K. Ahmadi

1. Advancements in Laser and LED-Based Optical Wireless Power Transfer for IoT Applications: A Comprehensive Review
   Kimia Ahmadi; Wouter Serdijn;
   IEEE Internet of Things Journal,
   pp. 1-25, 2025. DOI: 10.1109/jiot.2025.3542968
   
   Abstract: ...

   Optical wireless power transfer (OWPT) has emerged as a promising technology for efficient wireless power transfer (WPT), offering advantages such as directionality, suitability for far-field applications, and the ability to transfer power and data simultaneously. This comprehensive review classifies OWPT systems into laser power transfer (LPT) and LED-based OWPT. LPT uses the narrow divergence of laser beams for high-density, long-distance energy transfer, making it suitable for applications such as satellites, autonomous drones, and electric vehicle charging. In contrast, LED-based OWPT offers a safer, more cost-effective solution for low-power applications, especially in the Internet of Things (IoT) domain. It offers advantages such as lower power consumption and fewer safety restrictions compared to LPT. Innovations in LPT, such as high-intensity laser power beaming, distributed laser charging, adaptive distributed laser charging, simultaneous lightwave information and power transfer, and resonant beam charging are discussed. Also, recent advancements in LED-OWPT, including single-lens and double-lens systems, collimation techniques, and multi-LED arrays, are explored for their potential in powering IoT devices, wearable electronics, and smart infrastructure. First, we present a radar chart comparing various WPT techniques with respect to performance criteria. After reviewing the methods of LPT and LED-OWPT in detail, a comparison of these techniques is provided, evaluating their strengths, limitations, and application suitability. A concluding radar chart offers insights for optimizing OWPT systems tailored to specific applications. Future research directions are identified, emphasizing the need for further advancements in beam alignment, safety protocols, and hybrid systems to enhance OWPT’s scalability and practicality in real-world scenarios.
   
   document

2. Growth of multi-layered graphene on molybdenum catalyst by solid phase reaction with amorphous carbon
   Filiberto Ricciardella; Sten Vollebregt; Evgenia Kurganova; A.J.M. Giesbers; Majid Ahmadi; Lina Sarro;
   2D Materials,
   Volume 6, pp. 035012, 2019. DOI: 10.1088/2053-1583/ab1518

3. 2017 Index IEEE Transactions on Biomedical Circuits and Systems Vol. 11
   Abarbanel, HDI; Abbott, D; Abdelhalim, K; Adamantidis, A; Ahmad, IL; Ahmad, MR; Ahmadi, A; Akhter, M; Akinin, A; Alharbi, A; others;
   IEEE Transactions on Biomedical Circuits and Systems,
   Volume 11, Issue 6, pp. 1501, 2017.

4. A New Architecture for Rail-to-Rail Input Constant-gm CMOS Operational Transconductance Amplifiers
   M.M. Ahmadi; R. Lotfi; Sharif-Bakhtiar, M.;
   In Proceedings of the International Symposium on Low Power Electronics and Design,
   pp. 353-358, 2003.

BibTeX support