Physical observation of single step UV-written integrated planar Bragg structures and their application as refractive-index sensors
Physical observation of single step UV-written integrated planar Bragg structures and their application as refractive-index sensors
We present what is to our knowledge the first demonstration of a potentially low-cost refractive-index sensor based on UV processing. A channel waveguide and a Bragg grating are defined in a single UV processing step, resulting in a buried structure with a well-defined grating period.
A subsequent wet etch process located over the Bragg grating opens a sensing window in the device and reveals the grating structure. Sensitivity of as much as 5×10-6 was inferred from our device.
5042-5045
Emmerson, Gregory D.
479a3828-e993-42d5-9406-45326e6f56be
Gawith, Corin B.E.
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Sparrow, Ian J.G.
ef0af264-8a21-4380-b082-25db946fd6d2
Williams, Richard B.
c46c705e-6678-4591-8ea0-d25049264d63
2005
Emmerson, Gregory D.
479a3828-e993-42d5-9406-45326e6f56be
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Sparrow, Ian J.G.
ef0af264-8a21-4380-b082-25db946fd6d2
Williams, Richard B.
c46c705e-6678-4591-8ea0-d25049264d63
Emmerson, Gregory D., Gawith, Corin B.E., Sparrow, Ian J.G. and Williams, Richard B.
(2005)
Physical observation of single step UV-written integrated planar Bragg structures and their application as refractive-index sensors.
Applied Optics, 44 (24), .
(doi:10.1364/AO.44.005042).
Abstract
We present what is to our knowledge the first demonstration of a potentially low-cost refractive-index sensor based on UV processing. A channel waveguide and a Bragg grating are defined in a single UV processing step, resulting in a buried structure with a well-defined grating period.
A subsequent wet etch process located over the Bragg grating opens a sensing window in the device and reveals the grating structure. Sensitivity of as much as 5×10-6 was inferred from our device.
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Published date: 2005
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Local EPrints ID: 30194
URI: http://eprints.soton.ac.uk/id/eprint/30194
ISSN: 0003-6935
PURE UUID: eb15cb2c-687a-446a-83a8-56e484ea43c6
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Date deposited: 11 May 2006
Last modified: 16 Mar 2024 03:12
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Author:
Gregory D. Emmerson
Author:
Corin B.E. Gawith
Author:
Ian J.G. Sparrow
Author:
Richard B. Williams
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