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Latest Optics Express Stories

2014-01-23 23:01:13

New Work in OSA's Journal Optics Express Suggests That Fur Coats and Down Feathers Might Derive Much of Their Impressive Insulating Power from an Unexpected Optical Mechanism Washington, DC (PRWEB) January 23, 2014 In work that has major implications for improving the performance of building insulation, scientists at the University of Namur in Belgium and the University of Hassan I in Morocco have calculated that hairs that reflect infrared light may contribute significant insulating...

2013-03-13 15:10:18

Engineers at Stanford have developed a prototype single-fiber endoscope that improves the resolution of these much-sought-after instruments fourfold over existing designs. The advance could lead to an era of needle-thin, minimally invasive endoscopes able to view features out of reach of today´s instruments. Engineers at Stanford have demonstrated a high-resolution endoscope that is as thin as a human hair with a resolution four times better than previous devices of similar design....

New Bio-inspired Coating That Increases LED Efficiency By 55 Percent
2013-01-08 13:48:41

Optical Society of America The nighttime twinkling of fireflies has inspired scientists to modify a light-emitting diode (LED) so it is more than one and a half times as efficient as the original. Researchers from Belgium, France, and Canada studied the internal structure of firefly lanterns, the organs on the bioluminescent insects' abdomens that flash to attract mates. The scientists identified an unexpected pattern of jagged scales that enhanced the lanterns' glow, and applied that...

2012-05-31 01:14:40

The storage of light-encoded messages on film and compact disks and as holograms is ubiquitous---grocery scanners, Netflix disks, credit-card images are just a few examples. And now light signals can be stored as patterns in a room-temperature vapor of atoms. Scientists at the Joint Quantum Institute have stored not one but two letters of the alphabet in a tiny cell filled with rubidium (Rb) atoms which are tailored to absorb and later re-emit messages on demand. This is the first time two...

2012-03-27 00:34:55

New 'thermal' approach to invisibility cloaking hides heat to enhance technology In a new approach to invisibility cloaking, a team of French researchers has proposed isolating or cloaking objects from sources of heat–essentially "thermal cloaking." This method, which the researchers describe in the Optical Society's (OSA) open-access journal Optics Express, taps into some of the same principles as optical cloaking and may lead to novel ways to control heat in electronics and, on an...

2012-03-14 09:35:25

Ultrafast lasers, lasers that emit light pulses that are as short as a few femtoseconds, have enabled a wide-range of fundamental science and applications over the past two decades. To highlight recent state-of-the-art developments in femtosecond lasers, the Optical Society (OSA) today published a series of papers as part of an upcoming special Focus Issue on Modular Ultrafast Lasers in its open-access journal Optics Express. The issue is organized and edited by Wilson Sibbett and Tom Brown...

'Star Comb' Joins Quest For Earth-like Planets
2012-03-08 04:03:29

If there is life on other planets, a laser frequency comb developed at the National Institute of Standards and Technology (NIST) may help find it. Such a comb–a tool for precisely measuring frequencies, or colors, of light–has for the first time been used to calibrate measurements of starlight from stars other than the Sun. The good results suggest combs will eventually fulfill their potential to boost the search for Earth-like planets to a new level. As described in Optics...

A Smarter Way To Make Ultraviolet Light Beams
2011-11-30 04:50:40

Existing coherent ultraviolet light sources are power hungry, bulky and expensive. University of Michigan researchers have found a better way to build compact ultraviolet sources with low power consumption that could improve information storage, microscopy and chemical analysis. A paper on the research is newly published in Optics Express. The research was led by Mona Jarrahi and Tal Carmon, assistant professors in the Department of Electrical Engineering and Computer Science. The...

2011-11-07 17:03:28

Research highlights energy efficient solutions for display and lighting applications The search for innovative, cost-effective and energy-efficient solutions for display and lighting applications are the focus of ongoing intense worldwide photonics research and development activities. Organic light-emitting diodes (OLEDs)–lightweight, potentially flexible, cheap-to-fabricate and highly energy-efficient lighting and display devices–offer one solution in alternative energy...


Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.