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Backstory: VCSEL Breakthrough, 1989 Jun 2, 2019 — Thursday, May 11, 1989 It was the first test of our first attempt to fabricate VCSELs. They lit up! Thousands of VCSELs on a crumb-size chip lased readily with low threshold currents (1s of mA), the smallest lasers in the world. The original ~6- × 8-mm2 chip held over a million of them. It was hard to fathom, especially since we’d never before designed or built a diode laser. Seasoned laser experts had laughed at our audaciousness and scorned our intercompany collaboration. But
Photonics Spectra, Jun 2019
Critical Considerations for Embedded Vision Design May 31, 2019 — Embedded vision is a hot topic in many industrial spaces. The integration of data processing on board a camera without the need for a back-end PC, server, or other costly system has system developers — in industries from factory test and...
Photonics Spectra, Jul 2019
IR Metrology with Visible Light May 31, 2019 — IR instruments are indispensable tools for material analysis, environmental sensing, and homeland security. Through decades of development and commercialization, one common and significant limitation has been the weak efficiency of IR optical...
Photonics Spectra, Jul 2019
Photovoltaic Technologies Aim for Higher Efficiency Ratings May 28, 2019 — In a time of growing concern about climate change and the high cost of humanity’s carbon footprint, there are glimmers of hope. A global boom in sustainable energy investment is underway. The Renewable Energy Policy Network for the 21st...
Photonics Spectra, Jul 2019
Correction Systems for Deep Imaging Drive More Precise Views May 17, 2019 — Multiphoton microscopy is widely regarded as the primary technique for deep imaging in live tissue. However, image brightness and resolution are typically poorer at deep sites because of increased optical spherical aberration compared to superficial...
BioPhotonics, Jun 2019
Laser World of Photonics 2019 Apr 30, 2019 — LASER World of PHOTONICS 2019, one of the largest photonics trade shows in Europe, will be held in Munich June 24-27. The biennial event will feature the latest in photonics research, technology, and applications. The fair will take place across...
Photonics Spectra, Jun 2019
Picosecond Lasers Transform Volume Manufacturing Apr 29, 2019 — Laser micromachining has revolutionized volume manufacturing, enabling smaller feature sizes, novel device geometries and materials, improved process yields, and reduced production costs. Industries as diverse as consumer electronics, medical...
Photonics Spectra, Jun 2019
Optical Coatings with Atomic Precision Apr 28, 2019 — Today, optical coatings are a commodity: They exist on all types of professional and consumer optics. Among the various technologies for depositing optical coatings1,2, atomic layer deposition (ALD) stands out for its conformal coating on...
Photonics Spectra, Jun 2019
Medical Lasers Find Their Niche Apr 28, 2019 — Because lasers can offer less-invasive procedures for both diagnosis and treatment, their role in the medical field is on the rise. Lasers can be modulated in wavelength, power, density, and energy, and they have a wide range of applications in...
BioPhotonics, Jun 2019
LaserNetUS Reinvigorates Ultrahigh-Intensity Laser Research Apr 26, 2019 — Since the invention of chirped pulse amplification (CPA) in 1985 by two of the three winners of the 2018 Nobel Prize in physics — Gérard Mourou and Donna Strickland — and the subsequent development of this technology into...
Photonics Spectra, Jun 2019
From Textiles to Meat: CO2 Lasers Leave Their Mark Apr 25, 2019 — Sealed CO2 laser sources are useful in many manufacturing applications — from cutting, drilling, and perforating to marking, engraving, scribing, and welding. They can process a diverse array of materials — including textiles, polymers,...
EuroPhotonics, Jun 2019
Antireflective Surfaces via Subwavelength Etching Apr 24, 2019 — Antireflection (AR) coatings are essential for applications where light throughput is critical, or where backreflections cause issues. Such issues range from ghosts and glare in imaging applications to unwanted feedback or stray beams in laser...
Photonics Spectra, Jun 2019
AR, VR Markets Primed for Rapid Growth Apr 23, 2019 — After experiencing incremental gains over the past decade, the augmented and virtual reality (AR/VR) markets are poised for swift advancement as the technologies mature and find new uses. Market research firms predict that from 2017 to 2023, the...
EuroPhotonics, Jun 2019
Custom Optical Coatings for Cinema, Avionics, and LIGO Apr 12, 2019 — Commercial off-the-shelf (COTS) optical components such as filters, beamsplitters, prisms, and mirrors are used in numerous applications, including machine vision, microscopy, and optical test and measurement. These components are often coated with...
Photonics Spectra, May 2019
LASER World of PHOTONICS 2019: An Innovation Playground Apr 10, 2019 — With a first-rate portfolio, LASER World of PHOTONICS (Laser Munich) is a one-stop shop for research and technology, industry, and academia — showcasing numerous photonics components, systems, and applications. The biennial conference and...
BioPhotonics, Jun 2019
Computational Imaging Builds Better Pictures Apr 9, 2019 — A picture may be worth more than a thousand words after passing through mathematical algorithms and modern computer hardware. Such a process, known as computational imaging, can speed up data acquisition significantly, thereby allowing the use of...
BioPhotonics, Jun 2019
Ever-Vigilant: Machine Learning and AI Move into Surveillance Apr 4, 2019 — The business of surveillance, whether by still or video camera, is booming. It’s being driven by military, industrial, and commercial customers as well as consumers. According to a report by BIS Research1, the video portion of the market will...
Vision Spectra, Jun 2019
Advanced Imaging for Quantum Materials Research Apr 3, 2019 — Quantum theory seeks to explain the nature and behavior of matter and energy at the atomic and subatomic levels. Such phenomena are elucidated via research that aims to manipulate the state of this matter and energy to achieve accurate, measurable,...
Photonics Spectra, May 2019
Single-Beam Multidimensional Coherent Spectroscopy Apr 1, 2019 — Multidimensional coherent spectroscopy (MDCS) is a set of laser techniques that nondestructively measures how evolving matter absorbs and emits light. It was first proposed in 1993 to excite molecular vibrations through the Raman effect, but optical...
Photonics Spectra, May 2019
Photoluminescence Spectroscopy Optimizes Perovskite Quantum Dots Apr 1, 2019 — Perovskite semiconductors have attracted tremendous attention in recent years because of the rapid rise of perovskite solar cell efficiencies — from less than 10% to more than 20% in less than five years — and the potential for the...
Photonics Spectra, May 2019
Member Exclusive
Consumer AR/VR Headsets Focus on Nontraditional Optics Mar 25, 2019 — The promise of commercial augmen-ted and virtual reality (AR/VR) technologies seems always to be just around the corner. Nearly three decades have passed since the Sega Corporation announced its Sega VR gaming headset, which was one of the first of...
Photonics Spectra, May 2019
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Holographic Combiners Improve Head-Up Displays Mar 18, 2019 — Combiners are semitransparent surfaces used in head-up display (HUD) and augmented reality (AR) systems to overlay an image presented by a projector on top of the viewer’s physical world. The combiner is transparent and lets the viewer see...
Photonics Spectra, May 2019
IR Light Illuminates Biotech Manufacturing Mar 15, 2019 — Medicine and biotech industries make and utilize high volumes of custom pieces, including prosthetics, implants, personalized medicine, and large-scale medical devices. Getting these products to market faster and more efficiently can save millions...
BioPhotonics, Apr 2019
Ultrashort-Pulse Lasers: Emerging Tools for Biomedical Discovery Mar 15, 2019 — From nonsurgical vision correction to multiphoton imaging to neuronal optogenetics, ultrashort-pulse lasers — also informally known as ultrafast lasers — have become essential tools in biomedical discovery. VEGFR3-positive (red)...
BioPhotonics, Apr 2019
Upconversion Materials Empower Thermal Bioimaging Mar 8, 2019 — Bioimaging is a fundamental technique for research in the life sciences, and it is used routinely in the medical industry. The procedure itself encompasses many different methods, such as electron microscopy, x-ray tomography, and magnetic resonance...
BioPhotonics, Apr 2019
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