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Manipulation of optical field distribution in layered composite polymeric – inorganic waveguides

Manipulation of optical field distribution in layered composite polymeric – inorganic waveguides
Manipulation of optical field distribution in layered composite polymeric – inorganic waveguides
We discuss the manipulation of optical field distribution in a low-refractive index polymeric waveguide by depositing a thin high refractive index Ta2O5 film on top of the waveguide. According to microstructure studies, the sputtered Ta2O5 thin films deposited on the polymer layer were very smooth with root mean square surface roughness value of 0.58 nm, had amorphous phase, and were optimal for integrated optical devices. Both computational and experimental optical studies suggest that the inorganic-polymeric composite waveguide design greatly increases the intensity distribution of the propagating mode at the surface. Consequently, the interaction of the optical field with the ambient surrounding medium is enhanced by a factor of about 1.7 in order of magnitude.
composite materials, integrated optics, optical polymers, optical waveguides, refractive index, surface roughness
0003-6951
111113-[3pp]
Hiltunen, J.
cf4de971-1190-45ee-8809-c31cb8b4b8f4
Pearce, S.
54891fdd-25ca-4768-ab4d-27f51be1e3e9
Wang, M.
66a75e8c-a780-4fe8-8aa6-b37e80a6c134
Puustinen, J.
c575620e-daac-4c47-a6e2-f7ad00dcc1f5
Uusitalo, S.
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Lappalainen, J.
01e5d8f7-4705-478b-b141-43fbf4975c51
Karioja, P.
5e3e7ea3-7c69-40a8-afa5-fe1895716a9e
Charlton, M.D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Hiltunen, J.
cf4de971-1190-45ee-8809-c31cb8b4b8f4
Pearce, S.
54891fdd-25ca-4768-ab4d-27f51be1e3e9
Wang, M.
66a75e8c-a780-4fe8-8aa6-b37e80a6c134
Puustinen, J.
c575620e-daac-4c47-a6e2-f7ad00dcc1f5
Uusitalo, S.
8a7be7c8-e6a0-4dcd-a7a0-c6f914a82a9a
Lappalainen, J.
01e5d8f7-4705-478b-b141-43fbf4975c51
Karioja, P.
5e3e7ea3-7c69-40a8-afa5-fe1895716a9e
Charlton, M.D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274

Hiltunen, J., Pearce, S., Wang, M., Puustinen, J., Uusitalo, S., Lappalainen, J., Karioja, P. and Charlton, M.D.B. (2011) Manipulation of optical field distribution in layered composite polymeric – inorganic waveguides. Applied Physics Letters, 98 (11), 111113-[3pp]. (doi:10.1063/1.3567756).

Record type: Article

Abstract

We discuss the manipulation of optical field distribution in a low-refractive index polymeric waveguide by depositing a thin high refractive index Ta2O5 film on top of the waveguide. According to microstructure studies, the sputtered Ta2O5 thin films deposited on the polymer layer were very smooth with root mean square surface roughness value of 0.58 nm, had amorphous phase, and were optimal for integrated optical devices. Both computational and experimental optical studies suggest that the inorganic-polymeric composite waveguide design greatly increases the intensity distribution of the propagating mode at the surface. Consequently, the interaction of the optical field with the ambient surrounding medium is enhanced by a factor of about 1.7 in order of magnitude.

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More information

Published date: 18 February 2011
Keywords: composite materials, integrated optics, optical polymers, optical waveguides, refractive index, surface roughness
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 350296
URI: https://eprints.soton.ac.uk/id/eprint/350296
ISSN: 0003-6951
PURE UUID: 9f734c61-301c-4fa7-877e-782244044409

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Date deposited: 25 Mar 2013 11:24
Last modified: 16 Jul 2019 21:39

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