Register
Sign In
Subscribe
Advertise
Publications
Photonics Spectra
BioPhotonics
Vision Spectra
Photonics Showcase
Photonics Buyers' Guide
Photonics Handbook
Photonics Dictionary
Newsletters
News & Features
Latest News
Latest Products
Features
All Things Photonics Podcast
By Technology
Lasers & Light Sources
Optics
Materials & Coatings
Imaging
Sensors & Detectors
Test & Measurement
Integrated Photonics
Spectroscopy
Biophotonics
Machine Vision
Marketplace
Supplier Search
Product Search
Career Center
Webinars & Events
Webinars
Photonics Media Virtual Events
Industry Events Calendar
Resources
White Papers
Videos
Bookstore
Contribute an Article
Suggest a Webinar
Submit a Press Release
Subscribe
Advertise
Become a Member
Publications
Photonics Spectra
BioPhotonics
Vision Spectra
Photonics Showcase
Photonics Buyers' Guide
Photonics Handbook
Photonics Dictionary
Newsletters
News & Features
Latest News
Latest Products
Features
All Things Photonics Podcast
By Technology
Lasers & Light Sources
Optics
Materials & Coatings
Imaging
Sensors & Detectors
Test & Measurement
Integrated Photonics
Spectroscopy
Biophotonics
Machine Vision
Marketplace
Supplier Search
Product Search
Career Center
Webinars & Events
Webinars
Photonics Media Virtual Events
Industry Events Calendar
Resources
White Papers
Videos
Bookstore
Contribute an Article
Suggest a Webinar
Submit a Press Release
Subscribe
Advertise
Become a Member
Register
Sign In
submit feature idea
FEATURES
New LED Format Is the Pits
The latest LED innovation literally is the pits. Researchers in Takashi Egawa’s group at Nagoya Institute of Technology in Japan have increased the efficiency of gallium nitride LEDs by fabricating them with densely packed V-shaped craters that measure 2 to 3 μm wide and deep. Because of the pits, the light generated in the device has an easier time escaping and, therefore, more is emitted. This image depicts the surface morphology of a pitted GaN-based LED. Reused with permission...
Photonics Spectra, February 2007
The Evolution of Automotive Displays
Automotive displays have come a long way from the analog electromechanical needle moving in front of printed numerals on a contrasting background. The mechanical modification of the indicator dials is a story in itself, with dark lettering on a...
Photonics Spectra, February 2007
The Importance of Color in Delivering Information
Advancements in lighting sources and display technologies have enabled the development of new PDA-size automotive instrument clusters. In a space of just 3 to 4 inches, graphical symbols and different colors provide the driver with a range of...
Photonics Spectra, February 2007
Trends in Laser Damage
The demand for high-energy laser systems has increased steadily in recent years, driven by applications in defense, semiconductor processing and basic research, among others. The systems range from those that are continuous wave (CW) to those with...
Photonics Spectra, February 2007
Turning the Windshield into a Display
A major problem with ever-more-sophisticated automobiles is the growing amount of information provided to drivers. Increased information in dashboard displays diverts eyes from the road, creating a distraction that can lead to accidents. Head-up...
Photonics Spectra, February 2007
Zinc Phosphide Nanowires for Photon Detection
Although not dirt, zinc phosphide is cheap and abundant. Carefully synthesized structures of the material also have good optical efficiency and resist the buildup of an oxide layer on their surface. Together, these properties give the substance...
Photonics Spectra, February 2007
A Hybrid Silicon Laser
Silicon photonics holds the potential to create low-cost, highly integrated optical components using the same CMOS-based manufacturing techniques that have revolutionized the electronics industry over the past 40 years. This potential is important,...
Photonics Spectra, January 2007
A Laser’s Force Dampens Cantilever Action
David M. Weld and Aharon Kapitulnik of Stanford University in California recently demonstrated that even low-power lasers pack a punch. Using laser-driven radiation pressure force-feedback, they reduced the effective quality factor and temperature...
Photonics Spectra, January 2007
A Wealth of Opportunities from a Little Generosity
At heart, I’m a scientist and an engineer. I enjoy the process of figuring out how things work and how various pieces fit together to make an efficiently functioning system. The challenge of solving problems, whether in optics, information...
Photonics Spectra, January 2007
Cavity-Enhanced Absorption Spectroscopy
Detects Geothermal Gases
Gas phase chromatography and mass spectrometry often are used to analyze volcanic emissions because of their ability to detect low levels of trace gases. However, these techniques are limited by their instrumental complexity and inability to...
Photonics Spectra, January 2007
Converging Complexity Challenges Educators to Prepare Tomorrow’s Innovators
Although there is much publicity and debate in the US over the outsourcing of engineering jobs to countries that pay lower wages, the problem is the dearth of graduating engineers for those jobs.1 The challenge to US educators remains the same...
Photonics Spectra, January 2007
Correlating Excitation and Emission Wavelengths Yields Analysis of Complex Chemical Environments
Spectroscopically scrutinizing chemicals within complex environments — such as inside cometary matter or combustible materials — is challenging because many molecules absorb and emit at similar wavelengths, confounding spectral analysis....
Photonics Spectra, January 2007
Current Trends in Machine Vision
More than 25 years after machine vision appeared in the industrial automation marketplace, the technology has established itself as a necessary part of high-quality, cost-effective manufacturing. Over the past decade, the capabilities promised from...
Photonics Spectra, January 2007
Fast Light, Slow Light and Optical Precursors: What Does It All Mean?
The speed of light in vacuum (c ≈ 3 × 108 m/s) is an important physical constant that appears in Maxwell’s theory of electromagnetism. For this reason, scientists have endeavored to measure it with very high precision, making it...
Photonics Spectra, January 2007
Forecast for 2007: Nano Gets Big
Not long ago, nanometer-scale positioning was a laboratory curiosity. Today, the robust and responsive nanopositioning provided by piezoelectric actuation is more vital than ever in the lab and has become an essential commodity for industries...
Photonics Spectra, January 2007
Intrazeolite PbS Quantum Dots with Nonlinear Properties Observed
At Sogang University in Seoul, South Korea, scientists have successfully incorporated lead sulfide quantum dots into zeolite-Y films and found high levels of third-order nonlinear optical activity. The material could be used for optical switches,...
Photonics Spectra, January 2007
Machine Vision in Germany and Europe
Machine vision technology remains the key to quality, productivity and competitiveness in production. It also is extending beyond the traditional factory applications and beginning to conquer new markets such as robotic vision. In Europe and,...
Photonics Spectra, January 2007
New Laser Export Controls Set to Take Effect
The Wassenaar export controls exist to limit the shipment of products that have potential military applications to non-Wassenaar countries whose military and/or political motivations are unclear. The 40 Wassenaar countries (see table) agree on a...
Photonics Spectra, January 2007
Playing Rough to Get the Light Out
Researchers at the Electronics and Telecommunications Research Institute of Daejeon, South Korea, have shown that, when it comes to getting a silicon quantum dot LED to shine, it helps to play rough — at least with the surface. The group enhanced...
Photonics Spectra, January 2007
Searching for the Source of Stradivari’s Sublime Sound
Musicians and listeners alike have debated for centuries why instruments crafted by Italian master Antonio Stradivari have such a sublime sound. Modern technology may at last have found the answer. Researchers used solid-state nuclear magnetic...
Photonics Spectra, January 2007
Sharp Corners and Kaleidoscopes Lead to Novel Microscopy Techniques
Researchers at Harvard Medical School in Boston have developed two microscopy techniques: a near-field method that offers potentially better performance than other superresolution techniques and a “mirror tunnel” approach that promises...
Photonics Spectra, January 2007
Silicon Nanowires Act as Nanoscale Avalanche Photodetectors
Researchers at Harvard University in Cambridge, Mass., have synthesized PIN silicon nanowires with single-crystal structures and uniform diameters that demonstrate potential for use as avalanche photodetectors in integrated photonic systems. The...
Photonics Spectra, January 2007
Transient Form of Two-Dimensional IR Spectroscopy
Shows Molecules in Motion
Understanding the way that molecules operate means digging deeply — examining not only their structures, but also how they change shape under various conditions. Techniques such as nuclear magnetic resonance and x-ray crystallography help...
Photonics Spectra, January 2007
White Polymer LEDs Incorporate New Dopant
Researchers at the Chinese Academy of Sciences in Beijing and at the University of California, Los Angeles, have demonstrated white LEDs that feature emission layers of the orange-emitting polymer...
Photonics Spectra, January 2007
3-D Vision Gets Real
Many classes of commercial and consumer products would benefit from the ability to visually sense their environment and react to what is happening in real time. These products would have to operate in dynamic, variably lit real-world environments....
Photonics Spectra, December 2006
<
1
2
3
...
63
64
65
66
67
...
115
116
117
>
(2,906 results found)
July 2024
Subscribe
Advertise
Issue Library
Latest News
Cepton to be Acquired by Koito
Jul 29, 2024
IEEE Photonics Society Names Award Recipients
Jul 29, 2024
Cellphone-Based Raman Spectrometer Recognizes Materials in Minutes
Jul 29, 2024
U.K. Government Decision Clears Way for Exosens to Acquire Centronic Limited
Jul 29, 2024
Nearfield Instruments Secures €135M Funding Round: Week in Brief: 7/26/24
Jul 26, 2024
PsiQuantum to Build Utility-Scale Quantum Computer in Chicago
Jul 26, 2024
Stacked Vertical MoS2 Layers Show Strong Optoelectrical Qualities
Jul 25, 2024
EssilorLuxotica to Acquire Majority Stake in Heidelberg Engineering
Jul 25, 2024
NIST Updates UV Calibration System
Jul 25, 2024
Report Urges Coordinated Uptick in European Photonics Investment Amid China's Advancements
Jul 24, 2024
Latest Products
Event-Based Camera
LUCID Vision Labs Inc.
2 MP GSI Sensor
Gpixel Inc.
800G Transceiver
Approved Networks
Optical Measuring Machine
Vici & C SpA, Metrios
Tunable Light Sources
MKS Instruments Inc.
Fast Line-Scan Cameras
Basler AG
Piezo Wafer Stage
PI (Physik Instrumente) LP, Motion Control, Air Bearings, Piezo Mechanics
Benchtop Live-Cell Interface
CytoTronics Inc.
Software Solution Stack
Lattice Semiconductor Corp.
High-Speed Framing Cameras
Specialised Imaging Ltd.
Explore Our Content
News
Features
Latest Products
Webinars
White Papers
All Things Photonics Podcast
Videos
Our Summits & Conferences
Industry Events
Bookstore
Join Our Community
Subscribe
Advertise
Become a member
Sign in
Contribute a Feature
Suggest a Webinar
Submit a Press Release
Mobile Apps
About Us
Our Company
Our Publications
Contact Us
Career Opportunities
Teddi C. Laurin Scholarship
Terms & Conditions
Privacy Policy
California Consumer Privacy Act (CCPA)
©2024 Photonics Media
100 West St.
Pittsfield, MA, 01201 USA
[email protected]
We use cookies to improve user experience and analyze our website traffic as stated in our
Privacy Policy
. By using this website, you agree to the use of
cookies
unless you have disabled them.