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High-speed phonon imaging using frequency-multiplexed kinetic inductance detectors
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10.1063/1.3459142
/content/aip/journal/apl/96/26/10.1063/1.3459142
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/26/10.1063/1.3459142
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Array micrograph. Each line of five pixels was designed to occupy a 50 MHz bandwidth. The five labeled pixels were used to measure phonon propagation. (b) LEKID. (c) In-phase (I) and quadrature (Q) transmission amplitudes. The numeric labels correspond to the pixels in (a), the arrows indicate the direction of increasing frequency and the star marks the origin. (d) Total transmitted amplitude for the measurement shown in (c), calculated using .

Image of FIG. 2.
FIG. 2.

Electronic readout. A digital-signal processing card is used to frequency-multiplex the resonators. The individual components shown are: (i) high-frequency synthesizer (0.1–8 GHz), (ii) splitter, (iii) mixer, (iv) attenuator, (v) amplifier, and (vi) low-pass filter.

Image of FIG. 3.
FIG. 3.

Calibration. (a) The phase as measured around the resonance curve in the IQ plane. The solid curve is a circular fit to the curvature near the resonance. The start (◻) and end (◇) points of the frequency sweep in (b) are displayed. (b) Frequency-dependence of for a 120 kHz sweep around the resonance frequency.

Image of FIG. 4.
FIG. 4.

(a) Calibrated high-speed detection of a cosmic event using 5 KIDs. The individual responses are offset by 100 kHz. The dashed vertical line is the time that a resonator trigger level was exceeded, in this case by pixel 1. (b) Zoom of initial rise clearly showing the propagation delay.

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/content/aip/journal/apl/96/26/10.1063/1.3459142
2010-07-01
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-speed phonon imaging using frequency-multiplexed kinetic inductance detectors
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/26/10.1063/1.3459142
10.1063/1.3459142
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