Publications

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OUR PUBLISHED WORKS

Publications

Peruse our published body of work.

Ultra-compact electro-optical modulators based on monolithic BaTiO3 on silicon

A. B. Posadas, A. Raju, D. Hungund, Z. Dong, A. A. Demkov and D. Wasserman, “Ultra-compact electro-optical modulators based on monolithic BaTiO3 on silicon,” 2025 IEEE Silicon Photonics Conference (SiPhotonics), London, United Kingdom, 2025. https://doi.org/10.1109/SiPhotonics64386.2025.10984580

Ferroelectrics for emergent silicon-integrated optical computing

A. A. Demkov, A. B. Posadas and D. Wasserman, “Ferroelectrics for emergent silicon-integrated optical computing,” Proceedings SPIE 13372, Optical Interconnects and Packaging 2025; 133720I (2025). https://doi.org/10.1117/12.3048430

 

Ferroelectric BaTiO3 for electro-optic modulators in Si photonics

Ferroelectric BaTiO3 for electro-optic modulators in Si photonics

A. A. Demkov and A. B. Posadas, “Ferroelectric BaTiO3 for electro-optic modulators in Si photonics,” IEEE J. of Sel. Top. Quantum Electron. 30, 8200113 (2024). https://doi.org/10.1109/JSTQE.2024.3405387

 

Si-Integrated BaTiO3 for Electro-Optic Applications: Crystalline and Polarization Orientation Control

Si-Integrated BaTiO3 for Electro-Optic Applications: Crystalline and Polarization Orientation Control

M. Reynaud, H. Huyan, C. Du, W. Li, A.B. Posadas, X. Pan and A. A. Demkov, “Si-integrated BaTiO3 for Electro-Optic Applications: Crystalline and Polarization Orientation Control,” ACS Appl. Electron. Mater. 5, 4605 (2023). https://doi.org/10.1021/acsaelm.3c00747

 

Evolution of epitaxial BaTiO3 on SrTiO3-buffered Si: Phase field analysis

Evolution of epitaxial BaTiO3 on SrTiO3-buffered Si: Phase field analysis

W. Li, C. M. Landis and A. A. Demkov, “Evolution of epitaxial BaTiO3 on SrTiO3-buffered Si: Phase field analysis,” J. Appl. Phys. 132, 213103 (2022). https://doi.org/10.1063/5.0111188

 

Domain morphology and electro-optic effect in Si-integrated epitaxial BaTi⁢O3 films

Domain morphology and electro-optic effect in Si-integrated epitaxial BaTi⁢O3 films

W. Li, C. M. Landis and A. A. Demkov, “Domain morphology and electro-optic effect in Si-integrated epitaxial BaTi⁢O3 films,” Phys. Rev. Materials 6, 095203 (2022). https://doi.org/10.1103/PhysRevMaterials.6.095203

High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon

High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon

A. Raju, D. Hungund, D. Krueger, Z. Dong, Z. Sakotic, A. Posadas, A. A. Demkov and D. Wasserman, “High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon,” Laser Photonics Review 2025, 2402086. https://doi.org/10.1002/lpor.202402086

Ferroelectrics for emergent silicon-integrated optical computing

Alexander A. Demkov, Agham Posadas, and Daniel Wasserman “Ferroelectrics for emergent silicon-integrated optical computing”, Proc. SPIE 13372, Optical Interconnects and Packaging 2025, 133720I (20 March 2025); https://doi.org/10.1117/12.3048430

Materials for emergent silicon-integrated optical computing

Materials for emergent silicon-integrated optical computing

Alexander A. DemkovChandrajit BajajJohn G. EkerdtChris J. PalmstrømS. J. Ben Yoo; Materials for emergent silicon-integrated optical computing. J. Appl. Phys. 21 August 2021; 130 (7): 070907. https://doi.org/10.1063/5.0056441

Si‑integrated ferroelectrics for photonics and optical computing

Si‑integrated ferroelectrics for photonics and optical computing

Demkov, A. A. and Posadas, A. B., “Si-integrated ferroelectrics for photonics and optical computing”, MRS Bulletin, vol. 47, no. 5, pp. 485–493, 2022. doi:10.1557/s43577-022-00332-3.

Electro-Optic Barium Titanate Modulators on Silicon Photonics Platform

Electro-Optic Barium Titanate Modulators on Silicon Photonics Platform

A. B. Posadas, V. E. Stenger, J. DeFouw, G. Z. Mashanovich, D. Wasserman and A. A. Demkov, “Electro-Optic Barium Titanate Modulators on Silicon Photonics Platform,” 2023 IEEE Silicon Photonics Conference (SiPhotonics), Washington, DC, USA, 2023, pp. 1-2, doi: 10.1109/SiPhotonics55903.2023.10141930.

Barium Titanate Electro-Optic Modulators for Silicon  Photonics Grown by Off-Axis Sputtering

Barium Titanate Electro-Optic Modulators for Silicon Photonics Grown by Off-Axis Sputtering

A. Posadas, M. Reynaud, G. Mashanovich, and A. A. Demkov, “Barium Titanate Electro-Optic Modulators for Silicon Photonics Grown by Off-Axis Sputtering,” in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper SM2H.4.

RF-sputtered Z-cut electro-optic barium titanate modulator on silicon photonic platform

RF-sputtered Z-cut electro-optic barium titanate modulator on silicon photonic platform

Agham B. Posadas , Vincent E. Stenger, John D. DeFouw, Jamie H. Warner, Alexander A. Demkov. RF-sputtered Z-cut electro-optic barium titanate modulator on silicon photonic platform. J. Appl. Phys. 134, 073101 (2023) https://doi.org/10.1063/5.0160186

Monolithic Barium Titanate Modulators on Silicon-on-Insulator Substrates

Monolithic Barium Titanate Modulators on Silicon-on-Insulator Substrates

Zuoming Dong, Amogh Raju, Agham B. Posadas, Marc Reynaud, Alexander A. Demkov, and Daniel M. Wasserman
ACS Photonics 2023 10 (12), 4367-4376
DOI: 10.1021/acsphotonics.3c01144

Thin Films on Silicon: Electronic and Photonic Applications

Thin Films on Silicon: Electronic and Photonic Applications

Vijay Narayanan (IBM Thomas J Watson Research Center, USA), Martin M Frank (IBM Thomas J Watson Research Center, USA), and Alexander A Demkov (The University of Texas at Austin, USA). Materials and Energy: Volume 8. Thin Films on Silicon. Electronic and Photonic Applications. https://doi.org/10.1142/9908

Materials Fundamentals of Gate Dielectrics

Materials Fundamentals of Gate Dielectrics

Alexander A. Demkov, Alexandra Navrotsky Materials Fundamentals of Gate Dielectrics. Springer Dordrecht https://doi.org/10.1007/1-4020-3078-9

Integration of Functional Oxides with Semiconductors

Integration of Functional Oxides with Semiconductors

Alexander A. Demkov, Agham B. Posadas Integration of Functional Oxides with Semiconductors. Springer New York, NY https://doi.org/10.1007/978-1-4614-9320-4