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Laser-induced forward transfer-printing of focused ion beam pre-machined crystalline magneto-optic garnet discs

Laser-induced forward transfer-printing of focused ion beam pre-machined crystalline magneto-optic garnet discs
Laser-induced forward transfer-printing of focused ion beam pre-machined crystalline magneto-optic garnet discs
Laser-Induced Forward Transfer (LIFT) is a laser-based printing technique which has been regularly employed in the printing of many different materials, on various substrates, for the realization of many diverse applications. There are however some fundamental difficulties inherent to LIFT printing, and these include unavoidable partial ablation or melting of a surface region of the printed donor material due to the absorption of the laser pulse. Sacrificial, absorbing layer based methods have been used to avoid this, however, these Dynamic Release Layer (DRL) LIFT methods result in contamination of the deposits. DRL-LIFT of comparatively brittle materials such as single crystals is problematic since the growth of a thin crystalline donor film directly on top of a polymer DRL is impossible because the high substrate temperatures required for thin film epitaxial growth are far higher than the polymer decomposition temperatures. Another problem concerns the unavoidable shearing and tearing of the donor around its edges during transfer. To achieve much more precise and controlled printing, pre-patterning of donor is therefore highly desirable to precisely define the spatial extent of donor to be transferred. We report femtosecond LIFT printing of focussed ion beam pre-machined crystalline magneto-optic Yttrium Iron Garnet donors. Debris-free circular micro-disks with smooth edges and surface uniformity have been successfully printed from pre-machined donors.
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Feinäugle, M.
3b15dc5b-ff52-4232-9632-b1be238a750c
Gholipour, B.
c17bd62d-9df6-40e6-bc42-65272d97e559
Sposito, A.
388e78c2-03ac-42aa-9b3c-99cfb3c17813
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Feinäugle, M.
3b15dc5b-ff52-4232-9632-b1be238a750c
Gholipour, B.
c17bd62d-9df6-40e6-bc42-65272d97e559
Sposito, A.
388e78c2-03ac-42aa-9b3c-99cfb3c17813
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Sones, C.L., Feinäugle, M., Gholipour, B., Sposito, A. and Eason, R.W. (2012) Laser-induced forward transfer-printing of focused ion beam pre-machined crystalline magneto-optic garnet discs. E-MRS '12 Materials Research Society Spring Meeting, Strasbourg, France.

Record type: Conference or Workshop Item (Paper)

Abstract

Laser-Induced Forward Transfer (LIFT) is a laser-based printing technique which has been regularly employed in the printing of many different materials, on various substrates, for the realization of many diverse applications. There are however some fundamental difficulties inherent to LIFT printing, and these include unavoidable partial ablation or melting of a surface region of the printed donor material due to the absorption of the laser pulse. Sacrificial, absorbing layer based methods have been used to avoid this, however, these Dynamic Release Layer (DRL) LIFT methods result in contamination of the deposits. DRL-LIFT of comparatively brittle materials such as single crystals is problematic since the growth of a thin crystalline donor film directly on top of a polymer DRL is impossible because the high substrate temperatures required for thin film epitaxial growth are far higher than the polymer decomposition temperatures. Another problem concerns the unavoidable shearing and tearing of the donor around its edges during transfer. To achieve much more precise and controlled printing, pre-patterning of donor is therefore highly desirable to precisely define the spatial extent of donor to be transferred. We report femtosecond LIFT printing of focussed ion beam pre-machined crystalline magneto-optic Yttrium Iron Garnet donors. Debris-free circular micro-disks with smooth edges and surface uniformity have been successfully printed from pre-machined donors.

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More information

Published date: 2012
Venue - Dates: E-MRS '12 Materials Research Society Spring Meeting, Strasbourg, France, 2012-01-01
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 367821
URI: http://eprints.soton.ac.uk/id/eprint/367821
PURE UUID: 0224a126-52cf-4c0b-967d-1b49e1da2be1
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 15 Sep 2014 10:21
Last modified: 18 Feb 2021 16:36

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