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Timing Jitter and Electron-Phonon Interaction in Superconducting Nanowire Single-Photon Detectors (SNSPDs)

Sidorova, Mariia (2021) Timing Jitter and Electron-Phonon Interaction in Superconducting Nanowire Single-Photon Detectors (SNSPDs). Dissertation, DLR.

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Official URL: https://edoc.hu-berlin.de/handle/18452/23022

Abstract

This Ph.D. thesis is based on the experimental study of two mutually interconnected phenomena: intrinsic timing jitter in superconducting nanowire single-photon detectors (SNSPDs) and relaxation of the electron energy in superconducting films. Microscopically, a building element of any SNSPD device, a superconducting nanowire on top of a dielectric substrate, represents a complex object for both experimental and theoretical studies. The complexity arises because, in practice, the SNSPD utilizes strongly disordered and ultrathin superconducting films, which acoustically mismatch with the underlying substrate, and implies a non-equilibrium state. This thesis addresses the complexity of the most conventional superconducting material used in SNSPD technology, niobium nitride (NbN), by applying several distinct experimental techniques. As an emerging application of the SNSPD technology, we demonstrate a prototype of the dispersive Raman spectrometer with single-photon sensitivity.

Item URL in elib:https://elib.dlr.de/141318/
Document Type:Thesis (Dissertation)
Title:Timing Jitter and Electron-Phonon Interaction in Superconducting Nanowire Single-Photon Detectors (SNSPDs)
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sidorova, MariiaMariia.Sidorova (at) dlr.dehttps://orcid.org/0000-0002-9082-442X
Date:29 January 2021
Journal or Publication Title:Timing Jitter and Electron-Phonon Interaction in Superconducting Nanowire Single-Photon Detectors (SNSPDs)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:143
Status:Published
Keywords:timing jitter, electron-phonon scattering,superconducting single-photon detector
Institution:DLR
Department:Institute of Optical Sensor Systems
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Sidorova, Mariia
Deposited On:15 Mar 2021 14:12
Last Modified:15 Mar 2021 14:12

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