Structured Light Fields: Applications in Optical Trapping, by Mike Wördemann

By Mike Wördemann

The optical trapping of colloidal topic is an unmatched box of know-how for permitting distinctive dealing with of debris on microscopic scales, exclusively by way of the strength of sunshine. even though the fundamental idea of optical tweezers, that are in accordance with a unmarried laser beam, has matured and located an unlimited variety of fascinating functions, specifically within the lifestyles sciences, there are robust calls for for extra refined techniques. This thesis supplies an introductory evaluate of latest optical micromanipulation suggestions and experiences the cutting-edge of the rising box of dependent mild fields and their functions in optical trapping, micromanipulation, and supplier. the writer provides tested, and introduces novel thoughts for the holographic and non-holographic shaping of a mild box. a unique emphasis of the paintings is the demonstration of complicated purposes of the hence created established mild fields in optical micromanipulation, employing quite a few geometries and unconventional gentle propagation homes. whereas many of the strategies constructed are verified with man made microscopic reference debris, the paintings concludes with a accomplished demonstration of optical keep watch over and alignment of bacterial cells, and hierarchical supramolecular employer utilizing devoted nanocontainer particles.

Show description

Read Online or Download Structured Light Fields: Applications in Optical Trapping, Manipulation, and Organisation PDF

Similar nanostructures books

Statistical mechanics of lattice systems

This two-volume paintings offers a entire examine of the statistical mechanics of lattice versions. It introduces the reader to the most parts in statistical mechanics and the idea of part transitions. the improvement is equipped on a company mathematical and actual foundation. quantity 1 comprises an account of mean-field and cluster version equipment effectively utilized in many purposes in solid-state physics and theoretical chemistry in addition to an account of tangible effects for the Ising and six-vertex versions and people derivable via transformation equipment.

Effects of Explosions on Materials: Modification and Synthesis Under High-Pressure Shock Compression

Within the Fifties explosives started to be used to generate ultrahigh pressures in condensed components as a way to adjust their homes and constitution. though the quick length of an explosion, its power proved to be excessive sufficient to accomplish physical-chemical variations of drugs, and the hot strategy received huge commercial purposes.

Novel Approaches of Nanotechnology in Food. Nanotechnology in the Agri-Food Industry Volume 1

Novel techniques of Nanotechnology in nutrition, a quantity within the Nanotechnology within the Agri-Food sequence, represents a precis of the newest advances made within the box of nanostructured fabrics that experience major impression at the agri-food undefined. as the present grocery store wishes innovation, nanotechnology coupled with novel interdisciplinary ways and processing equipment has enabled vital advances that experience the aptitude to revolutionize agri-food area.

Extra resources for Structured Light Fields: Applications in Optical Trapping, Manipulation, and Organisation

Example text

2012). The hologram can be designed in such a way that in the trapping plane almost any arbitrary intensity distribution can be achieved. Multiple optical traps in this scenario are only a special case of possible complex trapping geometries. Strong optical tweezers require a high level of laser power in the trapping plane. Consequently, a high diffraction M. 1007/978-3-642-29323-8_3, © Springer-Verlag Berlin Heidelberg 2012 27 28 3 Holographic Phase Contrast efficiency is mandatory and thus usually phase-only DOEs are used.

2009; Shvedov et al. 2010) and bottle-shaped hollow light fields (Shvedov et al. 2010; Zhang and Chen 2011) and employing photophoretic forces (Kerker and Cooke 1982) rather than optical forces. Again, as with the examples of applications of single optical tweezers, the list of exciting innovations is endless and the mentioned works are only an arbitrary selection. Many more examples, however, will be provided within the following chapters. References Allen L, Beijersbergen M, Spreeuw R, Woerdman J (1992) Orbital angular momentum of light and the transformation of laguerre-gaussian laser modes.

J Phys B: At Mol Opt Phys 41:101001 O’Neil A, Padgett M (2002) Rotational control within optical tweezers by use of a rotating aperture. Opt Lett 27:743–745 O’Neil AT, MacVicar I, Allen L, Padgett MJ (2002) Intrinsic and extrinsic nature of the orbital angular momentum of a light beam. Phys Rev Lett 88:053601 Padgett M, Bowman R (2011) Tweezers with a twist. Nat Photonics 5:343–348 Padgett M, Arlt J, Simpson N, Allen L (1995) An experiment to observe the intensity and phase structure of Laguerre-Gaussian laser modes.

Download PDF sample

Rated 4.25 of 5 – based on 19 votes