Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting
Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting
The high-refractive index contrast (Δn ~0.65 as compared to silicon oxide) of Tantalum pentoxide (Ta2O5) waveguide allows strong confinement of light in waveguides of sub-micron thickness (200 nm). This enhances the intensity in the evanescent field, which we have employed for efficient propelling of micro-particles. The feasibility of opto-fluidics sorting of different sized micro-particles based on their varying optical propulsion velocity is suggested. Optical propulsion of fixed red blood cells (RBC) with velocity higher than previously obtained is also reported. The optical propulsion velocities of RBC in isotonic solution (0.25 M sucrose) and water have been compared.
Ahluwalia, Balpreet Singh
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Hellesø, Olav Gaute
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Subramanian, Ananth Z.
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Wilkinson, James S.
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Chen, Jie
7181526d-ec25-480e-a35e-37bf4616e131
Chen, Xuyuan
6462a25a-e468-4c27-aeb4-350f882c94f3
8 February 2010
Ahluwalia, Balpreet Singh
f6dfb1bb-760f-4a7e-9050-d66de72348e0
Hellesø, Olav Gaute
7c341b6b-c11d-475d-aedd-558f02210e53
Subramanian, Ananth Z.
051aee73-cf97-4738-8784-fbaff72bd6b9
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Chen, Jie
7181526d-ec25-480e-a35e-37bf4616e131
Chen, Xuyuan
6462a25a-e468-4c27-aeb4-350f882c94f3
Ahluwalia, Balpreet Singh, Hellesø, Olav Gaute, Subramanian, Ananth Z., Wilkinson, James S., Chen, Jie and Chen, Xuyuan
(2010)
Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting.
SPIE Photonics West, , San Francisco, United States.
23 - 28 Jan 2010.
(doi:10.1117/12.840632).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The high-refractive index contrast (Δn ~0.65 as compared to silicon oxide) of Tantalum pentoxide (Ta2O5) waveguide allows strong confinement of light in waveguides of sub-micron thickness (200 nm). This enhances the intensity in the evanescent field, which we have employed for efficient propelling of micro-particles. The feasibility of opto-fluidics sorting of different sized micro-particles based on their varying optical propulsion velocity is suggested. Optical propulsion of fixed red blood cells (RBC) with velocity higher than previously obtained is also reported. The optical propulsion velocities of RBC in isotonic solution (0.25 M sucrose) and water have been compared.
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More information
Published date: 8 February 2010
Additional Information:
Published in vol. 7613
Venue - Dates:
SPIE Photonics West, , San Francisco, United States, 2010-01-23 - 2010-01-28
Identifiers
Local EPrints ID: 78922
URI: http://eprints.soton.ac.uk/id/eprint/78922
PURE UUID: 583b4c68-e3b6-4b9a-b650-29f671eae561
Catalogue record
Date deposited: 16 Mar 2010
Last modified: 14 Mar 2024 02:32
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Contributors
Author:
Balpreet Singh Ahluwalia
Author:
Olav Gaute Hellesø
Author:
Ananth Z. Subramanian
Author:
Jie Chen
Author:
Xuyuan Chen
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