Abstract
Current technology trends imply that further miniaturization and integration of systems are anticipated, and one approach to realizing the next generation of systems integration is the development of materials that are protean, or capable of taking on various properties; in essence, the materials properties can be selectively altered via laser excitation. The objective is that a common substrate material can be used for multiple functions. Laser direct-write material processing, because of its maskless patterning flexibility, is inherently suitable for producing localized changes in materials properties and thereby fabricating linked, integrated devices on a common substrate. The enabling of this new form of materials processing requires a light-activated protean material along with a scheme for the dynamic regulation of the laser energy for optimum laser processing on the scale of the laser spot size and for patterning speeds on the order of meters per second. The “protean material” concept and a high-fidelity laser amplitude-modulation scheme are the focus of this article.
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Livingston, F.E., Helvajian, H. The Symbiosis of Light and Matter: Laser-Engineered Materials for Photo-Functionality. MRS Bulletin 32, 40–46 (2007). https://doi.org/10.1557/mrs2007.13
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DOI: https://doi.org/10.1557/mrs2007.13