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1 mm ultrafast superconducting stripline molecule detector
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View: Figures


Image of FIG. 1.
FIG. 1.

Optical micrograph of the 1-mm-square, five parallel Nb-SSLD (a) and equivalent circuit diagram (b). The parts surrounded by the dashed squares are enlarged in the right side. Circuit simulation for the five parallel Nb-SSLD. The superconducting normal transition is induced by a single molecular impact in one stripline, resulting a resistance of . The resistor is due to the wiring between the 4.2 K stage and room temperature. For PSpice simulation, a finite virtual resistance was connected in series with each stripline.

Image of FIG. 2.
FIG. 2.

Simulated output pulse for the five parallel SSPD (a), experimental output pulses for Angiotensin I obtained by the five parallel (b) and ten parallel (c) SSLDs. The red curves are exponential decays fitted with the decay constants of 1.8 and 0.92 ns for the five and ten parallel SSLDs, respectively.

Image of FIG. 3.
FIG. 3.

Time-of-flight spectrum of IgG (146 kDa) multimers obtained by the five parallel SSLD. The peaks at TOF values shorter than that for originates from , the fragments of IgG (for example, singly charged half molecule: ), and matrix molecules (Ref. 15). The inset shows the logarithmic plot with the numbers of oligomerization.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 1 mm ultrafast superconducting stripline molecule detector