Recent Advances on High-Speed and Holographic Two-Photon Direct Laser Writing
- 1. Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano, LE 73010, Italy
Description
Two-Photon Lithography, thanks to its very high sub-diffraction resolution, has become the lithographic technique par excellence in applications requiring small feature sizes and complex 3D pattering. Despite this, the fabrication times required for extended structures remain much longer than those of other competing techniques (UV mask lithography, nanoimprinting, etc.). Its low throughput prevents its wide adoption in industrial applications. To increase it, over the years different solutions have been proposed, although their usage is difficult to generalize and may be limited depending on the specific application. A promising strategy to further increase the throughput of Two-Photon Lithography, opening a concrete window for its adoption in industry, lies in its combination with holography approaches: in this way it is possible to generate dozens of foci from a single laser beam, thus parallelizing the fabrication of periodic structures, or to engineer the intensity distribution on the writing plane in a complex way, obtaining 3D microstructures with a single exposure. Here, the fundamental concepts behind high-speed Two-Photon Lithography and its combination with holography are discussed, and the literary production of recent years that exploits such techniques is reviewed, and contextualized according to the topic covered.
Notes
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Adv Funct Materials - 2023 - Balena - Recent Advances on High‐Speed and Holographic Two‐Photon Direct Laser Writing.pdf
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Additional details
Related works
- Is identical to
- 10.1002/adfm.202211773 (DOI)
Funding
- MODEM – Multipoint Optical DEvices for Minimally invasive neural circuits interface 677683
- European Commission
- BrainBIT – All-optical brain-to-brain behaviour and information transfer 692943
- European Commission
- DEEPER – DEEP BRAIN PHOTONIC TOOLS FOR CELL-TYPE SPECIFIC TARGETING OF NEURAL DISEASES 101016787
- European Commission
- Controlling the spatial extent of light-based monitoring and manipulation of neural activity in vivo 1UF1NS108177-01
- National Institutes of Health
- NanoBRIGHT – BRInGing nano-pHoTonics into the brain 828972
- European Commission
- IN DEPTH – INtroDucing axial rEsolution in oPToelectronic implantable devices for tHe brain 966674
- European Commission