Publications

2023

W. Akbar, A. Allam, and F. Adib, “The Underwater Backscatter Channel: Theory, Link Budget, and Experimental Validation,” in Proceedings of the 29th Annual International Conference on Mobile Computing and Networking, in ACM MobiCom ’23. New York, NY, USA: Association for Computing Machinery, Oct. 2023, pp. 1–15. doi: 10.1145/3570361.3613265.
A. Eid, J. Rademacher, W. Akbar, P. Wang, A. Allam, and F. Adib, “Enabling Long-Range Underwater Backscatter via Van Atta Acoustic Networks,” in Proceedings of the ACM SIGCOMM 2023 Conference, in ACM SIGCOMM ’23. New York, NY, USA: Association for Computing Machinery, Sep. 2023, pp. 1–19. doi: 10.1145/3603269.3604814.
A. Allam, C. L. Arrington, C. St. John, J. Steinfeldt, A. Erturk, and I. El-Kady, “System-Level DC-to-DC Analysis and Experiments of Ultrasonic Power Transfer Through Metallic Barriers,” IEEE/ASME Transactions on Mechatronics, vol. 28, no. 1, pp. 15–25, Feb. 2023, doi: 10.1109/TMECH.2022.3195973. (Preprint)

A. Allam, K. Sabra, and A. Erturk, “Piezoelectric Transducer Design for Simultaneous Ultrasonic Power Transfer and Backscatter Communication,” Smart Mater. Struct., vol. 31, no. 9, p. 095003, Jul. 2022, doi: 10.1088/1361-665X/ac7b57. (Preprint)
A. Allam, O. Alfahmi, H. Patel, C. Sugino, M. Harding, M. Ruzzene, & A. Erturk, “Ultrasonic Testing of Thick and Thin Inconel 625 Alloys Manufactured by Laser Powder Bed Fusion,” Ultrasonics, vol. 125, p. 106780, Sep. 2022, doi: 10.1016/j.ultras.2022.106780. (Full Text)

A. Allam, C. Sugino, M. Harding, D. P. Bishop, A. Erturk, and M. Ruzzene, “Phased Array Ultrasonic Testing of Inconel 625 Produced by Selective Laser Melting,” ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems, vol. 4, no. 041006, May 2021, doi: 10.1115/1.4050963. (Full Text)
A. Allam, K. Sabra, and A. Erturk, “Sound Energy Harvesting by Leveraging a 3D-Printed Phononic Crystal Lens,” Applied Physics Letters, vol. 118, no. 10, p. 103504, Mar. 2021, doi: 10.1063/5.0030698. (Preprint)

A. Allam, K. Sabra, and A. Erturk, “3D-Printed Gradient-Index Phononic Crystal Lens for Underwater Acoustic Wave Focusing,” Physical Review Applied, vol. 13, no. 6, p. 064064, Jun. 2020, doi: 10.1103/PhysRevApplied.13.064064. (Full Text)
A. Allam, K. G. Sabra, and A. Erturk, “Aspect Ratio-Dependent Dynamics of Piezoelectric Transducers in Wireless Acoustic Power Transfer,” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 67, no. 5, pp. 984–996, May 2020, doi: 10.1109/TUFFC.2019.2962711. (Preprint)

S. Alan, A. Allam, and A. Erturk, “Programmable Mode Conversion and Bandgap Formation for Surface Acoustic Waves Using Piezoelectric Metamaterials,” Applied Physics Letters, vol. 115, no. 9, p. 093502, Aug. 2019, doi: 10.1063/1.5110701. (Preprint)

A. Allam, A. Elsabbagh, and W. Akl, “Experimental Demonstration of One-Dimensional Active Plate-Type Acoustic Metamaterial with Adaptive Programmable Density,” Journal of Applied Physics, vol. 121, no. 12, p. 125106, Mar. 2017, doi: 10.1063/1.4979020. (Accepted Version)

A. Allam, A. Elsabbagh, and W. Akl, “Modeling and Design of Two-Dimensional Membrane-type Active Acoustic Metamaterials with Tunable Anisotropic Density,” The Journal of the Acoustical Society of America, vol. 140, no. 5, pp. 3607–3618, Nov. 2016, doi: 10.1121/1.4966627. (Preprint)