▎ 摘　　要

NOVELTY - The device has a patterned metal groove structure (4) which is arranged on graphene strip structures (3) of metamaterial structural unit. A silicon substrate (1) is provided with silicon dioxide insulating layer (2). The metal electrode pads (5,6) of gate electrode structure are respectively arranged on sides of upper end surface of main portion. The left graphene strips and right graphene strips are interconnected by graphene ribbon structures. The vertical gap is formed in vertically arranged metal groove of patterned metal groove structure and passed through metamaterial structural unit along groove center line. The patterned graphene strip structure is arranged vertically along center line of metamaterial structural unit and symmetrical in horizontal direction and asymmetric in vertical direction. The vertical gap is formed between adjacent elements of the metal metamaterial structure. USE - Dual-band graphene-metal slot meta material terahertz slow light device with flexible and selective control. ADVANTAGE - The dual-band graphene-metal slot meta material terahertz slow light device is controlled flexibly and selectively. The multi-working frequency band of the light device is achieved with wide narrow tunable range, simple structure and preparation process. The external equipment required for excitation mode is simple in structure with high reliability, wide active range and high linearity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing dual-band graphene-metal slot meta material terahertz slow light device. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the dual-band graphene-metal slot meta material terahertz slow light device. Silicon substrate (1) Silicon dioxide insulating layer (2) Graphene strip structure (3) Patterned metal groove structure (4) Metal electrode pads (5,6)