Helical Beams Give Particles a Whirl

Helical Beams Give Particles a Whirl

Two teams of researchers in the UK and Australia have found that by using specially sculpted laser beams they can make particles spin, speed up and slow down the spinning, stop it, and make it spin the other way. Such dexterity makes the optical tweezers an entirely new tool--what the British group...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1996-07, Vol.273 (5271), p.36-36
1. Verfasser: Bains, Sunny
Format: Artikel
Sprache:eng
Schlagworte:
Electric fields
Innovations
Laser beams
Lasers
Nanotechnology
Optical instruments
Optical properties
Optics
Particle beams
Particles
Particulate matter
Research News
Researchers
Rotation
Tweezers
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Beschreibung
Zusammenfassung:Two teams of researchers in the UK and Australia have found that by using specially sculpted laser beams they can make particles spin, speed up and slow down the spinning, stop it, and make it spin the other way. Such dexterity makes the optical tweezers an entirely new tool--what the British group calls an optical spanner, or wrench.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.273.5271.36