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Femtosecond laser-induced forward transfer of thin layers studied by time-resolved shadowgraphy

Femtosecond laser-induced forward transfer of thin layers studied by time-resolved shadowgraphy
Femtosecond laser-induced forward transfer of thin layers studied by time-resolved shadowgraphy
Laser-induced forward transfer (LIFT), a laser-assisted direct-write method, has been explored for the fabrication and repair of electronic and photonic devices. Besides LIFT with nanosecond (ns) and picosecond (ps) sources, femtosecond pulses (fs-LIFT) has also been investigated since the use of a fs-laser was expected to reduce the interfacial thermal damage of the material to be transferred (referred to as the donor), when compared to LIFT employing ps or ns pulses. In order to further establish the feasibility of LIFT as a valuable tool for micro-fabrication, we studied the dynamics of fs-LIFT (~ 100 fs) of solid donors via a time-resolved shadowgraphy technique with an aim of identifying the velocity of the transferred product, the behaviour and integrity of the donor in transfer (the flyer), and the role of the creation of shock waves. The experiments were carried out with the help of an 800 nm Ti:Sapphire laser and a flash-lamp-illuminated shadowgraph imaging system. Thereby we observed transfer of flyers in intact state at transfer velocities as low as 34 m/s for ~ 1.1 µm thick bismuth selenide donors, and 48 m/s for ~1.8 µm thick lead zirconate titanate. For a ~0.5 µm thick donor of a third alloy we measured a velocity for non-intact transfer of ~ 140 m/s. Contrary to what has been observed so far in time-resolved studies of LIFT, no shock-wave has been observed during the experiments.
Eason, R.W.
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Feinäugle, M.
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Alloncle, A.P.
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Delaporte, Ph.
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Sones, C.L.
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Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Feinäugle, M.
3b15dc5b-ff52-4232-9632-b1be238a750c
Alloncle, A.P.
cfd95507-acd7-48b4-aa90-ae9ac20def96
Delaporte, Ph.
0bc95924-7db9-46b0-9dfd-ac9527337349
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8

Eason, R.W., Feinäugle, M., Alloncle, A.P., Delaporte, Ph. and Sones, C.L. (2013) Femtosecond laser-induced forward transfer of thin layers studied by time-resolved shadowgraphy. Laserlab-Europe Users Meeting, France. 26 - 27 Sep 2013. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Laser-induced forward transfer (LIFT), a laser-assisted direct-write method, has been explored for the fabrication and repair of electronic and photonic devices. Besides LIFT with nanosecond (ns) and picosecond (ps) sources, femtosecond pulses (fs-LIFT) has also been investigated since the use of a fs-laser was expected to reduce the interfacial thermal damage of the material to be transferred (referred to as the donor), when compared to LIFT employing ps or ns pulses. In order to further establish the feasibility of LIFT as a valuable tool for micro-fabrication, we studied the dynamics of fs-LIFT (~ 100 fs) of solid donors via a time-resolved shadowgraphy technique with an aim of identifying the velocity of the transferred product, the behaviour and integrity of the donor in transfer (the flyer), and the role of the creation of shock waves. The experiments were carried out with the help of an 800 nm Ti:Sapphire laser and a flash-lamp-illuminated shadowgraph imaging system. Thereby we observed transfer of flyers in intact state at transfer velocities as low as 34 m/s for ~ 1.1 µm thick bismuth selenide donors, and 48 m/s for ~1.8 µm thick lead zirconate titanate. For a ~0.5 µm thick donor of a third alloy we measured a velocity for non-intact transfer of ~ 140 m/s. Contrary to what has been observed so far in time-resolved studies of LIFT, no shock-wave has been observed during the experiments.

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e-pub ahead of print date: September 2013
Venue - Dates: Laserlab-Europe Users Meeting, France, 2013-09-26 - 2013-09-27
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 368797
URI: http://eprints.soton.ac.uk/id/eprint/368797
PURE UUID: 80040d88-7822-4097-aa88-c428dc885b05
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 17 Sep 2014 13:55
Last modified: 18 Feb 2021 16:36

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Contributors

Author: R.W. Eason ORCID iD
Author: M. Feinäugle
Author: A.P. Alloncle
Author: Ph. Delaporte
Author: C.L. Sones

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