Monthly Archives January 2008

Laser seized after more attacks on planes

In Sydney, Australia, police have seized a high-powered laser that might have been responsible for endangering two commercial aircraft on Tuesday night. smh.com.au




Nanolasers boost data storage

US researchers have made a nanolaser that could enable data to be stored with a density of 10 Tbit per square inch.

The nanolaser can focus light with a power of over 200 nW into a spot just 35 nm across. The result suggests that data storage beyond 10 Tbit per square inch could be possible at last.

More atoptics.org




Lasers unearth historical sites

Laser technology is being used to locate potential archaeological sites hidden by woodland in Worcestershire.

The hope is that ancient settlements and farms across the Wyre Forest will be detected by lasers fired from aircraft 3,300ft (1,000m) up.

The results are processed by computers and turned into images of the ground, currently hidden by trees.

The technique is known as Light, Detection and Ranging (LiDAR).

more…




laser etched pet gifts

GritterGiftShop.com offers nice laser-etched wooden pet gifts, like magnets, coasters, and trivets. Following are a few examples.

First Results from the Mercury Laser Altimeter

On January 14, 2008, MESSENGER’s Mercury Laser Altimeter (MLA) became the first instrument to measure the distance between a spacecraft and the surface of Mercury. MLA operates by first firing a brief laser pulse at the surface. It then measures the time for the pulse to reach the surface and return to the spacecraft, thereby providing a precise distance. link

laser guided walk

A portable, battery-powered laser device has been developed in Singapore to help people suffering from Parkinson’s disease regain their walking rhythm.

Parkinson’s is a slow, degenerative disease that deprives sufferers of steady movement, leading to jerky small steps or freezing up in narrow spaces, the team said. To take the next step, patients need a cue.

The device, which generates cues telling patients when and how to walk, shoots a red laser beam on the ground, creating a path.

link

Laser Experiments for Beginners

Laser Experiments for Beginners, by Richard N. Zare, Bertrand H. Spencer, Dwitght S. Springer. The perfect blueprint for science teachers who want to bring one of the most remarkable research tools of the 20th century into their classrooms: the laser. Requiring only a low-cost, low-power laser the book presents a series of experiments for in-class demonstrations or student activities. Quick-reference instructions identify needed equipment, recommend safety practices, and help select desired experiments. The book is designed to enhance existing courses in chemistry, physics, and biology.

It is a valuable book for laser enthusiasts.

More Than 101 Ways to Use a Laser

Laser pointers are very cheap now. Beside melting plastic, lighting cigarates, playing with pets, or pointing to an airplane, etc, laser pointers can be used to do much more cool things. More Than 101 Ways to Use a Laser, an article by Herb Gottlieb from Metrologic Instruments Inc., which was written on 200, is still very valuable.

Get inspired to have more fun with lasers.

Less Talk, More Lasers!

Are you tired of US politics?

link

Halo 3 Spartan Laser suicide

Laser weapons are still under development in real world. But in virtual world, laser weapons are mature and popular. This Halo 3 footage shows how a player is destroyed by his own Spartan Laser blast. :)