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Controlling Random Lasers
Random lasers, with their very irregular angular emission pattern, are difficult to tune. But a team at Vienna University of Technology has theoretically shown that they can be controlled by actively shaping the spatial pump distribution, giving these exotic light sources the potential to become useful. “The essential point is the way in which the random laser is pumped,” said professor Stefan Rotter of the Institute of Theoretical Physics at TU Vienna. “Our idea is to pump the laser not uniformly, but rather with a specific pattern, which is optimized such as to generate exactly the laser beam we want.”
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Pump-Probe Laser Imaging to Improve the Arts
A laser technique designed to diagnose melanoma is being applied to art, uncovering paint pigments and layering techniques noninvasively to provide insight into historical works, through a collaboration between the North Carolina Museum of Art and Duke University.
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Wavelength Reference Cells
Triad Technology
Our wavelength reference cells are grouped in two categories: Vapor Cells and Gas Cells. Our standard vapor cells are natural Rubidium, Rubidium Isotope 85, Rubidium Isotope 85, Cesium, Iodine, Sodium, Water and Potassium.
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Optics that Span the Spectrum
Spectrum Thin Films
CUSTOM OPTICS to full production runs using state-of-the-art equipment delivered to meet your exact requirements. Optics from miniature to 1 meter.
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Space Station to Test Laser Communications
NASA will begin testing the Optical Payload for Lasercomm Science (OPALS) instrument that could dramatically improve spacecraft communication transmission rates by a factor of 10 to 100.
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A New Way to Trap Light
There are several methods to confine light, but a new approach uses two waves of the same wavelength — but exactly opposite phases — to cancel each other out, allowing other wavelengths to pass freely.
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On this edition of the industry's only weekly newscast: a crystal-based data storage method might outlast the human race, a collaboration applies a laser imaging technique for melanoma to art, NASA tests technology that could dramatically speed spacecraft communications, and an enterprising student devises a body-heat-activated flashlight. Hosted by Photonics Media's Laura Marshall and Melinda Rose.
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Photonics Industries Expanding on Long Island
The maker of Q-switched intracavity solid-state harmonic lasers and former Stony Brook University incubator will expand its operations in Islip and add 40 new jobs, the Suffolk County Industrial Development Agency announced.
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Capasso a Guest Scientist at MPQ
Renowned applied physicist Federico Capasso of Harvard University will join the Laser Spectroscopy Div. at the Max Planck Institute of Quantum Optics (MPQ), where he will explore the potential of quantum cascade lasers for mid-IR-frequency comb generation.
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5-D ‘Superman’ Memory Crystal Created
Nanostructured glass has been demonstrated as a medium for recording digital text in 5-D using a femtosecond laser. The portable memory technology could store vast quantities of information — 360 TB on a disc — for more than a million years.
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SPIE Optics + Photonics is the largest interdisciplinary technical conference in North America, presenting the latest research and technologies in solar, nano, optics, photonics and space optics. The conference’s four symposia (Nanoscience + Engineering, Solar Energy + Technology, Organic Photonics + Electronics, and Optical Engineering + Applications) will offer more than 3200 presentations, including plenary and featured talks on topics such as metamaterials for molded optical wavefronts, asteroid-tracking and collision-mitigation, Kepler’s search for Earthlike planets and nanoparticle technology to convert solar energy directly into saturated steam for sterilizing tools and waste. The show also will include more than 40 professional development courses, poster sessions, panel discussions and a tribute to H. John Caulfield.
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FEATURED VIDEO
Continuum - Introducing Powerlite Furie
Built on the proven Powerlite laser platform and using our energy through efficiency approach, the Powerlite Furie delivers 7J of IR and 4J of green, ensuring excellent beam profile and overall performance that’s best-in-class in all aspects of stability. Continuum (408) 727-3240 www.continuumlasers.com
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