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Biological Systems Inspire Image Preprocessing Solutions
Data, as the saying goes, is king. But as any chess player knows, the king without his minions is hamstrung by limited mobility. The ubiquitous deployment of CMOS and CCD imagers across a range of industries and applications has generated an avalanche of image data. However, without the use of centralized processing units — a CPU, GPU, or cloud processor — that data is similarly hobbled. Whether CMOS or CCD, image sensors receive incoming photons and convert optical signals into...
Vision Spectra, Winter 2020
New Tools Promise the Next Big Thing for Quantum Sensing
Sensors form an important foundation for many everyday devices, including microphones, CCD cameras, and touch sensors in smartphone displays. Moreover, sensors play a key role in technological progress, in general, as illustrated by the old adage...
Photonics Spectra, October 2020
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Drones Deliver a Fresh Take on Airborne Imaging Applications
Initially swooping in to provide aerial shots in big-budget movies, UAVs — or drones, in consumer parlance — are now bringing aerial cinematography technology to other applications. Drone-mounted imagers are helping to inspect infrastructure,...
Photonics Spectra, October 2020
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How Vision Systems Can Deliver More than the Sum of Their Parts
The use of both 3D-imaging technology and smart cameras is expanding the flexibility and capabilities of machine vision systems. Integrating these elements with advanced image preprocessing and intelligent software can further enable automated...
Photonics Spectra, October 2020
Optical Frequency Combs Enhance Hyperspectral Imaging
An optical frequency comb is an optical source characterized by a spectrum consisting of evenly spaced frequency lines, known as teeth. This Nobel Prize-winning technology has become a reference tool for optical frequency metrology and spectroscopy...
Photonics Spectra, October 2020
Tiny Quantum Effects Promise Big Impact on Future Instruments
While the quantum world may seem abstract and remote from day-to-day life, researchers are discovering that quantum effects such as photon entanglement could improve the performance and precision of everyday tools. Advancements in quantum metrology...
Photonics Spectra, September 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 optics of figures such as Euclid, Ptolemy, and...
Photonics Spectra, September 2020
Antireflection Coatings for High-Power Fiber Laser Optics
High-power kilowatt-level fiber lasers operating between 1.0 and 1.1 µm find frequent use in macro-materials processing applications, such as cutting and welding metal sheets. The nature of these applications requires laser optics to perform...
Photonics Spectra, September 2020
Member Exclusive
The Fight for First Light: Extremely Large Telescopes
The 2020 U.S. Decadal Survey on Astronomy and Astrophysics, a type of survey in which astronomers set priorities to guide federal budgets during the next 10 years, is in the process of listing its most important projects. Asteroid detection and Mars...
Photonics Spectra, September 2020
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Diamond Raman Lasers Offer Multifaceted Potential
Ever since Ted Maiman used a flash-pumped synthetic ruby crystal to generate the first coherent light source in 1960, the development of optical gain media has become a critical area of study for many science and engineering fields. While...
Photonics Spectra, September 2020
Bringing Habitable Planets to Light with Faster Adaptive Optics
At the heart of every imaging system, from endoscopes to extremely large telescopes, is the pursuit of a perfect image, extracting as much information as possible from every acquired photon. No matter how well designed the system, however,...
Photonics Spectra, September 2020
Digital Age Sees New Demand for the Venerable Conoscope
After languishing for the first century of their existence, conoscopes have become essential to the production of consumer products in an increasing number of industries. What began in 1911 as simple scientific curiosities designed for liquid...
Photonics Spectra, September 2020
Spectroscopic Methods Guide Precision Medicine
Raman spectroscopy captures the effect when light partially scatters inelastically as it interacts with matter. The amounts of energy transferred between photons and molecules during this process correspond to specific molecular vibrations....
Photonics.com, September 2020
Smart Control Methods Speed Up Micromachining
Considerable advancements have been made in the precision and dynamic control of laser scan systems during the last few years. Depending on the application, new control methods can bring additional productivity to users in fields such as...
Photonics.com, September 2020
Hyperspectral Imaging Discerns Authenticity of Artwork
Inauthentic artwork is a significant problem within the art world. According to the Fine Arts Expert Institute, as many as half of the pieces in the art market are forgeries, equaling roughly $60 billion in inauthentic work. Current authentication...
Photonics Spectra, December 2021
Photonic Technologies Energize Sustainability
It could be a greener world, thanks to photonic technologies. That’s the conclusion of a 2020 study forecasting that photonics could eliminate 3 billion tons of CO2 emissions annually by 2030. Paris-based consultancy Tematys contributed to the...
Photonics Spectra, July 2020
Supertwisted Light from a Metasurface Laser
Structured light refers to the tailoring or shaping of light in all its degrees of freedom. The recent development of structured light supports applications such as optical communications, enhanced resolution in imaging, and optical trapping and...
Photonics Spectra, August 2020
Electro-Optic Polymers Improve Speed and Power Efficiency
The search is on for new building blocks to increase the speed of optoelectronic components and decrease electrical power consumption. High-performance electro-optic (EO) materials have matured commercially and have the potential to offer solutions....
Photonics Spectra, August 2020
Photonics for Atomic Sensors
Measurements of isolated atomic systems have provided reliable means to standardize time and frequency, determine fundamental constants with unprecedented precision, and measure small electromagnetic fields and inertial forces. In particular, atomic...
Photonics Spectra, August 2020
Member Exclusive
The Laser Turns 60
Six decades ago, in a windowless lab on a hilltop above the Pacific Ocean, Theodore (Ted) Maiman — assisted by Irnee D’Haenens — tested a palm-size device that would upend the scientific establishment. Working at Hughes Research...
Photonics Spectra, August 2020
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Hybrid Photonics Expands Capabilities
Alone, nothing is perfect. So when various materials in photonics applications work in tandem, a better performing hybrid approach arises, and teamwork prevails. Examples of such hybrid photonics can be found in existing and emerging commercial...
Photonics Spectra, August 2020
Measuring High-Power Materials Processing Lasers with Camera-Based Beam Profilers
From cutting steel to drilling via holes in silicon to marking plastic, a wide range of materials processes now use high-power lasers. Ever-growing demands for increased productivity and reduced waste require that the laser process be stable and...
Photonics Spectra, July 2020
Member Exclusive
Optical Materials Bending the Rules, Shaping Our World
From the emergence of diverse 2D materials (perovskites for efficient solar cells) and twisted bilayer graphene (superconductive at a “magic angle”) to the boom in polymer science and the promise of quantum photonics, materials science...
Photonics Spectra, July 2020
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Imaging Goes 4D
3D imaging has taken off, with applications in cellphones, cars, robots, and more. Now, companies and researchers are looking to what’s next: 4D. While 3D imaging captures information about width, height, and depth (x, y, and z), 4D imaging adds...
Photonics Spectra, June 2020
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Room-Temperature Terahertz Quantum Cascade Lasers
The terahertz (THz) spectral range between the infrared and microwave has long been recognized as an unexploited range of frequency bands. It has considerable potential for application in numerous fields, including communications, imaging,...
Photonics Spectra, June 2020
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