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Photonics Spectra
Since 1967, Photonics Spectra magazine has defined the science and industry of photonics, providing both technical and practical information for every aspect of the global industry and promoting an international dialogue among the engineers, scientists and end users who develop, commercialize and buy photonics products. Stay current with a FREE subscription to the digital or print edition.

Latest Issue
Nov 2017

New Frontier For Laser Diodes

Mike WheelerSpecialty lighting applications in the entertainment and architectural sectors often require high-luminance sources. Vehicle lighting and projection displays require precise beam shaping and spatial beam modulation. The first choice for these applications is often high-intensity discharge (HID) light sources and, to a lesser extent, LEDs, given their small form factor and effectiveness.

There is a third option.

InGaN laser diodes based on semi-polar orientations of GaN operate at a significantly higher gain compared to more conventional c-plane InGaN diodes. This advance makes them an attractive option over legacy light sources such as halogen and metal halide. This month’s cover story, “Laser Light Source Delivers Superior Optical Control,” by Julian Carey and Paul Rudy of SoraaLaser (read article).

Mention the word “wearables” and consumer goods like smartwatches and glasses come to mind. But wearables play a critical role in industries such as field services, maintenance and energy. For wearable displays, there are two options: see-through displays such as smart glasses from Google or see-around displays that are placed near the eye. For either, there are trade-offs in durability, power efficiency and resolution. Be sure to read “Wearables for Work,” by Contributing Editor Hank Hogan (read article).

Elsewhere in this edition:

• Ground-based near-IR reflectance measurements — combined with chemometric calibrations — offer unique insights into the Earth’s canopy, from trees to tea leaves. Don’t miss “NIRS and Chemometrics Offer Insights Into Earth’s Surface,” by Brian Curtiss of ASD (read article).

• Silicone immersion objectives offer advantages in 3D imaging over prolonged periods compared to their water and glycerol-based counterparts. Olympus’ Andrew Samuelsson’s “Silicone Immersion Objectives Answer the Call for Higher Resolution” (read article).

• The THz region occupies a small portion of the magnetic spectrum and is suited for medical imaging, security screening and space science. Contributing Editor Marie Freebody investigates whether or not a “killer app” is on the horizon in “Terahertz Window Offers Untapped Potential,” (read article).

We round out the issue with Senior Editor Justine Murphy’s examination of the rapidly evolving imaging market in Europe. An increasing demand for health and wellness treatments and noninvasive medical procedures, coupled with the rise of industrial automation, is spurring demand for imaging systems and technology. See “Europe Emerges as Major Player in Imaging” (read article).

Enjoy the issue!
Karen Newman
Group Publisher Karen Newman has had a career in business-to-business and association publishing, much of it spent covering technical, scientific and life sciences subjects.
Mike Wheeler
An award-winning journalist with more than 20 years of experience, Managing Editor Michael D. Wheeler oversees editorial content for Photonics Spectra, EuroPhotonics, BioPhotonics and Industrial Photonics magazines.
Marcia Stamell
Associate Managing Editor Marcia Stamell is the editor of BioPhotonics and Industrial Photonics. She has worked for general interest newspapers, the business press and national magazines as a writer and editor.
Justine Murphy
Senior Editor Justine Murphy is an award-winning journalist with nearly 20 years of experience. She serves as editor of EuroPhotonics, host of Light Matters and producer of podcasts. She also leads development of magazine special sections and marketing projects.
Autum Pylant
News Editor Autum C. Pylant is an Air Force Veteran with 10+ years of award-winning broadcast journalism experience. She is responsible for the steady flow of news and new product announcements to web and print and is the producer of the Light Matters video newscast.
Robin Riley
Multimedia/Web Editor Robin Riley has 30+ years of experience in communications and marketing for a range of technical industries. She is a regular contributor to web content and social media, and organizes and produces custom and editorial webinars.
Hank Hogan
Contributing editor Hank Hogan holds a Bachelor of Science degree in physics from the University of Texas at Austin. Hogan worked in the semiconductor industry and now writes about science and technology.
Marie Freebody
Contributing editor Marie Freebody is a free-lance science and technology journalist with a master’s degree in physics and a concentration in nuclear astrophysics from the University of Surrey in England.
Valerie Coffey
Science writer Valerie C. Coffey holds a bachelor’s degree in physics and a master’s in astronomy. She has covered optics, photonics, physics and astronomy for a variety of industry and academic publications since 2000.
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