Publications
Recent Papers
Alex Kaloyeros, and Spyros Gallis. Polarization-dependent photoluminescence properties of fab-compatible nanowire-based nanophotonic structures. Appl. Phys. Lett. 120, 231104 (2022).
Mounika Kotha, Alex Kaloyeros, Thomas Murray, and Spyros Gallis. Wavelength-Dependent Anisotropic Optical Properties in Layered GaTe for Polarization-Sensitive Applications. Adv. Photonics Res. 2, 2100140 (2021).
Natasha Tabassum, Vasileios Nikas, Alex E. Kaloyeros, Vidya Kaushik, Edward Crawford, Mengbing Huang, and Spyros Gallis. Engineered Telecom Emission and Controlled Positioning of Er3+ Enabled by SiC Nanophotonic Structures. Nanophotonics, 9, 1425 (2020).
Mounika Kotha, Thomas Murray, David Tuschel and Spyros Gallis. Study of Oxidation and Polarization-Dependent Optical Properties of Environmentally Stable Layered GaTe Using a Novel Passivation Approach. Nanomaterials 9, 1510 (2019).
Tabassum N., Kotha M., Kaushik V., Ford B., Dey S., Crawford E., Nikas V., and Gallis S. On-demand CMOS-Compatible Fabrication of Ultrathin Self-Aligned SiC Nanowire Arrays. Nanomaterials 8, 906 (2018).
Previous Selected Papers
D. Vipin, N. Modi, T. Reynolds, B. Zhang, N. Tabassum, G. Bhowmik, V. Nikas, S. Chakraborty, S. Gallis, M. Huang. Effects of forming gas annealing on luminescence properties of erbium silicate thin films. AIP Advances 9, 065018 (2019).
B. Ford, N. Tabassum, V. Nikas, S. Gallis. Strong photoluminescence enhancement of silicon oxycarbide through defect engineering. Materials 10, 446 (2017).
Tabassum N., Nikas V., Ford B., Crawford E., and Gallis S. Engineering Er placement and emission through chemically synthesized self-aligned SiC:Ox nanowire photonic crystal structures. arXiv:1707.05738v2 (2017).
A.V. Vasin, M. Adlung, V.A. Tertykh, D. Kysil, S. Gallis, A.N. Nazarov, VS Lysenko. Broad band (UV–VIS) photoluminescence from carbonized fumed silica: Emission, excitation and kinetic properties. Journal of luminescence 190, 141 (2017).
N. Tabassum, V. Nikas, B. Ford, M. Huang, A. E. Kaloyeros, S. Gallis. Time-resolved analysis of the white photoluminescence from chemically synthesized SiCxOy thin films and nanowires. Appl. Phys. Lett. 109, 043104 (2016).
V. Nikas, N. Tabassum, B. Ford, L. Smith, A. E. Kaloyeros, S. Gallis. Strong visible light emission from silicon-oxycarbide nanowire arrays prepared by electron beam lithography and reactive ion etching. J. Mater. Res. 30, 3692 (2015). Invited feature paper
V. Nikas, S. Gallis, M. Huang, A. E. Kaloyeros, A. P. D. Nguyen, A. Stesmans and V. V. Afanas'ev: The origin of white luminescence from silicon oxycarbide thin films. Appl. Phys. Lett. 104, 061906 (2014).
H. Suhag, V. K. Kamineni, R. L. Moore II, S. Gallis, A. C. Diebold, M. Huang, A. E. Kaloyeros. Optical and structural characterization of oxidation annealing effects on electron beam deposited erbium thin films on silicon. J. Appl. Phys. 111, 013104 (2012).
V. Nikas, S. Gallis, M. Huang and A. Kaloyeros. Thermal annealing effects on photoluminescence properties of carbon doped silicon-rich oxide thin films implanted with erbium. J. Appl. Phys. 109, 093521 (2011).
S. Gallis, V. Nikas, H. Suhag, M. Huang, and A. E. Kaloyeros. White light emission from amorphous silicon oxycarbide (a-SiCxOy) thin films: Role of composition and post-deposition annealing. Appl. Phys. Lett. 97, 081905 (2010).
S. Galis, et al. A 0.039um2 high performance eDRAM cell based on 32nm High-K/Metal SOI Technology. IEEE International Electron Devices 10, 616 (2010).
S. Gallis, V. Nikas, E. Eisenbraun, M. Huang, A. E. Kaloyeros. On the effects of thermal treatment on the composition, structure, morphology and optical properties of hydrogenated amorphous silicon-oxycarbide. J. Mater. Res., 24, 2561, (2009).
S. Gallis, M. Huang and A. E. Kaloyeros. Efficient energy transfer from silicon oxycarbide matrix to Er ions via indirect excitation mechanisms. App. Phys. Let. 90, 161914 (2007).
S. Gallis, V. Nikas, M. Huang, E. Eisenbraun, and A. E. Kaloyeros. Comparative study of the effects of thermal treatment on the optical properties of hydrogenated amorphous silicon-oxycarbide. J. Appl. Phys. 102, 024302 (2007).
S. Gallis, M. Huang, H. Efstathiadis, E. Eisenbraun, E.E. Nyein, U. Hommerich and A.E. Kaloyeros. Photoluminescence in erbium doped amorphous silicon oxycarbide thin films. App. Phys. Let. 87, 091901 (2005).
Book Chapters
Tabassum N., Kotha M., Kaushik V., Ford B., Dey S., Crawford E., Nikas V., and Gallis S. On-demand CMOS-Compatible Fabrication of Ultrathin Self-Aligned SiC Nanowire Arrays. Silicon-Based Nanomaterials: Technology and Applications (MDPI, 2018). doi.org/10.3390/
Spyros Gallis, Vasileios Nikas and Alain E. Kaloyeros. Silicon Oxycarbide Thin films and Nanostructures: Synthesis, Properties and Applications. Modern Technologies for Creating Thin-film Systems and Coatings (InTech, 2017). www.intechopen.com/books
Patents
Galis Spyros, et al. Hybrid bonding interface for 3-dimensional chip integration. US8349729 B2, US 13/418716 (2013).
Recent Presentations
Spyros Gallis. Single- and Multi-Photon Sources Enhanced by Materials Design. Electrical, Computer and Biomedical Engineering Department – Union College, (2023 - Rescheduled). Invited talk
Spyros Gallis, SGNano Group Overview - Telecom Solid-State Single-Photon Emitters, AIM Photonics Workshop (2022), Invited talk
Spyros Gallis. Toward Scalable Telecom Single-Photon Emitters for Quantum Photonics. Silicon Carbide (SiC) Materials & Devices Workshop at Ohio Aerospace Institute (OAI), (2021). Invited lecture
Spyros Gallis. Quantum State Generation. Quantum Workshop, Global Center - SUNY, (2020). Invited talk
Spyros Gallis. Novel Solid State Single-Ions For Quantum Plasmonic Sensing. Million Dollar International Quantum U Tech Accelerator, Innovare Advancement Center (2020). Invited talk/ International Competition
Spyros Gallis. Solid-state telecom single-photon emitters. Quantum Workshop: Distributed Quantum Systems Enhanced by Materials Design. University at Buffalo, (2019). Invited talk
Spyros Gallis. Scalable Nanophotonic Structures for Long-Distance Quantum Communications. Quantum Information Science 1st International Workshop at Air Force Research Laboratory (AFRL), (2019). Invited presentation
Spyros Gallis. On-Demand CMOS-Compatible Fabrication of Ultrathin Self-Aligned SiC Nanowire Arrays for Quantum Photonics at Telecom Wavelengths. Silicon Carbide (SiC) Materials & Devices Workshop at Air Force Research Laboratory (AFRL), (2018). Invited talk
N. Tabassum, V. Nikas, B. Ford, and S. Gallis. Tailoring Rare-Earth Ion Positioning and Emission through Self-aligned SiC:O Photonic Crystal Nanostructures. MRS Fall Meeting (2017)
N. Tabassum, V. Nikas, B. Ford, E. Crawford, M. Huang, and S. Gallis. Investigation of the Structural and Optical Behavior of Self-Aligned SiC:Er3+ NWs for Quantum Technologies. MRS Spring Meeting (2017)
Spyros Gallis. Material Behaviors of Self-aligned Silicon-Carbide Nanowire Arrays Doped with Erbium Towards Quantum Applications. 48th Silicon Symposium (2017). Invited talk
N. Tabassum, V. Nikas, B. Ford, S. Gallis. Realization of Self-Aligned Erbium-Doped Silicon-Carbide Nanowires towards Quantum Technologies. AVS Hudson Mohawk Chapter Fall Meeting (2016). Awarded as best graduate presentation
Spyros Gallis. Functional Nanomaterials and Devices for Electronics, Sensors, Energy Harvesting. NATO Advanced Research Workshop, Lviv, Ukraine (2015). Keynote speaker – Invited talk
V. Nikas, B. Ford, N. Tabassum, M. Huang, A. E. Kaloyeros, and S. Gallis. Strong white-light emission from silicon-oxycarbide nanowire systems prepared by electron beam lithography and reactive ion etching. MRS Spring Meeting (2015).
V. Nikas, N. Tabassum, B. Ford, M. Huang, A. E. Kaloyeros and S. Gallis. On the effects of hybrid thermal passivation treatments on the structural and photoluminescence properties of silicon-oxycarbide (SiCxOy) thin films. MRS Spring Meeting (2015).
Recent Student Posters
E. Haarer, A. Kaloyeros, and S. Gallis. Near-Infrared Single Photon Microscopy. Fall AVS Hudson Mohawk Meeting (2020). Best undergraduate student poster presentation award.
B. Harrington, N. Tabassum, and S. Gallis. Modeling of Erbium Emission in Novel Silicon Carbide Photonic Crystal Nanostructures. Spring AVS Hudson Mohawk Meeting (2019). Undergraduate student poster presentation award
M. Kotha and S. Gallis. Effect of oxidation on the Raman and photoluminescence properties of unpassivated and novel passivated layered quasi-2D GaTe. AVS Hudson Mohawk Chapter (2018). Best graduate poster award
N. Tabassum, V. Nikas, B. Ford, E. Crawford, and S. Gallis. Material behaviors of ultrathin self-aligned silicon-carbide nanowire array doped with Erbium towards quantum applications. IEEE Nanotechnology Symposium Program (2017).