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Waveguide Designs Bring Extended Reality into Sight
Here is something David Goldman, vice president of marketing for Lumus, never expected to come into the field of view of waveguides: Wine growers using augmented reality (AR) glasses to teach unskilled labor workers exactly where to prune grape vines, leading to productivity gains of up to fivefold. Though the adoption of AR glasses in this enterprise application and others is worthy of a toast, the technology still has a long road to broad consumer adoption. Alluding to the Gartner Hype Cycle,...
Photonics Spectra, January 2024
Welding Disparate Materials Bridges the Gap in Modern Engineering
Laser welding finds its place in fields such as electromobility (e-mobility), aerospace, ship and rail transport, construction, the energy sector, semiconductor, consumer electronics, medical device manufacturing, and others. Its flexibility and...
Photonics Spectra, January 2024
Terahertz Radiation Boosts Quality Control from Aerospace to Pharma
Contact-free thickness measurements are increasingly important in industrial process monitoring and quality control. In the automotive and aviation industries, the exact thickness of paint and coating layers not only affects the overall appearance...
Photonics Spectra, December 2023
New Technology Quantifies Optics’ Elusive Mid-Spatial Frequencies
New polishing technologies caused a significant shift in optical manufacturing during the start of the 21st century. Computer numerical control (CNC) and deterministic optical polishing/figuring techniques have taken center stage to transform how...
Photonics Spectra, December 2023
Quantum Is Growing But Remains a Niche Market
October is beautiful in Munich. Hotel room prices relax after the end of Oktoberfest and local parks display autumn colors while the weather is still pleasant. Such was the setting when EPIC held its recent technology meeting on Industrial Quantum...
Photonics Spectra, December 2023
Ultrafast Imaging Sprouts New Applications in the Life Sciences
Lurking among coral reefs, the snapping shrimp grows to be only ~3 cm, but it wields one of the most powerful claws under the sea. The creature’s claw can shut so quickly that it fires out a jet of water, generating a bubble that collapses to...
Photonics Spectra, December 2023
New Supercontinuum Generation Sources Put Handheld Devices Within Reach
A figure-of-nine femtosecond fiber laser seeds a novel dispersion patterned chip to enable compact, low-power supercontinuum generation. The new technology could support more portable supercontinuum sources for sensing, ranging, and imaging...
Photonics Spectra, November 2023
Spectroscopy Helps Unravel the Mysteries of Methane Emissions
In 2020, the world slammed to a halt. Flights were grounded. Cars remained parked in driveways. Smokestacks were extinguished, and industrial projects were put on hold as billions of people were confined to their homes. All the usual suspects of...
Photonics Spectra, November 2023
Automotive Lighting Turns a Corner
Studies cited by the Independent Institute for Highway Safety (IIHS) show that using automatic switching on old-fashioned high beams whenever possible reduces nighttime automotive crashes with animals, pedestrians, and unlit bicycles or cars by 26%....
Photonics Spectra, November 2023
The Path to Practical Attosecond Sources Is Getting Shorter
Attosecond photonics allows for deep insights into material dynamics on ultrashort timescales and at nanometer resolutions. Because the attosecond is the natural timescale of electron motion within atoms, molecules, and solids, the applications for...
Photonics Spectra, November 2023
Berthold Leibinger Awards Honor Laser Research at the Limits
In 2000, Berthold Leibinger, the man who brought laser technology into Germany’s TRUMPF Group, established the Innovation Award — expressed in native German as the “Innovationspreis” — to honor outstanding R&D in...
Photonics Spectra, October 2023
How AI Is Advancing the Manufacture of Photonic Systems
Many trends in the manufacture of photonic systems are well known: miniaturize and integrate components, scale-up batch sizes, and, increasingly, expand automated and sustainable manufacturing. At the same time, quality control remains a priority...
Photonics Spectra, October 2023
Spectroscopy Rides a Rising Tide of Water-Monitoring Applications
In 2018, when California became the first state to pass legislation requiring the measuring of microplastics in drinking water supplies, it essentially set off a competition that would pit photonic technologies against one another as well as...
Photonics Spectra, October 2023
How Materials Advancements Advance Our View of the Cosmos
It is strange that the study of materials has been intertwined with the study of our universe. Somewhat paradoxically, improving our grasp of atoms has enabled us to answer questions about the cosmos. Although humanity has always looked to the stars...
Photonics Spectra, October 2023
Five Common Design Mistakes Can Send PIC Packaging Costs Skyrocketing
We have all heard that photonic integrated circuits (PICs) can pack a ton of functionality into high-performance, energy-efficient, and low-cost microchips, as well as the promise that they will enable a revolution of powerful optoelectronic devices...
Photonics Spectra, September 2023
Ultrashort-Pulsed Lasers Ramp Up the Power
If lasers helped to redefine many manufacturing operations, then ultrashort-pulsed (USP) lasers promise to revolutionize them. They can process almost any material, and they can do so with a precision that extends below micrometers. This advantage...
Photonics Spectra, September 2023
How to Preserve Your Laser Optics Against UV Degradation
Ultraviolet laser optics tend to have limited lifetimes, due primarily to two processes: laser-induced contamination (LIC) and UV fatigue. LIC is caused by the deposition of unwanted material on the surface of the optic, whereas UV fatigue results...
Photonics Spectra, September 2023
Chalcogenide Glass Sharpens the Outlook for Infrared Imaging
Chalcogenide glasses — more commonly known as chalcogenides — have been around for some time and offer several benefits over other IR optical materials. They are comparatively lightweight, offer excellent thermal properties, and can be precisely...
Photonics Spectra, September 2023
Manufacturing Methods Make Freeform Optics More Accessible
From applications in ophthalmology, endoscopy, and microscopy — to use in head-up displays, lidar systems, unmanned aerial vehicles, and satellites — freeform optics are enhancing the performance of existing imaging systems and are key...
Photonics Spectra, September 2023
What Is the Quantum Internet?
The internet is an inescapable part of modern life, and the hardware that enables it is almost as ubiquitous. Fiber cables transmit terabytes of data around the world every second and, although the technology is constantly evolving, it has become...
Photonics Spectra, August 2023
Ultrafast Laser Technology Continues to Achieve New Peaks
Ultrashort pulse lasers, such as femtosecond lasers, are becoming increasingly easy-to-use plug and play devices suitable for a wide range of industrial and biomedical applications. Fifteen years ago, these lasers were large mainframe affairs...
Photonics Spectra, August 2023
Optical Workforce Training Comes into Focus
Ten years ago, Tony Amarel’s recruitment firm in Rochester, New York, rarely heard from clients who were willing to pay a fee to fill optical technician positions. But by 2021, the six-county Rochester metropolitan area saw the number of jobs...
Photonics Spectra, August 2023
Hyperspectral Imaging Boosts Yields in Vertical Farming
Vertical farming, also known as sky farming, is the practice of growing food crops in vertically stacked layers in controlled indoor spaces using soilless hydroponic or aeroponic growing methods. Vertical farming does not replace conventional...
Photonics Spectra, July 2023
The Path to Secondary Sources
The laser is a versatile tool for many applications partly due to its capacity to generate harmonic wavelengths in which, for example, two red photons combine to generate a blue photon. But with the advent of ultrashort laser pulses, processes were...
Photonics Spectra, July 2023
Ultrafast Lasers Sharpen the Success of Physical Failure Analysis
In recent years, lasers have made significant inroads into analytical applications, such as semiconductor test and analysis. They are now incorporated into analytical instruments, for example, to detach single atoms from a tiny tip, or to measure a...
Photonics Spectra, July 2023
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