Sergey V. Shitov

  • Citations Per Year
Learn More
In order to improve the frequency-division multiplexing (FDM) in transition edge sensor (TES) imaging arrays, it is suggested to replace commonly used SQUID amplifiers with a semiconductor high-frequency cooled amplifier. This would result in a single 10-GHz bandwidth amplifier serving the array of more than 1000 detectors. The basic idea is to implement an(More)
To improve both scalability and noise-filtering capability of a transition-edge sensor (TES), a new concept of a thin-film detector is suggested, which is based on embedding a microbridge TES into a high-Q planar GHz-range resonator weakly coupled to a 50-Ω-readout transmission line. Such a TES element is designed as a hot-electron microbolometer(More)
We present results of first experiments with elementary cells for detection of sub-millimeter-wave radiation. The cells realize frequency-division multiplexing (FDM) readout of an antenna coupled superconducting hot electron bolometers (HEB) by means of integrated GHz-range superconducting resonators. Such cells can be coupled to a single transmission line(More)
The combination of narrow linewidth and wide-band tunability makes the Josephson Flux Flow Oscillator (FFO) a perfect on-chip local oscillator for integrated submm-wave receivers. A noise temperature of about 100 K (DSB) has been achieved for the integrated receiver with the FFO operating near 500 GHz. An instantaneous bandwidth of 15 – 20 % is estimated(More)
Low temperature scanning laser microscopy (LTSLM) is demonstrated to be capable of imaging sub-THz electromagnetic fields in cryoelectronic integrated structures. This method allows to evaluate the spatial distribution of timeaveraged field amplitudes with a resolution of about one micrometer for samples with characteristic dimensions of the order of(More)
We measured emissivity of sample presenting panel of ALMA antenna using Band-10 heterodyne SIS receiver as antenna switching balanced radiometer with 8 GHz instantaneous bandwidth. Receiver noise temperature measured with 80 K/300 K antenna loads was ≈560 K (DSB). Emissivity of the surface is detected at LO frequency about 840 GHz via the imbalance of the(More)
Our new detector and readout concept brings together TES (Transition Edge Sensor) and MKID (Microwave Kinetic Inductance Detector) technologies and exploits the idea of a microwave-induced superconducting transition in a small thin-film microbridge. The superconducting transition of the bridge manifests itself as variation in the <italic>Q </italic>-factor(More)