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We present our recent development of high-temperature superconducting (HTS) Josephson terahertz (THz) detector arrays for imaging. The device is made of 10 Au thin-film antennae-coupled YBa2Cu3Ox−7 step-edge Josephson junction detectors. The design and characterization of the THz detector array, the development of multi-channel biasing and read-out electronics, and the system integration will be described.
In this paper we explore an adaptation of a high-temperature superconducting (HTS) Josephson R-SQUID (Resistive Superconducting Quantum Interference Device) heterodyne oscillator for the detection of terahertz (THz) radiation. This approach can be potentially applied for a large array detector readout in the frequency domain. The design concepts for the R-SQUID THz detector and early measurement results...
The 140 GHz silicon micromachined bandpass rectangular waveguide filters are firstly fabricated by the deep reactive ion etching (DRIE) processes for submillimeter wave applications. The filter circuit structure is once-formed using the ICP reactive ion etcher to etch through the full thickness of the silicon wafer, and then bonded together with the two metallized glass covers to form the waveguide...
Here we report on dynamic patterning of nanoparticles in microfluidic channels using patterned surface plasmon polaritons (SPP) from a gold thin film with highly ordered nanohole arrays. In particular, the constructive interference of SPPs from neighboring holes leads to a periodic distribution of SPP intensities. Such a SPP distribution drives the nanoparticles into positions of minimal SPP intensities,...
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