Fabrication of submicrometer high refractive index tantalum pentoxide waveguides for optical propulsion of microparticles
Fabrication of submicrometer high refractive index tantalum pentoxide waveguides for optical propulsion of microparticles
Design, fabrication, and optimization of tantalum pentoxide (Ta2O5) waveguides to obtain low-loss guidance at a wavelength of 1070 nm are reported. The high-refractive index contrast (Δn ~ 0.65, compared to silicon oxide) of Ta2O5 allows strong confinement of light in waveguides of submicrometer thickness (200 nm), with enhanced intensity in the evanescent field. We have employed the strong evanescent field from the waveguide to propel micro-particles with higher velocity than previously reported. An optical propelling velocity of 50 µm/s was obtained for 8 µm polystyrene particles with guided power of only 20 mW.
integrated optics, optical device fabrication, optical strip waveguides, optical waveguides
1408-1410
Ahluwalia, Balpreet Singh
f6dfb1bb-760f-4a7e-9050-d66de72348e0
Subramanian, Ananth Z.
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Hellesø, Olav Gaute
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Perney, Nicolas M.B.
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Sessions, Neil P.
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Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
2009
Ahluwalia, Balpreet Singh
f6dfb1bb-760f-4a7e-9050-d66de72348e0
Subramanian, Ananth Z.
051aee73-cf97-4738-8784-fbaff72bd6b9
Hellesø, Olav Gaute
7c341b6b-c11d-475d-aedd-558f02210e53
Perney, Nicolas M.B.
169bd490-31cb-4379-b25b-ae3e7880081b
Sessions, Neil P.
ee737092-56b4-403e-a2f9-764e07e42625
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Ahluwalia, Balpreet Singh, Subramanian, Ananth Z., Hellesø, Olav Gaute, Perney, Nicolas M.B., Sessions, Neil P. and Wilkinson, James S.
(2009)
Fabrication of submicrometer high refractive index tantalum pentoxide waveguides for optical propulsion of microparticles.
IEEE Photonics Technology Letters, 21 (19), .
(doi:10.1109/LPT.2009.2027025).
Abstract
Design, fabrication, and optimization of tantalum pentoxide (Ta2O5) waveguides to obtain low-loss guidance at a wavelength of 1070 nm are reported. The high-refractive index contrast (Δn ~ 0.65, compared to silicon oxide) of Ta2O5 allows strong confinement of light in waveguides of submicrometer thickness (200 nm), with enhanced intensity in the evanescent field. We have employed the strong evanescent field from the waveguide to propel micro-particles with higher velocity than previously reported. An optical propelling velocity of 50 µm/s was obtained for 8 µm polystyrene particles with guided power of only 20 mW.
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Published date: 2009
Keywords:
integrated optics, optical device fabrication, optical strip waveguides, optical waveguides
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 270968
URI: http://eprints.soton.ac.uk/id/eprint/270968
ISSN: 1041-1135
PURE UUID: d447c74d-4700-4128-8cae-62b39a11c00b
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Date deposited: 03 May 2010 10:51
Last modified: 15 Mar 2024 02:34
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Contributors
Author:
Balpreet Singh Ahluwalia
Author:
Ananth Z. Subramanian
Author:
Olav Gaute Hellesø
Author:
Nicolas M.B. Perney
Author:
Neil P. Sessions
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