infrared millimeter terahertz waves scientific conferences

Non-contact and noninvasive approaches of trapping nanoscale living biospecimens have gained extensive interests in the biological and nanotechnological applications. Here we have proposed a novel type of graphene based plasmonic nano-tweezers in the terahertz range and numerically demonstrated it capability on effectively trapping deep subwavelength nanoparticle through confining and enhancing the terahertz wave by using graphene annular nanogaps. Most interestingly, the proposed terahertz plasmonic nano-tweezers is even more efficient than the plasmonic nano-tweezers working in the infrared light frequency ranges. It is expected that the terahertz plasmonic nano-tweezers has prodigious potential to trap living biospecimens in a noninvasive approach.