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Optical trapping of gold aerosols

Schmitt, Regina LU ; Jauffred, Liselotte LU ; Taheri, S. Mohammad-Reza; Linke, Heiner LU and Oddershed, Lene B. (2015) Conference on Optical Trapping and Optical Micromanipulation XII In Proceedings of SPIE 9548. p.95480-95480
Abstract
Aerosol trapping has proven challenging and was only recently demonstrated. 1 This was accomplished by utilizing an air chamber designed to have a minimum of turbulence and a laser beam with a minimum of aberration. Individual gold nano-particles with diameters between 80 nm and 200 nm were trapped in air using a 1064 nm laser. The positions visited by the trapped gold nano-particle were quantified using a quadrant photo diode placed in the back focal plane. The time traces were analyzed and the trapping stiffness characterizing gold aerosol trapping determined and compared to aerosol trapping of nanometer sized silica and polystyrene particles. Based on our analysis, we concluded that gold nano-particles trap more strongly in air than... (More)
Aerosol trapping has proven challenging and was only recently demonstrated. 1 This was accomplished by utilizing an air chamber designed to have a minimum of turbulence and a laser beam with a minimum of aberration. Individual gold nano-particles with diameters between 80 nm and 200 nm were trapped in air using a 1064 nm laser. The positions visited by the trapped gold nano-particle were quantified using a quadrant photo diode placed in the back focal plane. The time traces were analyzed and the trapping stiffness characterizing gold aerosol trapping determined and compared to aerosol trapping of nanometer sized silica and polystyrene particles. Based on our analysis, we concluded that gold nano-particles trap more strongly in air than similarly sized polystyrene and silica particles. We found that, in a certain power range, the trapping strength of polystyrene particles is linearly decreasing with increasing laser power. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Aerosol, air, optical tweezers, gold nano-particles, polystyrene, nano-particles, power spectral analysis, laser manipulation, power, spectral analysis, aerotaxy
in
Proceedings of SPIE
volume
9548
pages
95480 - 95480
publisher
SPIE
conference name
Conference on Optical Trapping and Optical Micromanipulation XII
external identifiers
  • wos:000366497300008
  • scopus:84950994256
ISSN
0277-786X
1996-756X
DOI
10.1117/12.2188444
language
English
LU publication?
yes
id
df21c8dc-9e46-4767-95a5-52cd0db3e8d3 (old id 8556735)
date added to LUP
2016-01-28 08:57:01
date last changed
2017-01-01 03:53:28
@inproceedings{df21c8dc-9e46-4767-95a5-52cd0db3e8d3,
  abstract     = {Aerosol trapping has proven challenging and was only recently demonstrated. 1 This was accomplished by utilizing an air chamber designed to have a minimum of turbulence and a laser beam with a minimum of aberration. Individual gold nano-particles with diameters between 80 nm and 200 nm were trapped in air using a 1064 nm laser. The positions visited by the trapped gold nano-particle were quantified using a quadrant photo diode placed in the back focal plane. The time traces were analyzed and the trapping stiffness characterizing gold aerosol trapping determined and compared to aerosol trapping of nanometer sized silica and polystyrene particles. Based on our analysis, we concluded that gold nano-particles trap more strongly in air than similarly sized polystyrene and silica particles. We found that, in a certain power range, the trapping strength of polystyrene particles is linearly decreasing with increasing laser power.},
  author       = {Schmitt, Regina and Jauffred, Liselotte and Taheri, S. Mohammad-Reza and Linke, Heiner and Oddershed, Lene B.},
  booktitle    = {Proceedings of SPIE},
  issn         = {0277-786X},
  keyword      = {Aerosol,air,optical tweezers,gold nano-particles,polystyrene,nano-particles,power spectral analysis,laser manipulation,power,spectral analysis,aerotaxy},
  language     = {eng},
  pages        = {95480--95480},
  publisher    = {SPIE},
  title        = {Optical trapping of gold aerosols},
  url          = {http://dx.doi.org/10.1117/12.2188444},
  volume       = {9548},
  year         = {2015},
}