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Modified LCD helps measure sensitivity of cuttlefish polarization vision
02/21/2012
Bristol, England--Using a liquid-crystal display (LCD) screen modified to vary polarization angle instead of intensity, researchers at the University of Bristol discovered that cuttlefish have the most acute polarization vision...
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ASI, 89 North, Berliner Glas, Goodrich ISR, and Insight light up the Photonics West show floor (VIDEO)
02/21/2012
San Francisco, CA--Laser Focus World attempted to capture the essence of some of the best showings on both the BiOS and Photonics West 2012 exhibit floors. |
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Spending cuts to US military laser budget may go deep
02/17/2012
For FY 2013, the Pentagon has proposed deep cuts to the budget for military lasers and directed-energy weapons, slashing the total by approximately 33% from FY 2012. |
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LIDAR used to map Mexicali magnitude 7.2 earthquake zone in 3D
02/16/2012
Davis, CA--Scientists from the U.S., Mexico, and China used differential LIDAR to report the most comprehensive 3D before-and-after pictures yet of an earthquake zone. |
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One-step, 'smart' microcapsules useful as SERS substrate
02/14/2012
Scientists at the University of Cambridge have developed a technique for manufacturing ‘smart’ microcapsules in large quantities in one step—using tiny droplets of water. The capsules can be used as a substrate for surface-enha...
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Algorithm is faster than FFT for all sparse signals
02/09/2012
Researchers at the Massachusetts Institute of technology (Cambridge, MA) have developed two algorithms that are faster than the fast Fourier transform (FFT) for all sparse signals. |
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UCSD scientists create nanoscale "thresholdless" laser
02/08/2012
San Diego, CA--A group at the University of California, San Diego (UCSD) has fabricated a so-called "thresholdless" laser, which uses uses quantum electrodynamic effects to achieve lasing without a threshold using a b...
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Quantum properties of glass micromechanical oscillator are controlled by light
02/06/2012
Lausanne, Switzerland--Physicists at the Ecole Polytechnique Fédérale de Lausanne (EPFL), who have for years been making ultrahigh-quality microring resonators for various purposes, have created one that is large enough (30 mic...
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Photosynthetic molecule plus semiconductor make efficient biophotovoltaics
02/04/2012
Knoxville, TN--Barry Bruce and colleagues at the University of Tennessee, Knoxville have created photovoltaic cells containing a nanosctructured semiconductor on which a photosynthetic pigment/protein (photosystem-I, or PS-I) h...
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Photonics21 Annual Meeting to emphasize growth and public-private partnership
02/03/2012
Brussels, Belgium--The annual meeting of Photonics21, scheduled for March 27-28 at the Hotel Husa President Park in Brussels, will focus on the way forward toward the EU Framework Programme Horizon 2020 and the founding of a Ph...
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Can you solve our photonics-themed crossword puzzles? Designed for players at any level--for the novice, we have hints; for the pro, we have a timer. Look for a new puzzle every month. Players can win a $100 gift card for each puzzle.
Upcoming Webcasts |
Low light NIR imaging and spectroscopy - A primer on InGaAs cameras
The webinar explains the basics of InGaAs focal plane array based NIR detection and detector performance criteria needed to achieve high signal-to-noise ratio.
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02/28/2012
/ 01:00 PM EST
/ 12:00 PM CST
/ 10:00 AM PST
/ 06:00 PM GMT
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Photon-Counting DetectorsThis webcast delves into the technology behind the different types of single-photon detectors and the optimum applications for each of them.
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02/27/2012
/ 11:00 AM EST
/ 10:00 AM CST
/ 08:00 AM PST
/ 04:00 PM GMT
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On Demand Webcasts |
Designing with Aspheres
Aspheres can be used to reduce complexity, cost and weight of optical assemblies-but how? Learn from Christopher Cotton, GM and optical engineer for AS...
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Optical Asphere Metrology
This webinar will explain specifying and tolerancing aspheric forms, today’s options for measuring aspheric form error, and how aspheric form determines manu...
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High-power diode laser pumps for alkali lasers (DPALs)
We present performance data of recent high-power laser diodes emitting at typical pump wavelengths for alkali vapor lasers: 852 nm for cesium, 780 nm for rub...
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Filters for Laser Based Microscopes
Due to many desirable properties such as high brightness, stability, longevity, and
narrow spectral bandwidth, lasers have been advantageously replacing con...
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Multimodal Nonlinear Optical Imaging
Nonlinear optical (NLO) imaging is a powerful microscopy technique that has found increasing use in the field of biomedical optics. Ultrafast laser excitatio...
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Fundamentals of Raman spectroscopy
Raman spectroscopy is a nondestructive and highly versatile technique for analysis of chemicals, both organic and inorganic. It is used in industry, bioscien...
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The laser -- its past, present, and future
Invented a half-century ago, the laser was first thought of as "a solution without a problem." However, the effectiveness of coherent light as a to...
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View Laser Focus World past articles now.
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