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Optimised-geometry non-colinear upconversion detection using MgO:PPLN

Optimised-geometry non-colinear upconversion detection using MgO:PPLN
Optimised-geometry non-colinear upconversion detection using MgO:PPLN
We report a novel non-colinear upconversion detection geometry operating in the 2 um wavelength range via sum-frequency generation in MgO-doped periodically-poled lithium niobate. Spectral and spatial filtering is utilised for noise mitigation, permitting low-light operation. We further present progress toward a similar scheme for mid-infrared detection, enabling use of high-performance near-infrared detectors at longer wavelengths.
Mennea, Paolo
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Palomar Davidson, Noelia
d3cea415-2675-483c-90ba-c290eb950609
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Mennea, Paolo
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Palomar Davidson, Noelia
d3cea415-2675-483c-90ba-c290eb950609
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Mennea, Paolo, Palomar Davidson, Noelia, Gawith, Corin and Smith, Peter G.R. (2026) Optimised-geometry non-colinear upconversion detection using MgO:PPLN. SPIE Photonics West: Optical Components and Materials XXIV, , San Francisco, United States. 30 Jan - 04 Feb 2026.

Record type: Conference or Workshop Item (Poster)

Abstract

We report a novel non-colinear upconversion detection geometry operating in the 2 um wavelength range via sum-frequency generation in MgO-doped periodically-poled lithium niobate. Spectral and spatial filtering is utilised for noise mitigation, permitting low-light operation. We further present progress toward a similar scheme for mid-infrared detection, enabling use of high-performance near-infrared detectors at longer wavelengths.

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More information

Published date: 30 January 2026
Venue - Dates: SPIE Photonics West: Optical Components and Materials XXIV, , San Francisco, United States, 2026-01-30 - 2026-02-04
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Identifiers

Local EPrints ID: 510746
URI: http://eprints.soton.ac.uk/id/eprint/510746
PURE UUID: 11dab30b-a5d9-4894-b392-1070d6aaf87a
ORCID for Paolo Mennea: ORCID iD orcid.org/0000-0002-1740-5333
ORCID for Noelia Palomar Davidson: ORCID iD orcid.org/0000-0002-6413-5858
ORCID for Corin Gawith: ORCID iD orcid.org/0000-0002-3502-3558
ORCID for Peter G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X

Catalogue record

Date deposited: 21 Apr 2026 16:33
Last modified: 22 Apr 2026 02:12

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Contributors

Author: Paolo Mennea ORCID iD
Author: Noelia Palomar Davidson ORCID iD
Author: Corin Gawith ORCID iD
Author: Peter G.R. Smith ORCID iD

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