The profile of a Bessel beam
Jim Walker
University fo Bristol, Bristol, UK
This is the profile of a Bessel beam which we use to trap and probe single aerosol droplets.
The beam consists of a central core surrounded by a series of concentric rings, and is formed when a gaussian laser beam propagates through a conical lens (an axicon).
This Bessel beam propagates vertically and aerosol droplets are trapped in the central core. The vertical position of the droplet can be manipulted by changing the laser power.
Reuse
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) (opens in a new window)Credit: Jim Walker (distributed via imaggeo.egu.eu)
Properties
Type
Image
Format
JPG
Size
930.2 KB
Width
3911 px
Height
3599 px
Aspect
3911:3599
Brand
Watec
Model
LCL-211H
Taken
10 January 2011
Tint
Black
Submitted
11 March 2011
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