Optical trapping of gold aerosols
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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Optical trapping of gold aerosols. / Schmitt, Regina K.; Pedersen, Liselotte Jauffred; Taheri, S. M.; Linke, Heiner; Oddershede, Lene Broeng.
Proceedings of SPIE - The International Society for Optical Engineering. Bind 9548 SPIE - International Society for Optical Engineering, 2015. 95480F-1.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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TY - GEN
T1 - Optical trapping of gold aerosols
AU - Schmitt, Regina K.
AU - Pedersen, Liselotte Jauffred
AU - Taheri, S. M.
AU - Linke, Heiner
AU - Oddershede, Lene Broeng
PY - 2015/8/25
Y1 - 2015/8/25
N2 - 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.
AB - 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.
KW - Aerosol
KW - aerotaxy
KW - air
KW - gold nano-particles
KW - laser manipulation
KW - optical tweezers
KW - polystyrene nano-particles
KW - power spectral analysis
UR - http://www.scopus.com/inward/record.url?scp=84950994256&partnerID=8YFLogxK
U2 - 10.1117/12.2188444
DO - 10.1117/12.2188444
M3 - Article in proceedings
AN - SCOPUS:84950994256
SN - 9781628417142
SN - 9781628417142
VL - 9548
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - SPIE - International Society for Optical Engineering
T2 - Optical Trapping and Optical Micromanipulation XII
Y2 - 9 August 2015 through 12 August 2015
ER -
ID: 153448524