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Layer Structure Enhances Light Absorption
A double absorbing layer based on amorphous silicon thin film is promising for solar cells because it considerably enhances the utilization of sunlight. Other potential applications can be found in the field of IR detection. Over the past few decades, hydrogenated amorphous silicon (a-Si:H) thin film has been widely studied because of its potential use in a wide variety of devices, such as photodetectors, large-area displays and xerographic applications.1-6 It was considered an
Photonics Spectra, June 2015
Materials Innovations Help LEDs Turn On
For LEDs, changes in materials are cutting costs and boosting performance. That’s vital as light-emitting diodes move into new applications and general illumination, where cost is king. Cost has played a major role in the development and...
Photonics Spectra, June 2015
Laser World of Photonics
Laser World of Photonics, June 22-25, 2015, Munich Trade Fair Center, Munich Laser Munich will focus on image processing, from products and systems to manufacturing and applications. Image processing and laser systems are ever-present in modern...
Photonics Spectra, May 2015
Consumers Demand More, and Photonics Is Up for the Challenge
The Consumer Electronics Association forecasts that the U.S. consumer electronics industry – in which photonics plays an enabling role – will generate $223 billion in wholesale revenue during 2015. It’s a mixture of aesthetics,...
Photonics Spectra, May 2015
Diode Laser Developments: Higher Power, Higher Brightness
Diode lasers are finding traction in new applications, thanks to advances in wavelength combining, new wavelengths and improvements in production. Thanks to their high efficiency, compact size and low power requirements, commercial laser diodes are...
Photonics Spectra, May 2015
Advances in Micromechatronics Promote All-in-One Positioning Modules
Smart motion technologies can reduce system size and simplify integration, enabling smaller photonic instruments with full performance. Advances in microactuators, microelectronics and micromechatronics are enabling a new class of all-in-one...
Photonics Spectra, May 2015
Improved Photometric Testing for High-Power LEDs
The LM-85 approved method for electrical photometric measurement of high-power LEDs harmonizes the methods currently in use and addresses measurement consistency issues. This is the first in a two-part series. The standardized photometric testing...
Photonics Spectra, May 2015
Displays You Wear
Challenges still exist in the development of wearable devices, but continued advances may ultimately change how people interact with the world around them. It’s a case of a sight for sore eyes and other body parts, with display advances...
Photonics Spectra, May 2015
Advances in Industrial Color Testing of Automotive Metallic Finishes
The measurement and characterization of lightness fluctuations, their scaling properties and their potential causes could help design low-noise industrial painting processes and help engineer innovative color and texture effects. The appearance of...
Photonics Spectra, April 2015
Breaking the Mold: Overcoming Manufacturing Challenges of Chalcogenide Glass Optics
Fabricating optics using chalcogenides can be challenging because of these glasses’ special optical, mechanical and economical characteristics. Diamond-turned machining is a viable option for addressing some of the issues with the conventional...
Photonics Spectra, April 2015
Consumers and Cost Are Driving Infrared Imagers into New Markets
Once the exclusive domain of the military, infrared imagers are now taking commercial applications by storm, thanks to lower prices and better technology. In fact, it seems the only limit to this flourishing technology is our imagination....
Photonics Spectra, April 2015
Hyperspectral Imager Opens Options for Consumer, Medical and Industrial Uses
The applications, advantages and impact of microsized HSI enable compact, high-end and even autonomous intelligent cameras. Hyperspectral imaging (HSI) has long been confined to laboratory use and expensive applications. This is changing now, thanks...
Photonics Spectra, April 2015
Nanoparticles: Probing the Plasma Threshold
Laser-induced plasma generation in nanoparticles has potential application in fields as diverse as medicine and materials processing. To fully harness this tool, it is important to understand how nanoparticles behave in strong laser fields and how...
Photonics Spectra, April 2015
Scintillator Detectors with Integrated Nanophotonics for Medical Imaging
Combining the principles of integrated nanophotonics with traditional scintillator materials will greatly improve the development of radiation detection. Strong evidence exists that integrated nanophotonics innovations will have an evolutionary...
Photonics Spectra, April 2015
Femtosecond Lasers Provide a Gentler Way to Micromachine
From the unbreakably hard to the vulnerably soft – from glass, metals and ceramics to plastics and biological tissue – femtosecond lasers are being increasingly adopted for micromachining a range of materials. Femtosecond lasers are...
Photonics.com, March 2015
Lasers, Optics Enhance Optogenetics Studies
A guide to suitable light sources and fiber optic components for optogenetics research, with a specific emphasis on rodent behavior. The use of lasers and optics for optogenetics is only in its infancy. In the next decade, we can expect researchers...
Photonics.com, March 2015
Photonics Advances in the ‘Land of Ideas’
The Abbe refractometer. The stauroscope. The Easter Bunny, the modern tradition of Christmas trees, and the accordion. All of these originated in Germany, and each has made a significant impact on the world. And the country’s innovative spirit...
Photonics.com, March 2015
Electro-Optical Modulators Empower Lasers for Science Applications
Scientific fields such as atomic physics, chemistry, biology and even astronomy are inspired by the use of lasers and ultimately will benefit from the addition of electro-optical modulators. The fundamental research fields of laser spectroscopy and,...
Photonics Spectra, March 2015
Lasers and Machine Vision Improve Pharma Manufacturing
Through pill marking, quality assurance and more, laser-based manufacturing processes and machine vision make medications safer for consumers and more profitable for pharmaceutical companies. In the multidisciplinary pharmaceutical industry,...
Photonics Spectra, March 2015
Lasers Go To The Movies
Laser technology is poised to bring back the magic to 3-D cinema – and bring audiences back to theaters in droves. Just five short years ago, the world was hypnotized by the release of the first commercially successful 3-D movie,...
Photonics Spectra, March 2015
LED-Based Sun-Simulator Design: Technical and Commercial Considerations
A discussion of the limitations of traditional sun-simulator technologies and the advantages offered by LED systems, with a review of LED-based system design characteristics and cost benefits. Sun simulators – instruments that provide...
Photonics Spectra, March 2015
Peering into the Nanoworld with Optical Microscopy
From brain mapping to breaking the laws of physics, optical microscopy has made huge leaps forward in recent years. But as new dimensions open up, it’s clear the real work has only just begun. Last year yielded a bumper crop of Nobel Prizes...
Photonics Spectra, March 2015
Spectroscopy: Going Small to Get the Whole Picture
Advances based on mobile technology are poised to revolutionize spectrometers. As spectrometers shrink in cost, size and power consumption, their applications grow. Proof can be found in agriculture, medicine and the arts, to name just three...
Photonics Spectra, March 2015
Asia-Pacific: Manufacturing the Future
The world of laser-based 3-D printing is one of endless possibilities, so much so that trying to predict its advances seems pointless. Since its emergence in the 1980s, laser-based additive manufacturing has evolved into many forms, including...
Photonics Spectra, February 2015
ColorLock™ Filter Stacks Enable Better Wide-Angle Imaging
New glass filters overcome considerable design challenges to transmit wide-angle incident light without shifting wavelengths, offering an innovative solution for a variety of applications in which the high transmission afforded by dielectric filters...
Photonics Spectra, February 2015
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