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Laser processing of amorphous silicon on lithium niobate for photonic applications

Laser processing of amorphous silicon on lithium niobate for photonic applications
Laser processing of amorphous silicon on lithium niobate for photonic applications
Silicon (Si) and lithium niobate (LiNbO3) are two materials that are synonymous with the electronics and photonics industries respectively and are supported by a significant amount of technological know-how. It has been suggested and demonstrated recently that Si could also be used for the production of integrated photonic devices, however its performance can be limited by the transmission cutoff at short wavelengths, a relatively high two-photon absorption, and lack of second order nonlinear optical susceptibility. LiNbO3 on the other hand is a very good dielectric material with high second order nonlinearity but with very little electronic functionality. It can be envisaged however that these two materials have complementary properties therefore there is significant merit in combining them into a single hybrid system that will benefit from the properties of its constituents as demonstrated in [1] on a directly bonded single crystal hybrid. In this contribution we will present results on laser processing of amorphous silicon films deposited on LiNbO3 and other substrates suggesting a new route for the fabrication of Si based photonic circuits. This research is based on recent encouraging results of a laser based crystallization process obtained in a-Si core optical fibres that not only obtained crystallites with very large aspect ratio but also allowed for tuning of the Si bandgap [2]. &more...
Mailis, Sakellaris
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Martinez Jimenez, Gregorio
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Zisis, Greg
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Franz, Yohann
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Healy, Noel
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Grech, David
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Chong, Harold
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Peacock, Anna
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Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Martinez Jimenez, Gregorio
6f3b34dd-33de-42b0-a69d-56e724da239b
Zisis, Greg
45a0bf08-5ab7-4d9b-9ad9-65ca7bf739a9
Franz, Yohann
edb6208c-9f65-42c4-965e-b6bc54945602
Healy, Noel
26eec85c-8d12-4f21-a67a-022f8dc2daab
Grech, David
f44a3fe2-5f50-4192-9018-3fccd1612ceb
Chong, Harold
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Mailis, Sakellaris, Martinez Jimenez, Gregorio, Zisis, Greg, Franz, Yohann, Healy, Noel, Grech, David, Chong, Harold and Peacock, Anna (2016) Laser processing of amorphous silicon on lithium niobate for photonic applications. FNM 2016: International Workshop on Functional and Nanostructured Materials, Georgia. 06 Sep 2016. 1 pp .

Record type: Conference or Workshop Item (Other)

Abstract

Silicon (Si) and lithium niobate (LiNbO3) are two materials that are synonymous with the electronics and photonics industries respectively and are supported by a significant amount of technological know-how. It has been suggested and demonstrated recently that Si could also be used for the production of integrated photonic devices, however its performance can be limited by the transmission cutoff at short wavelengths, a relatively high two-photon absorption, and lack of second order nonlinear optical susceptibility. LiNbO3 on the other hand is a very good dielectric material with high second order nonlinearity but with very little electronic functionality. It can be envisaged however that these two materials have complementary properties therefore there is significant merit in combining them into a single hybrid system that will benefit from the properties of its constituents as demonstrated in [1] on a directly bonded single crystal hybrid. In this contribution we will present results on laser processing of amorphous silicon films deposited on LiNbO3 and other substrates suggesting a new route for the fabrication of Si based photonic circuits. This research is based on recent encouraging results of a laser based crystallization process obtained in a-Si core optical fibres that not only obtained crystallites with very large aspect ratio but also allowed for tuning of the Si bandgap [2]. &more...

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e-pub ahead of print date: 8 September 2016
Venue - Dates: FNM 2016: International Workshop on Functional and Nanostructured Materials, Georgia, 2016-09-06 - 2016-09-06
Related URLs:
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 400827
URI: https://eprints.soton.ac.uk/id/eprint/400827
PURE UUID: fa6d95af-a5ea-4e8a-9d31-dd07196652b0
ORCID for Sakellaris Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for Harold Chong: ORCID iD orcid.org/0000-0002-7110-5761
ORCID for Anna Peacock: ORCID iD orcid.org/0000-0002-1940-7172

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Date deposited: 29 Sep 2016 15:51
Last modified: 07 Aug 2019 00:48

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