IN THIS SECTION
High-Precision Laser-Based Manufacturing Group
The High-Precision Laser-Based Manufacturing (HLM) group, headed by Dr. Ben Mills, is focussed on the development of novel optical processes that are enabling new paradigms in high-precision high-speed laser-machining.
Through the use of a digital micromirror device (DMD), which we use as a spatial light modulator, we are able to change the spatial intensity profile and energy of every single laser pulse, for laser repetition rates up to 30 kHz. By imaging each shaped pulse onto a target sample, we are able to rapidly fabricate extremely precise structures over cm-squared regions.
Currently, the group is focussed on the development of new methods for light manipulation, such as adaptive algorithms based on field propagation, for applications for both additive and subtractive manufacturing, including the development of a subwavelength-resolution 3D laser-printer, substrates that control differentiation pathways of stem-cells for regenerative medicine, and bespoke sensors for aerospace and power generation.
The laser-machining research takes place in the FAST lab, a £1.2 million femtosecond laser facility based at the Optoelectronics Research Centre. The facility is one of the most flexible laser systems of its kind in the world, offering full wavelength tunability from 235 nm (UV) to 10 μm (IR) and hence enabling unparalleled research flexibility.
- Laser Micromachining Limited
- SPI Lasers
- University Hospital Southampton
- School of Medicine
“Beam-shaping for Laser-based Additive and Subtractive-manufacturing Techniques (BLAST)”, £861,709, November 2016 to 31 October 2021
- 7334 — M.Feinäugle, D.J.Heath, B.Mills, J.A.Grant-Jacob, G.Z.Mashanovich, R.W.EasonLaser-induced backward transfer of nanoimprinted polymer elements
Applied Physics A Materials Science and Processing 2016 Vol.122(4) pp.1-5
Abstract Southampton ePrint: 381939
- 7037 — D.J.Heath, B.Mills, M.Feinäugle, R.W.EasonRapid bespoke laser ablation of variable period grating structures using a digital micromirror device for multi-colored surface images
Applied Optics 2015 Vol.54(16) 4984-4988
Abstract Southampton ePrint: 378397
- 6908 — D.J.Heath, M.Feinäugle, J.Grant-Jacob, B.Mills, R.W.EasonDynamic spatial pulse shaping via a digital micromirror device for patterned laser-induced forward transfer of solid polymer films
Optical Materials Express 2015 Vol.5(5) pp.1129-1136
Abstract Southampton ePrint: 378492
- 6616 — B.Mills, D.J.Heath, M.Feinäugle, J.A.Grant-Jacob, R.W.EasonLaser ablation via programmable image projection for submicron dimension machining in diamond
Journal of Laser Applications 2014 Vol.26(4) pp.41501
Abstract Southampton ePrint: 368440
- 6247 — C.L.Sones, I.N.Katis, B.Mills, M.Feinäugle, A.Mosayyebi, J.Butement, R.W.EasonRapid and mask-less laser-processing technique for the fabrication of microstructures in polydimethylsiloxane
Applied Surface Science 2014 Vol.298 pp.125-129
Abstract Southampton ePrint: 362748
- 6201 — J.A.Grant-Jacob, B.Mills, R.W.EasonParametric study of the rapid fabrication of glass nanofoam via femtosecond laser irradiation
Journal of Physics D: Applied Physics 2014 Vol.47(5) pp.055105
Abstract Southampton ePrint: 360945
- 5852 — J.Grant-Jacob, B.Mills, M.Feinäugle, C.L.Sones, G.Oosterhuis, M.B.Hoppenbrouwers, R.W.EasonMicron-scale copper wires printed using femtosecond laser-induced transfer with automated donor replenishment
Optical Materials Express 2013 Vol.3(6) pp.747-754
Abstract Southampton ePrint: 356441
- 5833 — B.Mills, J.A.Grant-Jacob, M.Feinäugle, R.W.EasonSingle-pulse multiphoton polymerisation of complex structures using a digital multimirror device
Optics Express 2013 Vol.21(12) pp.14853-14858
Abstract Southampton ePrint: 356463
- 5632 — B.Mills, M.Feinäugle, N.Rizvi, R.W.EasonSub-micron-scale femtosecond laser ablation using a digital micromirror device
Journal of Micromechanics and Microengineering 2013 Vol.23 pp.035005 Online at: stacks.iop.org/JMM/23/035005
Abstract Southampton ePrint: 347756
- 5208 — B.Mills, D.Kundys, M.Farsari, S.Mailis, R.W.EasonSingle-pulse multiphoton fabrication of high aspect ratio structures with sub-micron features using vortex beams
Applied Physics A 2012 Vol.108(3) pp.651-655 online first
Abstract Southampton ePrint: 339966
Lasers have fundamentally transformed manufacturing in the past decades, and they are now routinely used for the machining of almost all size scales from micro-scale medical devices to battleships. However, the laser beam shape is generally not changed during machining.
We are developing new methods for light manipulation, such as adaptive algorithms based on field propagation, for applications for both additive and subtractive manufacturing, including the development of a subwavelength-resolution 3D laser-printer, substrates that control differentiation pathways of stem-cells for regenerative medicine, and bespoke sensors for aerospace and power generation.
Copyright University of Southampton 2006