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Joel Williams
Photonics Media

Joel WilliamsJoel Williams began his career in community journalism. As news editor at Photonics Media, he is a key contributor to our online news coverage and regularly contributes content to all three magazines and the "All Things Photonics" podcast.

joel.williams@photonics.com

Articles
By Joel Williams

November 2025
Working Group to Push AR Laser Displays Toward Commercialization
Impending augmented reality (AR) display solutions largely rely on micro-LED technologies to help create the images that users see in the specialized lenses of AR systems. Now, the recently...
October 2025
Pensievision's 3D Imaging Tech Shines at Luminate Finals
Pensievision, a creator of 3D imaging technology for industrial applications and medical devices, received the Company of the Year Award at the Luminate NY Finals 2025, held this week in Rochester....
September 2025
Uncertainty Casts a Shadow over 2025 SPIE Photonics Industry Summit
Industry leaders, policymakers, and appointed officials convened last week for the annual SPIE Photonics Industry Summit. Now in its fourth year, the one-day event again offered glimpses into U.S....
June 2025
Partners Lay Groundwork for Scalable Quantum Integrated Photonics
Aeluma, in collaboration with Thorlabs, has demonstrated wafer-scale integration of the nonlinear optical material aluminum gallium arsenide (AlGaAs) onto CMOS silicon photonics-standard 200-mm...
March 2025
Two Switches to Open the Door to a Golden Age of Silicon Photonics
NVIDIA’s planned commercialization of its Spectrum-X (Ethernet) and Quantum-X (InfiniBand) photonic switches signals a shift in the industry’s copper bedrock. According to...
September 2024
SPIE Industry Summit Spotlights Policy Priorities, Business Development
SPIE held its third Photonics Industry Summit in Washington, D.C. last week, convening photonics industry leaders with policymakers and officials from government agencies. The event offered a window...
July 2024
TRUMPF and SiMa.ai Partner on AI Lasers
TRUMPF has partnered with machine learning system-on-chip developer SiMa.ai to equip TRUMPF laser systems with AI technology, focusing on the acceleration of complex materials processing. This will...
July 2024
New and Improved Skipper CCDs Count Photons from Distant Galaxies
Using an instrument on the 4.1-meter Southern Astrophysical Research Telescope, researchers obtained the first astronomical spectrum using skipper charge-coupled devices (CCDs). Originally envisioned...
July 2024
PhotonDelta Expands to U.S. with California Office
Netherlands-based photonic chip accelerator PhotonDelta has opened an office in California with the goal of growing the photonic chip industry by facilitating collaboration between European and North...
May 2024
Partnership Develops Polymer Slot Modulators for Data Centers
Optical communications technology company Lightwave Logic has launched a collaboration with Advanced Micro Foundry (AMF) to develop polymer slot modulators utilizing AMF's silicon photonics platform....
March 2024
Metalens Coalition Details Manufacturing Benefits
Representatives from the Massachusetts Technology Collaborative (MassTech), the University of Massachusetts Amherst (UMass Amherst), and Electro Magnetic Applications (EMA) gathered Wednesday at...
February 2024
Lithuania Unveils Silicon Valley Innovation Hub
Innovation Hub Lithuania (InnoHub Lithuania), a Silicon Valley site designed to serve as an economic bridge between high technology Lithuanian companies and research institutes with American...
January 2024
Enlightra, DESY Hamburg Develop Improved, Scalable Comb Lasers
Laser technology startup Enlightra has collaborated with DESY Hamburg to develop comb lasers that are more stable and efficient by design. The work demonstrated microresonators with programmable...
January 2024
Excelitas to Relocate Headquarters to Pennsylvania
Global photonics company Excelitas Technologies will relocate its operations to Pittsburgh, moving from its current headquarters in Waltham, Mass., outside of Boston. The company plans to complete...
November 2023
Coherent Looks to Root Recovery in AI, Datacom, and Display Tech
Coherent posted its first-quarter financial results for fiscal year 2024, posting $1.05 billion in revenue, representing a decrease of 13% sequentially and 22% year-over-year. The results, Coherent...
November 2023
Cognex Sales Lag as Recent Acquisition Broadens Customer Base
Cognex continues to feel the effects of soft demand for capital equipment, the machine vision industry leader said this week, as the company released financial results for its 2023 third quarter. The...
September 2023
Oculi’s Smart Sensors Earn Top Prize at Luminate 2023
Oculi, developer of a smart, programmable vision sensor, took home $1 million in follow-on funding and Company of the Year honors as the winner of Luminate’s sixth cohort. Awardees, including a...
June 2023
Line-Scan Cameras Facilitate Increasingly Higher Throughput
In their most basic form, line-scan cameras have a single row of pixels. To capture an image, the object being imaged must be moving at a known speed. An encoder provides a feedback signal from a...
May 2023
Liquid Instruments Adds ChatGPT to Moku Devices
Liquid Instruments, a developer of test and measurement solutions including software-reconfigurable hardware platforms, has integrated the ChatGPT language model into its Moku family of products....
May 2023
Argonne Quantum Foundry to Support Scalable Tech, Future Workforce
Argonne National Laboratory has opened its Quantum Foundry, part of the U.S. Department of Energy’s (DOE) drive to accelerate advancements in quantum information science. The Argonne Quantum...
May 2023
Imagia Raises $4.5M, Targets Visible Light Applications
Metalens technology startup Imagia has closed a $4.5 million seed round. The funding will be used to accelerate development and initial commercial deployment of the company’s first generation...
May 2023
Upgrades Underway to Argonne’s Advanced Photon Source
Argonne National Laboratories’ Advanced Photon Source (APS) has begun its long-scheduled comprehensive upgrade. The process will see the electron storage ring at the heart of the facility...
April 2023
Dark Autoionizing States Enhance EUV Laser Power
Researchers led by Tsuneyuki Ozaki and François Légaré at the Institut national de la recherche scientifique (INRS) in Quebec have developed a method that could bring extreme...
April 2023
Diffractive Optical Network Enables Snapshot Multispectral Imaging
UCLA researchers led by Aydogan Ozcan and Mona Jarrahi have developed a multispectral imaging technology capable of turning a monochrome sensor into a multispectral one. Rather than the traditional...
April 2023
Ultrafast Beam-Steering Achieved for Incoherent Light
A research team at Sandia National Laboratories has demonstrated a technique that dynamically steers light pulses from conventional incoherent light sources. The ability to control incoherent light...
April 2023
On-Chip Supercontinuum Laser Holds Promise in Portability
An ultra-efficient on-chip supercontinuum laser developed by researchers at the University of Twente is poised to enable applications ranging from portable medical imaging devices to chemical sensing...
March 2023
Topology-Based Fiber Ensures Robust Performance Amid Distortions
Researchers at the University of Bath fabricated optical fiber that hosts topological supermodes across multiple light-guiding cores. The topological protection of the fibers prevents changes to the...
March 2023
Method Measures Electron Dynamics in Semiconductor Materials
The properties and performance of semiconductor chips powering modern technologies are ultimately determined by free electrons. With the continued miniaturization of electronic and photonic devices,...
February 2023
Laser Method Boosts Accuracy of Blood Flow Measurements in Feet
Researchers from Aston University have developed a method to improve the accuracy of blood flow measurements in the feet of patients with Type 2 diabetes. The laser-based technique improves accuracy...
February 2023
Supermode Optical Resonator Moves Beyond Conventional Cavities
Researchers in the lab of Federico Capasso at Harvard University’s School of Engineering and Applied Sciences (SEAS) have developed a supermode optical resonator. The technology could have...
January 2023
Laser Method Drills Taper-, Crack-Free Holes in Glass
Researchers from the Institute of Intense Lasers and Applications (CELIA) at the University of Bordeaux have developed a glass micro-drilling method using a femtosecond laser operating in...
January 2023
Dell, Panasonic Deploy Synaptics’ AI Software for Human Presence Detection
Computer makers Dell and Panasonic have deployed Synaptics’ Emza Visual Sense AI technology, which enables human presence detection (HPD), in mobile PC units that the companies are now...
January 2023
JUMP 2.0 Consortium Targets Innovations in Microelectronics
Semiconductor Research Corp. (SRC), along with the Defense Advanced Research Projects Agency (DARPA) and industry and academic stakeholders, has established the Joint University Microelectronics...
January 2023
Beam Profiling Evolves to Keep Lasers in Line with New Applications
Lasers provide many different industries with greater efficiency, less waste, and higher precision, but they are not always as easy to fix as the machines they replace. A blunted drill bit is easier...
September 2022
Webb’s Exoplanet Observations Demonstrate Telescope's Strengths
In two groundbreaking firsts, NASA’s James Webb Space Telescope captured a direct image of an exoplanet, or a planet outside our solar system, as well as the first clear evidence for carbon...
July 2022
The Second Quantum Revolution Needs Reinforcements
The infancy of the second quantum revolution is upon us. A century of studying and modeling of quantum mechanics defined the first revolution. But today we are exploiting those mechanics with...
April 2022
Metasurface Tech Enables Polarization Imaging on Almost Any Camera
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a metasurface attachment that can turn almost any camera or imaging system, even...
March 2022
Transparent Chip Provides View to Multimodal Imaging
A transparent, biocompatible ultrasound transducer chip developed by researchers from Penn State is opening opportunities in cell and tissue stimulation and multimodal imaging. The chip, called a...
February 2022
Kinetic River Advances Compensation-Free Flow Cytometry
Kinetic River Corp. reported that it has advanced its Arno technology for time-resolved cell analysis, developing technology that enables compensation-free, 12-marker flow cytometry assays with just...
February 2022
Fusion Splicing Achieves Low Loss in Spacing-Mismatched Multicore Fibers
Researchers at Fudan University demonstrated low-loss fusion splicing techniques between spacing-mismatched multicore fibers (MCFs). According to the researchers, the work builds on previous studies...
January 2022
Metalenz Demonstrates Chip-Scale Polarization Imaging
Meta-optics company Metalenz has unveiled a polarization-based optical technology called PolarEyes. The technology, which is not yet commercially available, takes the capabilities of bulky...
November 2021
Ptychography Technique Raises Imaging Throughput
A resolution-enhanced parallel-coded ptychography technique developed by researchers at the University of Connecticut has achieved the highest numerical aperture and throughput to date, compared to...
October 2021
PreAct Technologies Awarded Top Prize at Luminate Finals 2021
PreAct Technologies, an Ore.-based developer of intelligent sensing technology designed to bridge the gap between collision avoidance and active safety, earned the top prize in the fourth cohort of...
September 2021
Luminate Finalists Set Sights on $2M, Breakthrough Photonics Solutions
Ten startups from around the world will gather virtually to compete for up to $2 million in follow-on funding from Empire State Development’s Finger Lakes Forward Upstate Revitalization...
August 2021
Theoretical Advancement Enables Unprecedented Wave Control
Cornell researchers have proposed a new way to modulate the absorptive and the refractive qualities of metamaterials in real time, and their findings open new opportunities to control, in time and...
July 2021
Yale Team Produces Memory from Speckle Patterns
Researchers at Yale University have developed a way to significantly increase the memory of speckle patterns, the very complex patterns that result from shining a laser light onto an opaque sheet,...
July 2021
Lens-Free Fluorescence Microscope to Achieve High Throughput, Resolution
A fluorescence microscope being developed by imec researchers will be able to achieve high throughput and high resolution, without a lens component. The technology could significantly speed up...
June 2021
Storage Life Extended for Room-Temperature Qubits
Researchers at the University of Copenhagen have demonstrated a method for storing qubits at room temperature for a duration that is hundreds of times longer than has been achieved with previous...
June 2021
Quantum Microscope Examines Cells in Unprecedented Detail
A quantum microscope developed at the University of Queensland can resolve cellular structures that would otherwise be impossible to see. The technology overcomes a significant barrier to furthering...
June 2021
Optical Element Could Enable Pocket Telescope
A novel optical element will one day enable composite lenses and telescopes in a form factor small enough to fit in a pocket. The device, developed by Orad Reshef and Jeff Lundeen of the University...
June 2021
Extremely Bright Quantum Emitter Self-Heals
A new approach to synthesizing quantum dots has significantly increased their use value, according to members of an international research collaboration. The method, called spray-synthesis, was...
June 2021
Brimrose to Develop Sophisticated Sensing Instrument for NASA
NASA has selected Brimrose Technology Corporation (BTC) to provide a sophisticated sensing technology to search for materials on the moons and planets of our solar system. The winning proposal is for...
June 2021
Laser Experiment Shows Role of Memory in Stochastic Resonance
A laser experiment conducted by scientists at AMOLF (part of the Netherlands Organisation for Scientific Research) has enhanced understanding of the role of memory in stochastic resonance. ...
May 2021
CEA-Leti Unveils Autonomous Imager
CEA-Leti has unveiled an autonomous imager technology that is able to activate smartphones and small appliances through facial recognition or other specific patterns, using 10,000× less power...
May 2021
Modified Antibodies Boost Photodynamic Therapy’s Efficacy
Adding antibodies to photodynamic therapies can bolster their efficacy, according to research conducted by Texas A&M University and the University of São Paulo. The work reviewed the...
May 2021
Ultrasensitive Detector Enables Lidar to Look Farther
A light sensor developed by the University of Texas at Austin (UT Austin) and the University of Virginia is able to amplify weak signals from far away with greater accuracy than current technology,...
May 2021
Graphene-Based Josephson Junction Enables Single-Photon Detection
Researchers at Raytheon BBN Technologies developed a method of single-photon detection based on a Josephson junction. The advancement, which is poised to spur development in sensor, communication,...
April 2021
Lidar-based AR Display Reveals Hidden Road Hazards
A lidar-based AR head-up display allows drivers to “see through” objects to alert of potential hazards without distraction. Researchers from the University of Cambridge, the University of...
April 2021
Optical System to Identify Preterm Labor Receives Patent
Jessica Ramella-Roman of Florida International University (FIU) received a patent for an optical technology designed to identify preterm labor. The patent is the culmination of years of research into...
April 2021
Single-Pixel Detector Classifies Images Using Diffractive Optical Network
A single-pixel machine vision framework leverages deep-learning designed optical networks to bypass the need for an image sensor-array or digital processor. The system, developed in the lab of UCLA...
April 2021
Laser Cools Antimatter to Near Absolute Zero
A custom-built laser has cooled antimatter to near absolute zero. The work, carried out by researchers with the CERN-based ALPHA collaboration, holds significant implications for the study of...
March 2021
Waveguide Design Enables Transmission of Two Types of Light
Engineers from Vanderbilt University developed a method of simultaneously transmitting two types of optical signals across a single chip. The work may enable a dramatic increases in the volume of...
March 2021
Features of Mantis Shrimp Eye Inspire Smaller Optical Sensor Design
The ultrasensitive eyes of mantis shrimp are the inspiration behind a new kind of optical sensor that is small enough to fit on a smartphone, yet capable of performing hyperspectral and polarimetric...
March 2021
Metalens Uses Heat Rather Than Motion to Shift Focus
A new metalens design developed by researchers at MIT, which is able to change its focus without tilting or moving forward or backward, may find use in miniature heat scopes for drones, ultracompact...
February 2021
Technique Aids in Copper Additive Manufacturing
Uppsala University researchers, in collaboration with graphene materials company Graphmatech, demonstrated a method for lowering the reflectivity of copper powder. The work could lead to more densely...
February 2021
Novel Photonic Chip Bridges Digital and Analog
Researchers from George Washington University (GWU) and UCLA developed and demonstrated a photonic digital-to-analog converter without leaving the optical domain. The technology has the potential to...
February 2021
Compact, Scalable Lidar Design Could Have Applications in Robotics, Health Care
Researchers from the University of Southampton, in collaboration with a team from San Francisco-based nanotechnology company PointCloud Inc., developed a scalable 3D lidar imaging system that the...
February 2021
Imaging Without Limit, on Demand
A team at Columbia University has introduced a way to program a layered crystal in such a way that it is able to open doors to imaging capabilities beyond common limits, on demand. The technique...
February 2021
Startup Expects to Bring Metalens Technology to Commercial Market in 2022
Metalenz, the Harvard University-originating startup that last week received exclusive license to flat-optics innovations developed in the lab of Federico Capasso, said that the long-awaited metalens...
February 2021
Image Recovery Method Improves Compressive Sensing, Phase Retrieval
Research from Lawrence Livermore National Laboratory (LLNL) has yielded a method of compressive image recovery that is trained on patches of images, rather than full-size images. The method, called...
January 2021
Chip-based Frequency Comb Sharpens Neural Networks
Through an international collaboration, researchers from the University of Münster have developed photonic processors that combine processing and data storage on a single chip. Led by...
December 2020
Nonlinear Beam Cleaning Developed for Mode-Locked Lasers
Researchers from École Polytechnique Fédérale de Lausanne (EPFL) have developed a method of nonlinear beam cleaning in a multimode laser cavity. The technique establishes a new...
December 2020
Raman Holography Has Implications for Live Cell, Tissue Interrogation
Researchers from the Institute of Photonic Sciences (ICFO) have successfully demonstrated holographic Raman microscopy. The technology is poised to support wide-ranging applications, from live cell...
November 2020
How Newton’s Prisms Fueled a Spectrum of Spectroscopy Techniques
According to BCC Research, the global market for spectroscopy equipment is on track to reach more than $16 billion by 2023. The market encompasses a variety of techniques, ranging from absorption to...
November 2020
Researchers Claim New Record in Quantum Light Detection
Researchers from the University of Bristol have claimed a new record for detecting squeezed light, using a newly developed balanced homodyne detector. The work could pave the way for...
November 2020
Researchers Devise Method to Observe Atomic Interactions, Quantum Mechanics
Researchers from Princeton University have formulated a method to control and measure atoms that are indistinguishable when observed with an optical lens. The work allows the researchers to observe...
November 2020
HD Vision Systems Voted Winner of VISION Start-up 2020
An all-virtual audience selected HD Vision Systems as the winner of the Vision Startup Pitch Session held Nov. 11. The Heidelberg, Germany-based company now qualifies to take part in the VISION...
November 2020
Infrared Spectroscopy Technique Unveils Insights into Planet Formation
Planetary scientists at Brown University have introduced an infrared spectroscopic method for studying olivine, a mineral that provides insights into the formation of the moon, Mars, and other...
November 2020
Capturing the Invisible with Upconversion Technology
New technology from researchers at Tel Aviv University has the potential to help cameras recognize colors that are invisible to the human eye. The development has potential to advance applications in...
November 2020
Scientists Publish Blueprints for Cheaper Single-Molecule Microscope
A team from the University of Sheffield has designed and built a single-molecule microscope for one-tenth the cost of commercially available models — and shared the build instructions to make...
November 2020
Wearable Sensor Could Increase Awareness of UV Exposure
A custom bio-ink developed by Clarkson University researchers could enable wearable sensors designed to increase the wearer’s awareness of UV exposure. Noting the prevalence of skin...
October 2020
Light Stored and Transported in a Cloud of Atoms
Researchers at Johannes Gutenberg University Mainz (JGU) successfully transported light stored in a quantum memory over a distance of 1.2 mm. The technology, once refined, could have implications for...
October 2020
Free-space Communication System Virtually Eliminates Receiver Noise
A laser-based space communication system developed by researchers at Chalmers University of Technology uses an almost noiseless preamplifier to improve reach and data rates for space communications....
September 2020
Seeing Through Joyce’s Eyes
If you want to eat an elephant, conventional advice says to start with the first bite. To build a robot equipped with superhuman vision, ImmerVision says to start with the head. Meet Joyce, a...
September 2020
Quantum Microscope Squeezes Out Noise
Researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory (ORNL) used quantum optics to advance state-of-the-art microscopy and, in doing so, chart a a path to detecting...
September 2020
Lidar System Delivers Vision Through Clouds and Fog
Using a single-photon avalanche diode that can detect the arrival times of photons down to a single photon, with precision in the tens of trillions of seconds, researchers at Stanford University have...
September 2020
OCT Offers High Speed, Strong Resolution in Retinal Imaging
Researchers at the University of Washington have modified the standard process of OCT (optical coherence tomography) to detect minute changes in response to light in individual photoreceptors in the...
September 2020
Infrared Spectroscopy Moves to the Fast Lane
Researchers at the University of Tokyo have developed a technique to drastically increase the speed of infrared spectroscopy. The technique, called time-stretch infrared spectroscopy, surpasses...
August 2020
Islam’s Golden Age Sparks a Spectrum of Optical Knowledge
The history of optics traces back to the primitive lenses of the ancient Egyptians and Mesopotamians, the rudimentary logical conjectures of the ancient Greek philosophers, and the simple geometrical...
May 2020
The evolving aesthetics of privacy
Cameras are everywhere. They are in our pockets, on our computers, on traffic lights, and on the sides of and inside buildings. Surveillance, for better or worse, is becoming a part of our everyday...
April 2020
Amphibians aglow
Until recently, the scientific world knew of only a handful of biofluorescent amphibians. Today, scientists are wondering whether all amphibians glow. Herpetologist Jennifer Lamb and...
March 2020
Photonics Market Feels Impacts of COVID-19 at Many Levels
With COVID-19 now declared a pandemic by the World Health Organization, and states of emergency declared around the globe, the photonics market is starting to feel the impacts of the virus —...
March 2020
A fishy line of sight
As if cuttlefish weren’t cute enough, a University of Minnesota (UMN) research team recently equipped 11 of them with specialized 3D glasses for use in an underwater theater built just for...
January 2020
STEVE, the enigmatic atmospheric phenomenon, explained (sort of)
“I propose we call it Steve,” said photographer Chris Ratzlaff in a 2016 post in a Facebook group for aurora chasers. Ratzlaff was referring to an atmospheric optical phenomenon...
October 2019
The Eyes Behind Surgical Robots
The first robotic surgery took place in 1985 when the PUMA 560 was used in a stereotaxic operation in which computed tomography (or x-ray) was used intraoperatively to guide a robot as it inserted a...

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