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The Rise of Micro-Optics Shows No Sign of Slowing
Micro-optics are a key enabler in the modern world, spurring advancements in consumer electronics, automotive lighting, and the next generation of autonomous vehicles. As demand grows from sectors far and wide, new fabrication approaches — some borrowed from the microchip industry — are allowing for faster and more economical production.
Photonics Spectra, January 2023
Photonics Brightens the Future for Augmented Reality
Out in the Gulf of Mexico, an offshore oil rig experiences a critical mechanical failure. The engineers with the expertise to fix the problem are back on the mainland, and flying them to the site on short notice would be costly and logistically...
Photonics Spectra, January 2023
Lasers Shape a New Future for Additive Manufacturing of Metal Parts
Aerospace and automotive manufacturers initially adopted additive manufacturing (AM) methods as a means to rapidly prototype new parts or to fabricate more complex or consolidated components in a single step. They applied additive manufacturing to...
Photonics Spectra, January 2023
Fused Silica: A Transparent Look at a Complex Material
Many users of fused silica may ask why there are so many different grades of the glass. How much variety can you expect from the simple chemical formula SiO2 — and does this wide variety have any effect on real-world optics? Despite fused...
Photonics Spectra, December 2022
Multispectral Photoacoustic Imaging Peers into Skin Disease
The earlier that skin diseases are detected, the greater the odds that a particular therapy will be effective and successful. Optical dermoscopy, today’s medical standard for achieving early detection, allows experienced dermatologists to reliably...
Photonics Spectra, December 2022
Tiny Quantum Dot Sensors Solve Big IR Application Problems
As a second quantum revolution begins, many mysteries remain in the quantum realm. Perhaps this is unsurprising given the notoriously confounding properties of this new frontier. However, as time passes, it seems increasingly likely that the...
Photonics Spectra, November 2022
New Sensors and AI Optimize Laser Welding
Welding is an ancient technology. Five thousand years ago, Egyptians used it to join copper water pipes together. Over the centuries it evolved into an essential technology to fuse various types of metals as experienced welders learned to optimize...
Photonics Spectra, November 2022
Increased Component Density Plants Hurdles on the Road to Scaling the Production of PICs
When CEO Iñigo Artundo’s company began providing engineering solutions for photonic integration in 2011, the typical photonic integrated circuit (PIC) had five to 10 components. Today, VLC Photonics is seeing far more complex photonic...
Photonics Spectra, November 2022
3D Printing Creates New Optical Possibilities
Emerging 3D printing technology is transforming once-impossible designs of optical components into optimized elements that can improve medical instruments, research tools, communications systems, and consumer devices. In 3D printing, an additive...
Photonics Spectra, October 2022
Optical Frequency Combs Reach Beyond Research
Optical frequency combs (OFCs) measure the oscillations of light directly, delivering a level of precision superior to any other measurement technique. This feature of direct measurement is being exploited in applications ranging from metrology to...
Photonics Spectra, October 2022
UV Imaging Reveals Useful Details — at a Cost
Feature sizes of modern electronics continue to shrink, approaching or even surpassing the wavelength of light, and equipment manufacturers are looking for new ways to improve the optical resolution of their systems to inspect ever smaller...
Photonics Spectra, October 2022
Advancements in Diffraction Grating Aim to Change the Rules
Because they separate light into its spectral components, diffraction gratings lie at the heart of modern spectrometers, hyperspectral imagers, optical coherence tomography systems, and similar instruments. In the future, gratings may improve...
Photonics Spectra, September 2022
Sputter-Coated Optics Improve Machine Vision and Remote Sensing
For biomedical instrumentation applications such as fluorescence microscopy and Raman spectroscopy, sputter-coated thin-film interference filters deliver exemplary performance. These filters also enhance imaging system performance for applications...
Photonics Spectra, September 2022
Large Aspheres Manage High-Power Laser Energy
Laser system output power is constantly increasing. The maximum attainable peak power of laser pulses has increased by a factor of about 1000 every 10 years1. This pace of progress is similar to the rapid advancements in integrated circuits...
Photonics Spectra, September 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 increasing precision to introduce disruptive applications...
Photonics Spectra, August 2022
STEM Programs Struggle to Satisfy the ‘Endless Demand’ for Photonics Talent
Earlier this year, at a major recruitment event at the University of Arizona’s Wyant College of Optical Sciences (OSC), the job openings listed outnumbered students in attendance. This imbalance exemplifies the immense pressure STEM programs...
Photonics Spectra, August 2022
Photonic Wire Bonding: Using Lasers to Integrate Lasers
Just as electronic integrated circuits have revolutionized computing, photonic integrated circuits (PICs) are poised to transform applications such as high-speed optical communications, optical signal processing, optical sensing, and quantum...
Photonics Spectra, August 2022
More than Skin Deep: Photonics Protects Our Cultural Heritage
For hundreds of years, analysis trumped preservation when it came to irreplaceable cultural heritage objects such as paintings, icons, and written works. Today, conservators avoid taking even tiny samples from works of priceless art, making...
Photonics Spectra, August 2022
VCSELs Increase Power and Wavelength for 3D Sensing
For vertical-cavity surface-emitting lasers (VCSELs), the future looks bright — because their performance is rising while their price is falling. On the horizon is also a move from near-IR to shortwave IR wavelengths. These trends will help...
Photonics Spectra, July 2022
Optical Fiber Sensors Enable New Biomedical Devices
The biomedical community recognized the advantages of optical fibers long ago, accepting them even before their adoption for long-haul telecommunications. Early research on the light-guiding properties of fibers in the late 1920s was aimed at...
Photonics Spectra, July 2022
An Actively Cooled Mid-IR Telescope Peers Through Space Dust
When the European Space Agency’s (ESA’s) Herschel Space Observatory revealed that the universe was far richer in star-forming dust than previously thought, the engineers who were developing a new mid-infrared space instrument recognized...
Photonics Spectra, July 2022
Bridging the Terahertz Gap with Simulation Software
Rather than coining the phrase “x-ray vision,” perhaps comic book writers should have called it “terahertz vision” instead. The precise blend of electromagnetic and material properties in the terahertz spectrum enables...
Photonics Spectra, July 2022
Outshining LEDs: Diode Lasers Deliver Intensity to Illumination
The development of light-emitting diode (LED) lighting has been a great success story of our times. LEDs are nearly ideal light sources that have largely replaced other lighting technologies, except in some niche applications. Solid-state lighting...
Photonics Spectra, July 2022
As PIC Production Ramps Up, Fabricators Eye Alignment Options
The early 2000s saw the rapidly growing global appetite for data collide with the limitations of copper-based wire networks. The performance of these conventional data transmission systems declined dramatically at data bandwidths beyond 10 Gbit/s,...
Photonics Spectra, June 2022
Industrial Femtosecond Laser Advancements Power Next-Generation Applications
Commercial use of ultrashort-pulse lasers, and femtosecond pulsed lasers in particular, continues to rise, due to the ability of these sources to cleanly ablate material or tissue with minimal heating of and damage to surrounding areas, and with...
Photonics Spectra, June 2022
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