Dr. Ajay Poddar

Recently, Graphene has received extensive attention due to its remarkable structural (single layer of graphite, exhibits mechanical properties like thin paper or plastic with large bulk modulus along the plane of Graphene, easily bent or curved) and superior electronic and optical properties. This unique characteristic allows Graphene wrap into carbon nanotubes without deformation, qualifies to use Graphene to build Möbius-Strips for the applications in microwave and optical components for modern communication systems. Möbius-Strips formed by Graphene nanoribbons found extraordinarily stable. These unique magnetic properties make the Möbius-Strips Graphene building blocks in spintronic devices.

Möbius-Strip is a non-vanishing curvature, exhibits special symmetry. The recent publication describes EM (electromagnetic) Möbius symmetry introduced into a metamaterial (metamolecular), made from metals and dielectrics. The electromagnetic symmetry discovered in the metamaterial is equivalent to the structural symmetry of a Möbius-Strip, with the number of twists controlled by the sign change of the electromagnetic coupling between the meta-atoms. The negative index artificial material (metamaterial) with different coupling signs exhibit resonance frequencies that depend only on the number of turns but not the locations of the ‘‘twists,’’ thus confirming its Möbius Symmetry. The hyperspace Möbius mechanism  transforms ordinary benzene molecules into metamolecules with Mobius symmetry: “the topological phenomenon that yields a half-twisted strip with two surfaces but only one side”. It exhibits like 3-body system like a trimmer, metallic resonant meta-atoms configured as coupled split-ring resonators, symbolized as metamolecules exhibits topological Möbius-Cyclic-Symmetry (C₃-symmetry) through three rotations of 120-degrees, and Möbius-twists result from a change in the signs of the electromagnetic coupling constants between the constituent meta-atoms. In this talk speaker will explain the metamterial equivalent composite strips made of Mobius band for the applications in nano structures.

Biography:

Dr. Ajay K. Poddar graduated from IIT (India Institute of Technology) Delhi, India; Doctorate (Dr.-Ing.) from TUB (Technical University Berlin), Germany;  Post Doctorate (Dr.-Ing. habil) from BTU (Brandenburg Technology University Cottbus), Senftenberg, Germany.  Dr. Poddar is a Chief Scientist at Synergy Microwave, Visiting Professor at Oradea University-Romania, Guest lecturer at Technical University Berlin-Germany; Academic Advisory Board Member of Don Bosco Institute of Engineering, Bombay.

At Synergy Microwave, Dr. Poddar is responsible for design and development of host of frequency generating and signal processing modules for industrial and space communication applications.  Previously, he worked as a Senior Scientist from 1991-2001 at Defense Research & Development Organization (DRDO), India where he was program manager of many scientific projects. Dr. Poddar’s scientific career has made a profound effect on the electronics industry notably in the area of high performance microwave systems, which include oscillators, synthesizers, mixers, and microwave circuit design techniques; commercialized and produced in million for both commercial and space applications. 

Dr. Poddar has received several awards for his scientific achievements, technological innovations, and meritorious services; holds several dozen patents and published over 250 scientific papers in international conferences and professional journals, contributed as an author/coauthor of 6-technical books. Dr. Poddar’s photo depicted on the cover page of Microwave Journal (vol. 54, No.11, November 2011) for his 25 years of scientific contributions, cited as one ­­­of “Divine Innovators” in the advancement of microwave technologies based on global voting. Dr. Poddar recently selected by the IEEE Ultrasonics, Ferroelectrics, and Frequency Control (IFCS) to receive the prestigious 2015 IFCS W.G. Cady Award in recognition of his outstanding contributions on the analysis, design, and development of a host of frequency control products exhibiting state-of-the-art performance, including the development of extremely low noise crystal oscillator circuitry.

Email:

Address:University of Oradea, , Romania, Romania

Dr. Ajay Poddar

Address:United States

Dr. Ajay Poddar

Biography:

Email:

Address:Romania, Romania

Dr. Ajay Poddar

Biography:

Address:United States

Dr. Ajay Poddar

Biography:

Email:

Address:Romania, Romania

Dr. Ajay Poddar

Biography:

Address:United States