optical tweezers

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optical tweezers

[′äp·tə·kəl ′twēz·ərz]
(optics)
References in periodicals archive ?
The researchers say it can be used to remove liquid used with any type of optical trap, or even traps formed with acoustic waves.
Cromer, Optical trap detector for calibration of optical fiber powermeters: coupling efficiency, Appl.
Last year, David Weiss of Pennsylvania State University in University Park and his colleagues demonstrated an optical trap able to hold hundreds of atoms in a cubic array, to image and manipulate the atoms individually, and to make them interact with one another.
Once a trapped cell was moved away from the bulk of cells to an area in the chamber where no cells were seen on the computer screen (at least 5 mm from cell compartment), the cell was immediately removed by aiming the tip of a standard 20-/[micro]L pipetter at the active optical trap and withdrawing 5-15 /[micro]L.
A single-beam gradient-force optical trap, called an optical tweezers, uses a microscope objective lens to focus a single beam of laser light.
Summary: TEHRAN (FNA)- Scientists from the Department of Microsystems Engineering (IMTEK) of the University of Freiburg have constructed an innovative new optical trap that can grab and scan tiny elongated bacteria with the help of a laser.
The optical configuration of each DUT is based on an optical trap having two photodiodes and a spherical mirror.
Chemistry in an optical trap is something that just has not been done," Henderson says.
The minimum power at which the microsphere was pulled into the optical trap was recorded.
The new record is of 7 milliseconds for rubidium atoms stored in a dipole optical trap, while the previous record for storage time was 32 microseconds- a difference of more than two orders of magnitude.
The team applied a gradient-force optical trap, or "optical tweezers," to mitochondria cruising along microtubules within an amoeba.

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