Strong negative electrothermal feedback in thermal kinetic inductance detectors

Agrawal, Shubh; Steinbach, B.; Bock, J. J.; Frez, Clifford; Minutolo, L.; Nguyen, Hien; O’Brient, R.; Turner, Anthony; Wandui, A.

doi:10.1063/5.0064723

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…It combines the multiplexing advantage of KIDs with the proven performance of bolometric designs in TES detectors, at the expense of fabrication complexity. It has recently been shown that the thermal circuit performs similarly to a TES, with the RF readout power providing a mechanism for electrothermal feedback that is essential to achieving the stability and dynamic range required [59]. Early examples of TKIDs focused on development of sensors for detection of x-rays [61,62]; however, new mm-wave designs for future CMB experiments are underway [63], as shown in Figure 6.…”

Section: Thermal Kinetic Inductance Detectorsmentioning

confidence: 99%

Large-Format, Transmission-Line-Coupled Kinetic Inductance Detector Arrays for HEP at Millimeter Wavelengths

Barry¹,

Chang²,

Golwala³

et al. 2022

Preprint

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The kinetic inductance detector (KID) is a versatile and scalable detector technology with a wide range of applications. These superconducting detectors offer significant advantages: simple and robust fabrication, intrinsic multiplexing that will allow thousands of detectors to be read out with a single microwave line, and simple and low cost room temperature electronics. These strengths make KIDs especially attractive for HEP science via mm-wave cosmological studies. Examples of these potential cosmological observations include studying cosmic acceleration (Dark Energy) through measurements of the kinetic Sunyaev-Zeldovich effect, precision cosmology through ultra-deep measurements of small-scale CMB anisotropy, and mm-wave spectroscopy to map out the distribution of cosmological structure at the largest scales and highest redshifts. The principal technical challenge for these kinds of projects is the successful deployment of large-scale high-density focal planes-a need that can be addressed by KID technology. In this paper, we present an overview of microstrip-coupled KIDs for use in mm-wave observations and outline the research and development needed to advance this class of technology and enable these upcoming large-scale experiments.

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Section: Thermal Kinetic Inductance Detectorsmentioning

confidence: 99%

Large-Format, Transmission-Line-Coupled Kinetic Inductance Detector Arrays for HEP at Millimeter Wavelengths

Barry¹,

Chang²,

Golwala³

et al. 2022

Preprint

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show abstract

“…Whatever the source, the bottleneck in the recombination of these quasiparticles is their accompanying background distribution of phonons and the phonon escape time into the substrate [83]. This feature lends itself to the simple model where the quasipar ticle temperature is decoupled from the phonon temperature and has been useful in mod eling the response of Thermal Kinetic Inductance Detectors (TKIDs) [73,84,85]. For nonthermal sensors like MKIDs, this model has also been shown to be applicable to the nonequilibrium creation of quasiparticles by a photon signal, which allows us to use it in this dissertation [86].…”

Section: Quasiparticle Densitymentioning

confidence: 99%

Improving the Resolving Power of Ultraviolet to Near-Infrared Microwave Kinetic Inductance Detectors

Zobrist¹

2022

Springer Theses

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dark matter searches to biological imaging and astronomy. The performance of these de tectors often limits the achievable science goals for an application, so improvements to detector technologies can be transformative. This dissertation focuses on these detector enhancements, emphasizing the requirements for one particular application, exoplanet di rect imaging. However, the work done here remains broadly applicable to fields needing highly sensitive sensors in this wavelength range.Finding and studying the properties of exoplanets orbiting distant stars can tell us much about solar system dynamics and the formation of our own solar system. With sufficiently precise measurements we might also discover the presence of water or even biological processes on these planets. To achieve this goal, we need astronomical instrumentation ca pable of separating an exoplanet's light from its host star by directly imaging it. For many exoplanets, though, we receive at our telescope only roughly one photon for every billion from the star. Even worse, these two light sources often partially overlap because of the relative closeness of exoplanets to their stars and the diffraction limit set by the finite size xi of our telescope optics. Therefore, the extreme contrast ratio between the brightness of the star and planet sets the performance requirements for this kind of instrument.Carrying out this measurement with the traditional semiconductor based sensors can be difficult. They detect the intensity of light at each pixel and introduce excess noise into the system. However, superconducting sensors avoid this limitation because of their ex tra sensitivity. Each individual incident photon can be resolved making them essentially perfect photon counting detectors, which enables the detection of exoplanets with more challenging contrast ratios than detectable with conventional detectors. The system noise in a superconducting sensor, instead, determines how accurately the photon energy can be measured through the size of the detector response. Because of this extra energy measure ment capability these detectors do not need the complicated optical systems typically used to measure an exoplanet's atmospheric spectrum. The accuracy at which we can resolve these planetary spectra determines how much we can learn about a planet and, as such, is the principal metric for the performance of these devices.The Microwave Kinetic Inductance Detector (MKID) is unique among other supercon ducting technologies because it allows for the simple readout of tens to hundreds of thou sands of pixels, which is a requirement for when the exact location of an exoplanet is un known. This dissertation focuses on improving the spectral resolving power of MKIDs to make them the superior option for ultraviolet to nearinfrared measurements and, in partic ular, for exoplanet direct imaging. Chapters 1 and 2 discuss the significance of MKIDs as astronomical detectors and the relevant physics needed to understand their operation. In the following chapters, four sepa...

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MKID Physics

Zobrist

2022

Improving the Resolving Power of Ultraviolet to Near-Infrared Microwave Kinetic Inductance Detectors

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Strong negative electrothermal feedback in thermal kinetic inductance detectors

Cited by 5 publications

References 21 publications

Large-Format, Transmission-Line-Coupled Kinetic Inductance Detector Arrays for HEP at Millimeter Wavelengths

Large-Format, Transmission-Line-Coupled Kinetic Inductance Detector Arrays for HEP at Millimeter Wavelengths

Improving the Resolving Power of Ultraviolet to Near-Infrared Microwave Kinetic Inductance Detectors

MKID Physics

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