Professor Gary Cheng has been named the Best Author Award by the International Journal of Extreme Manufacturing (IJEM) in 2024. This prestigious recognition honors his team's multiple submission, based on their groundbreaking work on scalable laser nanomanufacturing platforms for producing nanoalloys.
Their research has led to the creation of high-volume, high-density, uniform, and ultrafine nanometal particle arrays, as well as the graphene encapsulation of nanoalloys to achieve well-aligned and tunable plasmonic surfaces. This innovative nanomaterial synthesis technique has applications in bio/chemical sensing, electromagnetic shielding for sixth-generation (6G) communication, and hydrogen energy.
The first of the awarded submissions, "Revolutionizing Plasmonic Platform via Magnetic Field-Assisted Confined Ultrafast Laser Deposition of High-Density, Uniform, and Ultrafine Nanoparticle Arrays," presents a tunable plasmonic platform design. This is achieved through magnetic field-assisted ultrafast laser direct deposition in air, using cobalt (Co) as the model material. By precisely controlling the metal nanoparticles and fine-tuning the laser parameters, Cheng's team successfully converted coarse, non-uniform nanoparticles into densely packed, uniform, and ultrafine nanoparticles (~3 nm). This advancement creates customizable plasmonic 'hot spots,' crucial for surface-enhanced Raman spectroscopy (SERS) sensors.
The second paper, titled "Laser-Forged Transformation and Encapsulation of Nanoalloys: Pioneering Robust Wideband Electromagnetic Wave Absorption and Shielding from GHz to THz," addresses the needs of upcoming 6G communication standards that incorporate terahertz (THz) frequencies alongside existing gigahertz (GHz) modes. This study introduces a novel strategy called "ultrafast laser-induced thermal-chemical transformation and encapsulation of nanoalloys (LITENs)," aiming to create a versatile multi-band electromagnetic wave absorbing and shielding material.
Professor Cheng's contributions represent significant advancements in plasmonic platform design and electromagnetic wave absorption, poised to impact the future of nanotechnology and communication standards.
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Gary J. Cheng
