Photonics Spectra

Companies Cross-License Optical Transceiver Technology
Finisar Corp., a provider of fiber optic subsystems for high-speed data networks, and Sumitomo...

Consortium Aims to Revitalize Telecom
A telecommunications network is a complex web of optical fiber, routers, amplifiers, waveguides,...

Company Awarded Contracts for IR Sensors
Canada-France-Hawaii Telescope (CFHT) and Gemini Observatory have awarded Rockwell Scientific Co....

Teem Buys Northstar's Amplifier Technology
Teem Photonics Inc., a developer of erbium-doped waveguide amplifiers and a provider of...

Edmund to Supply Binocular Eyepieces for Tanks
Edmund Industrial Optics has been awarded a contract by Northrop Grumman to provide 580 binocular...

Cambridge Lasers Buys the Assets of Lexel Laser
Cambridge Lasers Laboratories Inc. of Fremont, Calif., has bought a major portion of the assets of...

Multisource Agreement Formed to Standardize Transceiver Modules
Agilent Technologies Inc., Nortel Networks and Agere Systems have agreed to establish standard...

Feature Articles

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Lasers Meet the Challenge of Welding Aluminum
Aluminum has always been a challenge to weld, primarily because of its low melting point. But its...

Hard Photonics Problems Require Soft Solutions
Increasingly inexpensive computing solutions are enabling users to reconfigure their instruments...

Photonics Monitors the Ocean's Fish
The dramatic worldwide reduction in fish populations has put the notion of limitless ocean...

Widely Tunable Lasers Ready to Lock and Roll
In the '90s, visions of the all-optical network danced merrily in the heads of the world's...

Jobs in Photonics, Our First European Survey
Photonics Spectra has been conducting an annual job survey in the US for several years. This month,...

Colorizing High-Speed Machine Vision
Color technology has captured a relatively small share of the machine vision market, but that may...

Machining Advances Lead to Multifunctional Optics
Today's optical systems usually serve a variety of functions simultaneously, resulting in...

Presstime Bulletin

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Researchers Measure Vibrationally Excited Water
At a minimum, predicting the absorption spectrum for water vapor requires a set of line positions...

Textured Aperture Beats Diffraction
According to the theory of diffraction, an aperture strongly suppresses the transmission of light...

Quantum Dots Suited for Computing?
Quantum dots are promising candidates to replace the trapped atoms originally posited as the...

Spectroscopy Works with Single Pulse
Physicists at Weizmann Institute of Science in Rehovot, Israel, have demonstrated that a single...

LEDs Emit Orange for White Light
Researchers at National Cheng Kung University, Chung Shan Institute of Science and Technology,...

Microlenses Enable Quantum Computing
Researchers at the University of Hannover in Germany demonstrated atomic computing based on an...

Cr:LiSAF Laser Yields Femtosecond Blue Pulses Blue Pulses
A femtosecond Cr:LiSAF laser emitting 12 mW of blue light has achieved much higher...

Single Laser Writes Inside Glass
Scientists at Japan Science and Technology Corp. in Kawasaki and at Tokyo Institute of Technology...

Single Molecules Display Electroluminescence
Scientists at Georgia Institute of Technology in Atlanta have coaxed photons from individual...

Portable Technique Could Detect Anthrax
A proposed form of coherent anti-Stokes Raman spectroscopy shows promise in distinguishing anthrax...

Research

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Photons Spin More Data
For years, physicists have known that photons can exhibit orbital angular momentum. Spin manifests...

Researchers Form Liquid-Light Theory
Beams of light can be collimated, split or chirped -- and now, some researchers say they can even...

Clock Measures Attosecond Pulses
Scientists at Université de Sherbrooke in Sherbrooke, Quebec, Canada, and at the National Research...

Tweezers Serve up Condensates
At temperatures just above absolute zero, normally distinct atoms collapse into each other's...

Self-Assembly Eases Fabrication of Photonic Crystals
Devices constructed of photonic crystals promise to enable the precise, localized control of...

Tabletop Source Offers Extreme Ultraviolet
Generating laserlike beams of x-rays from a simple tabletop setup, a team based at the University...

Technology

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Spectroscopy Tracks Vibrational Energy in Liquids
Using ultrafast anti-Stokes Raman spectroscopy, chemists at the University of Illinois in...

Amplifier Switching Time Shortened Tenfold
A technique that makes "turn on/turn off" switching times for network semiconductor optical...

Laser Tweezers Rotate Microscopic Rotors
Researchers at the Institute of Biophysics in Szeged, Hungary, have employed laser tweezers to...

Laser Produces Better Road Signs
Most of us acknowledge the messages on roadway signs, and we speed by without giving them another...

Laser Powers Paper Airplanes
A laser-based propulsion system for ultralight aircraft has been demonstrated by researchers at...

Opaque Layer Improves Light Output
Attempting to improve an organic LED's light output by covering its top with an opaque, 50-nm-thick...

Optical Trapping Tests Particles at Oil-Water Barrier
Scientists at Hull University, the CLRC in Didcot and Imperial Chemical Industries in...

Evidence Found for Magnetars
The mysterious stellar objects known as anomalous x-ray pulsars can put out x-ray luminosities that...

Laser Diode Provides High-Power Pulses
Researchers have constructed a laser diode capable of generating approximately 100-W,...

Gaussian Telescope Aperture Improves Contrast
Changing the aperture of a telescope has allowed researchers from Pennsylvania State University in...

Quantum Cascade Laser Amplifier Developed
Scientists from Bell Labs in Murray Hill, N.J., have developed an amplifier for quantum cascade...

Researchers Probe Chemistry of Bubbles
Since luminescence in single cavitating bubbles was described more than a decade ago, the...

Spectroscopy Bares Nanoparticle Structure
Sometimes you need a bigger laser to study smaller particles. Specifically, a group of Dutch...

Australian Researchers Teleport Laser Beam
A team from the Australian National University in Canberra has reported the successful quantum...