Substrateless Platform: A Promising Route to THz Integration

Most THz integrated systems have been directly scaled from existing microwave or optical platforms. However, as suggested by this notion, these platforms were designed specifically for their respective frequency ranges, accounting for band-specific requirements and restrictions. Consequently, their THz realizations did not meet expectations in terms of bandwidth, efficiency, and functionality. Here, we propose our substrateless integrated platform, designed specifically for the THz domain. This platform employs only intrinsic silicon to achieve top efficiency. A wide range of functions in broadband is supported by flexibility of effective medium. In this talk, I will cover the design principles and various functional devices, including filters, multiplexers, switches, modulators, antennas, and sensors, all with the prospect of monolithic integration.