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 press release
(9,094 items)
Research & Technology News
Metamaterials May Be Used to Make Objects Invisible
Jul 1, 2006 — Sir John B. Pendry of Imperial College London and collaborators David R. Smith and David Schurig of Duke University in Durham, N.C., and Ulf Leonhardt of the University of St. Andrews in the UK have independently calculated that metamaterials can be designed to guide electric, magnetic or electromagnetic fields around an object and make it invisible to the outside world. Potential applications of such media include stealth coatings for the military and shielding for sensitive electronics. In...
Microcavity Is Sensitive Detector for Heavy Water
Jul 1, 2006 — Researchers at California Institute of Technology in Pasadena have demonstrated a technique for detecting heavy water (D2O) that is 30 times more sensitive than the best competing approach. They fashioned a tiny optical microresonator from silica...
New Ytterbium Host Offers Efficiency and Tunability
Jul 1, 2006 — The broad absorption and emission spectra of ytterbium, together with its small quantum defect, make it an ideal laser dopant — in many ways, it is superior to the quintessential veteran, neodymium. The chief drawback of ytterbium is the small...
Passivated Carbon Nanoparticles Show Promise for Multiplexed Biolabeling
Jul 1, 2006 — Although semiconductor quantum dots have shown promise as bright fluorescent labels, concerns about their toxicity remain, particularly for biological uses. Now a group of scientists at Clemson University in South Carolina has demonstrated that...
Photonic Bandgap Fiber Forces a Weak Line to Lase
Jul 1, 2006 — Both the fundamental wavelength of the neodymium 4F3/2 → 4I9/2 transition (890 to 950 nm) and its second harmonic have applications in spectroscopy, and the harmonic also is useful in displays and medical sensing. Quasi-phase matching makes it...
Picosecond Fiber Laser Breaks 100-W Barrier
Jul 1, 2006 — Fiber lasers already have proved capable of remarkable continuous-wave performance, generating more than 1 kW with excellent beam quality. Scientists at the University of Southampton and at Southampton Photonics in the UK now have shown that fiber...
Superconducting Detector Collects Terahertz Radiation
Jul 1, 2006 — Detecting terahertz radiation is a chore. Terahertz waves are of interest for a variety of imaging applications because they do not interact strongly with many materials, but if they are not absorbed, they cannot be detected. Now researchers in...
Waveguide Generates and Modulates Second Harmonic
Jul 1, 2006 — Researchers at Kyushu University in Fukuoka, Japan, have analyzed and demonstrated a quasi-phase-matched lithium-niobate waveguide that incorporates an integrated electro-optic modulator. The compact, monolithic device could find applications in...
Ceramic Nd:YAG Laser Generates 144 W
Jun 1, 2006 — Ceramic laser materials may enable the development of significantly less expensive lasers because the noncrystalline hosts can be fabricated much more quickly and simply than traditional crystalline laser materials. Moreover, because a ceramic laser...
Compact Solid-State Laser Generates 4.6 W at 457 nm
Jun 1, 2006 — A major stumbling block on the way to laser displays is the lack of a compact, efficient blue source. Compact blue lasers also are valuable for medical diagnostics and optical storage and in the military for underwater communication. Recently,...
Compact Solid-State Source Is Tunable from Green to Red
Jun 1, 2006 — Tunable femtosecond pulses in the visible spectral region are valuable in numerous applications, including spectroscopy, frequency metrology and confocal microscopy, but the lasers that produce these pulses tend to be bulky, temperamental and...
Laser Technique Accurately Measures Turbine Tip Clearance
Jun 1, 2006 — The clearance between a turbine blade and its housing is critical to the machine’s performance. Too large a spacing results in detrimental leakages, but contact between the blade and housing could destroy the machine. Because the spacing varies with...
Liquid Crystal Lenses May Replace Bifocals
Jun 1, 2006 — By age 50, some people notice that their arms have become too short to hold a newspaper or book where they can read it. That’s a consequence of presbyopia, an age-related inability of the eye to focus on nearby objects. Common solutions include the...
Noise Links Digital Images to Camera
Jun 1, 2006 — Digital forensics has taken a step forward, thanks to a technique developed at State University of New York at Binghamton. A group of researchers led by Jessica Fridrich, associate professor in the department of electrical and computer engineering,...
Phase Mask Increases Depth of Focus
Jun 1, 2006 — Anyone who has taken a picture with a camera only to find some features out of focus will appreciate the recent efforts of a team from Bar-Ilan University in Ramat Gan and from Tel Aviv University, both in Israel. The group has increased the depth...
Photonic Crystal Improves IR Sensor Performance
Jun 1, 2006 — Scientists at the University of New Mexico in Albuquerque and at California Institute of Technology in Pasadena have reported that the addition of a two-dimensional hexagonal photonic crystal to a quantum dots-in-a-well infrared photodetector...
Photonic Quasicrystals Studied Experimentally
Jun 1, 2006 — Scientists in Israel and in the US have experimentally investigated the optical properties of nonlinear photonic quasicrystals, two-dimensional structures with long-range order but no periodicity. The results may offer insights into various...
Short Photonic Crystal Fiber Shows Promise for High-Peak-Power Pulse Generation
Jun 1, 2006 — Photonic crystal fiber enables designers to avoid several of the problems inherent with conventional fiber. In particular, the chief limitation on the power achievable with fiber lasers involves nonlinear effects whose onset scales with the product...
Bar Codes Are Fabricated on the Microscale
May 1, 2006 — Researchers at the University of Southampton in the UK have taken the familiar bar code to an extreme. They have developed diffraction-based bar codes up to 100 µm in length and only a few microns wide that can be read without contact, in a manner...
Compact Solid-State Source Generates 600 mW at 488 nm
May 1, 2006 — In the decades since the first 488nm argon-ion laser was marketed by Spectra-Physics, a multibillion-dollar instrumentation market has grown around that wavelength. Flow cytometry, DNA sequencing, confocal microscopy and other analytical medical...
Diamond Heat Spreader Facilitates VECSEL’s Room-Temperature Operation
May 1, 2006 — The circular Gaussian beam of a vertical-external-cavity surface-emitting laser (VECSEL) is more useful in numerous applications than the elliptical, nonsymmetrical beam emitted by edge-emitting lasers. The external-cavity design — with the output...
Fiber Laser Emits Microjoules in Femtosecond Pulses
May 1, 2006 — Fiber lasers are well-known for their excellent heat dissipation and ruggedness, although stable, mode-locked operation of high-average-power fiber lasers has not been readily obtained. But the output of such lasers — stable, ultrashort pulses with...
Hybrid’ Bulk/Fiber Lasers Provide Best of Both Worlds
May 1, 2006 — A new word is working its way into the laser lexicon: hybrid. Although the word has several connotations in the English language, the new usage applies to conventional bulk solid-state lasers (i.e., those with laser rods) that are pumped efficiently...
Microfluidic Dye Laser Generates Two Coaxial Wavelengths
May 1, 2006 — The lab-on-a-chip concept entails integrating the components of one or more analytic instruments on a single, monolithic chip. Such devices are of enormous value in chemical — and, especially, biological and medical — analysis. They are portable,...
Mode-Locked Parametric Oscillator Produces 700-ps Pulses
May 1, 2006 — Until the development of periodically poled nonlinear crystals with high, broadband parametric gain, mode-locking an optical parametric oscillator (OPO) was an unlikely proposition at best. Recently, however, a collaboration among several...
<
1
2
3
...
278
279
280
281
282
...
362
363
364
>
July 2024
Subscribe
Advertise
Issue Library
Latest Products
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.
Mid-Power LEDs
Luminus Devices Inc.
Features
Femtosecond Lasers Spur a Precision Revolution in Materials Processing
Photonics Spectra
, Jul 2024
In the All-Data Revolution, Optical Solutions Advance Beyond PICs
Photonics Spectra
, Jul 2024
Ultraviolet PICs Push the Potential of Nonvisible Microscopy
Photonics Spectra
, Jul 2024
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.