Optical manipulation of Aerosols using Surface Acoustic Wave Nebulisation. / Anand, S.; Nylk, J.; Dodds, C.; Cooper, J. M.; Neale, S. N.; McGloin, David.
Optical Trapping and Optical Micromanipulation VIII. ed. / K Dholakia; GC Spalding. Vol. 8097 Bellingham : SPIE-International Society for Optical Engineering, 2011. p. -.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - CHAP
T1 - Optical manipulation of Aerosols using Surface Acoustic Wave Nebulisation
A1 - Anand,S.
A1 - Nylk,J.
A1 - Dodds,C.
A1 - Cooper,J. M.
A1 - Neale,S. N.
A1 - McGloin,David
AU - Anand,S.
AU - Nylk,J.
AU - Dodds,C.
AU - Cooper,J. M.
AU - Neale,S. N.
AU - McGloin,David
PB - SPIE-International Society for Optical Engineering
CY - Bellingham
PY - 2011
Y1 - 2011
N2 - <p>High density micron sized aerosols from liquid surfaces were generated using surface acoustic wave (SAW) nebulisation. The SAWs are made from a set of interdigitated electrodes (IDT) deposited on a lithium niobate (LiNbO3) substrate and are designed to operate around 10MHz. RF powers of similar to 235mW are used to achieve nebulisation. Power below this results in droplet motion across the substrate surface. The nebulisation process generated aerosols of a narrow size distribution with diameter ranging from 0.5-2 mu m. We consider ways in which these aerosols can be loaded into optical traps for further study. In particular we look at how SAW nebulisation can be used to load particles into a trap in a far more robust manner than a conventional nebuliser device. We demonstrate trapping of a range of particle types and sizes and analyse the size distribution of particles as a function of the applied frequency to the SAW device. We show that it is simpler to load, in particular, solid particles into optical traps using this technique compared to conventional nebulisation. We also consider the possibilities for loading nanoparticles into aerosol optical tweezers.</p>
AB - <p>High density micron sized aerosols from liquid surfaces were generated using surface acoustic wave (SAW) nebulisation. The SAWs are made from a set of interdigitated electrodes (IDT) deposited on a lithium niobate (LiNbO3) substrate and are designed to operate around 10MHz. RF powers of similar to 235mW are used to achieve nebulisation. Power below this results in droplet motion across the substrate surface. The nebulisation process generated aerosols of a narrow size distribution with diameter ranging from 0.5-2 mu m. We consider ways in which these aerosols can be loaded into optical traps for further study. In particular we look at how SAW nebulisation can be used to load particles into a trap in a far more robust manner than a conventional nebuliser device. We demonstrate trapping of a range of particle types and sizes and analyse the size distribution of particles as a function of the applied frequency to the SAW device. We show that it is simpler to load, in particular, solid particles into optical traps using this technique compared to conventional nebulisation. We also consider the possibilities for loading nanoparticles into aerosol optical tweezers.</p>
KW - aerosol
KW - optical trapping
KW - surface acoustic wave
KW - DIELECTRIC PARTICLES
KW - RADIATION PRESSURE
KW - DROPLET
KW - TRAP
KW - TWEEZERS
U2 - 10.1117/12.892457
DO - 10.1117/12.892457
M1 - Conference contribution
SN - 978-0-81948-707-0
VL - 8097
BT - Optical Trapping and Optical Micromanipulation VIII
T2 - Optical Trapping and Optical Micromanipulation VIII
A2 - Spalding,GC
ED - Spalding,GC
SP - -
ER -