Blar i SINTEF Open på forfatter "Dullo, Firehun Tsige"
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MEMS-tunable dielectric metasurface lens using thin-film PZT for large displacements at low voltages
Dirdal, Christopher Andrew; Thrane, Paul Conrad Vaagen; Dullo, Firehun Tsige; Gjessing, Jo; Summanwar, Anand; Tschudi, Jon (Peer reviewed; Journal article, 2022)Tunable focusing is a desired property in a wide range of optical imaging and sensing technologies but has tended to require bulky components that cannot be integrated on-chip and have slow actuation speeds. Recently, ... -
UV-Nanoimprint and Deep Reactive Ion Etching of High Efficiency Silicon Metalenses: High Throughput at Low Cost with Excellent Resolution and Repeatability
Dirdal, Christopher Andrew; Milenko, Karolina Barbara; Summanwar, Anand; Dullo, Firehun Tsige; Thrane, Paul Conrad Vaagen; Rasoga, Oana; Avram, Andrei M.; Dinescu, Adrian; Baracu, Angela M. (Peer reviewed; Journal article, 2023)As metasurfaces begin to find industrial applications there is a need to develop scalable and cost-effective fabrication techniques which offer sub-100 nm resolution while providing high throughput and large area patterning. ... -
UV-Nanoimprint Lithography for Predefined SERS Nanopatterns Which Are Reproducible at Low Cost and High Throughput
Milenko, Karolina Barbara; Dullo, Firehun Tsige; Thrane, Paul Conrad Vaagen; Skokic, Zeljko; Dirdal, Christopher Andrew (Peer reviewed; Journal article, 2023)A controlled and reliable nanostructured metallic substrate is a prerequisite for developing effective surface-enhanced Raman scattering (SERS) spectroscopy techniques. In this study, we present a novel SERS platform ...