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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
May 2018

Quantum Dots Give LCD Makers the Edge

They’re tiny inorganic semiconductor particles 10,000 times smaller than the diameter of a human hair. Yet, because of the unique combination of efficiency and narrow emission profiles, quantum dots are having an outsize impact on the consumer display market, posing a formidable rival to OLED technology.

Unlike other down-converting materials, such as phosphors, quantum dots have a unique capacity to efficiently absorb high-energy blue light and re-emit that light at longer wavelengths, such as green and red. In quantum dot-enabled displays — marketed as QLED technology — green and red dots are mixed together in a polymer to create high-quality red, green, and blue light when stimulated by a blue LED. And the results are stunning, with more efficient, vibrant, and brighter displays. Don’t miss this month’s cover story, “Quantum Dots: Taking the Display World by Storm,” by Peter Palomaki (read article).

In honor of the Society for Information Display’s annual conference in Los Angeles this month, we included a second imaging-themed feature, “Optical Mapping Delivers Realistic, 3D Images for AR,” by Liang Gao from the University of Illinois at Urbana-Champaign. Despite the impressive functionality of a number of virtual and augmented reality devices from tech giants and startups alike, a formidable problem remains: Few of these devices put wearability and human perception at the center of hardware design. Gao presents a new approach that divides the screen display into different subpanels and then optically maps them to various depths, creating a multiplane volumetric image (read article).

Elsewhere in the magazine:

• The astronomical community was one of first to recognize the clarifying power of adaptive optics (AO) and it remains the biggest proponent of new advances in the field. As we learn in “Adaptive Optics Look Farther Than Ever Before,” from Contributing Editor Marie Freebody, emerging uses for AO systems include ophthalmology and deep-tissue imaging (read article).

• Recent advances in nonaccelerator techniques have led to commercially available sources of extreme UV radiation. See “Extreme UV Sources Fill the Gap,” from Faiz Rahman of Ohio University (read article).

• While graphene is often the focus of much research and development in two-dimensional (2D) material, it’s only one of as many as a thousand stable 2D materials that could one day transform the fields of quantum information processing, multispectral imaging, and others. See Contributing Editor Hank Hogan’s “Thinnest of Materials Loom Large,” (read article).

Enjoy the issue!
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.
Karen Newman
Karen Newman, Publisher/Books & Courses for Photonics Media Press, has had a career in business-to-business and association publishing, much of it spent covering technical, scientific and life sciences subjects.
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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