Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News

Bessel Tweezers Manipulate Multiple Objects

Facebook Twitter LinkedIn Email Comments
Laser tweezers are finding application in many research disciplines, but they restrict the user to manipulating single objects. Now a team at St. Andrews University in the UK has demonstrated that tweezers employing lasers with a Bessel beam profile can trap several particles along the beam's axis in separate sample cells.

In the Sept. 12 issue of Nature, the scientists describe how adding an axicon to the setup enables the central maximum of the beam to re-form beyond an obstruction. Using both inverted and standard tweezers configurations, they trapped and manipulated microparticles in up to three sample cells millimeters apart.

Photonics Spectra
Oct 2002
As We Go To PressBreaking NewsPresstime Bulletin

Comments
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2019 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, info@photonics.com

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.