin films with exact accuracy without iteration or...Photonics Spectra December 2018 IssuePowerful Femtosecond Fiber LasersThe FemtoFiber ultra series is TOPTICA's third generation of ultrafast fiber lasers. These lasers provide powerful femtosecond pulses with a ultra-high reliability. The systems use SESAM-mode locked...Promoted Content July 2017 IssueDirect Diode Laser EngineThe DirectProcess 900 direct diode laser engine from II-VI Inc. is now available with 1-kW continuous output power and network interfaces for Industry 4.0. II-VI’s DirectProcess 900...Photonics Spectra July 2018 IssueMEDIACapasso Group Embeds, Projects Independent Images on MetasurfaceMembers of the Capasso Group at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have successfully encoded multiple holographic images in a metasurface. The separate...Photonics.com 8/9/2018Tech Transfer Programs Bridge Gap Between Industry and ResearchTechnology Transfer Programs are often a concerted effort to share skills, knowledge, technologies, methods of manufacturing, samples of manufacturing, and facilities among governments or...Photonics.com 6/19/2018Capasso Group's Optical Harmonic Combs Could Operate as THz SourceResearchers at Harvard's John A. Paulson School of Engineering and Applied Sciences (SEAS) have discovered a new phenomenon of quantum cascade laser frequency combs, which would allow the devices to...Photonics.com 8/10/2018Light Tomorrow with TodayLuminate NY, the only optics, photonics and imaging (OPI) accelerator and investment fund in the world, announced the final winners at the Light Tomorrow with Today event in Rochester, NY. For the...Photonics.com 7/2/2018WHITEPAPERSQuantitative Laser Raman Spectroscopy of GasesLaser Raman spectroscopy is a powerful analytical technique that is used in a variety of applications for the compositional analysis of solid, liquid and gaseous samples. This whitepaper looks at...Photonics.com 3/16/2017Using Newport 1936-R/2936-R Power Meters for Low-Power, Pulsed or Modulated Light SourcesRecent advancements in photonics technologies have broadened their applications into many different areas. An increasingly larger number of complex and diverse forms of light sources are designed...Photonics.com 6/1/2017How Laser Quantum Measures and Reports Root Mean Square (RMS) % Noise ValueOne of Laser Quantum’s goals has always been to create lasers with the lowest possible noise. Intracavity frequency-doubled lasers have an inherent noise of about 3% RMS. Several techniques have been...Photonics.com 1/16/2019How to Fail Fast and Smart During the Optical Product Design ProcessFailure is an inevitable part of the product development process, because you have to explore all the ways a design won’t work to find the way it will work. When you’re in a situation that demands...Photonics.com 4/3/2018WEBINARSFiberguide RARe Motheye Fiber: Random Anti-Reflective (RARe) Nanostructures on Optical Fibers as Replacement for AR CoatingsAnti-reflective (AR) coatings are now entering their second century and have remained virtually unchanged throughout their life. As power level and wavelength range requirements continue to increase,...Photonics.com 1/18/2018Flat Optics Based on Metasurfaces: Molding Wavefronts and Surface WavesMetasurfaces based on subwavelength patterning have major potential for realizing arbitrary control of the wavefront of diffracted light by achieving local control of the phase amplitude and...Photonics.com 2/26/2015Laser Transmitters for Fiber Optic CommunicationsFREE WEBINAR Dr. Hamid Hemmati Supervisor, Optical Communications Group Jet Propulsion Laboratory California Institute of Technology In this talk, Dr. Hemmati will cover...Photonics.com 3/28/2013By a Stretch: Making Femtosecond Laser Design and Manufacturing Simpler, Leaner and CheaperNext-gen ultrafast lasers will be cheap, compact, robust and versatile. How does your laser measure up? This webinar will discuss challenges in femtosecond laser design and manufacturing, such as...Photonics.com 1/23/2018PHOTONICS DICTIONARY TERMSscribingThe process of perforating a silicon or ceramic substrate with a series of tiny holes along which it will break. Nd:YAG or CO2 lasers are now routinely used.EDU.photonics.com 9/8/2009quantum cascade laserA Quantum Cascade Laser (QCL) is a type of semiconductor laser that emits light in the mid- to far-infrared portion of the electromagnetic spectrum. Quantum cascade lasers offer many benefits: They...EDU.photonics.com 3/5/2018metal vapor laserDevices in which the lasing medium is a vapor of metal atoms or ions, sometimes mixed with another gas. Metal vapor lasers use a variety of metal types to generate a variety of laser lines for...EDU.photonics.com 2/15/2013recombination radiationThe radiation emitted in semiconductors when electrons in the conduction band recombine with holes in the valence band. If population inversion occurs between portions of the valence and conduction...EDU.photonics.com 9/8/2009PHOTONICS HANDBOOK ARTICLESLaser Safety: Important Considerations: Laser safety is nothing to scoff at; lasers can be hazardous. Enter Class 1 laser products — lasers that are so safe that the user doesn’t require specific laser safety training or protective eyewear. Some precautions still exist, though.When purchasing an industrial laser system, the astute buyer will look for a Class 1 laser product — a system where the laser beam hazard is completely enclosed and there is no potential laser...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 HandbookSemiconductor Lasers: An Overview of Commercial Devices: Within only a few decades, the semiconductor laser diode has evolved into a family of robust, reliable devices, with individual conversion efficiencies of better than 60 percent, continuous output powers of several kilowatts, modulation rates of several tens of gigahertz, and wavelengths from 0.4 to beyond 2 µm. This article discusses the structures and characteristics of the most common commercial varieties.Laser diodes vary widely in their wavelengths, powers, spectra and beam quality. Yet they share two fundamental components with all other lasers: an optical amplifier and a resonator that confines...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.Almost 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...Photonics HandbookPHOTONICS BUYERS' GUIDE CATEGORIESVertical-Cavity Surface-Emitting Lasers (VCSELs)Orthopedic Laser SystemsBeam Measurement EquipmentReconnaissance Laser SystemsCOMPANIESNational Laser CompanyNational Laser is the leading U.S. manufacturing plant of argon lasers and the foremost integrator of customized laser and opto-electronic systems for Original Equipment Manufacturers. We’ve...Photonics Buyers' GuideElectro-Optics Technology Inc.EOT – the leader in optical isolators for high power lasers Electro-Optics Technology has been supplying enabling components and diagnostic equipment worldwide for manufacturers and users...Photonics Buyers' GuideLaser Quantum Ltd.Laser Quantum is a world-class manufacturer of revolutionary solid-state and ultrafast lasers. Our products lead the industry in performance specifications, reliability, compactness and operational...Photonics Buyers' GuidePhotodigm Inc.Photodigm DBR lasers are precisely fabricated to deliver single frequency, single mode output in the near-IR spectral band from 740 nm to 1100 nm. With a narrow bandwidth of less than 1 MHz,...Photonics Buyers' Guide