Model of superconducting alternating current bolometers

Lindeman, M. A.; Khosropanah, P.; Hijmering, R. A.

doi:10.1063/1.4790146

Cited by 9 publications

(6 citation statements)

References 15 publications

(20 reference statements)

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“…However, with our current device we can make an initial examination of the detector performance. Recently Lindeman et al, [29] have proposed a logarithmic sensitivity for an inductive thermometer:…”

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confidence: 99%

X-ray photon detection using superconducting resonators in thermal quasi-equilibrium

Quaranta

Cecil

Gades

et al. 2013

Supercond. Sci. Technol.

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Superconducting resonators have to date been used for photon detection in a non-equilibrium manner. In this paper, we demonstrate that such devices can also be used in a thermal quasiequilibrium manner to detect X-ray photons. We have used a resonator to measure the temperature rise induced by an X-ray photon absorbed in normal metal and superconducting absorbers on continuous and perforated silicon nitride membranes. We observed two distinct pulses with vastly different decay times. We attribute the shorter pulses to non-equilibrium quasiparticle relaxation and the longer pulses to a thermal relaxation process. In addition, we have measured the temperature dependence of the X-ray induced temperature rise and decay times. Finally, we have measured the resonator sensitivity and energy resolution. Superconducting resonators used in a thermal quasi-equilibrium manner have the potential to be used for X-ray microcalorimetry. a Electronic address: oquaranta@aps.anl.gov b Electronic address: amiceli@aps.anl.gov 1

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confidence: 99%

X-ray photon detection using superconducting resonators in thermal quasi-equilibrium

Quaranta

Cecil

Gades

et al. 2013

Supercond. Sci. Technol.

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“…From figure 2(b) it follows the large value of temperature derivative ∂L k /∂T in comparison with the superconducting strip (see figure 3) which enters the sensitivity α of the kinetic inductance detector or bolometer [32]…”

Section: Temperature Dependence Of Kinetic Inductancementioning

confidence: 92%

Extraordinary kinetic inductance of superconductor/ferromagnet/normal metal thin strip in an Fulde–Ferrell state

Marychev¹,

Vodolazov²

2021

J. Phys.: Condens. Matter

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We have calculated kinetic inductance L k of a thin superconductor/ferromagnet/normal metal strip in an in-plane Fulde-Ferrell (FF) state. We consider range of parameters when FF state appears at temperature T FF < T c (T c is a transition temperature to superconducting state) when the paramagnetic response of FN layers overcomes the diamagnetic response of S layer. We show that L k diverges at T = T FF which is consequence of the second order phase transition to FF state, similar to divergency of L k at T = T c . Kinetic inductance also diverges at finite magnetic field at T < T FF which is consequence of magnetic field driven second order transition to/from FF state. Due to presence in the FF state finite supervelocity, at low current there are two states (metastable and ground) which have different L k . Metastable state is unstable above some critical current which is much smaller than depairing current, above which the ground state becomes unstable. It results in strong dependence of L k on current not only at large currents (near depairing current) but at low currents too. We argue that found properties could be useful in various applications which exploit temperature, current and magnetic field dependence of the kinetic inductance.

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“…where Z is the resonator impedance and R 0 is the resonator resistance [9]. This sensitivity describes how the TKID responds to temperature change and can be calculated from the Mattis-Bardeen equations for surface resistance.…”

Section: Logarithmic Sensitivitymentioning

confidence: 99%

Optimization of thermal kinetic inductance detectors for x-ray spectroscopy

Cecil

Gades

Madden

et al. 2015

IEEE Trans. Appl. Supercond.

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Thermal kinetic inductance detectors (TKIDs) are promising new detectors for use in X-ray spectroscopy because of the relative ease with which they can be fabricated into large arrays. While initial results have hinted at their resolution capability, the ultimate resolution achievable with these detectors has not been described. Using a bolometer matrix formalism, we examine the parameter space of the detector design (i.e., film critical temperature, detector operating temperature, resonator coupling, etc.) to examine the detectors response to noise sources, including phonon, Johnson, bias, and amplifier noise. Finally, we present the design of TKID optimized for 6-keV X-ray spectroscopy.

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Model of superconducting alternating current bolometers

Cited by 9 publications

References 15 publications

X-ray photon detection using superconducting resonators in thermal quasi-equilibrium

X-ray photon detection using superconducting resonators in thermal quasi-equilibrium

Extraordinary kinetic inductance of superconductor/ferromagnet/normal metal thin strip in an Fulde–Ferrell state

Optimization of thermal kinetic inductance detectors for x-ray spectroscopy

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